mirror of https://github.com/GOSTSec/ccminer
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Prevent to send duplicated shares on some pools like hashharder.. This cache keeps submitted job/nounces of the last 15 minutes so, remove exit on repeated duplicate shares, the submitted cache now handles this problem. Signed-off-by: Tanguy Pruvot <tanguy.pruvot@gmail.com>2upstream
Tanguy Pruvot
10 years ago
7 changed files with 117 additions and 17 deletions
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#include <inttypes.h> |
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#include <stdlib.h> |
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#include <map> |
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#include "miner.h" |
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static std::map<uint64_t, uint32_t> tlastshares; |
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/**
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* Purge entries after 15 minutes |
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*/ |
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#define LOG_PURGE_TIMEOUT 15*60 |
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/**
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* Store submitted nounces of a job |
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*/ |
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extern "C" void hashlog_remember_submit(char* jobid, uint32_t nounce) |
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{ |
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char *ptr; |
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uint64_t njobid = (uint64_t) strtoul(jobid, &ptr, 16); |
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uint64_t key = (njobid << 32) + nounce; |
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tlastshares[key] = (uint32_t) time(NULL); |
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} |
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/**
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* @return time of submission |
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*/ |
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extern "C" uint32_t hashlog_already_submittted(char* jobid, uint32_t nounce) |
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{ |
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char *ptr; |
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uint32_t ret = 0; |
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uint64_t njobid = (uint64_t) strtoul(jobid, &ptr, 16); |
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uint64_t key = (njobid << 32) + nounce; |
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std::map<uint64_t, uint32_t>::iterator i = tlastshares.find(key); |
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if (i != tlastshares.end()) |
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ret = (uint32_t) tlastshares[key]; |
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return ret; |
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} |
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/**
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* Remove entries of a job... not used yet |
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*/ |
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extern "C" void hashlog_purge_job(char* jobid) |
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{ |
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char *ptr; |
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uint64_t njobid = strtoul(jobid, &ptr, 16); |
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uint64_t keypfx = (njobid << 32); |
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std::map<uint64_t, uint32_t>::iterator i = tlastshares.begin(); |
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while (i != tlastshares.end()) { |
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if ((keypfx & i->first) != 0) |
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tlastshares.erase(i); |
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i++; |
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} |
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} |
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/**
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* Remove old entries to reduce memory usage |
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*/ |
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extern "C" void hashlog_purge_old(void) |
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{ |
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int deleted = 0; |
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uint32_t now = (uint32_t) time(NULL); |
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std::map<uint64_t, uint32_t>::iterator i = tlastshares.begin(); |
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while (i != tlastshares.end()) { |
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if ((now - i->second) > LOG_PURGE_TIMEOUT) { |
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deleted++; |
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tlastshares.erase(i); |
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} |
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i++; |
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} |
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if (opt_debug && deleted) { |
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applog(LOG_DEBUG, "hashlog: %d/%d purged", |
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deleted, tlastshares.size()); |
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} |
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} |
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/**
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* Reset the submitted nounce cache |
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*/ |
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extern "C" void hashlog_purge_all(void) |
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{ |
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tlastshares.clear(); |
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} |
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