/* * Copyright 2011-2012 Con Kolivas * Copyright 2011-2012 Luke Dashjr * Copyright 2010 Jeff Garzik * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the Free * Software Foundation; either version 3 of the License, or (at your option) * any later version. See COPYING for more details. */ #include "config.h" #ifdef HAVE_CURSES #include #endif #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifndef WIN32 #include #endif #include #include #include #include #include #include "compat.h" #include "miner.h" #include "findnonce.h" #include "adl.h" #include "driver-cpu.h" #include "driver-opencl.h" #include "bench_block.h" #include "scrypt.h" #if defined(unix) #include #include #include #endif #if defined(USE_BITFORCE) || defined(USE_ICARUS) || defined(USE_MODMINER) # define USE_FPGA # define USE_FPGA_SERIAL #elif defined(USE_ZTEX) # define USE_FPGA #endif struct strategies strategies[] = { { "Failover" }, { "Round Robin" }, { "Rotate" }, { "Load Balance" }, { "Balance" }, }; static char packagename[256]; bool opt_protocol; static bool opt_benchmark; bool have_longpoll; bool want_per_device_stats; bool use_syslog; bool opt_quiet; bool opt_realquiet; bool opt_loginput; bool opt_compact; const int opt_cutofftemp = 95; int opt_log_interval = 5; int opt_queue = 1; int opt_scantime = 60; int opt_expiry = 120; int opt_bench_algo = -1; static const bool opt_time = true; unsigned long long global_hashrate; #ifdef HAVE_OPENCL int opt_dynamic_interval = 7; int nDevs; int opt_g_threads = 2; int gpu_threads; #ifdef USE_SCRYPT bool opt_scrypt; #endif #endif bool opt_restart = true; static bool opt_nogpu; struct list_head scan_devices; static signed int devices_enabled; static bool opt_removedisabled; int total_devices; struct cgpu_info **devices; bool have_opencl; int opt_n_threads = -1; int mining_threads; int num_processors; #ifdef HAVE_CURSES bool use_curses = true; #else bool use_curses; #endif static bool opt_submit_stale = true; static int opt_shares; bool opt_fail_only; static bool opt_fix_protocol; bool opt_autofan; bool opt_autoengine; bool opt_noadl; char *opt_api_allow = NULL; char *opt_api_groups; char *opt_api_description = PACKAGE_STRING; int opt_api_port = 4028; bool opt_api_listen; bool opt_api_network; bool opt_delaynet; bool opt_disable_pool = true; char *opt_icarus_options = NULL; char *opt_icarus_timing = NULL; bool opt_worktime; #ifdef HAVE_LIBUSB int opt_usbdump = -1; #endif char *opt_kernel_path; char *cgminer_path; #if defined(USE_BITFORCE) bool opt_bfl_noncerange; #endif #define QUIET (opt_quiet || opt_realquiet) struct thr_info *thr_info; static int gwsched_thr_id; static int stage_thr_id; static int watchpool_thr_id; static int watchdog_thr_id; #ifdef HAVE_CURSES static int input_thr_id; #endif int gpur_thr_id; static int api_thr_id; static int total_threads; #ifdef HAVE_LIBUSB pthread_mutex_t cgusb_lock; #endif pthread_mutex_t hash_lock; static pthread_mutex_t qd_lock; static pthread_mutex_t *stgd_lock; pthread_mutex_t console_lock; pthread_mutex_t ch_lock; static pthread_rwlock_t blk_lock; static pthread_mutex_t sshare_lock; pthread_rwlock_t netacc_lock; static pthread_mutex_t lp_lock; static pthread_cond_t lp_cond; pthread_mutex_t restart_lock; pthread_cond_t restart_cond; pthread_cond_t gws_cond; double total_mhashes_done; static struct timeval total_tv_start, total_tv_end; pthread_mutex_t control_lock; pthread_mutex_t stats_lock; int hw_errors; int total_accepted, total_rejected, total_diff1; int total_getworks, total_stale, total_discarded; double total_diff_accepted, total_diff_rejected, total_diff_stale; static int staged_rollable; unsigned int new_blocks; static unsigned int work_block; unsigned int found_blocks; unsigned int local_work; unsigned int total_go, total_ro; struct pool **pools; static struct pool *currentpool = NULL; int total_pools, enabled_pools; enum pool_strategy pool_strategy = POOL_FAILOVER; int opt_rotate_period; static int total_urls, total_users, total_passes, total_userpasses; static #ifndef HAVE_CURSES const #endif bool curses_active; static char current_block[40]; static char *current_hash; char *current_fullhash; static char datestamp[40]; static char blocktime[32]; struct timeval block_timeval; static char best_share[8] = "0"; uint64_t best_diff = 0; struct block { char hash[40]; UT_hash_handle hh; int block_no; }; static struct block *blocks = NULL; int swork_id; /* For creating a hash database of stratum shares submitted that have not had * a response yet */ struct stratum_share { UT_hash_handle hh; bool block; struct work *work; int id; }; static struct stratum_share *stratum_shares = NULL; char *opt_socks_proxy = NULL; static const char def_conf[] = "cgminer.conf"; static char *default_config; static bool config_loaded; static int include_count; #define JSON_INCLUDE_CONF "include" #define JSON_LOAD_ERROR "JSON decode of file '%s' failed\n %s" #define JSON_LOAD_ERROR_LEN strlen(JSON_LOAD_ERROR) #define JSON_MAX_DEPTH 10 #define JSON_MAX_DEPTH_ERR "Too many levels of JSON includes (limit 10) or a loop" #if defined(unix) static char *opt_stderr_cmd = NULL; static int forkpid; #endif // defined(unix) bool ping = true; struct sigaction termhandler, inthandler; struct thread_q *getq; static int total_work; struct work *staged_work = NULL; struct schedtime { bool enable; struct tm tm; }; struct schedtime schedstart; struct schedtime schedstop; bool sched_paused; static bool time_before(struct tm *tm1, struct tm *tm2) { if (tm1->tm_hour < tm2->tm_hour) return true; if (tm1->tm_hour == tm2->tm_hour && tm1->tm_min < tm2->tm_min) return true; return false; } static bool should_run(void) { struct timeval tv; struct tm *tm; if (!schedstart.enable && !schedstop.enable) return true; gettimeofday(&tv, NULL); tm = localtime(&tv.tv_sec); if (schedstart.enable) { if (!schedstop.enable) { if (time_before(tm, &schedstart.tm)) return false; /* This is a once off event with no stop time set */ schedstart.enable = false; return true; } if (time_before(&schedstart.tm, &schedstop.tm)) { if (time_before(tm, &schedstop.tm) && !time_before(tm, &schedstart.tm)) return true; return false; } /* Times are reversed */ if (time_before(tm, &schedstart.tm)) { if (time_before(tm, &schedstop.tm)) return true; return false; } return true; } /* only schedstop.enable == true */ if (!time_before(tm, &schedstop.tm)) return false; return true; } void get_datestamp(char *f, struct timeval *tv) { struct tm *tm; tm = localtime(&tv->tv_sec); sprintf(f, "[%d-%02d-%02d %02d:%02d:%02d]", tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday, tm->tm_hour, tm->tm_min, tm->tm_sec); } void get_timestamp(char *f, struct timeval *tv) { struct tm *tm; tm = localtime(&tv->tv_sec); sprintf(f, "[%02d:%02d:%02d]", tm->tm_hour, tm->tm_min, tm->tm_sec); } static void applog_and_exit(const char *fmt, ...) { va_list ap; va_start(ap, fmt); vapplog(LOG_ERR, fmt, ap); va_end(ap); exit(1); } static pthread_mutex_t sharelog_lock; static FILE *sharelog_file = NULL; static void sharelog(const char*disposition, const struct work*work) { char *target, *hash, *data; struct cgpu_info *cgpu; unsigned long int t; struct pool *pool; int thr_id, rv; char s[1024]; size_t ret; if (!sharelog_file) return; thr_id = work->thr_id; cgpu = thr_info[thr_id].cgpu; pool = work->pool; t = (unsigned long int)(work->tv_work_found.tv_sec); target = bin2hex(work->target, sizeof(work->target)); hash = bin2hex(work->hash, sizeof(work->hash)); data = bin2hex(work->data, sizeof(work->data)); // timestamp,disposition,target,pool,dev,thr,sharehash,sharedata rv = snprintf(s, sizeof(s), "%lu,%s,%s,%s,%s%u,%u,%s,%s\n", t, disposition, target, pool->rpc_url, cgpu->api->name, cgpu->device_id, thr_id, hash, data); free(target); free(hash); free(data); if (rv >= (int)(sizeof(s))) s[sizeof(s) - 1] = '\0'; else if (rv < 0) { applog(LOG_ERR, "sharelog printf error"); return; } mutex_lock(&sharelog_lock); ret = fwrite(s, rv, 1, sharelog_file); fflush(sharelog_file); mutex_unlock(&sharelog_lock); if (ret != 1) applog(LOG_ERR, "sharelog fwrite error"); } static char *getwork_req = "{\"method\": \"getwork\", \"params\": [], \"id\":0}\n"; static char *gbt_req = "{\"id\": 0, \"method\": \"getblocktemplate\", \"params\": [{\"capabilities\": [\"coinbasetxn\", \"workid\", \"coinbase/append\"]}]}\n"; /* Return value is ignored if not called from add_pool_details */ struct pool *add_pool(void) { struct pool *pool; pool = calloc(sizeof(struct pool), 1); if (!pool) quit(1, "Failed to malloc pool in add_pool"); pool->pool_no = pool->prio = total_pools; pools = realloc(pools, sizeof(struct pool *) * (total_pools + 2)); pools[total_pools++] = pool; mutex_init(&pool->pool_lock); if (unlikely(pthread_cond_init(&pool->cr_cond, NULL))) quit(1, "Failed to pthread_cond_init in add_pool"); mutex_init(&pool->stratum_lock); mutex_init(&pool->gbt_lock); INIT_LIST_HEAD(&pool->curlring); /* Make sure the pool doesn't think we've been idle since time 0 */ pool->tv_idle.tv_sec = ~0UL; pool->rpc_req = getwork_req; pool->rpc_proxy = NULL; return pool; } /* Pool variant of test and set */ static bool pool_tset(struct pool *pool, bool *var) { bool ret; mutex_lock(&pool->pool_lock); ret = *var; *var = true; mutex_unlock(&pool->pool_lock); return ret; } bool pool_tclear(struct pool *pool, bool *var) { bool ret; mutex_lock(&pool->pool_lock); ret = *var; *var = false; mutex_unlock(&pool->pool_lock); return ret; } struct pool *current_pool(void) { struct pool *pool; mutex_lock(&control_lock); pool = currentpool; mutex_unlock(&control_lock); return pool; } char *set_int_range(const char *arg, int *i, int min, int max) { char *err = opt_set_intval(arg, i); if (err) return err; if (*i < min || *i > max) return "Value out of range"; return NULL; } static char *set_int_0_to_9999(const char *arg, int *i) { return set_int_range(arg, i, 0, 9999); } static char *set_int_1_to_65535(const char *arg, int *i) { return set_int_range(arg, i, 1, 65535); } static char *set_int_0_to_10(const char *arg, int *i) { return set_int_range(arg, i, 0, 10); } static char *set_int_1_to_10(const char *arg, int *i) { return set_int_range(arg, i, 1, 10); } #ifdef USE_FPGA_SERIAL static char *add_serial(char *arg) { string_elist_add(arg, &scan_devices); return NULL; } #endif static char *set_devices(char *arg) { int i = strtol(arg, &arg, 0); if (*arg) { if (*arg == '?') { devices_enabled = -1; return NULL; } return "Invalid device number"; } if (i < 0 || i >= (int)(sizeof(devices_enabled) * 8) - 1) return "Invalid device number"; devices_enabled |= 1 << i; return NULL; } static char *set_balance(enum pool_strategy *strategy) { *strategy = POOL_BALANCE; return NULL; } static char *set_loadbalance(enum pool_strategy *strategy) { *strategy = POOL_LOADBALANCE; return NULL; } static char *set_rotate(const char *arg, int *i) { pool_strategy = POOL_ROTATE; return set_int_range(arg, i, 0, 9999); } static char *set_rr(enum pool_strategy *strategy) { *strategy = POOL_ROUNDROBIN; return NULL; } /* Detect that url is for a stratum protocol either via the presence of * stratum+tcp or by detecting a stratum server response */ bool detect_stratum(struct pool *pool, char *url) { if (!extract_sockaddr(pool, url)) return false; if (opt_scrypt) return false; if (!strncasecmp(url, "stratum+tcp://", 14)) { pool->rpc_url = strdup(url); pool->has_stratum = true; pool->stratum_url = pool->sockaddr_url; return true; } return false; } static char *set_url(char *arg) { struct pool *pool; total_urls++; if (total_urls > total_pools) add_pool(); pool = pools[total_urls - 1]; arg = get_proxy(arg, pool); if (detect_stratum(pool, arg)) return NULL; opt_set_charp(arg, &pool->rpc_url); if (strncmp(arg, "http://", 7) && strncmp(arg, "https://", 8)) { char *httpinput; httpinput = malloc(255); if (!httpinput) quit(1, "Failed to malloc httpinput"); strcpy(httpinput, "http://"); strncat(httpinput, arg, 248); pool->rpc_url = httpinput; } return NULL; } static char *set_user(const char *arg) { struct pool *pool; if (total_userpasses) return "Use only user + pass or userpass, but not both"; total_users++; if (total_users > total_pools) add_pool(); pool = pools[total_users - 1]; opt_set_charp(arg, &pool->rpc_user); return NULL; } static char *set_pass(const char *arg) { struct pool *pool; if (total_userpasses) return "Use only user + pass or userpass, but not both"; total_passes++; if (total_passes > total_pools) add_pool(); pool = pools[total_passes - 1]; opt_set_charp(arg, &pool->rpc_pass); return NULL; } static char *set_userpass(const char *arg) { struct pool *pool; char *updup; if (total_users || total_passes) return "Use only user + pass or userpass, but not both"; total_userpasses++; if (total_userpasses > total_pools) add_pool(); pool = pools[total_userpasses - 1]; updup = strdup(arg); opt_set_charp(arg, &pool->rpc_userpass); pool->rpc_user = strtok(updup, ":"); if (!pool->rpc_user) return "Failed to find : delimited user info"; pool->rpc_pass = strtok(NULL, ":"); if (!pool->rpc_pass) return "Failed to find : delimited pass info"; return NULL; } static char *enable_debug(bool *flag) { *flag = true; /* Turn on verbose output, too. */ opt_log_output = true; return NULL; } static char *set_schedtime(const char *arg, struct schedtime *st) { if (sscanf(arg, "%d:%d", &st->tm.tm_hour, &st->tm.tm_min) != 2) return "Invalid time set, should be HH:MM"; if (st->tm.tm_hour > 23 || st->tm.tm_min > 59 || st->tm.tm_hour < 0 || st->tm.tm_min < 0) return "Invalid time set."; st->enable = true; return NULL; } static char* set_sharelog(char *arg) { char *r = ""; long int i = strtol(arg, &r, 10); if ((!*r) && i >= 0 && i <= INT_MAX) { sharelog_file = fdopen((int)i, "a"); if (!sharelog_file) applog(LOG_ERR, "Failed to open fd %u for share log", (unsigned int)i); } else if (!strcmp(arg, "-")) { sharelog_file = stdout; if (!sharelog_file) applog(LOG_ERR, "Standard output missing for share log"); } else { sharelog_file = fopen(arg, "a"); if (!sharelog_file) applog(LOG_ERR, "Failed to open %s for share log", arg); } return NULL; } static char *temp_cutoff_str = NULL; char *set_temp_cutoff(char *arg) { int val; if (!(arg && arg[0])) return "Invalid parameters for set temp cutoff"; val = atoi(arg); if (val < 0 || val > 200) return "Invalid value passed to set temp cutoff"; temp_cutoff_str = arg; return NULL; } static void load_temp_cutoffs() { int i, val = 0, device = 0; char *nextptr; if (temp_cutoff_str) { for (device = 0, nextptr = strtok(temp_cutoff_str, ","); nextptr; ++device, nextptr = strtok(NULL, ",")) { if (device >= total_devices) quit(1, "Too many values passed to set temp cutoff"); val = atoi(nextptr); if (val < 0 || val > 200) quit(1, "Invalid value passed to set temp cutoff"); devices[device]->cutofftemp = val; } } else { for (i = device; i < total_devices; ++i) { if (!devices[i]->cutofftemp) devices[i]->cutofftemp = opt_cutofftemp; } return; } if (device <= 1) { for (i = device; i < total_devices; ++i) devices[i]->cutofftemp = val; } } static char *set_api_allow(const char *arg) { opt_set_charp(arg, &opt_api_allow); return NULL; } static char *set_api_groups(const char *arg) { opt_set_charp(arg, &opt_api_groups); return NULL; } static char *set_api_description(const char *arg) { opt_set_charp(arg, &opt_api_description); return NULL; } #ifdef USE_ICARUS static char *set_icarus_options(const char *arg) { opt_set_charp(arg, &opt_icarus_options); return NULL; } static char *set_icarus_timing(const char *arg) { opt_set_charp(arg, &opt_icarus_timing); return NULL; } #endif static char *set_null(const char __maybe_unused *arg) { return NULL; } /* These options are available from config file or commandline */ static struct opt_table opt_config_table[] = { #ifdef WANT_CPUMINE OPT_WITH_ARG("--algo|-a", set_algo, show_algo, &opt_algo, "Specify sha256 implementation for CPU mining:\n" "\tauto\t\tBenchmark at startup and pick fastest algorithm" "\n\tc\t\tLinux kernel sha256, implemented in C" #ifdef WANT_SSE2_4WAY "\n\t4way\t\ttcatm's 4-way SSE2 implementation" #endif #ifdef WANT_VIA_PADLOCK "\n\tvia\t\tVIA padlock implementation" #endif "\n\tcryptopp\tCrypto++ C/C++ implementation" #ifdef WANT_CRYPTOPP_ASM32 "\n\tcryptopp_asm32\tCrypto++ 32-bit assembler implementation" #endif #ifdef WANT_X8632_SSE2 "\n\tsse2_32\t\tSSE2 32 bit implementation for i386 machines" #endif #ifdef WANT_X8664_SSE2 "\n\tsse2_64\t\tSSE2 64 bit implementation for x86_64 machines" #endif #ifdef WANT_X8664_SSE4 "\n\tsse4_64\t\tSSE4.1 64 bit implementation for x86_64 machines" #endif #ifdef WANT_ALTIVEC_4WAY "\n\taltivec_4way\tAltivec implementation for PowerPC G4 and G5 machines" #endif ), #endif OPT_WITH_ARG("--api-allow", set_api_allow, NULL, NULL, "Allow API access only to the given list of [G:]IP[/Prefix] addresses[/subnets]"), OPT_WITH_ARG("--api-description", set_api_description, NULL, NULL, "Description placed in the API status header, default: cgminer version"), OPT_WITH_ARG("--api-groups", set_api_groups, NULL, NULL, "API one letter groups G:cmd:cmd[,P:cmd:*...] defining the cmds a groups can use"), OPT_WITHOUT_ARG("--api-listen", opt_set_bool, &opt_api_listen, "Enable API, default: disabled"), OPT_WITHOUT_ARG("--api-network", opt_set_bool, &opt_api_network, "Allow API (if enabled) to listen on/for any address, default: only 127.0.0.1"), OPT_WITH_ARG("--api-port", set_int_1_to_65535, opt_show_intval, &opt_api_port, "Port number of miner API"), #ifdef HAVE_ADL OPT_WITHOUT_ARG("--auto-fan", opt_set_bool, &opt_autofan, "Automatically adjust all GPU fan speeds to maintain a target temperature"), OPT_WITHOUT_ARG("--auto-gpu", opt_set_bool, &opt_autoengine, "Automatically adjust all GPU engine clock speeds to maintain a target temperature"), #endif OPT_WITHOUT_ARG("--balance", set_balance, &pool_strategy, "Change multipool strategy from failover to even share balance"), OPT_WITHOUT_ARG("--benchmark", opt_set_bool, &opt_benchmark, "Run cgminer in benchmark mode - produces no shares"), #if defined(USE_BITFORCE) OPT_WITHOUT_ARG("--bfl-range", opt_set_bool, &opt_bfl_noncerange, "Use nonce range on bitforce devices if supported"), #endif #ifdef WANT_CPUMINE OPT_WITH_ARG("--bench-algo|-b", set_int_0_to_9999, opt_show_intval, &opt_bench_algo, opt_hidden), #endif #ifdef HAVE_CURSES OPT_WITHOUT_ARG("--compact", opt_set_bool, &opt_compact, "Use compact display without per device statistics"), #endif #ifdef WANT_CPUMINE OPT_WITH_ARG("--cpu-threads|-t", force_nthreads_int, opt_show_intval, &opt_n_threads, "Number of miner CPU threads"), #endif OPT_WITHOUT_ARG("--debug|-D", enable_debug, &opt_debug, "Enable debug output"), OPT_WITH_ARG("--device|-d", set_devices, NULL, NULL, "Select device to use, (Use repeat -d for multiple devices, default: all)"), OPT_WITHOUT_ARG("--disable-gpu|-G", opt_set_bool, &opt_nogpu, #ifdef HAVE_OPENCL "Disable GPU mining even if suitable devices exist" #else opt_hidden #endif ), #if defined(WANT_CPUMINE) && (defined(HAVE_OPENCL) || defined(USE_FPGA)) OPT_WITHOUT_ARG("--enable-cpu|-C", opt_set_bool, &opt_usecpu, "Enable CPU mining with other mining (default: no CPU mining if other devices exist)"), #endif OPT_WITH_ARG("--expiry|-E", set_int_0_to_9999, opt_show_intval, &opt_expiry, "Upper bound on how many seconds after getting work we consider a share from it stale"), OPT_WITHOUT_ARG("--failover-only", opt_set_bool, &opt_fail_only, "Don't leak work to backup pools when primary pool is lagging"), OPT_WITHOUT_ARG("--fix-protocol", opt_set_bool, &opt_fix_protocol, "Do not redirect to a different getwork protocol (eg. stratum)"), #ifdef HAVE_OPENCL OPT_WITH_ARG("--gpu-dyninterval", set_int_1_to_65535, opt_show_intval, &opt_dynamic_interval, "Set the refresh interval in ms for GPUs using dynamic intensity"), OPT_WITH_ARG("--gpu-platform", set_int_0_to_9999, opt_show_intval, &opt_platform_id, "Select OpenCL platform ID to use for GPU mining"), OPT_WITH_ARG("--gpu-threads|-g", set_int_1_to_10, opt_show_intval, &opt_g_threads, "Number of threads per GPU (1 - 10)"), #ifdef HAVE_ADL OPT_WITH_ARG("--gpu-engine", set_gpu_engine, NULL, NULL, "GPU engine (over)clock range in Mhz - one value, range and/or comma separated list (e.g. 850-900,900,750-850)"), OPT_WITH_ARG("--gpu-fan", set_gpu_fan, NULL, NULL, "GPU fan percentage range - one value, range and/or comma separated list (e.g. 0-85,85,65)"), OPT_WITH_ARG("--gpu-map", set_gpu_map, NULL, NULL, "Map OpenCL to ADL device order manually, paired CSV (e.g. 1:0,2:1 maps OpenCL 1 to ADL 0, 2 to 1)"), OPT_WITH_ARG("--gpu-memclock", set_gpu_memclock, NULL, NULL, "Set the GPU memory (over)clock in Mhz - one value for all or separate by commas for per card"), OPT_WITH_ARG("--gpu-memdiff", set_gpu_memdiff, NULL, NULL, "Set a fixed difference in clock speed between the GPU and memory in auto-gpu mode"), OPT_WITH_ARG("--gpu-powertune", set_gpu_powertune, NULL, NULL, "Set the GPU powertune percentage - one value for all or separate by commas for per card"), OPT_WITHOUT_ARG("--gpu-reorder", opt_set_bool, &opt_reorder, "Attempt to reorder GPU devices according to PCI Bus ID"), OPT_WITH_ARG("--gpu-vddc", set_gpu_vddc, NULL, NULL, "Set the GPU voltage in Volts - one value for all or separate by commas for per card"), #endif #ifdef USE_SCRYPT OPT_WITH_ARG("--lookup-gap", set_lookup_gap, NULL, NULL, "Set GPU lookup gap for scrypt mining, comma separated"), #endif OPT_WITH_ARG("--intensity|-I", set_intensity, NULL, NULL, "Intensity of GPU scanning (d or " _MIN_INTENSITY_STR " -> " _MAX_INTENSITY_STR ", default: d to maintain desktop interactivity)"), #endif #if defined(HAVE_OPENCL) || defined(HAVE_MODMINER) OPT_WITH_ARG("--kernel-path|-K", opt_set_charp, opt_show_charp, &opt_kernel_path, "Specify a path to where bitstream and kernel files are"), #endif #ifdef HAVE_OPENCL OPT_WITH_ARG("--kernel|-k", set_kernel, NULL, NULL, "Override sha256 kernel to use (diablo, poclbm, phatk or diakgcn) - one value or comma separated"), #endif #ifdef USE_ICARUS OPT_WITH_ARG("--icarus-options", set_icarus_options, NULL, NULL, opt_hidden), OPT_WITH_ARG("--icarus-timing", set_icarus_timing, NULL, NULL, opt_hidden), #endif OPT_WITHOUT_ARG("--load-balance", set_loadbalance, &pool_strategy, "Change multipool strategy from failover to efficiency based balance"), OPT_WITH_ARG("--log|-l", set_int_0_to_9999, opt_show_intval, &opt_log_interval, "Interval in seconds between log output"), #if defined(unix) OPT_WITH_ARG("--monitor|-m", opt_set_charp, NULL, &opt_stderr_cmd, "Use custom pipe cmd for output messages"), #endif // defined(unix) OPT_WITHOUT_ARG("--net-delay", opt_set_bool, &opt_delaynet, "Impose small delays in networking to not overload slow routers"), OPT_WITHOUT_ARG("--no-adl", opt_set_bool, &opt_noadl, #ifdef HAVE_ADL "Disable the ATI display library used for monitoring and setting GPU parameters" #else opt_hidden #endif ), OPT_WITHOUT_ARG("--no-pool-disable", opt_set_invbool, &opt_disable_pool, "Do not automatically disable pools that continually reject shares"), OPT_WITHOUT_ARG("--no-restart", opt_set_invbool, &opt_restart, #ifdef HAVE_OPENCL "Do not attempt to restart GPUs that hang" #else opt_hidden #endif ), OPT_WITHOUT_ARG("--no-submit-stale", opt_set_invbool, &opt_submit_stale, "Don't submit shares if they are detected as stale"), OPT_WITH_ARG("--pass|-p", set_pass, NULL, NULL, "Password for bitcoin JSON-RPC server"), OPT_WITHOUT_ARG("--per-device-stats", opt_set_bool, &want_per_device_stats, "Force verbose mode and output per-device statistics"), OPT_WITHOUT_ARG("--protocol-dump|-P", opt_set_bool, &opt_protocol, "Verbose dump of protocol-level activities"), OPT_WITH_ARG("--queue|-Q", set_int_0_to_9999, opt_show_intval, &opt_queue, "Minimum number of work items to have queued (0+)"), OPT_WITHOUT_ARG("--quiet|-q", opt_set_bool, &opt_quiet, "Disable logging output, display status and errors"), OPT_WITHOUT_ARG("--real-quiet", opt_set_bool, &opt_realquiet, "Disable all output"), OPT_WITHOUT_ARG("--remove-disabled", opt_set_bool, &opt_removedisabled, "Remove disabled devices entirely, as if they didn't exist"), OPT_WITH_ARG("--retries", set_null, NULL, NULL, opt_hidden), OPT_WITH_ARG("--retry-pause", set_null, NULL, NULL, opt_hidden), OPT_WITH_ARG("--rotate", set_rotate, opt_show_intval, &opt_rotate_period, "Change multipool strategy from failover to regularly rotate at N minutes"), OPT_WITHOUT_ARG("--round-robin", set_rr, &pool_strategy, "Change multipool strategy from failover to round robin on failure"), #ifdef USE_FPGA_SERIAL OPT_WITH_ARG("--scan-serial|-S", add_serial, NULL, NULL, "Serial port to probe for FPGA Mining device"), #endif OPT_WITH_ARG("--scan-time|-s", set_int_0_to_9999, opt_show_intval, &opt_scantime, "Upper bound on time spent scanning current work, in seconds"), OPT_WITH_ARG("--sched-start", set_schedtime, NULL, &schedstart, "Set a time of day in HH:MM to start mining (a once off without a stop time)"), OPT_WITH_ARG("--sched-stop", set_schedtime, NULL, &schedstop, "Set a time of day in HH:MM to stop mining (will quit without a start time)"), #ifdef USE_SCRYPT OPT_WITHOUT_ARG("--scrypt", opt_set_bool, &opt_scrypt, "Use the scrypt algorithm for mining (litecoin only)"), OPT_WITH_ARG("--shaders", set_shaders, NULL, NULL, "GPU shaders per card for tuning scrypt, comma separated"), #endif OPT_WITH_ARG("--sharelog", set_sharelog, NULL, NULL, "Append share log to file"), OPT_WITH_ARG("--shares", opt_set_intval, NULL, &opt_shares, "Quit after mining N shares (default: unlimited)"), OPT_WITH_ARG("--socks-proxy", opt_set_charp, NULL, &opt_socks_proxy, "Set socks4 proxy (host:port)"), #ifdef HAVE_SYSLOG_H OPT_WITHOUT_ARG("--syslog", opt_set_bool, &use_syslog, "Use system log for output messages (default: standard error)"), #endif #if defined(HAVE_ADL) || defined(USE_BITFORCE) || defined(USE_MODMINER) OPT_WITH_ARG("--temp-cutoff", set_temp_cutoff, opt_show_intval, &opt_cutofftemp, "Temperature where a device will be automatically disabled, one value or comma separated list"), #endif #ifdef HAVE_ADL OPT_WITH_ARG("--temp-hysteresis", set_int_1_to_10, opt_show_intval, &opt_hysteresis, "Set how much the temperature can fluctuate outside limits when automanaging speeds"), OPT_WITH_ARG("--temp-overheat", set_temp_overheat, opt_show_intval, &opt_overheattemp, "Overheat temperature when automatically managing fan and GPU speeds, one value or comma separated list"), OPT_WITH_ARG("--temp-target", set_temp_target, opt_show_intval, &opt_targettemp, "Target temperature when automatically managing fan and GPU speeds, one value or comma separated list"), #endif OPT_WITHOUT_ARG("--text-only|-T", opt_set_invbool, &use_curses, #ifdef HAVE_CURSES "Disable ncurses formatted screen output" #else opt_hidden #endif ), #ifdef USE_SCRYPT OPT_WITH_ARG("--thread-concurrency", set_thread_concurrency, NULL, NULL, "Set GPU thread concurrency for scrypt mining, comma separated"), #endif OPT_WITH_ARG("--url|-o", set_url, NULL, NULL, "URL for bitcoin JSON-RPC server"), OPT_WITH_ARG("--user|-u", set_user, NULL, NULL, "Username for bitcoin JSON-RPC server"), #ifdef HAVE_LIBUSB OPT_WITH_ARG("--usb-dump", set_int_0_to_10, opt_show_intval, &opt_usbdump, opt_hidden), #endif #ifdef HAVE_OPENCL OPT_WITH_ARG("--vectors|-v", set_vector, NULL, NULL, "Override detected optimal vector (1, 2 or 4) - one value or comma separated list"), #endif OPT_WITHOUT_ARG("--verbose", opt_set_bool, &opt_log_output, "Log verbose output to stderr as well as status output"), #ifdef HAVE_OPENCL OPT_WITH_ARG("--worksize|-w", set_worksize, NULL, NULL, "Override detected optimal worksize - one value or comma separated list"), #endif OPT_WITH_ARG("--userpass|-O", set_userpass, NULL, NULL, "Username:Password pair for bitcoin JSON-RPC server"), OPT_WITHOUT_ARG("--worktime", opt_set_bool, &opt_worktime, "Display extra work time debug information"), OPT_WITH_ARG("--pools", opt_set_bool, NULL, NULL, opt_hidden), OPT_ENDTABLE }; static char *load_config(const char *arg, void __maybe_unused *unused); static int fileconf_load; static char *parse_config(json_t *config, bool fileconf) { static char err_buf[200]; struct opt_table *opt; json_t *val; if (fileconf && !fileconf_load) fileconf_load = 1; for (opt = opt_config_table; opt->type != OPT_END; opt++) { char *p, *name; /* We don't handle subtables. */ assert(!(opt->type & OPT_SUBTABLE)); /* Pull apart the option name(s). */ name = strdup(opt->names); for (p = strtok(name, "|"); p; p = strtok(NULL, "|")) { char *err = NULL; /* Ignore short options. */ if (p[1] != '-') continue; val = json_object_get(config, p+2); if (!val) continue; if ((opt->type & OPT_HASARG) && json_is_string(val)) { err = opt->cb_arg(json_string_value(val), opt->u.arg); } else if ((opt->type & OPT_HASARG) && json_is_array(val)) { int n, size = json_array_size(val); for (n = 0; n < size && !err; n++) { if (json_is_string(json_array_get(val, n))) err = opt->cb_arg(json_string_value(json_array_get(val, n)), opt->u.arg); else if (json_is_object(json_array_get(val, n))) err = parse_config(json_array_get(val, n), false); } } else if ((opt->type & OPT_NOARG) && json_is_true(val)) err = opt->cb(opt->u.arg); else err = "Invalid value"; if (err) { /* Allow invalid values to be in configuration * file, just skipping over them provided the * JSON is still valid after that. */ if (fileconf) { applog(LOG_ERR, "Invalid config option %s: %s", p, err); fileconf_load = -1; } else { sprintf(err_buf, "Parsing JSON option %s: %s", p, err); return err_buf; } } } free(name); } val = json_object_get(config, JSON_INCLUDE_CONF); if (val && json_is_string(val)) return load_config(json_string_value(val), NULL); return NULL; } char *cnfbuf = NULL; static char *load_config(const char *arg, void __maybe_unused *unused) { json_error_t err; json_t *config; char *json_error; if (!cnfbuf) cnfbuf = strdup(arg); if (++include_count > JSON_MAX_DEPTH) return JSON_MAX_DEPTH_ERR; #if JANSSON_MAJOR_VERSION > 1 config = json_load_file(arg, 0, &err); #else config = json_load_file(arg, &err); #endif if (!json_is_object(config)) { json_error = malloc(JSON_LOAD_ERROR_LEN + strlen(arg) + strlen(err.text)); if (!json_error) quit(1, "Malloc failure in json error"); sprintf(json_error, JSON_LOAD_ERROR, arg, err.text); return json_error; } config_loaded = true; /* Parse the config now, so we can override it. That can keep pointers * so don't free config object. */ return parse_config(config, true); } static char *set_default_config(const char *arg) { opt_set_charp(arg, &default_config); return NULL; } void default_save_file(char *filename); static void load_default_config(void) { cnfbuf = malloc(PATH_MAX); default_save_file(cnfbuf); if (!access(cnfbuf, R_OK)) load_config(cnfbuf, NULL); else { free(cnfbuf); cnfbuf = NULL; } } extern const char *opt_argv0; static char *opt_verusage_and_exit(const char *extra) { printf("%s\nBuilt with " #ifdef HAVE_OPENCL "GPU " #endif #ifdef WANT_CPUMINE "CPU " #endif #ifdef USE_BITFORCE "bitforce " #endif #ifdef USE_ICARUS "icarus " #endif #ifdef USE_MODMINER "modminer " #endif #ifdef USE_ZTEX "ztex " #endif #ifdef USE_SCRYPT "scrypt " #endif "mining support.\n" , packagename); printf("%s", opt_usage(opt_argv0, extra)); fflush(stdout); exit(0); } /* These options are available from commandline only */ static struct opt_table opt_cmdline_table[] = { OPT_WITH_ARG("--config|-c", load_config, NULL, NULL, "Load a JSON-format configuration file\n" "See example.conf for an example configuration."), OPT_WITH_ARG("--default-config", set_default_config, NULL, NULL, "Specify the filename of the default config file\n" "Loaded at start and used when saving without a name."), OPT_WITHOUT_ARG("--help|-h", opt_verusage_and_exit, NULL, "Print this message"), #ifdef HAVE_OPENCL OPT_WITHOUT_ARG("--ndevs|-n", print_ndevs_and_exit, &nDevs, "Display number of detected GPUs, OpenCL platform information, and exit"), #endif OPT_WITHOUT_ARG("--version|-V", opt_version_and_exit, packagename, "Display version and exit"), OPT_ENDTABLE }; static bool jobj_binary(const json_t *obj, const char *key, void *buf, size_t buflen, bool required) { const char *hexstr; json_t *tmp; tmp = json_object_get(obj, key); if (unlikely(!tmp)) { if (unlikely(required)) applog(LOG_ERR, "JSON key '%s' not found", key); return false; } hexstr = json_string_value(tmp); if (unlikely(!hexstr)) { applog(LOG_ERR, "JSON key '%s' is not a string", key); return false; } if (!hex2bin(buf, hexstr, buflen)) return false; return true; } static void calc_midstate(struct work *work) { union { unsigned char c[64]; uint32_t i[16]; } data; int swapcounter; for (swapcounter = 0; swapcounter < 16; swapcounter++) data.i[swapcounter] = swab32(((uint32_t*) (work->data))[swapcounter]); sha2_context ctx; sha2_starts( &ctx, 0 ); sha2_update( &ctx, data.c, 64 ); memcpy(work->midstate, ctx.state, sizeof(work->midstate)); #if defined(__BIG_ENDIAN__) || defined(MIPSEB) int i; for (i = 0; i < 8; i++) (((uint32_t*) (work->midstate))[i]) = swab32(((uint32_t*) (work->midstate))[i]); #endif } static struct work *make_work(void) { struct work *work = calloc(1, sizeof(struct work)); if (unlikely(!work)) quit(1, "Failed to calloc work in make_work"); mutex_lock(&control_lock); work->id = total_work++; mutex_unlock(&control_lock); return work; } /* This is the central place all work that is about to be retired should be * cleaned to remove any dynamically allocated arrays within the struct */ void clean_work(struct work *work) { free(work->job_id); free(work->nonce2); free(work->ntime); free(work->gbt_coinbase); work->job_id = NULL; work->nonce2 = NULL; work->ntime = NULL; work->gbt_coinbase = NULL; memset(work, 0, sizeof(struct work)); } /* All dynamically allocated work structs should be freed here to not leak any * ram from arrays allocated within the work struct */ void free_work(struct work *work) { clean_work(work); free(work); } /* Generate a GBT coinbase from the existing GBT variables stored. Must be * entered under gbt_lock */ static void __build_gbt_coinbase(struct pool *pool) { int cbt_len, cal_len, orig_len; unsigned char *coinbase; uint8_t *extra_len; cbt_len = strlen(pool->coinbasetxn) / 2; pool->coinbase_len = cbt_len + 4; /* We add 4 bytes of extra data corresponding to nonce2 of stratum */ cal_len = pool->coinbase_len + 1; if (cal_len % 4) cal_len += 4 - (cal_len % 4); coinbase = calloc(cal_len, 1); hex2bin(coinbase, pool->coinbasetxn, 42); extra_len = (uint8_t *)(coinbase + 41); orig_len = *extra_len; hex2bin(coinbase + 42, pool->coinbasetxn + 84, orig_len); memcpy(coinbase + 42 + orig_len, &pool->nonce2, 4); *extra_len += 4; hex2bin(coinbase + 42 + *extra_len, pool->coinbasetxn + 84 + (orig_len * 2), cbt_len - orig_len - 42); pool->nonce2++; free(pool->gbt_coinbase); pool->gbt_coinbase = coinbase; } static void gen_hash(unsigned char *data, unsigned char *hash, int len); /* Process transactions with GBT by storing the binary value of the first * transaction, and the hashes of the remaining transactions since these * remain constant with an altered coinbase when generating work. Must be * entered under gbt_lock */ static bool __build_gbt_txns(struct pool *pool, json_t *res_val) { json_t *txn_array; bool ret = false; int i, cal_len; free(pool->txn_hashes); pool->txn_hashes = NULL; pool->gbt_txns = 0; txn_array = json_object_get(res_val, "transactions"); if (!json_is_array(txn_array)) goto out; ret = true; pool->gbt_txns = json_array_size(txn_array); if (!pool->gbt_txns) goto out; pool->txn_hashes = calloc(32 * (pool->gbt_txns + 1), 1); if (unlikely(!pool->txn_hashes)) quit(1, "Failed to calloc txn_hashes in __build_gbt_txns"); for (i = 0; i < pool->gbt_txns; i++) { json_t *txn_val = json_object_get(json_array_get(txn_array, i), "data"); const char *txn = json_string_value(txn_val); int txn_len = strlen(txn); unsigned char *txn_bin; cal_len = txn_len; if (cal_len % 4) cal_len += 4 - (cal_len % 4); txn_bin = calloc(cal_len, 1); if (unlikely(!txn_bin)) quit(1, "Failed to calloc txn_bin in __build_gbt_txns"); if (unlikely(!hex2bin(txn_bin, txn, txn_len / 2))) quit(1, "Failed to hex2bin txn_bin"); gen_hash(txn_bin, pool->txn_hashes + (32 * i), txn_len / 2); free(txn_bin); } out: return ret; } static unsigned char *__gbt_merkleroot(struct pool *pool) { unsigned char *merkle_hash; int i, txns; merkle_hash = calloc(32 * (pool->gbt_txns + 2), 1); if (unlikely(!merkle_hash)) quit(1, "Failed to calloc merkle_hash in __gbt_merkleroot"); gen_hash(pool->gbt_coinbase, merkle_hash, pool->coinbase_len); if (pool->gbt_txns) memcpy(merkle_hash + 32, pool->txn_hashes, pool->gbt_txns * 32); txns = pool->gbt_txns + 1; while (txns > 1) { if (txns % 2) { memcpy(&merkle_hash[txns * 32], &merkle_hash[(txns - 1) * 32], 32); txns++; } for (i = 0; i < txns; i += 2){ unsigned char hashout[32]; gen_hash(merkle_hash + (i * 32), hashout, 64); memcpy(merkle_hash + (i / 2 * 32), hashout, 32); } txns /= 2; } return merkle_hash; } static void calc_diff(struct work *work, int known); static bool work_decode(struct pool *pool, struct work *work, json_t *val); static void update_gbt(struct pool *pool) { int rolltime; json_t *val; CURL *curl; curl = curl_easy_init(); if (unlikely(!curl)) quit (1, "CURL initialisation failed in update_gbt"); val = json_rpc_call(curl, pool->rpc_url, pool->rpc_userpass, pool->rpc_req, true, false, &rolltime, pool, false); if (val) { struct work *work = make_work(); bool rc = work_decode(pool, work, val); total_getworks++; pool->getwork_requested++; if (rc) { applog(LOG_DEBUG, "Successfully retrieved and updated GBT from pool %u %s", pool->pool_no, pool->rpc_url); gettimeofday(&pool->tv_idle, NULL); } else { applog(LOG_DEBUG, "Successfully retrieved but FAILED to decipher GBT from pool %u %s", pool->pool_no, pool->rpc_url); } json_decref(val); free_work(work); } else { applog(LOG_DEBUG, "FAILED to update GBT from pool %u %s", pool->pool_no, pool->rpc_url); } curl_easy_cleanup(curl); } static char *workpadding = "000000800000000000000000000000000000000000000000000000000000000000000000000000000000000080020000"; static void gen_gbt_work(struct pool *pool, struct work *work) { unsigned char *merkleroot; struct timeval now; gettimeofday(&now, NULL); if (now.tv_sec - pool->tv_lastwork.tv_sec > 60) update_gbt(pool); mutex_lock(&pool->gbt_lock); __build_gbt_coinbase(pool); merkleroot = __gbt_merkleroot(pool); memcpy(work->data, &pool->gbt_version, 4); memcpy(work->data + 4, pool->previousblockhash, 32); memcpy(work->data + 4 + 32 + 32, &pool->curtime, 4); memcpy(work->data + 4 + 32 + 32 + 4, &pool->gbt_bits, 4); memcpy(work->target, pool->gbt_target, 32); work->gbt_coinbase = bin2hex(pool->gbt_coinbase, pool->coinbase_len); /* For encoding the block data on submission */ work->gbt_txns = pool->gbt_txns + 1; if (pool->gbt_workid) work->job_id = strdup(pool->gbt_workid); mutex_unlock(&pool->gbt_lock); memcpy(work->data + 4 + 32, merkleroot, 32); flip32(work->data + 4 + 32, merkleroot); free(merkleroot); memset(work->data + 4 + 32 + 32 + 4 + 4, 0, 4); /* nonce */ hex2bin(work->data + 4 + 32 + 32 + 4 + 4 + 4, workpadding, 48); if (opt_debug) { char *header = bin2hex(work->data, 128); applog(LOG_DEBUG, "Generated GBT header %s", header); applog(LOG_DEBUG, "Work coinbase %s", work->gbt_coinbase); free(header); } calc_midstate(work); local_work++; work->pool = pool; work->gbt = true; work->id = total_work++; work->longpoll = false; work->getwork_mode = GETWORK_MODE_GBT; work->work_block = work_block; calc_diff(work, 0); gettimeofday(&work->tv_staged, NULL); } static bool gbt_decode(struct pool *pool, json_t *res_val) { const char *previousblockhash; const char *target; const char *coinbasetxn; const char *longpollid; unsigned char hash_swap[32]; int expires; int version; int curtime; bool submitold; const char *bits; const char *workid; previousblockhash = json_string_value(json_object_get(res_val, "previousblockhash")); target = json_string_value(json_object_get(res_val, "target")); coinbasetxn = json_string_value(json_object_get(json_object_get(res_val, "coinbasetxn"), "data")); longpollid = json_string_value(json_object_get(res_val, "longpollid")); expires = json_integer_value(json_object_get(res_val, "expires")); version = json_integer_value(json_object_get(res_val, "version")); curtime = json_integer_value(json_object_get(res_val, "curtime")); submitold = json_is_true(json_object_get(res_val, "submitold")); bits = json_string_value(json_object_get(res_val, "bits")); workid = json_string_value(json_object_get(res_val, "workid")); if (!previousblockhash || !target || !coinbasetxn || !longpollid || !expires || !version || !curtime || !bits) { applog(LOG_ERR, "JSON failed to decode GBT"); return false; } applog(LOG_DEBUG, "previousblockhash: %s", previousblockhash); applog(LOG_DEBUG, "target: %s", target); applog(LOG_DEBUG, "coinbasetxn: %s", coinbasetxn); applog(LOG_DEBUG, "longpollid: %s", longpollid); applog(LOG_DEBUG, "expires: %d", expires); applog(LOG_DEBUG, "version: %d", version); applog(LOG_DEBUG, "curtime: %d", curtime); applog(LOG_DEBUG, "submitold: %s", submitold ? "true" : "false"); applog(LOG_DEBUG, "bits: %s", bits); if (workid) applog(LOG_DEBUG, "workid: %s", workid); mutex_lock(&pool->gbt_lock); free(pool->coinbasetxn); pool->coinbasetxn = strdup(coinbasetxn); free(pool->longpollid); pool->longpollid = strdup(longpollid); free(pool->gbt_workid); if (workid) pool->gbt_workid = strdup(workid); else pool->gbt_workid = NULL; hex2bin(hash_swap, previousblockhash, 32); swap256(pool->previousblockhash, hash_swap); hex2bin(hash_swap, target, 32); swab256(pool->gbt_target, hash_swap); pool->gbt_expires = expires; pool->gbt_version = htobe32(version); pool->curtime = htobe32(curtime); pool->submit_old = submitold; hex2bin((unsigned char *)&pool->gbt_bits, bits, 4); __build_gbt_txns(pool, res_val); mutex_unlock(&pool->gbt_lock); return true; } static bool getwork_decode(json_t *res_val, struct work *work) { if (unlikely(!jobj_binary(res_val, "data", work->data, sizeof(work->data), true))) { applog(LOG_ERR, "JSON inval data"); return false; } if (!jobj_binary(res_val, "midstate", work->midstate, sizeof(work->midstate), false)) { // Calculate it ourselves applog(LOG_DEBUG, "Calculating midstate locally"); calc_midstate(work); } if (unlikely(!jobj_binary(res_val, "target", work->target, sizeof(work->target), true))) { applog(LOG_ERR, "JSON inval target"); return false; } return true; } static bool work_decode(struct pool *pool, struct work *work, json_t *val) { json_t *res_val = json_object_get(val, "result"); bool ret = false; gettimeofday(&pool->tv_lastwork, NULL); if (!res_val || json_is_null(res_val)) { applog(LOG_ERR, "JSON Failed to decode result"); goto out; } if (pool->has_gbt) { if (unlikely(!gbt_decode(pool, res_val))) goto out; work->gbt = true; ret = true; goto out; } else if (unlikely(!getwork_decode(res_val, work))) goto out; memset(work->hash, 0, sizeof(work->hash)); gettimeofday(&work->tv_staged, NULL); ret = true; out: return ret; } int dev_from_id(int thr_id) { return thr_info[thr_id].cgpu->device_id; } /* Make the change in the recent value adjust dynamically when the difference * is large, but damp it when the values are closer together. This allows the * value to change quickly, but not fluctuate too dramatically when it has * stabilised. */ void decay_time(double *f, double fadd) { double ratio = 0; if (likely(*f > 0)) { ratio = fadd / *f; if (ratio > 1) ratio = 1 / ratio; } if (ratio > 0.63) *f = (fadd * 0.58 + *f) / 1.58; else *f = (fadd + *f * 0.58) / 1.58; } static int __total_staged(void) { return HASH_COUNT(staged_work); } static int total_staged(void) { int ret; mutex_lock(stgd_lock); ret = __total_staged(); mutex_unlock(stgd_lock); return ret; } #ifdef HAVE_CURSES WINDOW *mainwin, *statuswin, *logwin; #endif double total_secs = 1.0; static char statusline[256]; /* logstart is where the log window should start */ static int devcursor, logstart, logcursor; #ifdef HAVE_CURSES /* statusy is where the status window goes up to in cases where it won't fit at startup */ static int statusy; #endif #ifdef HAVE_OPENCL struct cgpu_info gpus[MAX_GPUDEVICES]; /* Maximum number apparently possible */ #endif struct cgpu_info *cpus; #ifdef HAVE_CURSES static inline void unlock_curses(void) { mutex_unlock(&console_lock); } static inline void lock_curses(void) { mutex_lock(&console_lock); } static bool curses_active_locked(void) { bool ret; lock_curses(); ret = curses_active; if (!ret) unlock_curses(); return ret; } #endif void tailsprintf(char *f, const char *fmt, ...) { va_list ap; va_start(ap, fmt); vsprintf(f + strlen(f), fmt, ap); va_end(ap); } /* Convert a uint64_t value into a truncated string for displaying with its * associated suitable for Mega, Giga etc. Buf array needs to be long enough */ static void suffix_string(uint64_t val, char *buf, int sigdigits) { const double dkilo = 1000.0; const uint64_t kilo = 1000ull; const uint64_t mega = 1000000ull; const uint64_t giga = 1000000000ull; const uint64_t tera = 1000000000000ull; const uint64_t peta = 1000000000000000ull; const uint64_t exa = 1000000000000000000ull; char suffix[2] = ""; bool decimal = true; double dval; if (val >= exa) { val /= peta; dval = (double)val / dkilo; sprintf(suffix, "E"); } else if (val >= peta) { val /= tera; dval = (double)val / dkilo; sprintf(suffix, "P"); } else if (val >= tera) { val /= giga; dval = (double)val / dkilo; sprintf(suffix, "T"); } else if (val >= giga) { val /= mega; dval = (double)val / dkilo; sprintf(suffix, "G"); } else if (val >= mega) { val /= kilo; dval = (double)val / dkilo; sprintf(suffix, "M"); } else if (val >= kilo) { dval = (double)val / dkilo; sprintf(suffix, "K"); } else { dval = val; decimal = false; } if (!sigdigits) { if (decimal) sprintf(buf, "%.3g%s", dval, suffix); else sprintf(buf, "%d%s", (unsigned int)dval, suffix); } else { /* Always show sigdigits + 1, padded on right with zeroes * followed by suffix */ int ndigits = sigdigits - 1 - (dval > 0.0 ? floor(log10(dval)) : 0); sprintf(buf, "%*.*f%s", sigdigits + 1, ndigits, dval, suffix); } } static void get_statline(char *buf, struct cgpu_info *cgpu) { char displayed_hashes[16], displayed_rolling[16]; uint64_t dh64, dr64; dh64 = (double)cgpu->total_mhashes / total_secs * 1000000ull; dr64 = (double)cgpu->rolling * 1000000ull; suffix_string(dh64, displayed_hashes, 4); suffix_string(dr64, displayed_rolling, 4); sprintf(buf, "%s%d ", cgpu->api->name, cgpu->device_id); if (cgpu->api->get_statline_before) cgpu->api->get_statline_before(buf, cgpu); else tailsprintf(buf, " | "); tailsprintf(buf, "(%ds):%s (avg):%sh/s | A:%d R:%d HW:%d U:%.1f/m", opt_log_interval, displayed_rolling, displayed_hashes, cgpu->accepted, cgpu->rejected, cgpu->hw_errors, cgpu->utility); if (cgpu->api->get_statline) cgpu->api->get_statline(buf, cgpu); } static void text_print_status(int thr_id) { struct cgpu_info *cgpu = thr_info[thr_id].cgpu; char logline[256]; if (cgpu) { get_statline(logline, cgpu); printf("%s\n", logline); } } #ifdef HAVE_CURSES /* Must be called with curses mutex lock held and curses_active */ static void curses_print_status(void) { struct pool *pool = current_pool(); wattron(statuswin, A_BOLD); mvwprintw(statuswin, 0, 0, " " PACKAGE " version " VERSION " - Started: %s", datestamp); #ifdef WANT_CPUMINE if (opt_n_threads) wprintw(statuswin, " CPU Algo: %s", algo_names[opt_algo]); #endif wattroff(statuswin, A_BOLD); mvwhline(statuswin, 1, 0, '-', 80); mvwprintw(statuswin, 2, 0, " %s", statusline); wclrtoeol(statuswin); if (opt_scrypt) { mvwprintw(statuswin, 3, 0, " ST: %d SS: %d DW: %d NB: %d LW: %d GF: %d RF: %d", total_staged(), total_stale, total_discarded, new_blocks, local_work, total_go, total_ro); } else { mvwprintw(statuswin, 3, 0, " ST: %d SS: %d DW: %d NB: %d LW: %d GF: %d RF: %d WU: %.1f", total_staged(), total_stale, total_discarded, new_blocks, local_work, total_go, total_ro, total_diff1 / total_secs * 60); } wclrtoeol(statuswin); if ((pool_strategy == POOL_LOADBALANCE || pool_strategy == POOL_BALANCE) && total_pools > 1) { mvwprintw(statuswin, 4, 0, " Connected to multiple pools with%s LP", have_longpoll ? "": "out"); } else if (pool->has_stratum) { mvwprintw(statuswin, 4, 0, " Connected to %s with stratum as user %s", pool->sockaddr_url, pool->rpc_user); } else { mvwprintw(statuswin, 4, 0, " Connected to %s with%s %s as user %s", pool->sockaddr_url, have_longpoll ? "": "out", pool->has_gbt ? "GBT" : "LP", pool->rpc_user); } wclrtoeol(statuswin); mvwprintw(statuswin, 5, 0, " Block: %s... Started: %s Best share: %s ", current_hash, blocktime, best_share); mvwhline(statuswin, 6, 0, '-', 80); mvwhline(statuswin, statusy - 1, 0, '-', 80); mvwprintw(statuswin, devcursor - 1, 1, "[P]ool management %s[S]ettings [D]isplay options [Q]uit", have_opencl ? "[G]PU management " : ""); } static void adj_width(int var, int *length) { if ((int)(log10(var) + 1) > *length) (*length)++; } static int dev_width; static void curses_print_devstatus(int thr_id) { static int awidth = 1, rwidth = 1, hwwidth = 1, uwidth = 1; struct cgpu_info *cgpu = thr_info[thr_id].cgpu; char logline[256]; char displayed_hashes[16], displayed_rolling[16]; uint64_t dh64, dr64; if (devcursor + cgpu->cgminer_id > LINES - 2 || opt_compact) return; cgpu->utility = cgpu->accepted / total_secs * 60; wmove(statuswin,devcursor + cgpu->cgminer_id, 0); wprintw(statuswin, " %s %*d: ", cgpu->api->name, dev_width, cgpu->device_id); if (cgpu->api->get_statline_before) { logline[0] = '\0'; cgpu->api->get_statline_before(logline, cgpu); wprintw(statuswin, "%s", logline); } else wprintw(statuswin, " | "); dh64 = (double)cgpu->total_mhashes / total_secs * 1000000ull; dr64 = (double)cgpu->rolling * 1000000ull; suffix_string(dh64, displayed_hashes, 4); suffix_string(dr64, displayed_rolling, 4); if (cgpu->status == LIFE_DEAD) wprintw(statuswin, "DEAD "); else if (cgpu->status == LIFE_SICK) wprintw(statuswin, "SICK "); else if (cgpu->deven == DEV_DISABLED) wprintw(statuswin, "OFF "); else if (cgpu->deven == DEV_RECOVER) wprintw(statuswin, "REST "); else wprintw(statuswin, "%6s", displayed_rolling); adj_width(cgpu->accepted, &awidth); adj_width(cgpu->rejected, &rwidth); adj_width(cgpu->hw_errors, &hwwidth); adj_width(cgpu->utility, &uwidth); wprintw(statuswin, "/%6sh/s | A:%*d R:%*d HW:%*d U:%*.2f/m", displayed_hashes, awidth, cgpu->accepted, rwidth, cgpu->rejected, hwwidth, cgpu->hw_errors, uwidth + 3, cgpu->utility); if (cgpu->api->get_statline) { logline[0] = '\0'; cgpu->api->get_statline(logline, cgpu); wprintw(statuswin, "%s", logline); } wclrtoeol(statuswin); } #endif static void print_status(int thr_id) { if (!curses_active) text_print_status(thr_id); } #ifdef HAVE_CURSES /* Check for window resize. Called with curses mutex locked */ static inline void change_logwinsize(void) { int x, y, logx, logy; getmaxyx(mainwin, y, x); if (x < 80 || y < 25) return; if (y > statusy + 2 && statusy < logstart) { if (y - 2 < logstart) statusy = y - 2; else statusy = logstart; logcursor = statusy + 1; mvwin(logwin, logcursor, 0); wresize(statuswin, statusy, x); } y -= logcursor; getmaxyx(logwin, logy, logx); /* Detect screen size change */ if (x != logx || y != logy) wresize(logwin, y, x); } static void check_winsizes(void) { if (!use_curses) return; if (curses_active_locked()) { int y, x; erase(); x = getmaxx(statuswin); if (logstart > LINES - 2) statusy = LINES - 2; else statusy = logstart; logcursor = statusy + 1; wresize(statuswin, statusy, x); getmaxyx(mainwin, y, x); y -= logcursor; wresize(logwin, y, x); mvwin(logwin, logcursor, 0); unlock_curses(); } } static void switch_compact(void) { if (opt_compact) { logstart = devcursor + 1; logcursor = logstart + 1; } else { logstart = devcursor + total_devices + 1; logcursor = logstart + 1; } check_winsizes(); } /* For mandatory printing when mutex is already locked */ void wlog(const char *f, ...) { va_list ap; va_start(ap, f); vw_printw(logwin, f, ap); va_end(ap); } /* Mandatory printing */ void wlogprint(const char *f, ...) { va_list ap; if (curses_active_locked()) { va_start(ap, f); vw_printw(logwin, f, ap); va_end(ap); unlock_curses(); } } #endif #ifdef HAVE_CURSES bool log_curses_only(int prio, const char *f, va_list ap) { bool high_prio; high_prio = (prio == LOG_WARNING || prio == LOG_ERR); if (curses_active_locked()) { if (!opt_loginput || high_prio) { vw_printw(logwin, f, ap); if (high_prio) { touchwin(logwin); wrefresh(logwin); } } unlock_curses(); return true; } return false; } void clear_logwin(void) { if (curses_active_locked()) { erase(); wclear(logwin); unlock_curses(); } } #endif /* regenerate the full work->hash value and also return true if it's a block */ bool regeneratehash(const struct work *work) { uint32_t *data32 = (uint32_t *)(work->data); unsigned char swap[128]; uint32_t *swap32 = (uint32_t *)swap; unsigned char hash1[32]; uint32_t *hash32 = (uint32_t *)(work->hash); uint32_t difficulty = 0; uint32_t diffbytes = 0; uint32_t diffvalue = 0; uint32_t diffcmp[8]; int diffshift = 0; int i; for (i = 0; i < 80 / 4; i++) swap32[i] = swab32(data32[i]); sha2(swap, 80, hash1, false); sha2(hash1, 32, (unsigned char *)(work->hash), false); difficulty = swab32(*((uint32_t *)(work->data + 72))); diffbytes = ((difficulty >> 24) & 0xff) - 3; diffvalue = difficulty & 0x00ffffff; diffshift = (diffbytes % 4) * 8; if (diffshift == 0) { diffshift = 32; diffbytes--; } memset(diffcmp, 0, 32); diffcmp[(diffbytes >> 2) + 1] = diffvalue >> (32 - diffshift); diffcmp[diffbytes >> 2] = diffvalue << diffshift; for (i = 7; i >= 0; i--) { if (hash32[i] > diffcmp[i]) return false; if (hash32[i] < diffcmp[i]) return true; } // https://en.bitcoin.it/wiki/Block says: "numerically below" // https://en.bitcoin.it/wiki/Target says: "lower than or equal to" // code in bitcoind 0.3.24 main.cpp CheckWork() says: if (hash > hashTarget) return false; if (hash32[0] == diffcmp[0]) return true; else return false; } static void enable_pool(struct pool *pool) { if (pool->enabled != POOL_ENABLED) { enabled_pools++; pool->enabled = POOL_ENABLED; } } static void disable_pool(struct pool *pool) { if (pool->enabled == POOL_ENABLED) enabled_pools--; pool->enabled = POOL_DISABLED; } static void reject_pool(struct pool *pool) { if (pool->enabled == POOL_ENABLED) enabled_pools--; pool->enabled = POOL_REJECTING; } /* Theoretically threads could race when modifying accepted and * rejected values but the chance of two submits completing at the * same time is zero so there is no point adding extra locking */ static void share_result(json_t *val, json_t *res, json_t *err, const struct work *work, char *hashshow, bool resubmit, char *worktime) { struct pool *pool = work->pool; struct cgpu_info *cgpu = thr_info[work->thr_id].cgpu; if (json_is_true(res) || (work->gbt && json_is_null(res))) { mutex_lock(&stats_lock); cgpu->accepted++; total_accepted++; pool->accepted++; cgpu->diff_accepted += work->work_difficulty; total_diff_accepted += work->work_difficulty; pool->diff_accepted += work->work_difficulty; mutex_unlock(&stats_lock); pool->seq_rejects = 0; cgpu->last_share_pool = pool->pool_no; cgpu->last_share_pool_time = time(NULL); cgpu->last_share_diff = work->work_difficulty; pool->last_share_time = cgpu->last_share_pool_time; pool->last_share_diff = work->work_difficulty; applog(LOG_DEBUG, "PROOF OF WORK RESULT: true (yay!!!)"); if (!QUIET) { if (total_pools > 1) applog(LOG_NOTICE, "Accepted %s %s %d pool %d %s%s", hashshow, cgpu->api->name, cgpu->device_id, work->pool->pool_no, resubmit ? "(resubmit)" : "", worktime); else applog(LOG_NOTICE, "Accepted %s %s %d %s%s", hashshow, cgpu->api->name, cgpu->device_id, resubmit ? "(resubmit)" : "", worktime); } sharelog("accept", work); if (opt_shares && total_accepted >= opt_shares) { applog(LOG_WARNING, "Successfully mined %d accepted shares as requested and exiting.", opt_shares); kill_work(); return; } /* Detect if a pool that has been temporarily disabled for * continually rejecting shares has started accepting shares. * This will only happen with the work returned from a * longpoll */ if (unlikely(pool->enabled == POOL_REJECTING)) { applog(LOG_WARNING, "Rejecting pool %d now accepting shares, re-enabling!", pool->pool_no); enable_pool(pool); switch_pools(NULL); } } else { mutex_lock(&stats_lock); cgpu->rejected++; total_rejected++; pool->rejected++; cgpu->diff_rejected += work->work_difficulty; total_diff_rejected += work->work_difficulty; pool->diff_rejected += work->work_difficulty; pool->seq_rejects++; mutex_unlock(&stats_lock); applog(LOG_DEBUG, "PROOF OF WORK RESULT: false (booooo)"); if (!QUIET) { char where[20]; char disposition[36] = "reject"; char reason[32]; strcpy(reason, ""); if (total_pools > 1) sprintf(where, "pool %d", work->pool->pool_no); else strcpy(where, ""); if (!work->gbt) res = json_object_get(val, "reject-reason"); if (res) { const char *reasontmp = json_string_value(res); size_t reasonLen = strlen(reasontmp); if (reasonLen > 28) reasonLen = 28; reason[0] = ' '; reason[1] = '('; memcpy(2 + reason, reasontmp, reasonLen); reason[reasonLen + 2] = ')'; reason[reasonLen + 3] = '\0'; memcpy(disposition + 7, reasontmp, reasonLen); disposition[6] = ':'; disposition[reasonLen + 7] = '\0'; } else if (work->stratum && err && json_is_array(err)) { json_t *reason_val = json_array_get(err, 1); char *reason_str; if (reason_val && json_is_string(reason_val)) { reason_str = (char *)json_string_value(reason_val); snprintf(reason, 31, " (%s)", reason_str); } } applog(LOG_NOTICE, "Rejected %s %s %d %s%s %s%s", hashshow, cgpu->api->name, cgpu->device_id, where, reason, resubmit ? "(resubmit)" : "", worktime); sharelog(disposition, work); } /* Once we have more than a nominal amount of sequential rejects, * at least 10 and more than 3 mins at the current utility, * disable the pool because some pool error is likely to have * ensued. Do not do this if we know the share just happened to * be stale due to networking delays. */ if (pool->seq_rejects > 10 && !work->stale && opt_disable_pool && enabled_pools > 1) { double utility = total_accepted / total_secs * 60; if (pool->seq_rejects > utility * 3) { applog(LOG_WARNING, "Pool %d rejected %d sequential shares, disabling!", pool->pool_no, pool->seq_rejects); reject_pool(pool); if (pool == current_pool()) switch_pools(NULL); pool->seq_rejects = 0; } } } } static const uint64_t diffone = 0xFFFF000000000000ull; static uint64_t share_diff(const struct work *work) { uint64_t *data64, d64; char rhash[32]; uint64_t ret; swab256(rhash, work->hash); data64 = (uint64_t *)(rhash + 4); d64 = be64toh(*data64); if (unlikely(!d64)) d64 = 1; ret = diffone / d64; if (ret > best_diff) { best_diff = ret; suffix_string(best_diff, best_share, 0); } return ret; } static uint64_t scrypt_diff(const struct work *work) { const uint64_t scrypt_diffone = 0x0000ffff00000000ul; uint64_t d64 = work->outputhash, ret; if (unlikely(!d64)) d64 = 1; ret = scrypt_diffone / d64; if (ret > best_diff) { best_diff = ret; suffix_string(best_diff, best_share, 0); } return ret; } static bool submit_upstream_work(struct work *work, CURL *curl, bool resubmit) { char *hexstr = NULL; json_t *val, *res, *err; char *s; bool rc = false; int thr_id = work->thr_id; struct cgpu_info *cgpu = thr_info[thr_id].cgpu; struct pool *pool = work->pool; int rolltime; uint32_t *hash32; struct timeval tv_submit, tv_submit_reply; char hashshow[64 + 4] = ""; char worktime[200] = ""; #ifdef __BIG_ENDIAN__ int swapcounter = 0; for (swapcounter = 0; swapcounter < 32; swapcounter++) (((uint32_t*) (work->data))[swapcounter]) = swab32(((uint32_t*) (work->data))[swapcounter]); #endif /* build hex string */ hexstr = bin2hex(work->data, sizeof(work->data)); /* build JSON-RPC request */ if (work->gbt) { char *gbt_block, *varint; unsigned char data[80]; flip80(data, work->data); gbt_block = bin2hex(data, 80); if (work->gbt_txns < 0xfd) { uint8_t val = work->gbt_txns; varint = bin2hex((const unsigned char *)&val, 1); } else if (work->gbt_txns <= 0xffff) { uint16_t val = htole16(work->gbt_txns); gbt_block = realloc_strcat(gbt_block, "fd"); varint = bin2hex((const unsigned char *)&val, 2); } else { uint32_t val = htole32(work->gbt_txns); gbt_block = realloc_strcat(gbt_block, "fe"); varint = bin2hex((const unsigned char *)&val, 4); } gbt_block = realloc_strcat(gbt_block, varint); free(varint); gbt_block = realloc_strcat(gbt_block, work->gbt_coinbase); s = strdup("{\"id\": 0, \"method\": \"submitblock\", \"params\": [\""); s = realloc_strcat(s, gbt_block); if (work->job_id) { s = realloc_strcat(s, "\", {\"workid\": \""); s = realloc_strcat(s, work->job_id); s = realloc_strcat(s, "\"}]}"); } else s = realloc_strcat(s, "\", {}]}"); free(gbt_block); } else { s = strdup("{\"method\": \"getwork\", \"params\": [ \""); s = realloc_strcat(s, hexstr); s = realloc_strcat(s, "\" ], \"id\":1}"); } applog(LOG_DEBUG, "DBG: sending %s submit RPC call: %s", pool->rpc_url, s); s = realloc_strcat(s, "\n"); gettimeofday(&tv_submit, NULL); /* issue JSON-RPC request */ val = json_rpc_call(curl, pool->rpc_url, pool->rpc_userpass, s, false, false, &rolltime, pool, true); gettimeofday(&tv_submit_reply, NULL); free(s); if (unlikely(!val)) { applog(LOG_INFO, "submit_upstream_work json_rpc_call failed"); if (!pool_tset(pool, &pool->submit_fail)) { total_ro++; pool->remotefail_occasions++; applog(LOG_WARNING, "Pool %d communication failure, caching submissions", pool->pool_no); } sleep(5); goto out; } else if (pool_tclear(pool, &pool->submit_fail)) applog(LOG_WARNING, "Pool %d communication resumed, submitting work", pool->pool_no); res = json_object_get(val, "result"); err = json_object_get(val, "error"); if (!QUIET) { int intdiff = floor(work->work_difficulty); char diffdisp[16]; hash32 = (uint32_t *)(work->hash); if (opt_scrypt) { uint32_t sharediff; uint64_t outhash; scrypt_outputhash(work); sharediff = scrypt_diff(work); suffix_string(sharediff, diffdisp, 0); outhash = work->outputhash >> 16; sprintf(hashshow, "%08lx Diff %s/%d", (unsigned long)outhash, diffdisp, intdiff); } else { uint64_t sharediff = share_diff(work); suffix_string(sharediff, diffdisp, 0); sprintf(hashshow, "%08lx Diff %s/%d%s", (unsigned long)(hash32[6]), diffdisp, intdiff, work->block? " BLOCK!" : ""); } if (opt_worktime) { char workclone[20]; struct tm *tm, tm_getwork, tm_submit_reply; double getwork_time = tdiff((struct timeval *)&(work->tv_getwork_reply), (struct timeval *)&(work->tv_getwork)); double getwork_to_work = tdiff((struct timeval *)&(work->tv_work_start), (struct timeval *)&(work->tv_getwork_reply)); double work_time = tdiff((struct timeval *)&(work->tv_work_found), (struct timeval *)&(work->tv_work_start)); double work_to_submit = tdiff(&tv_submit, (struct timeval *)&(work->tv_work_found)); double submit_time = tdiff(&tv_submit_reply, &tv_submit); int diffplaces = 3; tm = localtime(&(work->tv_getwork.tv_sec)); memcpy(&tm_getwork, tm, sizeof(struct tm)); tm = localtime(&(tv_submit_reply.tv_sec)); memcpy(&tm_submit_reply, tm, sizeof(struct tm)); if (work->clone) { sprintf(workclone, "C:%1.3f", tdiff((struct timeval *)&(work->tv_cloned), (struct timeval *)&(work->tv_getwork_reply))); } else strcpy(workclone, "O"); if (work->work_difficulty < 1) diffplaces = 6; sprintf(worktime, " <-%08lx.%08lx M:%c D:%1.*f G:%02d:%02d:%02d:%1.3f %s (%1.3f) W:%1.3f (%1.3f) S:%1.3f R:%02d:%02d:%02d", (unsigned long)swab32(*(uint32_t *)&(work->data[opt_scrypt ? 32 : 28])), (unsigned long)swab32(*(uint32_t *)&(work->data[opt_scrypt ? 28 : 24])), work->getwork_mode, diffplaces, work->work_difficulty, tm_getwork.tm_hour, tm_getwork.tm_min, tm_getwork.tm_sec, getwork_time, workclone, getwork_to_work, work_time, work_to_submit, submit_time, tm_submit_reply.tm_hour, tm_submit_reply.tm_min, tm_submit_reply.tm_sec); } } share_result(val, res, err, work, hashshow, resubmit, worktime); cgpu->utility = cgpu->accepted / total_secs * 60; if (!opt_realquiet) print_status(thr_id); if (!want_per_device_stats) { char logline[256]; get_statline(logline, cgpu); applog(LOG_INFO, "%s", logline); } json_decref(val); rc = true; out: free(hexstr); return rc; } /* In balanced mode, the amount of diff1 solutions per pool is monitored as a * rolling average per 10 minutes and if pools start getting more, it biases * away from them to distribute work evenly. The share count is reset to the * rolling average every 10 minutes to not send all work to one pool after it * has been disabled/out for an extended period. */ static struct pool *select_balanced(struct pool *cp) { int i, lowest = cp->shares; struct pool *ret = cp; for (i = 0; i < total_pools; i++) { struct pool *pool = pools[i]; if (pool->idle || pool->enabled != POOL_ENABLED) continue; if (pool->shares < lowest) { lowest = pool->shares; ret = pool; } } ret->shares++; return ret; } /* Select any active pool in a rotating fashion when loadbalance is chosen */ static inline struct pool *select_pool(bool lagging) { static int rotating_pool = 0; struct pool *pool, *cp; cp = current_pool(); if (pool_strategy == POOL_BALANCE) return select_balanced(cp); if (pool_strategy != POOL_LOADBALANCE && (!lagging || opt_fail_only)) pool = cp; else pool = NULL; while (!pool) { if (++rotating_pool >= total_pools) rotating_pool = 0; pool = pools[rotating_pool]; if ((!pool->idle && pool->enabled == POOL_ENABLED) || pool == cp) break; pool = NULL; } return pool; } static double DIFFEXACTONE = 26959946667150639794667015087019630673637144422540572481103610249216.0; /* * Calculate the work share difficulty */ static void calc_diff(struct work *work, int known) { struct cgminer_pool_stats *pool_stats = &(work->pool->cgminer_pool_stats); if (opt_scrypt) { uint64_t *data64, d64; char rtarget[32]; swab256(rtarget, work->target); data64 = (uint64_t *)(rtarget + 2); d64 = be64toh(*data64); if (unlikely(!d64)) d64 = 1; work->work_difficulty = diffone / d64; } else if (!known) { double targ = 0; int i; for (i = 31; i >= 0; i--) { targ *= 256; targ += work->target[i]; } work->work_difficulty = DIFFEXACTONE / (targ ? : DIFFEXACTONE); } else work->work_difficulty = known; pool_stats->last_diff = work->work_difficulty; if (work->work_difficulty == pool_stats->min_diff) pool_stats->min_diff_count++; else if (work->work_difficulty < pool_stats->min_diff || pool_stats->min_diff == 0) { pool_stats->min_diff = work->work_difficulty; pool_stats->min_diff_count = 1; } if (work->work_difficulty == pool_stats->max_diff) pool_stats->max_diff_count++; else if (work->work_difficulty > pool_stats->max_diff) { pool_stats->max_diff = work->work_difficulty; pool_stats->max_diff_count = 1; } } static void get_benchmark_work(struct work *work) { // Use a random work block pulled from a pool static uint8_t bench_block[] = { CGMINER_BENCHMARK_BLOCK }; size_t bench_size = sizeof(*work); size_t work_size = sizeof(bench_block); size_t min_size = (work_size < bench_size ? work_size : bench_size); memset(work, 0, sizeof(*work)); memcpy(work, &bench_block, min_size); work->mandatory = true; work->pool = pools[0]; gettimeofday(&(work->tv_getwork), NULL); memcpy(&(work->tv_getwork_reply), &(work->tv_getwork), sizeof(struct timeval)); work->getwork_mode = GETWORK_MODE_BENCHMARK; calc_diff(work, 0); } static bool get_upstream_work(struct work *work, CURL *curl) { struct pool *pool = work->pool; struct cgminer_pool_stats *pool_stats = &(pool->cgminer_pool_stats); struct timeval tv_elapsed; json_t *val = NULL; bool rc = false; char *url; applog(LOG_DEBUG, "DBG: sending %s get RPC call: %s", pool->rpc_url, pool->rpc_req); url = pool->rpc_url; gettimeofday(&(work->tv_getwork), NULL); val = json_rpc_call(curl, url, pool->rpc_userpass, pool->rpc_req, false, false, &work->rolltime, pool, false); pool_stats->getwork_attempts++; if (likely(val)) { rc = work_decode(pool, work, val); if (unlikely(!rc)) applog(LOG_DEBUG, "Failed to decode work in get_upstream_work"); } else applog(LOG_DEBUG, "Failed json_rpc_call in get_upstream_work"); gettimeofday(&(work->tv_getwork_reply), NULL); timersub(&(work->tv_getwork_reply), &(work->tv_getwork), &tv_elapsed); pool_stats->getwork_wait_rolling += ((double)tv_elapsed.tv_sec + ((double)tv_elapsed.tv_usec / 1000000)) * 0.63; pool_stats->getwork_wait_rolling /= 1.63; timeradd(&tv_elapsed, &(pool_stats->getwork_wait), &(pool_stats->getwork_wait)); if (timercmp(&tv_elapsed, &(pool_stats->getwork_wait_max), >)) { pool_stats->getwork_wait_max.tv_sec = tv_elapsed.tv_sec; pool_stats->getwork_wait_max.tv_usec = tv_elapsed.tv_usec; } if (timercmp(&tv_elapsed, &(pool_stats->getwork_wait_min), <)) { pool_stats->getwork_wait_min.tv_sec = tv_elapsed.tv_sec; pool_stats->getwork_wait_min.tv_usec = tv_elapsed.tv_usec; } pool_stats->getwork_calls++; work->pool = pool; work->longpoll = false; work->getwork_mode = GETWORK_MODE_POOL; calc_diff(work, 0); total_getworks++; pool->getwork_requested++; if (likely(val)) json_decref(val); return rc; } #ifdef HAVE_CURSES static void disable_curses(void) { if (curses_active_locked()) { curses_active = false; leaveok(logwin, false); leaveok(statuswin, false); leaveok(mainwin, false); nocbreak(); echo(); delwin(logwin); delwin(statuswin); delwin(mainwin); endwin(); #ifdef WIN32 // Move the cursor to after curses output. HANDLE hout = GetStdHandle(STD_OUTPUT_HANDLE); CONSOLE_SCREEN_BUFFER_INFO csbi; COORD coord; if (GetConsoleScreenBufferInfo(hout, &csbi)) { coord.X = 0; coord.Y = csbi.dwSize.Y - 1; SetConsoleCursorPosition(hout, coord); } #endif unlock_curses(); } } #endif static void print_summary(void); static void __kill_work(void) { struct thr_info *thr; int i; if (!successful_connect) return; applog(LOG_INFO, "Received kill message"); applog(LOG_DEBUG, "Killing off watchpool thread"); /* Kill the watchpool thread */ thr = &thr_info[watchpool_thr_id]; thr_info_cancel(thr); applog(LOG_DEBUG, "Killing off watchdog thread"); /* Kill the watchdog thread */ thr = &thr_info[watchdog_thr_id]; thr_info_cancel(thr); applog(LOG_DEBUG, "Stopping mining threads"); /* Stop the mining threads*/ for (i = 0; i < mining_threads; i++) { thr = &thr_info[i]; thr_info_freeze(thr); thr->pause = true; } sleep(1); applog(LOG_DEBUG, "Killing off mining threads"); /* Kill the mining threads*/ for (i = 0; i < mining_threads; i++) { thr = &thr_info[i]; thr_info_cancel(thr); } applog(LOG_DEBUG, "Killing off stage thread"); /* Stop the others */ thr = &thr_info[stage_thr_id]; thr_info_cancel(thr); applog(LOG_DEBUG, "Killing off API thread"); thr = &thr_info[api_thr_id]; thr_info_cancel(thr); } /* This should be the common exit path */ void kill_work(void) { __kill_work(); quit(0, "Shutdown signal received."); } static #ifdef WIN32 const #endif char **initial_args; static void clean_up(void); void app_restart(void) { applog(LOG_WARNING, "Attempting to restart %s", packagename); __kill_work(); clean_up(); #if defined(unix) if (forkpid > 0) { kill(forkpid, SIGTERM); forkpid = 0; } #endif execv(initial_args[0], initial_args); applog(LOG_WARNING, "Failed to restart application"); } static void sighandler(int __maybe_unused sig) { /* Restore signal handlers so we can still quit if kill_work fails */ sigaction(SIGTERM, &termhandler, NULL); sigaction(SIGINT, &inthandler, NULL); kill_work(); } /* Called with pool_lock held. Recruit an extra curl if none are available for * this pool. */ static void recruit_curl(struct pool *pool) { struct curl_ent *ce = calloc(sizeof(struct curl_ent), 1); if (unlikely(!ce)) quit(1, "Failed to calloc in recruit_curl"); ce->curl = curl_easy_init(); if (unlikely(!ce->curl)) quit(1, "Failed to init in recruit_curl"); list_add(&ce->node, &pool->curlring); pool->curls++; applog(LOG_DEBUG, "Recruited curl %d for pool %d", pool->curls, pool->pool_no); } /* Grab an available curl if there is one. If not, then recruit extra curls * unless we are in a submit_fail situation, or we have opt_delaynet enabled * and there are already 5 curls in circulation. Limit total number to the * number of mining threads per pool as well to prevent blasting a pool during * network delays/outages. */ static struct curl_ent *pop_curl_entry(struct pool *pool) { int curl_limit = opt_delaynet ? 5 : (mining_threads + opt_queue) * 2; struct curl_ent *ce; mutex_lock(&pool->pool_lock); retry: if (!pool->curls) recruit_curl(pool); else if (list_empty(&pool->curlring)) { if (pool->curls >= curl_limit) { pthread_cond_wait(&pool->cr_cond, &pool->pool_lock); goto retry; } else recruit_curl(pool); } ce = list_entry(pool->curlring.next, struct curl_ent, node); list_del(&ce->node); mutex_unlock(&pool->pool_lock); return ce; } static void push_curl_entry(struct curl_ent *ce, struct pool *pool) { mutex_lock(&pool->pool_lock); list_add_tail(&ce->node, &pool->curlring); gettimeofday(&ce->tv, NULL); pthread_cond_broadcast(&pool->cr_cond); mutex_unlock(&pool->pool_lock); } static bool stale_work(struct work *work, bool share); static inline bool should_roll(struct work *work) { struct timeval now; time_t expiry; if (work->pool != current_pool() && pool_strategy != POOL_LOADBALANCE && pool_strategy != POOL_BALANCE) return false; if (work->rolltime > opt_scantime) expiry = work->rolltime; else expiry = opt_scantime; expiry = expiry * 2 / 3; /* We shouldn't roll if we're unlikely to get one shares' duration * work out of doing so */ gettimeofday(&now, NULL); if (now.tv_sec - work->tv_staged.tv_sec > expiry) return false; return true; } /* Limit rolls to 7000 to not beyond 2 hours in the future where bitcoind will * reject blocks as invalid. */ static inline bool can_roll(struct work *work) { return (!work->stratum && work->pool && work->rolltime && !work->clone && work->rolls < 7000 && !stale_work(work, false)); } static void roll_work(struct work *work) { uint32_t *work_ntime; uint32_t ntime; work_ntime = (uint32_t *)(work->data + 68); ntime = be32toh(*work_ntime); ntime++; *work_ntime = htobe32(ntime); local_work++; work->rolls++; work->blk.nonce = 0; applog(LOG_DEBUG, "Successfully rolled work"); /* This is now a different work item so it needs a different ID for the * hashtable */ work->id = total_work++; } /* Duplicates any dynamically allocated arrays within the work struct to * prevent a copied work struct from freeing ram belonging to another struct */ void __copy_work(struct work *work, struct work *base_work) { clean_work(work); memcpy(work, base_work, sizeof(struct work)); if (base_work->job_id) work->job_id = strdup(base_work->job_id); if (base_work->nonce2) work->nonce2 = strdup(base_work->nonce2); if (base_work->ntime) work->ntime = strdup(base_work->ntime); if (base_work->gbt_coinbase) work->gbt_coinbase = strdup(base_work->gbt_coinbase); } /* Generates a copy of an existing work struct, creating fresh heap allocations * for all dynamically allocated arrays within the struct */ struct work *copy_work(struct work *base_work) { struct work *work = make_work(); __copy_work(work, base_work); return work; } static struct work *make_clone(struct work *work) { struct work *work_clone = copy_work(work); work_clone->clone = true; gettimeofday((struct timeval *)&(work_clone->tv_cloned), NULL); work_clone->longpoll = false; work_clone->mandatory = false; /* Make cloned work appear slightly older to bias towards keeping the * master work item which can be further rolled */ work_clone->tv_staged.tv_sec -= 1; return work_clone; } static void stage_work(struct work *work); /* Called with stgd_lock held */ static bool __clone_available(void) { struct work *work, *tmp; bool cloned = false; if (!staged_rollable) goto out; HASH_ITER(hh, staged_work, work, tmp) { if (can_roll(work) && should_roll(work)) { struct work *work_clone; roll_work(work); work_clone = make_clone(work); roll_work(work); applog(LOG_DEBUG, "Pushing cloned available work to stage thread"); stage_work(work_clone); cloned = true; break; } } out: return cloned; } static void pool_died(struct pool *pool) { if (!pool_tset(pool, &pool->idle)) { gettimeofday(&pool->tv_idle, NULL); if (pool == current_pool()) { applog(LOG_WARNING, "Pool %d %s not responding!", pool->pool_no, pool->rpc_url); switch_pools(NULL); } else applog(LOG_INFO, "Pool %d %s failed to return work", pool->pool_no, pool->rpc_url); } } static bool stale_work(struct work *work, bool share) { struct timeval now; time_t work_expiry; struct pool *pool; int getwork_delay; if (work->work_block != work_block) { applog(LOG_DEBUG, "Work stale due to block mismatch"); return true; } /* Technically the rolltime should be correct but some pools * advertise a broken expire= that is lower than a meaningful * scantime */ if (work->rolltime > opt_scantime) work_expiry = work->rolltime; else work_expiry = opt_expiry; pool = work->pool; if (!share && pool->has_stratum) { bool same_job = true; mutex_lock(&pool->pool_lock); if (strcmp(work->job_id, pool->swork.job_id)) same_job = false; mutex_unlock(&pool->pool_lock); if (!same_job) { applog(LOG_DEBUG, "Work stale due to stratum job_id mismatch"); return true; } } /* Factor in the average getwork delay of this pool, rounding it up to * the nearest second */ getwork_delay = pool->cgminer_pool_stats.getwork_wait_rolling * 5 + 1; work_expiry -= getwork_delay; if (unlikely(work_expiry < 5)) work_expiry = 5; gettimeofday(&now, NULL); if ((now.tv_sec - work->tv_staged.tv_sec) >= work_expiry) { applog(LOG_DEBUG, "Work stale due to expiry"); return true; } if (opt_fail_only && !share && pool != current_pool() && !work->mandatory && pool_strategy != POOL_LOADBALANCE && pool_strategy != POOL_BALANCE) { applog(LOG_DEBUG, "Work stale due to fail only pool mismatch"); return true; } return false; } static void check_solve(struct work *work) { #ifndef MIPSEB /* This segfaults on openwrt */ work->block = regeneratehash(work); if (unlikely(work->block)) { work->pool->solved++; found_blocks++; work->mandatory = true; applog(LOG_NOTICE, "Found block for pool %d!", work->pool->pool_no); } #endif } static void *submit_work_thread(void *userdata) { struct work *work = (struct work *)userdata; struct pool *pool = work->pool; bool resubmit = false; struct curl_ent *ce; pthread_detach(pthread_self()); RenameThread("submit_work"); applog(LOG_DEBUG, "Creating extra submit work thread"); check_solve(work); if (stale_work(work, true)) { if (opt_submit_stale) applog(LOG_NOTICE, "Pool %d stale share detected, submitting as user requested", pool->pool_no); else if (pool->submit_old) applog(LOG_NOTICE, "Pool %d stale share detected, submitting as pool requested", pool->pool_no); else { applog(LOG_NOTICE, "Pool %d stale share detected, discarding", pool->pool_no); sharelog("discard", work); mutex_lock(&stats_lock); total_stale++; pool->stale_shares++; total_diff_stale += work->work_difficulty; pool->diff_stale += work->work_difficulty; mutex_unlock(&stats_lock); goto out; } work->stale = true; } if (work->stratum) { struct stratum_share *sshare = calloc(sizeof(struct stratum_share), 1); uint32_t *hash32 = (uint32_t *)work->hash, nonce; char *noncehex; char s[1024]; sshare->work = copy_work(work); mutex_lock(&sshare_lock); /* Give the stratum share a unique id */ sshare->id = swork_id++; HASH_ADD_INT(stratum_shares, id, sshare); mutex_unlock(&sshare_lock); nonce = *((uint32_t *)(work->data + 76)); noncehex = bin2hex((const unsigned char *)&nonce, 4); memset(s, 0, 1024); sprintf(s, "{\"params\": [\"%s\", \"%s\", \"%s\", \"%s\", \"%s\"], \"id\": %d, \"method\": \"mining.submit\"}", pool->rpc_user, work->job_id, work->nonce2, work->ntime, noncehex, sshare->id); free(noncehex); applog(LOG_INFO, "Submitting share %08lx to pool %d", (unsigned long)(hash32[6]), pool->pool_no); if (likely(stratum_send(pool, s, strlen(s)))) { if (pool_tclear(pool, &pool->submit_fail)) applog(LOG_WARNING, "Pool %d communication resumed, submitting work", pool->pool_no); applog(LOG_DEBUG, "Successfully submitted, adding to stratum_shares db"); } else if (!pool_tset(pool, &pool->submit_fail)) { applog(LOG_WARNING, "Pool %d stratum share submission failure", pool->pool_no); total_ro++; pool->remotefail_occasions++; } goto out; } ce = pop_curl_entry(pool); /* submit solution to bitcoin via JSON-RPC */ while (!submit_upstream_work(work, ce->curl, resubmit)) { resubmit = true; if (stale_work(work, true)) { applog(LOG_NOTICE, "Pool %d share became stale while retrying submit, discarding", pool->pool_no); mutex_lock(&stats_lock); total_stale++; pool->stale_shares++; total_diff_stale += work->work_difficulty; pool->diff_stale += work->work_difficulty; mutex_unlock(&stats_lock); break; } /* pause, then restart work-request loop */ applog(LOG_INFO, "json_rpc_call failed on submit_work, retrying"); } push_curl_entry(ce, pool); out: return NULL; } /* Find the pool that currently has the highest priority */ static struct pool *priority_pool(int choice) { struct pool *ret = NULL; int i; for (i = 0; i < total_pools; i++) { struct pool *pool = pools[i]; if (pool->prio == choice) { ret = pool; break; } } if (unlikely(!ret)) { applog(LOG_ERR, "WTF No pool %d found!", choice); return pools[choice]; } return ret; } void switch_pools(struct pool *selected) { struct pool *pool, *last_pool; int i, pool_no, next_pool; mutex_lock(&control_lock); last_pool = currentpool; pool_no = currentpool->pool_no; /* Switch selected to pool number 0 and move the rest down */ if (selected) { if (selected->prio != 0) { for (i = 0; i < total_pools; i++) { pool = pools[i]; if (pool->prio < selected->prio) pool->prio++; } selected->prio = 0; } } switch (pool_strategy) { /* Both of these set to the master pool */ case POOL_BALANCE: case POOL_FAILOVER: case POOL_LOADBALANCE: for (i = 0; i < total_pools; i++) { pool = priority_pool(i); if (!pool->idle && pool->enabled == POOL_ENABLED) { pool_no = pool->pool_no; break; } } break; /* Both of these simply increment and cycle */ case POOL_ROUNDROBIN: case POOL_ROTATE: if (selected && !selected->idle) { pool_no = selected->pool_no; break; } next_pool = pool_no; /* Select the next alive pool */ for (i = 1; i < total_pools; i++) { next_pool++; if (next_pool >= total_pools) next_pool = 0; pool = pools[next_pool]; if (!pool->idle && pool->enabled == POOL_ENABLED) { pool_no = next_pool; break; } } break; default: break; } currentpool = pools[pool_no]; pool = currentpool; mutex_unlock(&control_lock); /* Set the lagging flag to avoid pool not providing work fast enough * messages in failover only mode since we have to get all fresh work * as in restart_threads */ if (opt_fail_only) pool_tset(pool, &pool->lagging); if (pool != last_pool && pool_strategy != POOL_LOADBALANCE && pool_strategy != POOL_BALANCE) applog(LOG_WARNING, "Switching to %s", pool->rpc_url); mutex_lock(&lp_lock); pthread_cond_broadcast(&lp_cond); mutex_unlock(&lp_lock); } static void discard_work(struct work *work) { if (!work->clone && !work->rolls && !work->mined) { if (work->pool) work->pool->discarded_work++; total_discarded++; applog(LOG_DEBUG, "Discarded work"); } else applog(LOG_DEBUG, "Discarded cloned or rolled work"); free_work(work); } static void wake_gws(void) { mutex_lock(stgd_lock); pthread_cond_signal(&gws_cond); mutex_unlock(stgd_lock); } static void discard_stale(void) { struct work *work, *tmp; int stale = 0; mutex_lock(stgd_lock); HASH_ITER(hh, staged_work, work, tmp) { if (stale_work(work, false)) { HASH_DEL(staged_work, work); discard_work(work); stale++; } } pthread_cond_signal(&gws_cond); mutex_unlock(stgd_lock); if (stale) applog(LOG_DEBUG, "Discarded %d stales that didn't match current hash", stale); } /* A generic wait function for threads that poll that will wait a specified * time tdiff waiting on the pthread conditional that is broadcast when a * work restart is required. Returns the value of pthread_cond_timedwait * which is zero if the condition was met or ETIMEDOUT if not. */ int restart_wait(unsigned int mstime) { struct timeval now, then, tdiff; struct timespec abstime; int rc; tdiff.tv_sec = mstime / 1000; tdiff.tv_usec = mstime * 1000 - (tdiff.tv_sec * 1000000); gettimeofday(&now, NULL); timeradd(&now, &tdiff, &then); abstime.tv_sec = then.tv_sec; abstime.tv_nsec = then.tv_usec * 1000; mutex_lock(&restart_lock); rc = pthread_cond_timedwait(&restart_cond, &restart_lock, &abstime); mutex_unlock(&restart_lock); return rc; } static void restart_threads(void) { struct pool *cp = current_pool(); int i; /* Artificially set the lagging flag to avoid pool not providing work * fast enough messages after every long poll */ pool_tset(cp, &cp->lagging); /* Discard staged work that is now stale */ discard_stale(); for (i = 0; i < mining_threads; i++) thr_info[i].work_restart = true; mutex_lock(&restart_lock); pthread_cond_broadcast(&restart_cond); mutex_unlock(&restart_lock); } static void set_curblock(char *hexstr, unsigned char *hash) { unsigned char hash_swap[32]; unsigned char block_hash_swap[32]; char *old_hash; strcpy(current_block, hexstr); swap256(hash_swap, hash); swap256(block_hash_swap, hash + 4); /* Don't free current_hash directly to avoid dereferencing when read * elsewhere - and update block_timeval inside the same lock */ mutex_lock(&ch_lock); gettimeofday(&block_timeval, NULL); old_hash = current_hash; current_hash = bin2hex(hash_swap + 2, 12); free(old_hash); old_hash = current_fullhash; current_fullhash = bin2hex(block_hash_swap, 32); free(old_hash); mutex_unlock(&ch_lock); get_timestamp(blocktime, &block_timeval); applog(LOG_INFO, "New block: %s...", current_hash); } /* Search to see if this string is from a block that has been seen before */ static bool block_exists(char *hexstr) { struct block *s; rd_lock(&blk_lock); HASH_FIND_STR(blocks, hexstr, s); rd_unlock(&blk_lock); if (s) return true; return false; } /* Tests if this work is from a block that has been seen before */ static inline bool from_existing_block(struct work *work) { char *hexstr = bin2hex(work->data + 8, 18); bool ret; ret = block_exists(hexstr); free(hexstr); return ret; } static int block_sort(struct block *blocka, struct block *blockb) { return blocka->block_no - blockb->block_no; } static bool test_work_current(struct work *work) { bool ret = true; char *hexstr; if (work->mandatory) return ret; /* Hack to work around dud work sneaking into test */ hexstr = bin2hex(work->data + 8, 18); if (!strncmp(hexstr, "000000000000000000000000000000000000", 36)) goto out_free; /* Search to see if this block exists yet and if not, consider it a * new block and set the current block details to this one */ if (!block_exists(hexstr)) { struct block *s = calloc(sizeof(struct block), 1); int deleted_block = 0; ret = false; if (unlikely(!s)) quit (1, "test_work_current OOM"); strcpy(s->hash, hexstr); s->block_no = new_blocks++; wr_lock(&blk_lock); /* Only keep the last hour's worth of blocks in memory since * work from blocks before this is virtually impossible and we * want to prevent memory usage from continually rising */ if (HASH_COUNT(blocks) > 6) { struct block *oldblock; HASH_SORT(blocks, block_sort); oldblock = blocks; deleted_block = oldblock->block_no; HASH_DEL(blocks, oldblock); free(oldblock); } HASH_ADD_STR(blocks, hash, s); wr_unlock(&blk_lock); if (deleted_block) applog(LOG_DEBUG, "Deleted block %d from database", deleted_block); set_curblock(hexstr, work->data); if (unlikely(new_blocks == 1)) goto out_free; work->work_block = ++work_block; if (!work->stratum) { if (work->longpoll) { applog(LOG_NOTICE, "%sLONGPOLL from pool %d detected new block", work->gbt ? "GBT " : "", work->pool->pool_no); } else if (have_longpoll) applog(LOG_NOTICE, "New block detected on network before longpoll"); else applog(LOG_NOTICE, "New block detected on network"); } restart_threads(); } else if (work->longpoll) { work->work_block = ++work_block; if (work->pool == current_pool()) { applog(LOG_NOTICE, "%sLONGPOLL from pool %d requested work restart", work->gbt ? "GBT " : "", work->pool->pool_no); restart_threads(); } } work->longpoll = false; out_free: free(hexstr); return ret; } static int tv_sort(struct work *worka, struct work *workb) { return worka->tv_staged.tv_sec - workb->tv_staged.tv_sec; } static bool work_rollable(struct work *work) { return (!work->clone && work->rolltime); } static bool hash_push(struct work *work) { bool rc = true; mutex_lock(stgd_lock); if (work_rollable(work)) staged_rollable++; if (likely(!getq->frozen)) { HASH_ADD_INT(staged_work, id, work); HASH_SORT(staged_work, tv_sort); } else rc = false; pthread_cond_broadcast(&getq->cond); mutex_unlock(stgd_lock); return rc; } static void *stage_thread(void *userdata) { struct thr_info *mythr = userdata; bool ok = true; pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL); RenameThread("stage"); while (ok) { struct work *work = NULL; applog(LOG_DEBUG, "Popping work to stage thread"); work = tq_pop(mythr->q, NULL); if (unlikely(!work)) { applog(LOG_ERR, "Failed to tq_pop in stage_thread"); ok = false; break; } work->work_block = work_block; test_work_current(work); applog(LOG_DEBUG, "Pushing work to getwork queue"); if (unlikely(!hash_push(work))) { applog(LOG_WARNING, "Failed to hash_push in stage_thread"); continue; } } tq_freeze(mythr->q); return NULL; } static void stage_work(struct work *work) { applog(LOG_DEBUG, "Pushing work from pool %d to hash queue", work->pool->pool_no); work->work_block = work_block; test_work_current(work); hash_push(work); } #ifdef HAVE_CURSES int curses_int(const char *query) { int ret; char *cvar; cvar = curses_input(query); ret = atoi(cvar); free(cvar); return ret; } #endif #ifdef HAVE_CURSES static bool input_pool(bool live); #endif #ifdef HAVE_CURSES static void display_pool_summary(struct pool *pool) { double efficiency = 0.0; if (curses_active_locked()) { wlog("Pool: %s\n", pool->rpc_url); if (pool->solved) wlog("SOLVED %d BLOCK%s!\n", pool->solved, pool->solved > 1 ? "S" : ""); wlog("%s own long-poll support\n", pool->hdr_path ? "Has" : "Does not have"); wlog(" Queued work requests: %d\n", pool->getwork_requested); wlog(" Share submissions: %d\n", pool->accepted + pool->rejected); wlog(" Accepted shares: %d\n", pool->accepted); wlog(" Rejected shares: %d\n", pool->rejected); wlog(" Accepted difficulty shares: %1.f\n", pool->diff_accepted); wlog(" Rejected difficulty shares: %1.f\n", pool->diff_rejected); if (pool->accepted || pool->rejected) wlog(" Reject ratio: %.1f%%\n", (double)(pool->rejected * 100) / (double)(pool->accepted + pool->rejected)); efficiency = pool->getwork_requested ? pool->accepted * 100.0 / pool->getwork_requested : 0.0; wlog(" Efficiency (accepted / queued): %.0f%%\n", efficiency); wlog(" Discarded work due to new blocks: %d\n", pool->discarded_work); wlog(" Stale submissions discarded due to new blocks: %d\n", pool->stale_shares); wlog(" Unable to get work from server occasions: %d\n", pool->getfail_occasions); wlog(" Submitting work remotely delay occasions: %d\n\n", pool->remotefail_occasions); unlock_curses(); } } #endif /* We can't remove the memory used for this struct pool because there may * still be work referencing it. We just remove it from the pools list */ void remove_pool(struct pool *pool) { int i, last_pool = total_pools - 1; struct pool *other; /* Boost priority of any lower prio than this one */ for (i = 0; i < total_pools; i++) { other = pools[i]; if (other->prio > pool->prio) other->prio--; } if (pool->pool_no < last_pool) { /* Swap the last pool for this one */ (pools[last_pool])->pool_no = pool->pool_no; pools[pool->pool_no] = pools[last_pool]; } /* Give it an invalid number */ pool->pool_no = total_pools; pool->removed = true; total_pools--; } /* add a mutex if this needs to be thread safe in the future */ static struct JE { char *buf; struct JE *next; } *jedata = NULL; static void json_escape_free() { struct JE *jeptr = jedata; struct JE *jenext; jedata = NULL; while (jeptr) { jenext = jeptr->next; free(jeptr->buf); free(jeptr); jeptr = jenext; } } static char *json_escape(char *str) { struct JE *jeptr; char *buf, *ptr; /* 2x is the max, may as well just allocate that */ ptr = buf = malloc(strlen(str) * 2 + 1); jeptr = malloc(sizeof(*jeptr)); jeptr->buf = buf; jeptr->next = jedata; jedata = jeptr; while (*str) { if (*str == '\\' || *str == '"') *(ptr++) = '\\'; *(ptr++) = *(str++); } *ptr = '\0'; return buf; } void write_config(FILE *fcfg) { int i; /* Write pool values */ fputs("{\n\"pools\" : [", fcfg); for(i = 0; i < total_pools; i++) { fprintf(fcfg, "%s\n\t{\n\t\t\"url\" : \"%s%s%s%s\",", i > 0 ? "," : "", pools[i]->rpc_proxy ? json_escape((char *)proxytype(pools[i]->rpc_proxytype)) : "", pools[i]->rpc_proxy ? json_escape(pools[i]->rpc_proxy) : "", pools[i]->rpc_proxy ? "|" : "", json_escape(pools[i]->rpc_url)); fprintf(fcfg, "\n\t\t\"user\" : \"%s\",", json_escape(pools[i]->rpc_user)); fprintf(fcfg, "\n\t\t\"pass\" : \"%s\"\n\t}", json_escape(pools[i]->rpc_pass)); } fputs("\n]\n", fcfg); #ifdef HAVE_OPENCL if (nDevs) { /* Write GPU device values */ fputs(",\n\"intensity\" : \"", fcfg); for(i = 0; i < nDevs; i++) fprintf(fcfg, gpus[i].dynamic ? "%sd" : "%s%d", i > 0 ? "," : "", gpus[i].intensity); fputs("\",\n\"vectors\" : \"", fcfg); for(i = 0; i < nDevs; i++) fprintf(fcfg, "%s%d", i > 0 ? "," : "", gpus[i].vwidth); fputs("\",\n\"worksize\" : \"", fcfg); for(i = 0; i < nDevs; i++) fprintf(fcfg, "%s%d", i > 0 ? "," : "", (int)gpus[i].work_size); fputs("\",\n\"kernel\" : \"", fcfg); for(i = 0; i < nDevs; i++) { fprintf(fcfg, "%s", i > 0 ? "," : ""); switch (gpus[i].kernel) { case KL_NONE: // Shouldn't happen break; case KL_POCLBM: fprintf(fcfg, "poclbm"); break; case KL_PHATK: fprintf(fcfg, "phatk"); break; case KL_DIAKGCN: fprintf(fcfg, "diakgcn"); break; case KL_DIABLO: fprintf(fcfg, "diablo"); break; case KL_SCRYPT: fprintf(fcfg, "scrypt"); break; } } #ifdef USE_SCRYPT fputs("\",\n\"lookup-gap\" : \"", fcfg); for(i = 0; i < nDevs; i++) fprintf(fcfg, "%s%d", i > 0 ? "," : "", (int)gpus[i].opt_lg); fputs("\",\n\"thread-concurrency\" : \"", fcfg); for(i = 0; i < nDevs; i++) fprintf(fcfg, "%s%d", i > 0 ? "," : "", (int)gpus[i].opt_tc); fputs("\",\n\"shaders\" : \"", fcfg); for(i = 0; i < nDevs; i++) fprintf(fcfg, "%s%d", i > 0 ? "," : "", (int)gpus[i].shaders); #endif #ifdef HAVE_ADL fputs("\",\n\"gpu-engine\" : \"", fcfg); for(i = 0; i < nDevs; i++) fprintf(fcfg, "%s%d-%d", i > 0 ? "," : "", gpus[i].min_engine, gpus[i].gpu_engine); fputs("\",\n\"gpu-fan\" : \"", fcfg); for(i = 0; i < nDevs; i++) fprintf(fcfg, "%s%d-%d", i > 0 ? "," : "", gpus[i].min_fan, gpus[i].gpu_fan); fputs("\",\n\"gpu-memclock\" : \"", fcfg); for(i = 0; i < nDevs; i++) fprintf(fcfg, "%s%d", i > 0 ? "," : "", gpus[i].gpu_memclock); fputs("\",\n\"gpu-memdiff\" : \"", fcfg); for(i = 0; i < nDevs; i++) fprintf(fcfg, "%s%d", i > 0 ? "," : "", gpus[i].gpu_memdiff); fputs("\",\n\"gpu-powertune\" : \"", fcfg); for(i = 0; i < nDevs; i++) fprintf(fcfg, "%s%d", i > 0 ? "," : "", gpus[i].gpu_powertune); fputs("\",\n\"gpu-vddc\" : \"", fcfg); for(i = 0; i < nDevs; i++) fprintf(fcfg, "%s%1.3f", i > 0 ? "," : "", gpus[i].gpu_vddc); fputs("\",\n\"temp-cutoff\" : \"", fcfg); for(i = 0; i < nDevs; i++) fprintf(fcfg, "%s%d", i > 0 ? "," : "", gpus[i].cutofftemp); fputs("\",\n\"temp-overheat\" : \"", fcfg); for(i = 0; i < nDevs; i++) fprintf(fcfg, "%s%d", i > 0 ? "," : "", gpus[i].adl.overtemp); fputs("\",\n\"temp-target\" : \"", fcfg); for(i = 0; i < nDevs; i++) fprintf(fcfg, "%s%d", i > 0 ? "," : "", gpus[i].adl.targettemp); #endif fputs("\"", fcfg); } #endif #ifdef HAVE_ADL if (opt_reorder) fprintf(fcfg, ",\n\"gpu-reorder\" : true"); #endif #ifdef WANT_CPUMINE fprintf(fcfg, ",\n\"algo\" : \"%s\"", algo_names[opt_algo]); #endif /* Simple bool and int options */ struct opt_table *opt; for (opt = opt_config_table; opt->type != OPT_END; opt++) { char *p, *name = strdup(opt->names); for (p = strtok(name, "|"); p; p = strtok(NULL, "|")) { if (p[1] != '-') continue; if (opt->type & OPT_NOARG && ((void *)opt->cb == (void *)opt_set_bool || (void *)opt->cb == (void *)opt_set_invbool) && (*(bool *)opt->u.arg == ((void *)opt->cb == (void *)opt_set_bool))) fprintf(fcfg, ",\n\"%s\" : true", p+2); if (opt->type & OPT_HASARG && ((void *)opt->cb_arg == (void *)set_int_0_to_9999 || (void *)opt->cb_arg == (void *)set_int_1_to_65535 || (void *)opt->cb_arg == (void *)set_int_0_to_10 || (void *)opt->cb_arg == (void *)set_int_1_to_10) && opt->desc != opt_hidden) fprintf(fcfg, ",\n\"%s\" : \"%d\"", p+2, *(int *)opt->u.arg); } } /* Special case options */ fprintf(fcfg, ",\n\"shares\" : \"%d\"", opt_shares); if (pool_strategy == POOL_BALANCE) fputs(",\n\"balance\" : true", fcfg); if (pool_strategy == POOL_LOADBALANCE) fputs(",\n\"load-balance\" : true", fcfg); if (pool_strategy == POOL_ROUNDROBIN) fputs(",\n\"round-robin\" : true", fcfg); if (pool_strategy == POOL_ROTATE) fprintf(fcfg, ",\n\"rotate\" : \"%d\"", opt_rotate_period); #if defined(unix) if (opt_stderr_cmd && *opt_stderr_cmd) fprintf(fcfg, ",\n\"monitor\" : \"%s\"", json_escape(opt_stderr_cmd)); #endif // defined(unix) if (opt_kernel_path && *opt_kernel_path) { char *kpath = strdup(opt_kernel_path); if (kpath[strlen(kpath)-1] == '/') kpath[strlen(kpath)-1] = 0; fprintf(fcfg, ",\n\"kernel-path\" : \"%s\"", json_escape(kpath)); } if (schedstart.enable) fprintf(fcfg, ",\n\"sched-time\" : \"%d:%d\"", schedstart.tm.tm_hour, schedstart.tm.tm_min); if (schedstop.enable) fprintf(fcfg, ",\n\"stop-time\" : \"%d:%d\"", schedstop.tm.tm_hour, schedstop.tm.tm_min); if (opt_socks_proxy && *opt_socks_proxy) fprintf(fcfg, ",\n\"socks-proxy\" : \"%s\"", json_escape(opt_socks_proxy)); #ifdef HAVE_OPENCL for(i = 0; i < nDevs; i++) if (gpus[i].deven == DEV_DISABLED) break; if (i < nDevs) for (i = 0; i < nDevs; i++) if (gpus[i].deven != DEV_DISABLED) fprintf(fcfg, ",\n\"device\" : \"%d\"", i); #endif if (opt_api_allow) fprintf(fcfg, ",\n\"api-allow\" : \"%s\"", json_escape(opt_api_allow)); if (strcmp(opt_api_description, PACKAGE_STRING) != 0) fprintf(fcfg, ",\n\"api-description\" : \"%s\"", json_escape(opt_api_description)); if (opt_api_groups) fprintf(fcfg, ",\n\"api-groups\" : \"%s\"", json_escape(opt_api_groups)); if (opt_icarus_options) fprintf(fcfg, ",\n\"icarus-options\" : \"%s\"", json_escape(opt_icarus_options)); if (opt_icarus_timing) fprintf(fcfg, ",\n\"icarus-timing\" : \"%s\"", json_escape(opt_icarus_timing)); fputs("\n}\n", fcfg); json_escape_free(); } #ifdef HAVE_CURSES static void display_pools(void) { struct pool *pool; int selected, i; char input; opt_loginput = true; immedok(logwin, true); clear_logwin(); updated: for (i = 0; i < total_pools; i++) { pool = pools[i]; if (pool == current_pool()) wattron(logwin, A_BOLD); if (pool->enabled != POOL_ENABLED) wattron(logwin, A_DIM); wlogprint("%d: ", pool->pool_no); switch (pool->enabled) { case POOL_ENABLED: wlogprint("Enabled "); break; case POOL_DISABLED: wlogprint("Disabled "); break; case POOL_REJECTING: wlogprint("Rejecting "); break; } wlogprint("%s Priority %d: %s User:%s\n", pool->idle? "Dead" : "Alive", pool->prio, pool->rpc_url, pool->rpc_user); wattroff(logwin, A_BOLD | A_DIM); } retry: wlogprint("\nCurrent pool management strategy: %s\n", strategies[pool_strategy]); if (pool_strategy == POOL_ROTATE) wlogprint("Set to rotate every %d minutes\n", opt_rotate_period); wlogprint("[F]ailover only %s\n", opt_fail_only ? "enabled" : "disabled"); wlogprint("[A]dd pool [R]emove pool [D]isable pool [E]nable pool\n"); wlogprint("[C]hange management strategy [S]witch pool [I]nformation\n"); wlogprint("Or press any other key to continue\n"); input = getch(); if (!strncasecmp(&input, "a", 1)) { input_pool(true); goto updated; } else if (!strncasecmp(&input, "r", 1)) { if (total_pools <= 1) { wlogprint("Cannot remove last pool"); goto retry; } selected = curses_int("Select pool number"); if (selected < 0 || selected >= total_pools) { wlogprint("Invalid selection\n"); goto retry; } pool = pools[selected]; if (pool == current_pool()) switch_pools(NULL); if (pool == current_pool()) { wlogprint("Unable to remove pool due to activity\n"); goto retry; } disable_pool(pool); remove_pool(pool); goto updated; } else if (!strncasecmp(&input, "s", 1)) { selected = curses_int("Select pool number"); if (selected < 0 || selected >= total_pools) { wlogprint("Invalid selection\n"); goto retry; } pool = pools[selected]; enable_pool(pool); switch_pools(pool); goto updated; } else if (!strncasecmp(&input, "d", 1)) { if (enabled_pools <= 1) { wlogprint("Cannot disable last pool"); goto retry; } selected = curses_int("Select pool number"); if (selected < 0 || selected >= total_pools) { wlogprint("Invalid selection\n"); goto retry; } pool = pools[selected]; disable_pool(pool); if (pool == current_pool()) switch_pools(NULL); goto updated; } else if (!strncasecmp(&input, "e", 1)) { selected = curses_int("Select pool number"); if (selected < 0 || selected >= total_pools) { wlogprint("Invalid selection\n"); goto retry; } pool = pools[selected]; enable_pool(pool); if (pool->prio < current_pool()->prio) switch_pools(pool); goto updated; } else if (!strncasecmp(&input, "c", 1)) { for (i = 0; i <= TOP_STRATEGY; i++) wlogprint("%d: %s\n", i, strategies[i]); selected = curses_int("Select strategy number type"); if (selected < 0 || selected > TOP_STRATEGY) { wlogprint("Invalid selection\n"); goto retry; } if (selected == POOL_ROTATE) { opt_rotate_period = curses_int("Select interval in minutes"); if (opt_rotate_period < 0 || opt_rotate_period > 9999) { opt_rotate_period = 0; wlogprint("Invalid selection\n"); goto retry; } } pool_strategy = selected; switch_pools(NULL); goto updated; } else if (!strncasecmp(&input, "i", 1)) { selected = curses_int("Select pool number"); if (selected < 0 || selected >= total_pools) { wlogprint("Invalid selection\n"); goto retry; } pool = pools[selected]; display_pool_summary(pool); goto retry; } else if (!strncasecmp(&input, "f", 1)) { opt_fail_only ^= true; goto updated; } else clear_logwin(); immedok(logwin, false); opt_loginput = false; } static void display_options(void) { int selected; char input; opt_loginput = true; immedok(logwin, true); clear_logwin(); retry: wlogprint("[N]ormal [C]lear [S]ilent mode (disable all output)\n"); wlogprint("[D]ebug:%s\n[P]er-device:%s\n[Q]uiet:%s\n[V]erbose:%s\n" "[R]PC debug:%s\n[W]orkTime details:%s\nco[M]pact: %s\n" "[L]og interval:%d\n", opt_debug ? "on" : "off", want_per_device_stats? "on" : "off", opt_quiet ? "on" : "off", opt_log_output ? "on" : "off", opt_protocol ? "on" : "off", opt_worktime ? "on" : "off", opt_compact ? "on" : "off", opt_log_interval); wlogprint("Select an option or any other key to return\n"); input = getch(); if (!strncasecmp(&input, "q", 1)) { opt_quiet ^= true; wlogprint("Quiet mode %s\n", opt_quiet ? "enabled" : "disabled"); goto retry; } else if (!strncasecmp(&input, "v", 1)) { opt_log_output ^= true; if (opt_log_output) opt_quiet = false; wlogprint("Verbose mode %s\n", opt_log_output ? "enabled" : "disabled"); goto retry; } else if (!strncasecmp(&input, "n", 1)) { opt_log_output = false; opt_debug = false; opt_quiet = false; opt_protocol = false; opt_compact = false; want_per_device_stats = false; wlogprint("Output mode reset to normal\n"); switch_compact(); goto retry; } else if (!strncasecmp(&input, "d", 1)) { opt_debug ^= true; opt_log_output = opt_debug; if (opt_debug) opt_quiet = false; wlogprint("Debug mode %s\n", opt_debug ? "enabled" : "disabled"); goto retry; } else if (!strncasecmp(&input, "m", 1)) { opt_compact ^= true; wlogprint("Compact mode %s\n", opt_compact ? "enabled" : "disabled"); switch_compact(); goto retry; } else if (!strncasecmp(&input, "p", 1)) { want_per_device_stats ^= true; opt_log_output = want_per_device_stats; wlogprint("Per-device stats %s\n", want_per_device_stats ? "enabled" : "disabled"); goto retry; } else if (!strncasecmp(&input, "r", 1)) { opt_protocol ^= true; if (opt_protocol) opt_quiet = false; wlogprint("RPC protocol debugging %s\n", opt_protocol ? "enabled" : "disabled"); goto retry; } else if (!strncasecmp(&input, "c", 1)) clear_logwin(); else if (!strncasecmp(&input, "l", 1)) { selected = curses_int("Interval in seconds"); if (selected < 0 || selected > 9999) { wlogprint("Invalid selection\n"); goto retry; } opt_log_interval = selected; wlogprint("Log interval set to %d seconds\n", opt_log_interval); goto retry; } else if (!strncasecmp(&input, "s", 1)) { opt_realquiet = true; } else if (!strncasecmp(&input, "w", 1)) { opt_worktime ^= true; wlogprint("WorkTime details %s\n", opt_worktime ? "enabled" : "disabled"); goto retry; } else clear_logwin(); immedok(logwin, false); opt_loginput = false; } #endif void default_save_file(char *filename) { if (default_config && *default_config) { strcpy(filename, default_config); return; } #if defined(unix) if (getenv("HOME") && *getenv("HOME")) { strcpy(filename, getenv("HOME")); strcat(filename, "/"); } else strcpy(filename, ""); strcat(filename, ".cgminer/"); mkdir(filename, 0777); #else strcpy(filename, ""); #endif strcat(filename, def_conf); } #ifdef HAVE_CURSES static void set_options(void) { int selected; char input; opt_loginput = true; immedok(logwin, true); clear_logwin(); retry: wlogprint("[Q]ueue: %d\n[S]cantime: %d\n[E]xpiry: %d\n" "[W]rite config file\n[C]gminer restart\n", opt_queue, opt_scantime, opt_expiry); wlogprint("Select an option or any other key to return\n"); input = getch(); if (!strncasecmp(&input, "q", 1)) { selected = curses_int("Extra work items to queue"); if (selected < 0 || selected > 9999) { wlogprint("Invalid selection\n"); goto retry; } opt_queue = selected; goto retry; } else if (!strncasecmp(&input, "s", 1)) { selected = curses_int("Set scantime in seconds"); if (selected < 0 || selected > 9999) { wlogprint("Invalid selection\n"); goto retry; } opt_scantime = selected; goto retry; } else if (!strncasecmp(&input, "e", 1)) { selected = curses_int("Set expiry time in seconds"); if (selected < 0 || selected > 9999) { wlogprint("Invalid selection\n"); goto retry; } opt_expiry = selected; goto retry; } else if (!strncasecmp(&input, "w", 1)) { FILE *fcfg; char *str, filename[PATH_MAX], prompt[PATH_MAX + 50]; default_save_file(filename); sprintf(prompt, "Config filename to write (Enter for default) [%s]", filename); str = curses_input(prompt); if (strcmp(str, "-1")) { struct stat statbuf; strcpy(filename, str); if (!stat(filename, &statbuf)) { wlogprint("File exists, overwrite?\n"); input = getch(); if (strncasecmp(&input, "y", 1)) goto retry; } } fcfg = fopen(filename, "w"); if (!fcfg) { wlogprint("Cannot open or create file\n"); goto retry; } write_config(fcfg); fclose(fcfg); goto retry; } else if (!strncasecmp(&input, "c", 1)) { wlogprint("Are you sure?\n"); input = getch(); if (!strncasecmp(&input, "y", 1)) app_restart(); else clear_logwin(); } else clear_logwin(); immedok(logwin, false); opt_loginput = false; } static void *input_thread(void __maybe_unused *userdata) { pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL); RenameThread("input"); if (!curses_active) return NULL; while (1) { char input; input = getch(); if (!strncasecmp(&input, "q", 1)) { kill_work(); return NULL; } else if (!strncasecmp(&input, "d", 1)) display_options(); else if (!strncasecmp(&input, "p", 1)) display_pools(); else if (!strncasecmp(&input, "s", 1)) set_options(); else if (have_opencl && !strncasecmp(&input, "g", 1)) manage_gpu(); if (opt_realquiet) { disable_curses(); break; } } return NULL; } #endif static void *api_thread(void *userdata) { struct thr_info *mythr = userdata; pthread_detach(pthread_self()); pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL); RenameThread("api"); api(api_thr_id); PTH(mythr) = 0L; return NULL; } void thread_reportin(struct thr_info *thr) { gettimeofday(&thr->last, NULL); thr->cgpu->status = LIFE_WELL; thr->getwork = false; thr->cgpu->device_last_well = time(NULL); } static inline void thread_reportout(struct thr_info *thr) { thr->getwork = true; } static void hashmeter(int thr_id, struct timeval *diff, uint64_t hashes_done) { struct timeval temp_tv_end, total_diff; double secs; double local_secs; double utility, efficiency = 0.0; static double local_mhashes_done = 0; static double rolling = 0; double local_mhashes; bool showlog = false; char displayed_hashes[16], displayed_rolling[16]; uint64_t dh64, dr64; local_mhashes = (double)hashes_done / 1000000.0; /* Update the last time this thread reported in */ if (thr_id >= 0) { gettimeofday(&thr_info[thr_id].last, NULL); thr_info[thr_id].cgpu->device_last_well = time(NULL); } secs = (double)diff->tv_sec + ((double)diff->tv_usec / 1000000.0); /* So we can call hashmeter from a non worker thread */ if (thr_id >= 0) { struct thr_info *thr = &thr_info[thr_id]; struct cgpu_info *cgpu = thr_info[thr_id].cgpu; double thread_rolling = 0.0; int i; applog(LOG_DEBUG, "[thread %d: %"PRIu64" hashes, %.1f khash/sec]", thr_id, hashes_done, hashes_done / 1000 / secs); /* Rolling average for each thread and each device */ decay_time(&thr->rolling, local_mhashes / secs); for (i = 0; i < cgpu->threads; i++) thread_rolling += cgpu->thr[i]->rolling; mutex_lock(&hash_lock); decay_time(&cgpu->rolling, thread_rolling); cgpu->total_mhashes += local_mhashes; mutex_unlock(&hash_lock); // If needed, output detailed, per-device stats if (want_per_device_stats) { struct timeval now; struct timeval elapsed; gettimeofday(&now, NULL); timersub(&now, &thr->cgpu->last_message_tv, &elapsed); if (opt_log_interval <= elapsed.tv_sec) { struct cgpu_info *cgpu = thr->cgpu; char logline[255]; cgpu->last_message_tv = now; get_statline(logline, cgpu); if (!curses_active) { printf("%s \r", logline); fflush(stdout); } else applog(LOG_INFO, "%s", logline); } } } /* Totals are updated by all threads so can race without locking */ mutex_lock(&hash_lock); gettimeofday(&temp_tv_end, NULL); timersub(&temp_tv_end, &total_tv_end, &total_diff); total_mhashes_done += local_mhashes; local_mhashes_done += local_mhashes; if (total_diff.tv_sec < opt_log_interval) /* Only update the total every opt_log_interval seconds */ goto out_unlock; showlog = true; gettimeofday(&total_tv_end, NULL); local_secs = (double)total_diff.tv_sec + ((double)total_diff.tv_usec / 1000000.0); decay_time(&rolling, local_mhashes_done / local_secs); global_hashrate = roundl(rolling) * 1000000; timersub(&total_tv_end, &total_tv_start, &total_diff); total_secs = (double)total_diff.tv_sec + ((double)total_diff.tv_usec / 1000000.0); utility = total_accepted / total_secs * 60; efficiency = total_getworks ? total_accepted * 100.0 / total_getworks : 0.0; dh64 = (double)total_mhashes_done / total_secs * 1000000ull; dr64 = (double)rolling * 1000000ull; suffix_string(dh64, displayed_hashes, 4); suffix_string(dr64, displayed_rolling, 4); sprintf(statusline, "%s(%ds):%s (avg):%sh/s | Q:%d A:%d R:%d HW:%d E:%.0f%% U:%.1f/m", want_per_device_stats ? "ALL " : "", opt_log_interval, displayed_rolling, displayed_hashes, total_getworks, total_accepted, total_rejected, hw_errors, efficiency, utility); local_mhashes_done = 0; out_unlock: mutex_unlock(&hash_lock); if (showlog) { if (!curses_active) { printf("%s \r", statusline); fflush(stdout); } else applog(LOG_INFO, "%s", statusline); } } static void stratum_share_result(json_t *val, json_t *res_val, json_t *err_val, struct stratum_share *sshare) { struct work *work = sshare->work; uint64_t sharediff = share_diff(work); char hashshow[65]; uint32_t *hash32; char diffdisp[16]; int intdiff; hash32 = (uint32_t *)(work->hash); intdiff = floor(work->work_difficulty); suffix_string(sharediff, diffdisp, 0); sprintf(hashshow, "%08lx Diff %s/%d%s", (unsigned long)(hash32[6]), diffdisp, intdiff, work->block? " BLOCK!" : ""); share_result(val, res_val, err_val, work, hashshow, false, ""); } /* Parses stratum json responses and tries to find the id that the request * matched to and treat it accordingly. */ static bool parse_stratum_response(struct pool *pool, char *s) { json_t *val = NULL, *err_val, *res_val, *id_val; struct stratum_share *sshare; json_error_t err; bool ret = false; int id; val = JSON_LOADS(s, &err); if (!val) { applog(LOG_INFO, "JSON decode failed(%d): %s", err.line, err.text); goto out; } res_val = json_object_get(val, "result"); err_val = json_object_get(val, "error"); id_val = json_object_get(val, "id"); if (json_is_null(id_val) || !id_val) { char *ss; if (err_val) ss = json_dumps(err_val, JSON_INDENT(3)); else ss = strdup("(unknown reason)"); applog(LOG_INFO, "JSON-RPC non method decode failed: %s", ss); free(ss); goto out; } id = json_integer_value(id_val); mutex_lock(&sshare_lock); HASH_FIND_INT(stratum_shares, &id, sshare); if (sshare) HASH_DEL(stratum_shares, sshare); mutex_unlock(&sshare_lock); if (!sshare) { if (json_is_true(res_val)) applog(LOG_NOTICE, "Accepted untracked stratum share from pool %d", pool->pool_no); else applog(LOG_NOTICE, "Rejected untracked stratum share from pool %d", pool->pool_no); goto out; } stratum_share_result(val, res_val, err_val, sshare); free_work(sshare->work); free(sshare); ret = true; out: if (val) json_decref(val); return ret; } static void clear_stratum_shares(struct pool *pool) { struct stratum_share *sshare, *tmpshare; int cleared = 0; mutex_lock(&sshare_lock); HASH_ITER(hh, stratum_shares, sshare, tmpshare) { if (sshare->work->pool == pool) { HASH_DEL(stratum_shares, sshare); free_work(sshare->work); free(sshare); cleared++; } } mutex_unlock(&sshare_lock); if (cleared) { applog(LOG_WARNING, "Lost %d shares due to stratum disconnect on pool %d", cleared, pool->pool_no); pool->stale_shares++; total_stale++; } } /* We only need to maintain a secondary pool connection when we need the * capacity to get work from the backup pools while still on the primary */ static bool cnx_needed(struct pool *pool) { struct pool *cp; /* Balance strategies need all pools online */ if (pool_strategy == POOL_BALANCE) return true; if (pool_strategy == POOL_LOADBALANCE) return true; /* Idle stratum pool needs something to kick it alive again */ if (pool->has_stratum && pool->idle) return true; /* Getwork pools without opt_fail_only need backup pools up to be able * to leak shares */ cp = current_pool(); if (cp == pool) return true; if (!cp->has_gbt && !cp->has_stratum && (!opt_fail_only || !cp->hdr_path)) return true; return false; } static void wait_lpcurrent(struct pool *pool); static void pool_resus(struct pool *pool); static void gen_stratum_work(struct pool *pool, struct work *work); /* One stratum thread per pool that has stratum waits on the socket checking * for new messages and for the integrity of the socket connection. We reset * the connection based on the integrity of the receive side only as the send * side will eventually expire data it fails to send. */ static void *stratum_thread(void *userdata) { struct pool *pool = (struct pool *)userdata; pthread_detach(pthread_self()); RenameThread("stratum"); while (42) { struct timeval timeout; fd_set rd; char *s; if (unlikely(pool->removed)) break; /* Check to see whether we need to maintain this connection * indefinitely or just bring it up when we switch to this * pool */ if (!cnx_needed(pool)) { suspend_stratum(pool); wait_lpcurrent(pool); if (!initiate_stratum(pool) || !auth_stratum(pool)) { pool_died(pool); while (!initiate_stratum(pool) || !auth_stratum(pool)) { if (pool->removed) goto out; sleep(30); } } } FD_ZERO(&rd); FD_SET(pool->sock, &rd); timeout.tv_sec = 90; timeout.tv_usec = 0; /* The protocol specifies that notify messages should be sent * every minute so if we fail to receive any for 90 seconds we * assume the connection has been dropped and treat this pool * as dead */ if (unlikely(select(pool->sock + 1, &rd, NULL, NULL, &timeout) < 1)) s = NULL; else s = recv_line(pool); if (!s) { applog(LOG_INFO, "Stratum connection to pool %d interrupted", pool->pool_no); pool->getfail_occasions++; total_go++; /* If the socket to our stratum pool disconnects, all * tracked submitted shares are lost and we will leak * the memory if we don't discard their records. */ clear_stratum_shares(pool); if (initiate_stratum(pool) && auth_stratum(pool)) continue; pool_died(pool); while (!initiate_stratum(pool) || !auth_stratum(pool)) { if (pool->removed) goto out; sleep(30); } applog(LOG_INFO, "Stratum connection to pool %d resumed", pool->pool_no); pool_tclear(pool, &pool->idle); pool_resus(pool); continue; } /* Check this pool hasn't died while being a backup pool and * has not had its idle flag cleared */ if (pool_tclear(pool, &pool->idle)) { applog(LOG_INFO, "Stratum connection to pool %d resumed", pool->pool_no); pool_resus(pool); } if (!parse_method(pool, s) && !parse_stratum_response(pool, s)) applog(LOG_INFO, "Unknown stratum msg: %s", s); free(s); if (pool->swork.clean) { struct work *work = make_work(); /* Generate a single work item to update the current * block database */ pool->swork.clean = false; gen_stratum_work(pool, work); if (test_work_current(work)) { /* Only accept a work restart if this stratum * connection is from the current pool */ if (pool == current_pool()) { restart_threads(); applog(LOG_NOTICE, "Stratum from pool %d requested work restart", pool->pool_no); } } else applog(LOG_NOTICE, "Stratum from pool %d detected new block", pool->pool_no); free_work(work); } } out: return NULL; } static void init_stratum_thread(struct pool *pool) { if (unlikely(pthread_create(&pool->stratum_thread, NULL, stratum_thread, (void *)pool))) quit(1, "Failed to create stratum thread"); } static void *longpoll_thread(void *userdata); static bool stratum_works(struct pool *pool) { applog(LOG_INFO, "Testing pool %d stratum %s", pool->pool_no, pool->stratum_url); if (!extract_sockaddr(pool, pool->stratum_url)) return false; if (!initiate_stratum(pool)) return false; return true; } static bool pool_active(struct pool *pool, bool pinging) { struct timeval tv_getwork, tv_getwork_reply; bool ret = false; json_t *val; CURL *curl; int rolltime; if (pool->has_gbt) applog(LOG_DEBUG, "Retrieving block template from pool %s", pool->rpc_url); else applog(LOG_INFO, "Testing pool %s", pool->rpc_url); /* This is the central point we activate stratum when we can */ retry_stratum: if (pool->has_stratum) { /* We create the stratum thread for each pool just after * successful authorisation. Once the auth flag has been set * we never unset it and the stratum thread is responsible for * setting/unsetting the active flag */ if (pool->stratum_auth) return pool->stratum_active; if (!pool->stratum_active && !initiate_stratum(pool)) return false; if (!auth_stratum(pool)) return false; pool->stratum_auth = true; pool->idle = false; init_stratum_thread(pool); return true; } curl = curl_easy_init(); if (unlikely(!curl)) { applog(LOG_ERR, "CURL initialisation failed"); return false; } /* Probe for GBT support on first pass */ if (!pool->probed && !opt_fix_protocol) { applog(LOG_DEBUG, "Probing for GBT support"); val = json_rpc_call(curl, pool->rpc_url, pool->rpc_userpass, gbt_req, true, false, &rolltime, pool, false); if (val) { bool append = false, submit = false; json_t *res_val, *mutables; int i, mutsize = 0; res_val = json_object_get(val, "result"); if (res_val) { mutables = json_object_get(res_val, "mutable"); mutsize = json_array_size(mutables); } for (i = 0; i < mutsize; i++) { json_t *arrval = json_array_get(mutables, i); if (json_is_string(arrval)) { const char *mutable = json_string_value(arrval); if (!strncasecmp(mutable, "coinbase/append", 15)) append = true; else if (!strncasecmp(mutable, "submit/coinbase", 15)) submit = true; } } json_decref(val); /* Only use GBT if it supports coinbase append and * submit coinbase */ if (append && submit) { pool->has_gbt = true; pool->rpc_req = gbt_req; } } /* Reset this so we can probe fully just after this. It will be * set to true that time.*/ pool->probed = false; if (pool->has_gbt) applog(LOG_DEBUG, "GBT coinbase + append support found, switching to GBT protocol"); else applog(LOG_DEBUG, "No GBT coinbase + append support found, using getwork protocol"); } gettimeofday(&tv_getwork, NULL); val = json_rpc_call(curl, pool->rpc_url, pool->rpc_userpass, pool->rpc_req, true, false, &rolltime, pool, false); gettimeofday(&tv_getwork_reply, NULL); /* Detect if a http getwork pool has an X-Stratum header at startup, * and if so, switch to that in preference to getwork if it works */ if (pool->stratum_url && !opt_fix_protocol && stratum_works(pool)) { applog(LOG_NOTICE, "Switching pool %d %s to %s", pool->pool_no, pool->rpc_url, pool->stratum_url); if (!pool->rpc_url) pool->rpc_url = strdup(pool->stratum_url); pool->has_stratum = true; curl_easy_cleanup(curl); goto retry_stratum; } if (val) { struct work *work = make_work(); bool rc; rc = work_decode(pool, work, val); if (rc) { applog(LOG_DEBUG, "Successfully retrieved and deciphered work from pool %u %s", pool->pool_no, pool->rpc_url); work->pool = pool; work->rolltime = rolltime; memcpy(&(work->tv_getwork), &tv_getwork, sizeof(struct timeval)); memcpy(&(work->tv_getwork_reply), &tv_getwork_reply, sizeof(struct timeval)); work->getwork_mode = GETWORK_MODE_TESTPOOL; calc_diff(work, 0); applog(LOG_DEBUG, "Pushing pooltest work to base pool"); tq_push(thr_info[stage_thr_id].q, work); total_getworks++; pool->getwork_requested++; ret = true; gettimeofday(&pool->tv_idle, NULL); } else { applog(LOG_DEBUG, "Successfully retrieved but FAILED to decipher work from pool %u %s", pool->pool_no, pool->rpc_url); free_work(work); } json_decref(val); if (pool->lp_url) goto out; /* Decipher the longpoll URL, if any, and store it in ->lp_url */ if (pool->hdr_path) { char *copy_start, *hdr_path; bool need_slash = false; hdr_path = pool->hdr_path; if (strstr(hdr_path, "://")) { pool->lp_url = hdr_path; hdr_path = NULL; } else { /* absolute path, on current server */ copy_start = (*hdr_path == '/') ? (hdr_path + 1) : hdr_path; if (pool->rpc_url[strlen(pool->rpc_url) - 1] != '/') need_slash = true; pool->lp_url = malloc(strlen(pool->rpc_url) + strlen(copy_start) + 2); if (!pool->lp_url) { applog(LOG_ERR, "Malloc failure in pool_active"); return false; } sprintf(pool->lp_url, "%s%s%s", pool->rpc_url, need_slash ? "/" : "", copy_start); } } else pool->lp_url = NULL; if (!pool->lp_started) { pool->lp_started = true; if (unlikely(pthread_create(&pool->longpoll_thread, NULL, longpoll_thread, (void *)pool))) quit(1, "Failed to create pool longpoll thread"); } } else { /* If we failed to parse a getwork, this could be a stratum * url without the prefix stratum+tcp:// so let's check it */ if (initiate_stratum(pool)) { pool->has_stratum = true; goto retry_stratum; } applog(LOG_DEBUG, "FAILED to retrieve work from pool %u %s", pool->pool_no, pool->rpc_url); if (!pinging) applog(LOG_WARNING, "Pool %u slow/down or URL or credentials invalid", pool->pool_no); } out: curl_easy_cleanup(curl); return ret; } static inline int cp_prio(void) { int prio; mutex_lock(&control_lock); prio = currentpool->prio; mutex_unlock(&control_lock); return prio; } static void pool_resus(struct pool *pool) { if (pool->prio < cp_prio() && pool_strategy == POOL_FAILOVER) { applog(LOG_WARNING, "Pool %d %s alive", pool->pool_no, pool->rpc_url); switch_pools(NULL); } else applog(LOG_INFO, "Pool %d %s resumed returning work", pool->pool_no, pool->rpc_url); } static struct work *hash_pop(void) { struct work *work = NULL, *tmp; int hc; mutex_lock(stgd_lock); while (!getq->frozen && !HASH_COUNT(staged_work)) pthread_cond_wait(&getq->cond, stgd_lock); hc = HASH_COUNT(staged_work); /* Find clone work if possible, to allow masters to be reused */ if (hc > staged_rollable) { HASH_ITER(hh, staged_work, work, tmp) { if (!work_rollable(work)) break; } } else work = staged_work; HASH_DEL(staged_work, work); if (work_rollable(work)) staged_rollable--; /* Signal the getwork scheduler to look for more work */ pthread_cond_signal(&gws_cond); /* Signal hash_pop again in case there are mutliple hash_pop waiters */ pthread_cond_signal(&getq->cond); mutex_unlock(stgd_lock); return work; } /* Clones work by rolling it if possible, and returning a clone instead of the * original work item which gets staged again to possibly be rolled again in * the future */ static struct work *clone_work(struct work *work) { int mrs = mining_threads + opt_queue - total_staged(); struct work *work_clone; bool cloned; if (mrs < 1) return work; cloned = false; work_clone = make_clone(work); while (mrs-- > 0 && can_roll(work) && should_roll(work)) { applog(LOG_DEBUG, "Pushing rolled converted work to stage thread"); stage_work(work_clone); roll_work(work); work_clone = make_clone(work); /* Roll it again to prevent duplicates should this be used * directly later on */ roll_work(work); cloned = true; } if (cloned) { stage_work(work); return work_clone; } free_work(work_clone); return work; } static void gen_hash(unsigned char *data, unsigned char *hash, int len) { unsigned char hash1[32]; sha2(data, len, hash1, false); sha2(hash1, 32, hash, false); } /* Diff 1 is a 256 bit unsigned integer of * 0x00000000ffff0000000000000000000000000000000000000000000000000000 * so we use a big endian 64 bit unsigned integer centred on the 5th byte to * cover a huge range of difficulty targets, though not all 256 bits' worth */ static void set_work_target(struct work *work, double diff) { unsigned char rtarget[32], target[32]; double d64; uint64_t *data64, h64; d64 = diffone; d64 /= diff; h64 = d64; if (h64) { memset(rtarget, 0, 32); data64 = (uint64_t *)(rtarget + 4); *data64 = htobe64(h64); swab256(target, rtarget); } else { /* Support for the classic all FFs just-below-1 diff */ memset(target, 0xff, 28); memset(&target[28], 0, 4); } if (opt_debug) { char *htarget = bin2hex(target, 32); applog(LOG_DEBUG, "Generated target %s", htarget); free(htarget); } memcpy(work->target, target, 32); } /* Generates stratum based work based on the most recent notify information * from the pool. This will keep generating work while a pool is down so we use * other means to detect when the pool has died in stratum_thread */ static void gen_stratum_work(struct pool *pool, struct work *work) { unsigned char *coinbase, merkle_root[32], merkle_sha[64], *merkle_hash; int len, cb1_len, n1_len, cb2_len, i; uint32_t *data32, *swap32; char *header; mutex_lock(&pool->pool_lock); /* Generate coinbase */ work->nonce2 = bin2hex((const unsigned char *)&pool->nonce2, pool->n2size); pool->nonce2++; cb1_len = strlen(pool->swork.coinbase1) / 2; n1_len = strlen(pool->nonce1) / 2; cb2_len = strlen(pool->swork.coinbase2) / 2; len = cb1_len + n1_len + pool->n2size + cb2_len; coinbase = alloca(len + 1); hex2bin(coinbase, pool->swork.coinbase1, cb1_len); hex2bin(coinbase + cb1_len, pool->nonce1, n1_len); hex2bin(coinbase + cb1_len + n1_len, work->nonce2, pool->n2size); hex2bin(coinbase + cb1_len + n1_len + pool->n2size, pool->swork.coinbase2, cb2_len); /* Generate merkle root */ gen_hash(coinbase, merkle_root, len); memcpy(merkle_sha, merkle_root, 32); for (i = 0; i < pool->swork.merkles; i++) { unsigned char merkle_bin[32]; hex2bin(merkle_bin, pool->swork.merkle[i], 32); memcpy(merkle_sha + 32, merkle_bin, 32); gen_hash(merkle_sha, merkle_root, 64); memcpy(merkle_sha, merkle_root, 32); } data32 = (uint32_t *)merkle_sha; swap32 = (uint32_t *)merkle_root; for (i = 0; i < 32 / 4; i++) swap32[i] = swab32(data32[i]); merkle_hash = (unsigned char *)bin2hex((const unsigned char *)merkle_root, 32); header = strdup(pool->swork.bbversion); header = realloc_strcat(header, pool->swork.prev_hash); header = realloc_strcat(header, (char *)merkle_hash); header = realloc_strcat(header, pool->swork.ntime); header = realloc_strcat(header, pool->swork.nbit); header = realloc_strcat(header, "00000000"); /* nonce */ header = realloc_strcat(header, workpadding); /* Store the stratum work diff to check it still matches the pool's * stratum diff when submitting shares */ work->sdiff = pool->swork.diff; /* Copy parameters required for share submission */ work->job_id = strdup(pool->swork.job_id); work->ntime = strdup(pool->swork.ntime); mutex_unlock(&pool->pool_lock); applog(LOG_DEBUG, "Generated stratum merkle %s", merkle_hash); applog(LOG_DEBUG, "Generated stratum header %s", header); applog(LOG_DEBUG, "Work job_id %s nonce2 %s ntime %s", work->job_id, work->nonce2, work->ntime); free(merkle_hash); /* Convert hex data to binary data for work */ if (unlikely(!hex2bin(work->data, header, 128))) quit(1, "Failed to convert header to data in gen_stratum_work"); free(header); calc_midstate(work); set_work_target(work, work->sdiff); local_work++; work->pool = pool; work->stratum = true; work->blk.nonce = 0; work->id = total_work++; work->longpoll = false; work->getwork_mode = GETWORK_MODE_STRATUM; work->work_block = work_block; calc_diff(work, work->sdiff); gettimeofday(&work->tv_staged, NULL); } static struct work *get_work(struct thr_info *thr, const int thr_id) { struct work *work = NULL; /* Tell the watchdog thread this thread is waiting on getwork and * should not be restarted */ thread_reportout(thr); applog(LOG_DEBUG, "Popping work from get queue to get work"); while (!work) { work = hash_pop(); if (stale_work(work, false)) { discard_work(work); work = NULL; wake_gws(); } } applog(LOG_DEBUG, "Got work from get queue to get work for thread %d", thr_id); work->thr_id = thr_id; thread_reportin(thr); work->mined = true; return work; } void submit_work_async(struct work *work_in, struct timeval *tv_work_found) { struct work *work = copy_work(work_in); pthread_t submit_thread; if (tv_work_found) memcpy(&(work->tv_work_found), tv_work_found, sizeof(struct timeval)); applog(LOG_DEBUG, "Pushing submit work to work thread"); if (unlikely(pthread_create(&submit_thread, NULL, submit_work_thread, (void *)work))) quit(1, "Failed to create submit_work_thread"); } static bool hashtest(struct thr_info *thr, struct work *work) { uint32_t *data32 = (uint32_t *)(work->data); unsigned char swap[128]; uint32_t *swap32 = (uint32_t *)swap; unsigned char hash1[32]; unsigned char hash2[32]; uint32_t *hash2_32 = (uint32_t *)hash2; int i; for (i = 0; i < 80 / 4; i++) swap32[i] = swab32(data32[i]); sha2(swap, 80, hash1, false); sha2(hash1, 32, hash2, false); for (i = 0; i < 32 / 4; i++) hash2_32[i] = swab32(hash2_32[i]); memcpy((void*)work->hash, hash2, 32); if (hash2_32[7] != 0) { applog(LOG_WARNING, "%s%d: invalid nonce - HW error", thr->cgpu->api->name, thr->cgpu->device_id); mutex_lock(&stats_lock); hw_errors++; thr->cgpu->hw_errors++; mutex_unlock(&stats_lock); if (thr->cgpu->api->hw_error) thr->cgpu->api->hw_error(thr); return false; } bool test = fulltest(work->hash, work->target); if (!test) { applog(LOG_INFO, "Share below target"); /* Check the diff of the share, even if it didn't reach the * target, just to set the best share value if it's higher. */ if (opt_scrypt) scrypt_diff(work); else share_diff(work); } return test; } static bool test_nonce(struct thr_info *thr, struct work *work, uint32_t nonce) { if (opt_scrypt) { uint32_t *work_nonce = (uint32_t *)(work->data + 64 + 12); *work_nonce = nonce; return true; } work->data[64 + 12 + 0] = (nonce >> 0) & 0xff; work->data[64 + 12 + 1] = (nonce >> 8) & 0xff; work->data[64 + 12 + 2] = (nonce >> 16) & 0xff; work->data[64 + 12 + 3] = (nonce >> 24) & 0xff; return hashtest(thr, work); } void submit_nonce(struct thr_info *thr, struct work *work, uint32_t nonce) { struct timeval tv_work_found; gettimeofday(&tv_work_found, NULL); mutex_lock(&stats_lock); total_diff1++; thr->cgpu->diff1++; work->pool->diff1++; mutex_unlock(&stats_lock); /* Do one last check before attempting to submit the work */ /* Side effect: sets work->data for us */ if (!test_nonce(thr, work, nonce)) return; submit_work_async(work, &tv_work_found); } static inline bool abandon_work(struct work *work, struct timeval *wdiff, uint64_t hashes) { if (wdiff->tv_sec > opt_scantime || work->blk.nonce >= MAXTHREADS - hashes || hashes >= 0xfffffffe || stale_work(work, false)) return true; return false; } static void mt_disable(struct thr_info *mythr, const int thr_id, struct device_api *api) { applog(LOG_WARNING, "Thread %d being disabled", thr_id); mythr->rolling = mythr->cgpu->rolling = 0; applog(LOG_DEBUG, "Popping wakeup ping in miner thread"); thread_reportout(mythr); do { tq_pop(mythr->q, NULL); /* Ignore ping that's popped */ } while (mythr->pause); thread_reportin(mythr); applog(LOG_WARNING, "Thread %d being re-enabled", thr_id); if (api->thread_enable) api->thread_enable(mythr); } void *miner_thread(void *userdata) { struct thr_info *mythr = userdata; const int thr_id = mythr->id; struct cgpu_info *cgpu = mythr->cgpu; struct device_api *api = cgpu->api; struct cgminer_stats *dev_stats = &(cgpu->cgminer_stats); struct cgminer_stats *pool_stats; struct timeval getwork_start; /* Try to cycle approximately 5 times before each log update */ const long cycle = opt_log_interval / 5 ? : 1; struct timeval tv_start, tv_end, tv_workstart, tv_lastupdate; struct timeval diff, sdiff, wdiff = {0, 0}; uint32_t max_nonce = api->can_limit_work ? api->can_limit_work(mythr) : 0xffffffff; int64_t hashes_done = 0; int64_t hashes; struct work *work; const bool primary = (!mythr->device_thread) || mythr->primary_thread; pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL); char threadname[20]; snprintf(threadname,20,"miner %d",thr_id); RenameThread(threadname); gettimeofday(&getwork_start, NULL); if (api->thread_init && !api->thread_init(mythr)) { dev_error(cgpu, REASON_THREAD_FAIL_INIT); goto out; } thread_reportout(mythr); applog(LOG_DEBUG, "Popping ping in miner thread"); tq_pop(mythr->q, NULL); /* Wait for a ping to start */ sdiff.tv_sec = sdiff.tv_usec = 0; gettimeofday(&tv_lastupdate, NULL); while (1) { mythr->work_restart = false; work = get_work(mythr, thr_id); cgpu->new_work = true; gettimeofday(&tv_workstart, NULL); work->blk.nonce = 0; cgpu->max_hashes = 0; if (api->prepare_work && !api->prepare_work(mythr, work)) { applog(LOG_ERR, "work prepare failed, exiting " "mining thread %d", thr_id); break; } do { gettimeofday(&tv_start, NULL); timersub(&tv_start, &getwork_start, &getwork_start); timeradd(&getwork_start, &(dev_stats->getwork_wait), &(dev_stats->getwork_wait)); if (timercmp(&getwork_start, &(dev_stats->getwork_wait_max), >)) { dev_stats->getwork_wait_max.tv_sec = getwork_start.tv_sec; dev_stats->getwork_wait_max.tv_usec = getwork_start.tv_usec; } if (timercmp(&getwork_start, &(dev_stats->getwork_wait_min), <)) { dev_stats->getwork_wait_min.tv_sec = getwork_start.tv_sec; dev_stats->getwork_wait_min.tv_usec = getwork_start.tv_usec; } dev_stats->getwork_calls++; pool_stats = &(work->pool->cgminer_stats); timeradd(&getwork_start, &(pool_stats->getwork_wait), &(pool_stats->getwork_wait)); if (timercmp(&getwork_start, &(pool_stats->getwork_wait_max), >)) { pool_stats->getwork_wait_max.tv_sec = getwork_start.tv_sec; pool_stats->getwork_wait_max.tv_usec = getwork_start.tv_usec; } if (timercmp(&getwork_start, &(pool_stats->getwork_wait_min), <)) { pool_stats->getwork_wait_min.tv_sec = getwork_start.tv_sec; pool_stats->getwork_wait_min.tv_usec = getwork_start.tv_usec; } pool_stats->getwork_calls++; gettimeofday(&(work->tv_work_start), NULL); thread_reportin(mythr); hashes = api->scanhash(mythr, work, work->blk.nonce + max_nonce); thread_reportin(mythr); gettimeofday(&getwork_start, NULL); if (unlikely(hashes == -1)) { applog(LOG_ERR, "%s %d failure, disabling!", api->name, cgpu->device_id); cgpu->deven = DEV_DISABLED; dev_error(cgpu, REASON_THREAD_ZERO_HASH); mt_disable(mythr, thr_id, api); } hashes_done += hashes; if (hashes > cgpu->max_hashes) cgpu->max_hashes = hashes; gettimeofday(&tv_end, NULL); timersub(&tv_end, &tv_start, &diff); sdiff.tv_sec += diff.tv_sec; sdiff.tv_usec += diff.tv_usec; if (sdiff.tv_usec > 1000000) { ++sdiff.tv_sec; sdiff.tv_usec -= 1000000; } timersub(&tv_end, &tv_workstart, &wdiff); if (unlikely((long)sdiff.tv_sec < cycle)) { int mult; if (likely(!api->can_limit_work || max_nonce == 0xffffffff)) continue; mult = 1000000 / ((sdiff.tv_usec + 0x400) / 0x400) + 0x10; mult *= cycle; if (max_nonce > (0xffffffff * 0x400) / mult) max_nonce = 0xffffffff; else max_nonce = (max_nonce * mult) / 0x400; } else if (unlikely(sdiff.tv_sec > cycle) && api->can_limit_work) max_nonce = max_nonce * cycle / sdiff.tv_sec; else if (unlikely(sdiff.tv_usec > 100000) && api->can_limit_work) max_nonce = max_nonce * 0x400 / (((cycle * 1000000) + sdiff.tv_usec) / (cycle * 1000000 / 0x400)); timersub(&tv_end, &tv_lastupdate, &diff); if (diff.tv_sec >= opt_log_interval) { hashmeter(thr_id, &diff, hashes_done); hashes_done = 0; tv_lastupdate = tv_end; } if (unlikely(mythr->work_restart)) { /* Apart from device_thread 0, we stagger the * starting of every next thread to try and get * all devices busy before worrying about * getting work for their extra threads */ if (!primary) { struct timespec rgtp; rgtp.tv_sec = 0; rgtp.tv_nsec = 250 * mythr->device_thread * 1000000; nanosleep(&rgtp, NULL); } break; } if (unlikely(mythr->pause || cgpu->deven != DEV_ENABLED)) mt_disable(mythr, thr_id, api); sdiff.tv_sec = sdiff.tv_usec = 0; } while (!abandon_work(work, &wdiff, cgpu->max_hashes)); free_work(work); } out: if (api->thread_shutdown) api->thread_shutdown(mythr); thread_reportin(mythr); applog(LOG_ERR, "Thread %d failure, exiting", thr_id); tq_freeze(mythr->q); return NULL; } enum { STAT_SLEEP_INTERVAL = 1, STAT_CTR_INTERVAL = 10000000, FAILURE_INTERVAL = 30, }; /* Stage another work item from the work returned in a longpoll */ static void convert_to_work(json_t *val, int rolltime, struct pool *pool, struct timeval *tv_lp, struct timeval *tv_lp_reply) { struct work *work; bool rc; work = make_work(); rc = work_decode(pool, work, val); if (unlikely(!rc)) { applog(LOG_ERR, "Could not convert longpoll data to work"); free_work(work); return; } total_getworks++; pool->getwork_requested++; work->pool = pool; work->rolltime = rolltime; memcpy(&(work->tv_getwork), tv_lp, sizeof(struct timeval)); memcpy(&(work->tv_getwork_reply), tv_lp_reply, sizeof(struct timeval)); calc_diff(work, 0); if (pool->enabled == POOL_REJECTING) work->mandatory = true; if (pool->has_gbt) gen_gbt_work(pool, work); work->longpoll = true; work->getwork_mode = GETWORK_MODE_LP; /* We'll be checking this work item twice, but we already know it's * from a new block so explicitly force the new block detection now * rather than waiting for it to hit the stage thread. This also * allows testwork to know whether LP discovered the block or not. */ test_work_current(work); /* Don't use backup LPs as work if we have failover-only enabled. Use * the longpoll work from a pool that has been rejecting shares as a * way to detect when the pool has recovered. */ if (pool != current_pool() && opt_fail_only && pool->enabled != POOL_REJECTING) { free_work(work); return; } work = clone_work(work); applog(LOG_DEBUG, "Pushing converted work to stage thread"); stage_work(work); applog(LOG_DEBUG, "Converted longpoll data to work"); } /* If we want longpoll, enable it for the chosen default pool, or, if * the pool does not support longpoll, find the first one that does * and use its longpoll support */ static struct pool *select_longpoll_pool(struct pool *cp) { int i; if (cp->hdr_path || cp->has_gbt) return cp; for (i = 0; i < total_pools; i++) { struct pool *pool = pools[i]; if (pool->has_stratum || pool->hdr_path) return pool; } return NULL; } /* This will make the longpoll thread wait till it's the current pool, or it * has been flagged as rejecting, before attempting to open any connections. */ static void wait_lpcurrent(struct pool *pool) { if (cnx_needed(pool)) return; while (pool != current_pool() && pool_strategy != POOL_LOADBALANCE && pool_strategy != POOL_BALANCE) { mutex_lock(&lp_lock); pthread_cond_wait(&lp_cond, &lp_lock); mutex_unlock(&lp_lock); } } static void *longpoll_thread(void *userdata) { struct pool *cp = (struct pool *)userdata; /* This *pool is the source of the actual longpoll, not the pool we've * tied it to */ struct pool *pool = NULL; struct timeval start, reply, end; CURL *curl = NULL; int failures = 0; char lpreq[1024]; char *lp_url; int rolltime; RenameThread("longpoll"); curl = curl_easy_init(); if (unlikely(!curl)) { applog(LOG_ERR, "CURL initialisation failed"); return NULL; } retry_pool: pool = select_longpoll_pool(cp); if (!pool) { applog(LOG_WARNING, "No suitable long-poll found for %s", cp->rpc_url); while (!pool) { sleep(60); pool = select_longpoll_pool(cp); } } if (pool->has_stratum) { applog(LOG_WARNING, "Block change for %s detection via %s stratum", cp->rpc_url, pool->rpc_url); goto out; } /* Any longpoll from any pool is enough for this to be true */ have_longpoll = true; wait_lpcurrent(cp); if (pool->has_gbt) { lp_url = pool->rpc_url; applog(LOG_WARNING, "GBT longpoll ID activated for %s", lp_url); } else { strcpy(lpreq, getwork_req); lp_url = pool->lp_url; if (cp == pool) applog(LOG_WARNING, "Long-polling activated for %s", lp_url); else applog(LOG_WARNING, "Long-polling activated for %s via %s", cp->rpc_url, lp_url); } while (42) { json_t *val, *soval; wait_lpcurrent(cp); gettimeofday(&start, NULL); /* Update the longpollid every time, but do it under lock to * avoid races */ if (pool->has_gbt) { mutex_lock(&pool->gbt_lock); sprintf(lpreq, "{\"id\": 0, \"method\": \"getblocktemplate\", \"params\": " "[{\"capabilities\": [\"coinbasetxn\", \"workid\", \"coinbase/append\"], " "\"longpollid\": \"%s\"}]}\n", pool->longpollid); mutex_unlock(&pool->gbt_lock); } /* Longpoll connections can be persistent for a very long time * and any number of issues could have come up in the meantime * so always establish a fresh connection instead of relying on * a persistent one. */ curl_easy_setopt(curl, CURLOPT_FRESH_CONNECT, 1); val = json_rpc_call(curl, lp_url, pool->rpc_userpass, lpreq, false, true, &rolltime, pool, false); gettimeofday(&reply, NULL); if (likely(val)) { soval = json_object_get(json_object_get(val, "result"), "submitold"); if (soval) pool->submit_old = json_is_true(soval); else pool->submit_old = false; convert_to_work(val, rolltime, pool, &start, &reply); failures = 0; json_decref(val); } else { /* Some pools regularly drop the longpoll request so * only see this as longpoll failure if it happens * immediately and just restart it the rest of the * time. */ gettimeofday(&end, NULL); if (end.tv_sec - start.tv_sec > 30) continue; if (failures == 1) applog(LOG_WARNING, "longpoll failed for %s, retrying every 30s", lp_url); sleep(30); } if (pool != cp) { pool = select_longpoll_pool(cp); if (pool->has_stratum) { applog(LOG_WARNING, "Block change for %s detection via %s stratum", cp->rpc_url, pool->rpc_url); break; } if (unlikely(!pool)) goto retry_pool; } if (unlikely(pool->removed)) break; } out: curl_easy_cleanup(curl); return NULL; } void reinit_device(struct cgpu_info *cgpu) { if (cgpu->api->reinit_device) cgpu->api->reinit_device(cgpu); } static struct timeval rotate_tv; /* We reap curls if they are unused for over a minute */ static void reap_curl(struct pool *pool) { struct curl_ent *ent, *iter; struct timeval now; int reaped = 0; gettimeofday(&now, NULL); mutex_lock(&pool->pool_lock); list_for_each_entry_safe(ent, iter, &pool->curlring, node) { if (pool->curls < 2) break; if (now.tv_sec - ent->tv.tv_sec > 300) { reaped++; pool->curls--; list_del(&ent->node); curl_easy_cleanup(ent->curl); free(ent); } } mutex_unlock(&pool->pool_lock); if (reaped) applog(LOG_DEBUG, "Reaped %d curl%s from pool %d", reaped, reaped > 1 ? "s" : "", pool->pool_no); } static void *watchpool_thread(void __maybe_unused *userdata) { int intervals = 0; pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL); RenameThread("watchpool"); while (42) { struct timeval now; int i; if (++intervals > 20) intervals = 0; gettimeofday(&now, NULL); for (i = 0; i < total_pools; i++) { struct pool *pool = pools[i]; if (!opt_benchmark) reap_curl(pool); /* Get a rolling utility per pool over 10 mins */ if (intervals > 19) { int shares = pool->diff1 - pool->last_shares; pool->last_shares = pool->diff1; pool->utility = (pool->utility + (double)shares * 0.63) / 1.63; pool->shares = pool->utility; } if ((pool->enabled == POOL_DISABLED || pool->has_stratum) && pool->probed) continue; /* Test pool is idle once every minute */ if (pool->idle && now.tv_sec - pool->tv_idle.tv_sec > 30) { gettimeofday(&pool->tv_idle, NULL); if (pool_active(pool, true) && pool_tclear(pool, &pool->idle)) pool_resus(pool); } } if (pool_strategy == POOL_ROTATE && now.tv_sec - rotate_tv.tv_sec > 60 * opt_rotate_period) { gettimeofday(&rotate_tv, NULL); switch_pools(NULL); } sleep(30); } return NULL; } /* Makes sure the hashmeter keeps going even if mining threads stall, updates * the screen at regular intervals, and restarts threads if they appear to have * died. */ #define WATCHDOG_INTERVAL 3 #define WATCHDOG_SICK_TIME 60 #define WATCHDOG_DEAD_TIME 600 #define WATCHDOG_SICK_COUNT (WATCHDOG_SICK_TIME/WATCHDOG_INTERVAL) #define WATCHDOG_DEAD_COUNT (WATCHDOG_DEAD_TIME/WATCHDOG_INTERVAL) static void *watchdog_thread(void __maybe_unused *userdata) { const unsigned int interval = WATCHDOG_INTERVAL; struct timeval zero_tv; pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL); RenameThread("watchdog"); memset(&zero_tv, 0, sizeof(struct timeval)); gettimeofday(&rotate_tv, NULL); while (1) { int i; struct timeval now; sleep(interval); discard_stale(); hashmeter(-1, &zero_tv, 0); #ifdef HAVE_CURSES if (curses_active_locked()) { change_logwinsize(); curses_print_status(); for (i = 0; i < mining_threads; i++) curses_print_devstatus(i); touchwin(statuswin); wrefresh(statuswin); touchwin(logwin); wrefresh(logwin); unlock_curses(); } #endif gettimeofday(&now, NULL); if (!sched_paused && !should_run()) { applog(LOG_WARNING, "Pausing execution as per stop time %02d:%02d scheduled", schedstop.tm.tm_hour, schedstop.tm.tm_min); if (!schedstart.enable) { quit(0, "Terminating execution as planned"); break; } applog(LOG_WARNING, "Will restart execution as scheduled at %02d:%02d", schedstart.tm.tm_hour, schedstart.tm.tm_min); sched_paused = true; for (i = 0; i < mining_threads; i++) { struct thr_info *thr; thr = &thr_info[i]; thr->pause = true; } } else if (sched_paused && should_run()) { applog(LOG_WARNING, "Restarting execution as per start time %02d:%02d scheduled", schedstart.tm.tm_hour, schedstart.tm.tm_min); if (schedstop.enable) applog(LOG_WARNING, "Will pause execution as scheduled at %02d:%02d", schedstop.tm.tm_hour, schedstop.tm.tm_min); sched_paused = false; for (i = 0; i < mining_threads; i++) { struct thr_info *thr; thr = &thr_info[i]; /* Don't touch disabled devices */ if (thr->cgpu->deven == DEV_DISABLED) continue; thr->pause = false; tq_push(thr->q, &ping); } } for (i = 0; i < total_devices; ++i) { struct cgpu_info *cgpu = devices[i]; struct thr_info *thr = cgpu->thr[0]; enum dev_enable *denable; char dev_str[8]; int gpu; if (cgpu->api->get_stats) cgpu->api->get_stats(cgpu); gpu = cgpu->device_id; denable = &cgpu->deven; sprintf(dev_str, "%s%d", cgpu->api->name, gpu); #ifdef HAVE_ADL if (adl_active && cgpu->has_adl) gpu_autotune(gpu, denable); if (opt_debug && cgpu->has_adl) { int engineclock = 0, memclock = 0, activity = 0, fanspeed = 0, fanpercent = 0, powertune = 0; float temp = 0, vddc = 0; if (gpu_stats(gpu, &temp, &engineclock, &memclock, &vddc, &activity, &fanspeed, &fanpercent, &powertune)) applog(LOG_DEBUG, "%.1f C F: %d%%(%dRPM) E: %dMHz M: %dMhz V: %.3fV A: %d%% P: %d%%", temp, fanpercent, fanspeed, engineclock, memclock, vddc, activity, powertune); } #endif /* Thread is waiting on getwork or disabled */ if (thr->getwork || *denable == DEV_DISABLED) continue; #ifdef WANT_CPUMINE if (!strcmp(cgpu->api->dname, "cpu")) continue; #endif if (cgpu->status != LIFE_WELL && (now.tv_sec - thr->last.tv_sec < WATCHDOG_SICK_TIME)) { if (cgpu->status != LIFE_INIT) applog(LOG_ERR, "%s: Recovered, declaring WELL!", dev_str); cgpu->status = LIFE_WELL; cgpu->device_last_well = time(NULL); } else if (cgpu->status == LIFE_WELL && (now.tv_sec - thr->last.tv_sec > WATCHDOG_SICK_TIME)) { thr->rolling = cgpu->rolling = 0; cgpu->status = LIFE_SICK; applog(LOG_ERR, "%s: Idle for more than 60 seconds, declaring SICK!", dev_str); gettimeofday(&thr->sick, NULL); dev_error(cgpu, REASON_DEV_SICK_IDLE_60); #ifdef HAVE_ADL if (adl_active && cgpu->has_adl && gpu_activity(gpu) > 50) { applog(LOG_ERR, "GPU still showing activity suggesting a hard hang."); applog(LOG_ERR, "Will not attempt to auto-restart it."); } else #endif if (opt_restart) { applog(LOG_ERR, "%s: Attempting to restart", dev_str); reinit_device(cgpu); } } else if (cgpu->status == LIFE_SICK && (now.tv_sec - thr->last.tv_sec > WATCHDOG_DEAD_TIME)) { cgpu->status = LIFE_DEAD; applog(LOG_ERR, "%s: Not responded for more than 10 minutes, declaring DEAD!", dev_str); gettimeofday(&thr->sick, NULL); dev_error(cgpu, REASON_DEV_DEAD_IDLE_600); } else if (now.tv_sec - thr->sick.tv_sec > 60 && (cgpu->status == LIFE_SICK || cgpu->status == LIFE_DEAD)) { /* Attempt to restart a GPU that's sick or dead once every minute */ gettimeofday(&thr->sick, NULL); #ifdef HAVE_ADL if (adl_active && cgpu->has_adl && gpu_activity(gpu) > 50) { /* Again do not attempt to restart a device that may have hard hung */ } else #endif if (opt_restart) reinit_device(cgpu); } } } return NULL; } static void log_print_status(struct cgpu_info *cgpu) { char logline[255]; get_statline(logline, cgpu); applog(LOG_WARNING, "%s", logline); } static void print_summary(void) { struct timeval diff; int hours, mins, secs, i; double utility, efficiency = 0.0, displayed_hashes, work_util; bool mhash_base = true; timersub(&total_tv_end, &total_tv_start, &diff); hours = diff.tv_sec / 3600; mins = (diff.tv_sec % 3600) / 60; secs = diff.tv_sec % 60; utility = total_accepted / total_secs * 60; efficiency = total_getworks ? total_accepted * 100.0 / total_getworks : 0.0; work_util = total_diff1 / total_secs * 60; applog(LOG_WARNING, "\nSummary of runtime statistics:\n"); applog(LOG_WARNING, "Started at %s", datestamp); if (total_pools == 1) applog(LOG_WARNING, "Pool: %s", pools[0]->rpc_url); #ifdef WANT_CPUMINE if (opt_n_threads) applog(LOG_WARNING, "CPU hasher algorithm used: %s", algo_names[opt_algo]); #endif applog(LOG_WARNING, "Runtime: %d hrs : %d mins : %d secs", hours, mins, secs); displayed_hashes = total_mhashes_done / total_secs; if (displayed_hashes < 1) { displayed_hashes *= 1000; mhash_base = false; } applog(LOG_WARNING, "Average hashrate: %.1f %shash/s", displayed_hashes, mhash_base? "Mega" : "Kilo"); applog(LOG_WARNING, "Solved blocks: %d", found_blocks); applog(LOG_WARNING, "Best share difficulty: %s", best_share); applog(LOG_WARNING, "Queued work requests: %d", total_getworks); applog(LOG_WARNING, "Share submissions: %d", total_accepted + total_rejected); applog(LOG_WARNING, "Accepted shares: %d", total_accepted); applog(LOG_WARNING, "Rejected shares: %d", total_rejected); applog(LOG_WARNING, "Accepted difficulty shares: %1.f", total_diff_accepted); applog(LOG_WARNING, "Rejected difficulty shares: %1.f", total_diff_rejected); if (total_accepted || total_rejected) applog(LOG_WARNING, "Reject ratio: %.1f%%", (double)(total_rejected * 100) / (double)(total_accepted + total_rejected)); applog(LOG_WARNING, "Hardware errors: %d", hw_errors); applog(LOG_WARNING, "Efficiency (accepted / queued): %.0f%%", efficiency); applog(LOG_WARNING, "Utility (accepted shares / min): %.2f/min", utility); applog(LOG_WARNING, "Work Utility (diff1 shares solved / min): %.2f/min\n", work_util); applog(LOG_WARNING, "Discarded work due to new blocks: %d", total_discarded); applog(LOG_WARNING, "Stale submissions discarded due to new blocks: %d", total_stale); applog(LOG_WARNING, "Unable to get work from server occasions: %d", total_go); applog(LOG_WARNING, "Work items generated locally: %d", local_work); applog(LOG_WARNING, "Submitting work remotely delay occasions: %d", total_ro); applog(LOG_WARNING, "New blocks detected on network: %d\n", new_blocks); if (total_pools > 1) { for (i = 0; i < total_pools; i++) { struct pool *pool = pools[i]; applog(LOG_WARNING, "Pool: %s", pool->rpc_url); if (pool->solved) applog(LOG_WARNING, "SOLVED %d BLOCK%s!", pool->solved, pool->solved > 1 ? "S" : ""); applog(LOG_WARNING, " Queued work requests: %d", pool->getwork_requested); applog(LOG_WARNING, " Share submissions: %d", pool->accepted + pool->rejected); applog(LOG_WARNING, " Accepted shares: %d", pool->accepted); applog(LOG_WARNING, " Rejected shares: %d", pool->rejected); applog(LOG_WARNING, " Accepted difficulty shares: %1.f", pool->diff_accepted); applog(LOG_WARNING, " Rejected difficulty shares: %1.f", pool->diff_rejected); if (pool->accepted || pool->rejected) applog(LOG_WARNING, " Reject ratio: %.1f%%", (double)(pool->rejected * 100) / (double)(pool->accepted + pool->rejected)); efficiency = pool->getwork_requested ? pool->accepted * 100.0 / pool->getwork_requested : 0.0; applog(LOG_WARNING, " Efficiency (accepted / queued): %.0f%%", efficiency); applog(LOG_WARNING, " Discarded work due to new blocks: %d", pool->discarded_work); applog(LOG_WARNING, " Stale submissions discarded due to new blocks: %d", pool->stale_shares); applog(LOG_WARNING, " Unable to get work from server occasions: %d", pool->getfail_occasions); applog(LOG_WARNING, " Submitting work remotely delay occasions: %d\n", pool->remotefail_occasions); } } applog(LOG_WARNING, "Summary of per device statistics:\n"); for (i = 0; i < total_devices; ++i) log_print_status(devices[i]); if (opt_shares) applog(LOG_WARNING, "Mined %d accepted shares of %d requested\n", total_accepted, opt_shares); fflush(stdout); fflush(stderr); if (opt_shares > total_accepted) applog(LOG_WARNING, "WARNING - Mined only %d shares of %d requested.", total_accepted, opt_shares); } static void clean_up(void) { #ifdef HAVE_OPENCL clear_adl(nDevs); #endif #ifdef HAVE_LIBUSB libusb_exit(NULL); #endif gettimeofday(&total_tv_end, NULL); #ifdef HAVE_CURSES disable_curses(); #endif if (!opt_realquiet && successful_connect) print_summary(); if (opt_n_threads) free(cpus); curl_global_cleanup(); } void quit(int status, const char *format, ...) { va_list ap; clean_up(); if (format) { va_start(ap, format); vfprintf(stderr, format, ap); va_end(ap); } fprintf(stderr, "\n"); fflush(stderr); #if defined(unix) if (forkpid > 0) { kill(forkpid, SIGTERM); forkpid = 0; } #endif exit(status); } #ifdef HAVE_CURSES char *curses_input(const char *query) { char *input; echo(); input = malloc(255); if (!input) quit(1, "Failed to malloc input"); leaveok(logwin, false); wlogprint("%s:\n", query); wgetnstr(logwin, input, 255); if (!strlen(input)) strcpy(input, "-1"); leaveok(logwin, true); noecho(); return input; } #endif void add_pool_details(struct pool *pool, bool live, char *url, char *user, char *pass) { url = get_proxy(url, pool); pool->rpc_url = url; pool->rpc_user = user; pool->rpc_pass = pass; pool->rpc_userpass = malloc(strlen(pool->rpc_user) + strlen(pool->rpc_pass) + 2); if (!pool->rpc_userpass) quit(1, "Failed to malloc userpass"); sprintf(pool->rpc_userpass, "%s:%s", pool->rpc_user, pool->rpc_pass); enable_pool(pool); /* Prevent noise on startup */ pool->lagging = true; /* Test the pool is not idle if we're live running, otherwise * it will be tested separately */ if (live && !pool_active(pool, false)) { gettimeofday(&pool->tv_idle, NULL); pool->idle = true; } } #ifdef HAVE_CURSES static bool input_pool(bool live) { char *url = NULL, *user = NULL, *pass = NULL; struct pool *pool; bool ret = false; immedok(logwin, true); wlogprint("Input server details.\n"); url = curses_input("URL"); if (!url) goto out; user = curses_input("Username"); if (!user) goto out; pass = curses_input("Password"); if (!pass) goto out; pool = add_pool(); if (!detect_stratum(pool, url) && strncmp(url, "http://", 7) && strncmp(url, "https://", 8)) { char *httpinput; httpinput = malloc(256); if (!httpinput) quit(1, "Failed to malloc httpinput"); strcpy(httpinput, "http://"); strncat(httpinput, url, 248); free(url); url = httpinput; } add_pool_details(pool, live, url, user, pass); ret = true; out: immedok(logwin, false); if (!ret) { if (url) free(url); if (user) free(user); if (pass) free(pass); } return ret; } #endif #if defined(unix) static void fork_monitor() { // Make a pipe: [readFD, writeFD] int pfd[2]; int r = pipe(pfd); if (r < 0) { perror("pipe - failed to create pipe for --monitor"); exit(1); } // Make stderr write end of pipe fflush(stderr); r = dup2(pfd[1], 2); if (r < 0) { perror("dup2 - failed to alias stderr to write end of pipe for --monitor"); exit(1); } r = close(pfd[1]); if (r < 0) { perror("close - failed to close write end of pipe for --monitor"); exit(1); } // Don't allow a dying monitor to kill the main process sighandler_t sr0 = signal(SIGPIPE, SIG_IGN); sighandler_t sr1 = signal(SIGPIPE, SIG_IGN); if (SIG_ERR == sr0 || SIG_ERR == sr1) { perror("signal - failed to edit signal mask for --monitor"); exit(1); } // Fork a child process forkpid = fork(); if (forkpid < 0) { perror("fork - failed to fork child process for --monitor"); exit(1); } // Child: launch monitor command if (0 == forkpid) { // Make stdin read end of pipe r = dup2(pfd[0], 0); if (r < 0) { perror("dup2 - in child, failed to alias read end of pipe to stdin for --monitor"); exit(1); } close(pfd[0]); if (r < 0) { perror("close - in child, failed to close read end of pipe for --monitor"); exit(1); } // Launch user specified command execl("/bin/bash", "/bin/bash", "-c", opt_stderr_cmd, (char*)NULL); perror("execl - in child failed to exec user specified command for --monitor"); exit(1); } // Parent: clean up unused fds and bail r = close(pfd[0]); if (r < 0) { perror("close - failed to close read end of pipe for --monitor"); exit(1); } } #endif // defined(unix) #ifdef HAVE_CURSES void enable_curses(void) { int x,y; lock_curses(); if (curses_active) { unlock_curses(); return; } mainwin = initscr(); getmaxyx(mainwin, y, x); statuswin = newwin(logstart, x, 0, 0); leaveok(statuswin, true); logwin = newwin(y - logcursor, 0, logcursor, 0); idlok(logwin, true); scrollok(logwin, true); leaveok(logwin, true); cbreak(); noecho(); curses_active = true; statusy = logstart; unlock_curses(); } #endif /* TODO: fix need a dummy CPU device_api even if no support for CPU mining */ #ifndef WANT_CPUMINE struct device_api cpu_api; struct device_api cpu_api = { .name = "CPU", }; #endif #ifdef USE_BITFORCE extern struct device_api bitforce_api; #endif #ifdef USE_ICARUS extern struct device_api icarus_api; #endif #ifdef USE_MODMINER extern struct device_api modminer_api; #endif #ifdef USE_ZTEX extern struct device_api ztex_api; #endif static int cgminer_id_count = 0; void enable_device(struct cgpu_info *cgpu) { cgpu->deven = DEV_ENABLED; devices[cgpu->cgminer_id = cgminer_id_count++] = cgpu; mining_threads += cgpu->threads; #ifdef HAVE_CURSES adj_width(mining_threads, &dev_width); #endif #ifdef HAVE_OPENCL if (cgpu->api == &opencl_api) { gpu_threads += cgpu->threads; } #endif } struct _cgpu_devid_counter { char name[4]; int lastid; UT_hash_handle hh; }; bool add_cgpu(struct cgpu_info*cgpu) { static struct _cgpu_devid_counter *devids = NULL; struct _cgpu_devid_counter *d; HASH_FIND_STR(devids, cgpu->api->name, d); if (d) cgpu->device_id = ++d->lastid; else { d = malloc(sizeof(*d)); memcpy(d->name, cgpu->api->name, sizeof(d->name)); cgpu->device_id = d->lastid = 0; HASH_ADD_STR(devids, name, d); } devices = realloc(devices, sizeof(struct cgpu_info *) * (total_devices + 2)); devices[total_devices++] = cgpu; return true; } int main(int argc, char *argv[]) { bool pools_active = false; struct sigaction handler; struct thr_info *thr; struct block *block; unsigned int k; int i, j; char *s; /* This dangerous functions tramples random dynamically allocated * variables so do it before anything at all */ if (unlikely(curl_global_init(CURL_GLOBAL_ALL))) quit(1, "Failed to curl_global_init"); initial_args = malloc(sizeof(char *) * (argc + 1)); for (i = 0; i < argc; i++) initial_args[i] = strdup(argv[i]); initial_args[argc] = NULL; #ifdef HAVE_LIBUSB int err = libusb_init(NULL); if (err) { fprintf(stderr, "libusb_init() failed err %d", err); fflush(stderr); quit(1, "libusb_init() failed"); } mutex_init(&cgusb_lock); #endif mutex_init(&hash_lock); mutex_init(&qd_lock); mutex_init(&console_lock); mutex_init(&control_lock); mutex_init(&stats_lock); mutex_init(&sharelog_lock); mutex_init(&ch_lock); mutex_init(&sshare_lock); rwlock_init(&blk_lock); rwlock_init(&netacc_lock); mutex_init(&lp_lock); if (unlikely(pthread_cond_init(&lp_cond, NULL))) quit(1, "Failed to pthread_cond_init lp_cond"); mutex_init(&restart_lock); if (unlikely(pthread_cond_init(&restart_cond, NULL))) quit(1, "Failed to pthread_cond_init restart_cond"); if (unlikely(pthread_cond_init(&gws_cond, NULL))) quit(1, "Failed to pthread_cond_init gws_cond"); sprintf(packagename, "%s %s", PACKAGE, VERSION); #ifdef WANT_CPUMINE init_max_name_len(); #endif handler.sa_handler = &sighandler; handler.sa_flags = 0; sigemptyset(&handler.sa_mask); sigaction(SIGTERM, &handler, &termhandler); sigaction(SIGINT, &handler, &inthandler); #ifndef WIN32 signal(SIGPIPE, SIG_IGN); #endif opt_kernel_path = alloca(PATH_MAX); strcpy(opt_kernel_path, CGMINER_PREFIX); cgminer_path = alloca(PATH_MAX); s = strdup(argv[0]); strcpy(cgminer_path, dirname(s)); free(s); strcat(cgminer_path, "/"); #ifdef WANT_CPUMINE // Hack to make cgminer silent when called recursively on WIN32 int skip_to_bench = 0; #if defined(WIN32) char buf[32]; if (GetEnvironmentVariable("CGMINER_BENCH_ALGO", buf, 16)) skip_to_bench = 1; #endif // defined(WIN32) #endif devcursor = 8; logstart = devcursor + 1; logcursor = logstart + 1; block = calloc(sizeof(struct block), 1); if (unlikely(!block)) quit (1, "main OOM"); for (i = 0; i < 36; i++) strcat(block->hash, "0"); HASH_ADD_STR(blocks, hash, block); strcpy(current_block, block->hash); INIT_LIST_HEAD(&scan_devices); #ifdef HAVE_OPENCL memset(gpus, 0, sizeof(gpus)); for (i = 0; i < MAX_GPUDEVICES; i++) gpus[i].dynamic = true; #endif /* parse command line */ opt_register_table(opt_config_table, "Options for both config file and command line"); opt_register_table(opt_cmdline_table, "Options for command line only"); opt_parse(&argc, argv, applog_and_exit); if (argc != 1) quit(1, "Unexpected extra commandline arguments"); if (!config_loaded) load_default_config(); if (opt_benchmark) { struct pool *pool; pool = add_pool(); pool->rpc_url = malloc(255); strcpy(pool->rpc_url, "Benchmark"); pool->rpc_user = pool->rpc_url; pool->rpc_pass = pool->rpc_url; enable_pool(pool); pool->idle = false; successful_connect = true; } #ifdef HAVE_CURSES if (opt_realquiet || devices_enabled == -1) use_curses = false; if (use_curses) enable_curses(); #endif applog(LOG_WARNING, "Started %s", packagename); if (cnfbuf) { applog(LOG_NOTICE, "Loaded configuration file %s", cnfbuf); switch (fileconf_load) { case 0: applog(LOG_WARNING, "Fatal JSON error in configuration file."); applog(LOG_WARNING, "Configuration file could not be used."); break; case -1: applog(LOG_WARNING, "Error in configuration file, partially loaded."); if (use_curses) applog(LOG_WARNING, "Start cgminer with -T to see what failed to load."); break; default: break; } free(cnfbuf); cnfbuf = NULL; } strcat(opt_kernel_path, "/"); if (want_per_device_stats) opt_log_output = true; #ifdef WANT_CPUMINE #ifdef USE_SCRYPT if (opt_scrypt) set_scrypt_algo(&opt_algo); else #endif if (0 <= opt_bench_algo) { double rate = bench_algo_stage3(opt_bench_algo); if (!skip_to_bench) printf("%.5f (%s)\n", rate, algo_names[opt_bench_algo]); else { // Write result to shared memory for parent #if defined(WIN32) char unique_name[64]; if (GetEnvironmentVariable("CGMINER_SHARED_MEM", unique_name, 32)) { HANDLE map_handle = CreateFileMapping( INVALID_HANDLE_VALUE, // use paging file NULL, // default security attributes PAGE_READWRITE, // read/write access 0, // size: high 32-bits 4096, // size: low 32-bits unique_name // name of map object ); if (NULL != map_handle) { void *shared_mem = MapViewOfFile( map_handle, // object to map view of FILE_MAP_WRITE, // read/write access 0, // high offset: map from 0, // low offset: beginning 0 // default: map entire file ); if (NULL != shared_mem) CopyMemory(shared_mem, &rate, sizeof(rate)); (void)UnmapViewOfFile(shared_mem); } (void)CloseHandle(map_handle); } #endif } exit(0); } #endif #ifdef HAVE_OPENCL if (!opt_nogpu) opencl_api.api_detect(); gpu_threads = 0; #endif #ifdef USE_ICARUS if (!opt_scrypt) icarus_api.api_detect(); #endif #ifdef USE_BITFORCE if (!opt_scrypt) bitforce_api.api_detect(); #endif #ifdef USE_MODMINER if (!opt_scrypt) modminer_api.api_detect(); #endif #ifdef USE_ZTEX if (!opt_scrypt) ztex_api.api_detect(); #endif #ifdef WANT_CPUMINE cpu_api.api_detect(); #endif if (devices_enabled == -1) { applog(LOG_ERR, "Devices detected:"); for (i = 0; i < total_devices; ++i) { struct cgpu_info *cgpu = devices[i]; if (cgpu->name) applog(LOG_ERR, " %2d. %s %d: %s (driver: %s)", i, cgpu->api->name, cgpu->device_id, cgpu->name, cgpu->api->dname); else applog(LOG_ERR, " %2d. %s %d (driver: %s)", i, cgpu->api->name, cgpu->device_id, cgpu->api->dname); } quit(0, "%d devices listed", total_devices); } mining_threads = 0; if (devices_enabled) { for (i = 0; i < (int)(sizeof(devices_enabled) * 8) - 1; ++i) { if (devices_enabled & (1 << i)) { if (i >= total_devices) quit (1, "Command line options set a device that doesn't exist"); enable_device(devices[i]); } else if (i < total_devices) { if (opt_removedisabled) { if (devices[i]->api == &cpu_api) --opt_n_threads; } else { enable_device(devices[i]); } devices[i]->deven = DEV_DISABLED; } } total_devices = cgminer_id_count; } else { for (i = 0; i < total_devices; ++i) enable_device(devices[i]); } if (!total_devices) quit(1, "All devices disabled, cannot mine!"); load_temp_cutoffs(); for (i = 0; i < total_devices; ++i) devices[i]->cgminer_stats.getwork_wait_min.tv_sec = MIN_SEC_UNSET; if (!opt_compact) { logstart += total_devices; logcursor = logstart + 1; #ifdef HAVE_CURSES check_winsizes(); #endif } if (!total_pools) { applog(LOG_WARNING, "Need to specify at least one pool server."); #ifdef HAVE_CURSES if (!use_curses || !input_pool(false)) #endif quit(1, "Pool setup failed"); } for (i = 0; i < total_pools; i++) { struct pool *pool = pools[i]; pool->cgminer_stats.getwork_wait_min.tv_sec = MIN_SEC_UNSET; pool->cgminer_pool_stats.getwork_wait_min.tv_sec = MIN_SEC_UNSET; if (!pool->rpc_userpass) { if (!pool->rpc_user || !pool->rpc_pass) quit(1, "No login credentials supplied for pool %u %s", i, pool->rpc_url); pool->rpc_userpass = malloc(strlen(pool->rpc_user) + strlen(pool->rpc_pass) + 2); if (!pool->rpc_userpass) quit(1, "Failed to malloc userpass"); sprintf(pool->rpc_userpass, "%s:%s", pool->rpc_user, pool->rpc_pass); } } /* Set the currentpool to pool 0 */ currentpool = pools[0]; #ifdef HAVE_SYSLOG_H if (use_syslog) openlog(PACKAGE, LOG_PID, LOG_USER); #endif #if defined(unix) if (opt_stderr_cmd) fork_monitor(); #endif // defined(unix) total_threads = mining_threads + 7; thr_info = calloc(total_threads, sizeof(*thr)); if (!thr_info) quit(1, "Failed to calloc thr_info"); gwsched_thr_id = mining_threads; stage_thr_id = mining_threads + 1; thr = &thr_info[stage_thr_id]; thr->q = tq_new(); if (!thr->q) quit(1, "Failed to tq_new"); /* start stage thread */ if (thr_info_create(thr, NULL, stage_thread, thr)) quit(1, "stage thread create failed"); pthread_detach(thr->pth); /* Create a unique get work queue */ getq = tq_new(); if (!getq) quit(1, "Failed to create getq"); /* We use the getq mutex as the staged lock */ stgd_lock = &getq->mutex; if (opt_benchmark) goto begin_bench; for (i = 0; i < total_pools; i++) { struct pool *pool = pools[i]; enable_pool(pool); pool->idle = true; } applog(LOG_NOTICE, "Probing for an alive pool"); do { /* Look for at least one active pool before starting */ for (i = 0; i < total_pools; i++) { struct pool *pool = pools[i]; if (pool_active(pool, false)) { pool_tset(pool, &pool->lagging); pool_tclear(pool, &pool->idle); if (!currentpool) currentpool = pool; applog(LOG_INFO, "Pool %d %s active", pool->pool_no, pool->rpc_url); pools_active = true; break; } else { if (pool == currentpool) currentpool = NULL; applog(LOG_WARNING, "Unable to get work from pool %d %s", pool->pool_no, pool->rpc_url); } } if (!pools_active) { applog(LOG_ERR, "No servers were found that could be used to get work from."); applog(LOG_ERR, "Please check the details from the list below of the servers you have input"); applog(LOG_ERR, "Most likely you have input the wrong URL, forgotten to add a port, or have not set up workers"); for (i = 0; i < total_pools; i++) { struct pool *pool; pool = pools[i]; applog(LOG_WARNING, "Pool: %d URL: %s User: %s Password: %s", i, pool->rpc_url, pool->rpc_user, pool->rpc_pass); } #ifdef HAVE_CURSES if (use_curses) { halfdelay(150); applog(LOG_ERR, "Press any key to exit, or cgminer will try again in 15s."); if (getch() != ERR) quit(0, "No servers could be used! Exiting."); nocbreak(); } else #endif quit(0, "No servers could be used! Exiting."); } } while (!pools_active); begin_bench: total_mhashes_done = 0; for (i = 0; i < total_devices; i++) { struct cgpu_info *cgpu = devices[i]; cgpu->rolling = cgpu->total_mhashes = 0; } gettimeofday(&total_tv_start, NULL); gettimeofday(&total_tv_end, NULL); get_datestamp(datestamp, &total_tv_start); // Start threads k = 0; for (i = 0; i < total_devices; ++i) { struct cgpu_info *cgpu = devices[i]; cgpu->thr = malloc(sizeof(*cgpu->thr) * (cgpu->threads+1)); cgpu->thr[cgpu->threads] = NULL; cgpu->status = LIFE_INIT; for (j = 0; j < cgpu->threads; ++j, ++k) { thr = &thr_info[k]; thr->id = k; thr->cgpu = cgpu; thr->device_thread = j; thr->q = tq_new(); if (!thr->q) quit(1, "tq_new failed in starting %s%d mining thread (#%d)", cgpu->api->name, cgpu->device_id, i); /* Enable threads for devices set not to mine but disable * their queue in case we wish to enable them later */ if (cgpu->deven != DEV_DISABLED) { applog(LOG_DEBUG, "Pushing ping to thread %d", thr->id); tq_push(thr->q, &ping); } if (cgpu->api->thread_prepare && !cgpu->api->thread_prepare(thr)) continue; thread_reportout(thr); if (unlikely(thr_info_create(thr, NULL, miner_thread, thr))) quit(1, "thread %d create failed", thr->id); cgpu->thr[j] = thr; } } #ifdef HAVE_OPENCL applog(LOG_INFO, "%d gpu miner threads started", gpu_threads); for (i = 0; i < nDevs; i++) pause_dynamic_threads(i); #endif #ifdef WANT_CPUMINE applog(LOG_INFO, "%d cpu miner threads started, " "using SHA256 '%s' algorithm.", opt_n_threads, algo_names[opt_algo]); #endif gettimeofday(&total_tv_start, NULL); gettimeofday(&total_tv_end, NULL); watchpool_thr_id = mining_threads + 2; thr = &thr_info[watchpool_thr_id]; /* start watchpool thread */ if (thr_info_create(thr, NULL, watchpool_thread, NULL)) quit(1, "watchpool thread create failed"); pthread_detach(thr->pth); watchdog_thr_id = mining_threads + 3; thr = &thr_info[watchdog_thr_id]; /* start watchdog thread */ if (thr_info_create(thr, NULL, watchdog_thread, NULL)) quit(1, "watchdog thread create failed"); pthread_detach(thr->pth); #ifdef HAVE_OPENCL /* Create reinit gpu thread */ gpur_thr_id = mining_threads + 4; thr = &thr_info[gpur_thr_id]; thr->q = tq_new(); if (!thr->q) quit(1, "tq_new failed for gpur_thr_id"); if (thr_info_create(thr, NULL, reinit_gpu, thr)) quit(1, "reinit_gpu thread create failed"); #endif /* Create API socket thread */ api_thr_id = mining_threads + 5; thr = &thr_info[api_thr_id]; if (thr_info_create(thr, NULL, api_thread, thr)) quit(1, "API thread create failed"); #ifdef HAVE_CURSES /* Create curses input thread for keyboard input. Create this last so * that we know all threads are created since this can call kill_work * to try and shut down ll previous threads. */ input_thr_id = mining_threads + 6; thr = &thr_info[input_thr_id]; if (thr_info_create(thr, NULL, input_thread, thr)) quit(1, "input thread create failed"); pthread_detach(thr->pth); #endif /* Once everything is set up, main() becomes the getwork scheduler */ while (42) { int ts, max_staged = opt_queue; struct pool *pool, *cp; bool lagging = false; struct curl_ent *ce; struct work *work; cp = current_pool(); /* If the primary pool is a getwork pool and cannot roll work, * try to stage one extra work per mining thread */ if (!cp->has_stratum && !cp->has_gbt && !staged_rollable) max_staged += mining_threads; mutex_lock(stgd_lock); ts = __total_staged(); if (!cp->has_stratum && !cp->has_gbt && !ts && !opt_fail_only) lagging = true; /* Wait until hash_pop tells us we need to create more work */ if (ts > max_staged) { pthread_cond_wait(&gws_cond, stgd_lock); ts = __total_staged(); } mutex_unlock(stgd_lock); if (ts > max_staged) continue; work = make_work(); if (lagging && !pool_tset(cp, &cp->lagging)) { applog(LOG_WARNING, "Pool %d not providing work fast enough", cp->pool_no); cp->getfail_occasions++; total_go++; } pool = select_pool(lagging); retry: if (pool->has_stratum) { while (!pool->stratum_active) { struct pool *altpool = select_pool(true); sleep(5); if (altpool != pool) { pool = altpool; goto retry; } } gen_stratum_work(pool, work); applog(LOG_DEBUG, "Generated stratum work"); stage_work(work); continue; } if (pool->has_gbt) { while (pool->idle) { struct pool *altpool = select_pool(true); sleep(5); if (altpool != pool) { pool = altpool; goto retry; } } gen_gbt_work(pool, work); applog(LOG_DEBUG, "Generated GBT work"); stage_work(work); continue; } if (__clone_available()) { applog(LOG_DEBUG, "Cloned getwork work"); free_work(work); continue; } if (opt_benchmark) { get_benchmark_work(work); applog(LOG_DEBUG, "Generated benchmark work"); stage_work(work); continue; } work->pool = pool; ce = pop_curl_entry(pool); /* obtain new work from bitcoin via JSON-RPC */ if (!get_upstream_work(work, ce->curl)) { applog(LOG_DEBUG, "Pool %d json_rpc_call failed on get work, retrying in 5s", pool->pool_no); /* Make sure the pool just hasn't stopped serving * requests but is up as we'll keep hammering it */ if (++pool->seq_getfails > mining_threads + opt_queue) pool_died(pool); sleep(5); push_curl_entry(ce, pool); pool = select_pool(!opt_fail_only); goto retry; } if (ts >= max_staged) pool_tclear(pool, &pool->lagging); if (pool_tclear(pool, &pool->idle)) pool_resus(pool); applog(LOG_DEBUG, "Generated getwork work"); stage_work(work); push_curl_entry(ce, pool); } return 0; }