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libobs: Add functions to get logical/physical cores

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jp9000
2017-04-24 03:17:47 -07:00
parent 829ec5be2d
commit 6fc74d69a9
6 changed files with 170 additions and 62 deletions
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48
libobs/obs-windows.c
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@@ -105,54 +105,10 @@ static void log_processor_info(void)
RegCloseKey(key);
}
static DWORD num_logical_cores(ULONG_PTR mask)
{
DWORD left_shift = sizeof(ULONG_PTR) * 8 - 1;
DWORD bit_set_count = 0;
ULONG_PTR bit_test = (ULONG_PTR)1 << left_shift;
for (DWORD i = 0; i <= left_shift; ++i) {
bit_set_count += ((mask & bit_test) ? 1 : 0);
bit_test /= 2;
}
return bit_set_count;
}
static void log_processor_cores(void)
{
PSYSTEM_LOGICAL_PROCESSOR_INFORMATION info = NULL, temp = NULL;
DWORD len = 0;
GetLogicalProcessorInformation(info, &len);
if (GetLastError() != ERROR_INSUFFICIENT_BUFFER)
return;
info = malloc(len);
if (GetLogicalProcessorInformation(info, &len)) {
DWORD num = len / sizeof(*info);
int physical_cores = 0;
int logical_cores = 0;
temp = info;
for (DWORD i = 0; i < num; i++) {
if (temp->Relationship == RelationProcessorCore) {
ULONG_PTR mask = temp->ProcessorMask;
physical_cores++;
logical_cores += num_logical_cores(mask);
}
temp++;
}
blog(LOG_INFO, "Physical Cores: %d, Logical Cores: %d",
physical_cores, logical_cores);
}
free(info);
blog(LOG_INFO, "Physical Cores: %d, Logical Cores: %d",
os_get_physical_cores(), os_get_logical_cores());
}
static void log_available_memory(void)