#include "cache.h" #include "thread-utils.h" #if 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 GIT_WINDOWS_NATIVE 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; #elif defined(HAVE_BSD_SYSCTL) && defined(HW_NCPU) int mib[2]; size_t len; int cpucount; mib[0] = CTL_HW; # ifdef HW_AVAILCPU mib[1] = HW_AVAILCPU; len = sizeof(cpucount); if (!sysctl(mib, 2, &cpucount, &len, NULL, 0)) return cpucount; # endif /* HW_AVAILCPU */ mib[1] = HW_NCPU; len = sizeof(cpucount); if (!sysctl(mib, 2, &cpucount, &len, NULL, 0)) return cpucount; #endif /* defined(HAVE_BSD_SYSCTL) && defined(HW_NCPU) */ #ifdef _SC_NPROCESSORS_ONLN if ((ncpus = (long)sysconf(_SC_NPROCESSORS_ONLN)) > 0) return (int)ncpus; #endif return 1; } int init_recursive_mutex(pthread_mutex_t *m) { pthread_mutexattr_t a; int ret; ret = pthread_mutexattr_init(&a); if (!ret) { ret = pthread_mutexattr_settype(&a, PTHREAD_MUTEX_RECURSIVE); if (!ret) ret = pthread_mutex_init(m, &a); pthread_mutexattr_destroy(&a); } return ret; }