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author | mm <mm@FreeBSD.org> | 2010-05-10 06:59:50 +0000 |
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committer | mm <mm@FreeBSD.org> | 2010-05-10 06:59:50 +0000 |
commit | 5c358d45429b654efa9c8177ecd370a7965ec1a7 (patch) | |
tree | d2d916954c6a66a3168ee356b5f24da01c2017d6 /contrib/xz/src/common/tuklib_cpucores.c | |
parent | 3e09decd1986826f54af1a47be97bb87c1220783 (diff) | |
parent | 1008b7c6744a190c5b15aaf8cab1054671e4c7c3 (diff) | |
download | FreeBSD-src-5c358d45429b654efa9c8177ecd370a7965ec1a7.zip FreeBSD-src-5c358d45429b654efa9c8177ecd370a7965ec1a7.tar.gz |
Import of liblzma, xz, xzdec, lzmainfo from vendor branch
Add support for xz and lzma to lesspipe.sh (xzless, lzless)
Bump __FreeBSD_version
Approved by: delphij (mentor)
MFC after: 2 weeks
Diffstat (limited to 'contrib/xz/src/common/tuklib_cpucores.c')
-rw-r--r-- | contrib/xz/src/common/tuklib_cpucores.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/contrib/xz/src/common/tuklib_cpucores.c b/contrib/xz/src/common/tuklib_cpucores.c new file mode 100644 index 0000000..e35d9bc --- /dev/null +++ b/contrib/xz/src/common/tuklib_cpucores.c @@ -0,0 +1,52 @@ +/////////////////////////////////////////////////////////////////////////////// +// +/// \file tuklib_cpucores.c +/// \brief Get the number of CPU cores online +// +// Author: Lasse Collin +// +// This file has been put into the public domain. +// You can do whatever you want with this file. +// +/////////////////////////////////////////////////////////////////////////////// + +#include "tuklib_cpucores.h" + +#if defined(TUKLIB_CPUCORES_SYSCTL) +# ifdef HAVE_SYS_PARAM_H +# include <sys/param.h> +# endif +# include <sys/sysctl.h> + +#elif defined(TUKLIB_CPUCORES_SYSCONF) +# include <unistd.h> +#endif + + +extern uint32_t +tuklib_cpucores(void) +{ + uint32_t ret = 0; + +#if defined(TUKLIB_CPUCORES_SYSCTL) + int name[2] = { CTL_HW, HW_NCPU }; + int cpus; + size_t cpus_size = sizeof(cpus); + if (sysctl(name, 2, &cpus, &cpus_size, NULL, 0) != -1 + && cpus_size == sizeof(cpus) && cpus > 0) + ret = (uint32_t)cpus; + +#elif defined(TUKLIB_CPUCORES_SYSCONF) +# ifdef _SC_NPROCESSORS_ONLN + // Most systems + const long cpus = sysconf(_SC_NPROCESSORS_ONLN); +# else + // IRIX + const long cpus = sysconf(_SC_NPROC_ONLN); +# endif + if (cpus > 0) + ret = (uint32_t)cpus; +#endif + + return ret; +} |