projects / thirdparty / git.git / blame
| Commit | Line | Data |
|---|---|---|
| 833e3df1 AE |
1 | #include "cache.h" |
| 2 | ||
| 3 | #ifdef _WIN32 | |
| 4 | # define WIN32_LEAN_AND_MEAN | |
| 5 | # include <windows.h> | |
| 6 | #elif defined(hpux) || defined(__hpux) || defined(_hpux) | |
| 7 | # include <sys/pstat.h> | |
| 8 | #endif | |
| 9 | ||
| 10 | /* | |
| 11 | * By doing this in two steps we can at least get | |
| 12 | * the function to be somewhat coherent, even | |
| 13 | * with this disgusting nest of #ifdefs. | |
| 14 | */ | |
| 15 | #ifndef _SC_NPROCESSORS_ONLN | |
| 16 | # ifdef _SC_NPROC_ONLN | |
| 17 | # define _SC_NPROCESSORS_ONLN _SC_NPROC_ONLN | |
| 18 | # elif defined _SC_CRAY_NCPU | |
| 19 | # define _SC_NPROCESSORS_ONLN _SC_CRAY_NCPU | |
| 20 | # endif | |
| 21 | #endif | |
| 22 | ||
| 23 | int online_cpus(void) | |
| 24 | { | |
| 25 | #ifdef _SC_NPROCESSORS_ONLN | |
| 26 | long ncpus; | |
| 27 | #endif | |
| 28 | ||
| 29 | #ifdef _WIN32 | |
| 30 | SYSTEM_INFO info; | |
| 31 | GetSystemInfo(&info); | |
| 32 | ||
| 33 | if ((int)info.dwNumberOfProcessors > 0) | |
| 34 | return (int)info.dwNumberOfProcessors; | |
| 35 | #elif defined(hpux) || defined(__hpux) || defined(_hpux) | |
| 36 | struct pst_dynamic psd; | |
| 37 | ||
| 38 | if (!pstat_getdynamic(&psd, sizeof(psd), (size_t)1, 0)) | |
| 39 | return (int)psd.psd_proc_cnt; | |
| 40 | #endif | |
| 41 | ||
| 42 | #ifdef _SC_NPROCESSORS_ONLN | |
| 43 | if ((ncpus = (long)sysconf(_SC_NPROCESSORS_ONLN)) > 0) | |
| 44 | return (int)ncpus; | |
| 45 | #endif | |
| 46 | ||
| 47 | return 1; | |
| 48 | } |