GOSTcoin support for ccminer CUDA miner project, compatible with most nvidia cards
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#include <inttypes.h>
#include <stdlib.h>
#include <map>
#include "miner.h"
static std::map<uint64_t, uint32_t> tlastshares;
/**
* Purge entries after 15 minutes
*/
#define LOG_PURGE_TIMEOUT 15*60
/**
* Store submitted nounces of a job
*/
extern "C" void hashlog_remember_submit(char* jobid, uint32_t nounce)
{
char *ptr;
uint64_t njobid = (uint64_t) strtoul(jobid, &ptr, 16);
uint64_t key = (njobid << 32) + nounce;
tlastshares[key] = (uint32_t) time(NULL);
}
/**
* @return time of submission
*/
extern "C" uint32_t hashlog_already_submittted(char* jobid, uint32_t nounce)
{
char *ptr;
uint32_t ret = 0;
uint64_t njobid = (uint64_t) strtoul(jobid, &ptr, 16);
uint64_t key = (njobid << 32) + nounce;
std::map<uint64_t, uint32_t>::iterator i = tlastshares.find(key);
if (i != 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)
{
char *ptr;
uint64_t njobid = strtoul(jobid, &ptr, 16);
uint64_t keypfx = (njobid << 32);
std::map<uint64_t, uint32_t>::iterator i = tlastshares.begin();
while (i != tlastshares.end()) {
if ((keypfx & i->first) != 0)
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);
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, tlastshares.size());
}
}
/**
* Reset the submitted nounce cache
*/
extern "C" void hashlog_purge_all(void)
{
tlastshares.clear();
}