mirror of
https://github.com/git/git.git
synced 2024-11-28 04:23:30 +08:00
49 lines
1.0 KiB
C
49 lines
1.0 KiB
C
|
#include "cache.h"
|
||
|
|
|
||
|
|
#ifdef _WIN32
|
||
|
|
# define WIN32_LEAN_AND_MEAN
|
||
|
|
# include <windows.h>
|
||
|
|
#elif defined(hpux) || defined(__hpux) || defined(_hpux)
|
||
|
|
# include <sys/pstat.h>
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/*
|
||
|
|
* By doing this in two steps we can at least get
|
||
|
|
* the function to be somewhat coherent, even
|
||
|
|
* with this disgusting nest of #ifdefs.
|
||
|
|
*/
|
||
|
|
#ifndef _SC_NPROCESSORS_ONLN
|
||
|
|
# ifdef _SC_NPROC_ONLN
|
||
|
|
# define _SC_NPROCESSORS_ONLN _SC_NPROC_ONLN
|
||
|
|
# elif defined _SC_CRAY_NCPU
|
||
|
|
# define _SC_NPROCESSORS_ONLN _SC_CRAY_NCPU
|
||
|
|
# endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
int online_cpus(void)
|
||
|
|
{
|
||
|
|
#ifdef _SC_NPROCESSORS_ONLN
|
||
|
|
long ncpus;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef _WIN32
|
||
|
|
SYSTEM_INFO info;
|
||
|
|
GetSystemInfo(&info);
|
||
|
|
|
||
|
|
if ((int)info.dwNumberOfProcessors > 0)
|
||
|
|
return (int)info.dwNumberOfProcessors;
|
||
|
|
#elif defined(hpux) || defined(__hpux) || defined(_hpux)
|
||
|
|
struct pst_dynamic psd;
|
||
|
|
|
||
|
|
if (!pstat_getdynamic(&psd, sizeof(psd), (size_t)1, 0))
|
||
|
|
return (int)psd.psd_proc_cnt;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef _SC_NPROCESSORS_ONLN
|
||
|
|
if ((ncpus = (long)sysconf(_SC_NPROCESSORS_ONLN)) > 0)
|
||
|
|
return (int)ncpus;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
return 1;
|
||
|
|
}
|