27 lines
544 B
C
27 lines
544 B
C
/*! \file oshacks.h
|
|
* \brief Some platform-dependent functions.
|
|
*/
|
|
#ifndef _QPMS_OSHACKS_H
|
|
#define _QPMS_OSHACKS_H
|
|
#include <unistd.h>
|
|
|
|
#ifdef _SC_NPROCESSORS_ONLN
|
|
static inline long get_ncpus(void) {
|
|
return sysconf(_SC_NPROCESSORS_ONLN);
|
|
}
|
|
#elif (0)
|
|
#include <sys/types.h>
|
|
#include <sys/sysctl.h>
|
|
static inline long get_ncpus(void) {
|
|
int32_t ncpu;
|
|
size_t len = sizeof(ncpu);
|
|
sysctlbyname("hw.physicalcpu", &ncpu, &len, NULL, 0);
|
|
return ncpu;
|
|
}
|
|
#else
|
|
static inline long get_ncpus(void) { return -1; }
|
|
#endif
|
|
|
|
|
|
#endif // _QPMS_OSHACKS_H
|