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| author | Evan Martin <martine@danga.com> | 2011-02-28 19:47:46 (GMT) |
|---|---|---|
| committer | Evan Martin <martine@danga.com> | 2011-02-28 19:47:46 (GMT) |
| commit | 590df5d245e8da3ea433fc32f48f069729100851 (patch) | |
| tree | b8971e0354a028970b8f2f2a3a95108911e1f820 /src | |
| parent | a5a707d19e8f6c97724eaa0b8f755cca3b25d6fa (diff) | |
| download | Ninja-590df5d245e8da3ea433fc32f48f069729100851.zip Ninja-590df5d245e8da3ea433fc32f48f069729100851.tar.gz Ninja-590df5d245e8da3ea433fc32f48f069729100851.tar.bz2 | |
get the number of CPUs on FreeBSD and OS X via sysctl()
From a patch from asmodai@in-nomine.org and dmitry@codingrobots.com.
Diffstat (limited to 'src')
| -rw-r--r-- | src/ninja.cc | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/ninja.cc b/src/ninja.cc index eb7e41c..122d4fd 100644 --- a/src/ninja.cc +++ b/src/ninja.cc @@ -22,6 +22,10 @@ #include <sys/stat.h> #include <sys/types.h> +#if defined(__APPLE__) || defined(__FreeBSD__) +#include <sys/sysctl.h> +#endif + #include "build.h" #include "build_log.h" #include "parsers.h" @@ -64,6 +68,7 @@ void usage(const BuildConfig& config) { int GuessParallelism() { int processors = 0; +#if defined(linux) const char kProcessorPrefix[] = "processor\t"; char buf[16 << 10]; FILE* f = fopen("/proc/cpuinfo", "r"); @@ -74,6 +79,15 @@ int GuessParallelism() { ++processors; } fclose(f); +#elif defined(__APPLE__) || defined(__FreeBSD__) + size_t processors_size = sizeof(processors); + int name[] = {CTL_HW, HW_NCPU}; + if (sysctl(name, sizeof(name) / sizeof(int), + &processors, &processors_size, + NULL, 0) < 0) { + processors = 1; + } +#endif switch (processors) { case 0: |