mirror of
https://github.com/reactos/RosBE.git
synced 2024-11-23 11:29:44 +00:00
101 lines
2.5 KiB
C
101 lines
2.5 KiB
C
/*
|
|
* PROJECT: ReactOS Build Environment Tools
|
|
* LICENSE: GNU General Public License v2. (see LICENSE.txt)
|
|
* FILE: Tools/cpucount.c
|
|
* PURPOSE: CPU Core Counter
|
|
* COPYRIGHT: Copyright 2007 Christoph von Wittich <Christoph_vW@reactos.org>
|
|
* Copyright 2007 Colin Finck <mail@colinfinck.de>
|
|
* Copyright 2007 Peter Ward <dralnix@gmail.com>
|
|
*
|
|
*/
|
|
|
|
#if defined(WIN32)
|
|
# include <windows.h>
|
|
#elif defined(__APPLE__)
|
|
# include <sys/sysctl.h>
|
|
#else
|
|
# include <unistd.h>
|
|
#endif
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
int cpuCount = 0;
|
|
|
|
#if defined(WIN32)
|
|
if(argc > 3)
|
|
#else
|
|
if(argc > 2)
|
|
#endif
|
|
{
|
|
fprintf(stderr, "%s: Error too many parameters specified.\n", argv[0]);
|
|
return -1;
|
|
}
|
|
|
|
#if defined(WIN32)
|
|
if (argc != 1 && !strncmp(argv[argc - 1], "-a", 2))
|
|
{
|
|
DWORD_PTR ProcessAffinityMask, SystemAffinityMask;
|
|
|
|
if (GetProcessAffinityMask(GetCurrentProcess(), &ProcessAffinityMask, &SystemAffinityMask))
|
|
{
|
|
while (ProcessAffinityMask != 0)
|
|
{
|
|
if (ProcessAffinityMask & 0x1)
|
|
cpuCount++;
|
|
|
|
ProcessAffinityMask >>= 1;
|
|
}
|
|
}
|
|
|
|
argc--; /* don't look at this argument again */
|
|
}
|
|
else
|
|
{
|
|
SYSTEM_INFO SystemInformation;
|
|
|
|
GetSystemInfo(&SystemInformation);
|
|
cpuCount = SystemInformation.dwNumberOfProcessors;
|
|
}
|
|
#elif defined(__APPLE__)
|
|
size_t countSize = sizeof(cpuCount);
|
|
|
|
sysctlbyname("hw.logicalcpu", &cpuCount, &countSize, NULL, 0);
|
|
#else
|
|
cpuCount = sysconf(_SC_NPROCESSORS_ONLN);
|
|
#endif
|
|
|
|
if (argc != 1)
|
|
{
|
|
if(!strncmp(argv[1], "-x1", 3))
|
|
{
|
|
cpuCount++;
|
|
}
|
|
else if(!strncmp(argv[1], "-x2", 3))
|
|
{
|
|
cpuCount += cpuCount;
|
|
}
|
|
else
|
|
{
|
|
#if defined(WIN32)
|
|
printf("Usage: %s [-x1|-x2] [-a]\n", argv[0]);
|
|
#else
|
|
printf("Usage: %s [-x1|-x2]\n", argv[0]);
|
|
#endif
|
|
printf("Running cpucount without options returns the number of\n");
|
|
printf("processors in the system.\n");
|
|
printf("-x1 - Number of processors in the system, plus 1.\n");
|
|
printf("-x2 - Number of processors in the system, doubled.\n");
|
|
#if defined(WIN32)
|
|
printf("-a - Use the affinity mask to determine number of processors\n");
|
|
#endif
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
printf("%u\n", cpuCount);
|
|
return 0;
|
|
}
|