GOSTCoin CUDA miner project, compatible with most nvidia cards, containing only gostd algo
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//#include <inttypes.h>
#include <stdlib.h>
#include <map>
#include "miner.h"
#define HI_DWORD(u64) ((uint32_t) (u64 >> 32))
#define LO_DWORD(u64) ((uint32_t) u64)
static std::map<uint64_t, uint32_t> tlastshares;
#define LOG_PURGE_TIMEOUT 15*60
/**
* str hex to uint32
*/
static uint64_t hextouint(char* jobid)
{
char *ptr;
return strtoull(jobid, &ptr, 16);
}
/**
* Store submitted nonces of a job
*/
extern "C" void hashlog_remember_submit(char* jobid, uint32_t nonce)
{
uint64_t njobid = hextouint(jobid);
uint64_t key = (njobid << 32) + nonce;
tlastshares[key] = (uint32_t) time(NULL);
}
/**
* Search last submitted nonce for a job
* @return max nonce
*/
extern "C" uint32_t hashlog_get_last_sent(char* jobid)
{
uint32_t ret = 0;
uint64_t njobid = hextouint(jobid);
uint64_t keypfx = (njobid << 32);
std::map<uint64_t, uint32_t>::iterator i = tlastshares.begin();
while (i != tlastshares.end()) {
if ((keypfx & i->first) == keypfx && LO_DWORD(i->first) > ret) {
ret = LO_DWORD(i->first);
}
i++;
}
return ret;
}
/**
* @return time of a job/nonce submission (or last nonce if nonce is 0)
*/
extern "C" uint32_t hashlog_already_submittted(char* jobid, uint32_t nonce)
{
uint32_t ret = 0;
uint64_t njobid = hextouint(jobid);
uint64_t key = (njobid << 32) + nonce;
if (nonce == 0) {
// search last submitted nonce for job
ret = hashlog_get_last_sent(jobid);
} else if (tlastshares.find(key) != tlastshares.end()) {
ret = (uint32_t) tlastshares[key];
}
return ret;
}
/**
* Remove entries of a job... not used yet
*/
extern "C" void hashlog_purge_job(char* jobid)
{
uint64_t njobid = hextouint(jobid);
uint64_t keypfx = (njobid << 32);
std::map<uint64_t, uint32_t>::iterator i = tlastshares.begin();
while (i != tlastshares.end()) {
if ((keypfx & i->first) == keypfx)
tlastshares.erase(i);
i++;
}
}
/**
* Remove old entries to reduce memory usage
*/
extern "C" void hashlog_purge_old(void)
{
int deleted = 0;
uint32_t now = (uint32_t) time(NULL);
uint32_t sz = tlastshares.size();
std::map<uint64_t, uint32_t>::iterator i = tlastshares.begin();
while (i != tlastshares.end()) {
if ((now - i->second) > LOG_PURGE_TIMEOUT) {
deleted++;
tlastshares.erase(i);
}
i++;
}
if (opt_debug && deleted) {
applog(LOG_DEBUG, "hashlog: %d/%d purged", deleted, sz);
}
}
/**
* Reset the submitted nonces cache
*/
extern "C" void hashlog_purge_all(void)
{
tlastshares.clear();
}