extern "C" EXPORT unsigned long long BitmessagePOW(unsigned char * starthash, unsigned long long target)
{
successval = 0;
max_val = target;
getnumthreads();
initialHash = (unsigned char *)starthash;
# ifdef _WIN32
HANDLE* threads = (HANDLE*)calloc(sizeof(HANDLE), numthreads);
# else
pthread_t* threads = (pthread_t*)calloc(sizeof(pthread_t), numthreads);
struct sched_param schparam;
schparam.sched_priority = 0;
# endif
unsigned int *threaddata = (unsigned int *)calloc(sizeof(unsigned int), numthreads);
for (unsigned int i = 0; i < numthreads; i++) {
threaddata[i] = i;
# ifdef _WIN32
threads[i] = CreateThread(NULL, 0, threadfunc, (LPVOID)&threaddata[i], 0, NULL);
SetThreadPriority(threads[i], THREAD_PRIORITY_IDLE);
# else
pthread_create(&threads[i], NULL, threadfunc, (void*)&threaddata[i]);
# ifdef __linux__
pthread_setschedparam(threads[i], SCHED_IDLE, &schparam);
# else
pthread_setschedparam(threads[i], SCHED_RR, &schparam);
# endif
# endif
}
# ifdef _WIN32
WaitForMultipleObjects(numthreads, threads, TRUE, INFINITE);
# else
for (unsigned int i = 0; i < numthreads; i++) {
pthread_join(threads[i], NULL);
}
# endif
free(threads);
free(threaddata);
return successval;
}
void getnumthreads()
{
#ifdef _WIN32
DWORD_PTR dwProcessAffinity, dwSystemAffinity;
#elif __linux__
cpu_set_t dwProcessAffinity;
#else
int dwProcessAffinity = 0;
int32_t core_count = 0;
#endif
size_t len = sizeof(dwProcessAffinity);
if (numthreads > 0)
return;
#ifdef _WIN32
GetProcessAffinityMask(GetCurrentProcess(), &dwProcessAffinity, &dwSystemAffinity);
#elif __linux__
sched_getaffinity(0, len, &dwProcessAffinity);
#else
if (sysctlbyname("hw.logicalcpu", &core_count, &len, 0, 0) == 0)
numthreads = core_count;
#endif
for (unsigned int i = 0; i < len * 8; i++)
#if defined(_WIN32)
if (dwProcessAffinity & (1i64 << i)) {
#elif defined __linux__
if (CPU_ISSET(i, &dwProcessAffinity)) {
#else
if (dwProcessAffinity & (1 << i)) {
#endif
numthreads++;
printf("Detected core on: %u\n", i);
}
printf("Number of threads: %i\n", (int)numthreads);
}
extern "C" EXPORT unsigned long long BitmessagePOW(unsigned char * starthash, unsigned long long target)
{
successval = 0;
max_val = target;
getnumthreads();
initialHash = (unsigned char *)starthash;
# ifdef _WIN32
HANDLE* threads = (HANDLE*)calloc(sizeof(HANDLE), numthreads);
# else
pthread_t* threads = (pthread_t*)calloc(sizeof(pthread_t), numthreads);
struct sched_param schparam;
schparam.sched_priority = 0;
# endif
unsigned int *threaddata = (unsigned int *)calloc(sizeof(unsigned int), numthreads);
for (unsigned int i = 0; i < numthreads; i++) {
threaddata[i] = i;
# ifdef _WIN32
threads[i] = CreateThread(NULL, 0, threadfunc, (LPVOID)&threaddata[i], 0, NULL);
SetThreadPriority(threads[i], THREAD_PRIORITY_IDLE);
# else
pthread_create(&threads[i], NULL, threadfunc, (void*)&threaddata[i]);
# ifdef __linux__
pthread_setschedparam(threads[i], SCHED_IDLE, &schparam);
# else
pthread_setschedparam(threads[i], SCHED_RR, &schparam);
# endif
# endif
}
# ifdef _WIN32
WaitForMultipleObjects(numthreads, threads, TRUE, INFINITE);
# else
for (unsigned int i = 0; i < numthreads; i++) {
pthread_join(threads[i], NULL);
}
# endif
free(threads);
free(threaddata);
return successval;
}
