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| #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 NO_PTHREADS | |
| return 1; | |
| #else | |
| #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; | |
| #endif | |
| } | |
| int init_recursive_mutex(pthread_mutex_t *m) | |
| { | |
| #ifndef NO_PTHREADS | |
| 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; | |
| #else | |
| return 0; | |
| #endif | |
| } | |
| #ifdef NO_PTHREADS | |
| int dummy_pthread_create(pthread_t *pthread, const void *attr, | |
| void *(*fn)(void *), void *data) | |
| { | |
| /* | |
| * Do nothing. | |
| * | |
| * The main purpose of this function is to break compiler's | |
| * flow analysis and avoid -Wunused-variable false warnings. | |
| */ | |
| return ENOSYS; | |
| } | |
| int dummy_pthread_init(void *data) | |
| { | |
| /* | |
| * Do nothing. | |
| * | |
| * The main purpose of this function is to break compiler's | |
| * flow analysis or it may realize that functions like | |
| * pthread_mutex_init() is no-op, which means the (static) | |
| * variable is not used/initialized at all and trigger | |
| * -Wunused-variable | |
| */ | |
| return ENOSYS; | |
| } | |
| int dummy_pthread_join(pthread_t pthread, void **retval) | |
| { | |
| /* | |
| * Do nothing. | |
| * | |
| * The main purpose of this function is to break compiler's | |
| * flow analysis and avoid -Wunused-variable false warnings. | |
| */ | |
| return ENOSYS; | |
| } | |
| #endif |