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Add FreeBSD support to GetProcessorCount

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This commit is contained in:
Mateusz Guzik 2020-11-28 23:54:09 +00:00
parent ed056bdd8c
commit 9d4ea5a8e8
1 changed files with 12 additions and 1 deletions
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13
src/util.cc
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@ -51,6 +51,10 @@
#include <sys/sysinfo.h> #include <sys/sysinfo.h>
#endif #endif
#if defined(__FreeBSD__)
#include <sys/cpuset.h>
#endif
#include "edit_distance.h" #include "edit_distance.h"
#include "metrics.h" #include "metrics.h"
@ -485,10 +489,17 @@ int GetProcessorCount() {
#ifdef _WIN32 #ifdef _WIN32
return GetActiveProcessorCount(ALL_PROCESSOR_GROUPS); return GetActiveProcessorCount(ALL_PROCESSOR_GROUPS);
#else #else
#ifdef CPU_COUNT
// The number of exposed processors might not represent the actual number of // The number of exposed processors might not represent the actual number of
// processors threads can run on. This happens when a CPU set limitation is // processors threads can run on. This happens when a CPU set limitation is
// active, see https://github.com/ninja-build/ninja/issues/1278 // active, see https://github.com/ninja-build/ninja/issues/1278
#if defined(__FreeBSD__)
cpuset_t mask;
CPU_ZERO(&mask);
if (cpuset_getaffinity(CPU_LEVEL_WHICH, CPU_WHICH_TID, -1, sizeof(mask),
&mask) == 0) {
return CPU_COUNT(&mask);
}
#elif defined(CPU_COUNT)
cpu_set_t set; cpu_set_t set;
if (sched_getaffinity(getpid(), sizeof(set), &set) == 0) { if (sched_getaffinity(getpid(), sizeof(set), &set) == 0) {
return CPU_COUNT(&set); return CPU_COUNT(&set);