diff options
| author | Kyle Evans <kevans@FreeBSD.org> | 2023-09-25 21:24:07 +0300 |
|---|---|---|
| committer | Warner Losh <imp@bsdimp.com> | 2023-10-03 17:14:06 -0600 |
| commit | b623031ca60b23dbb8a573306495e7d99821a9af (patch) | |
| tree | 3a89220e3eaf129be9bb2438daedec3ad48be567 /bsd-user/bsd-proc.c | |
| parent | 3f44e273ff530ae9885b64791779ced571233d1d (diff) | |
bsd-user: Get number of cpus.
Signed-off-by: Kyle Evans <kevans@FreeBSD.org>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Reviewed-by: Warner Losh <imp@bsdimp.com>
Message-Id: <20230925182425.3163-11-kariem.taha2.7@gmail.com>
Diffstat (limited to 'bsd-user/bsd-proc.c')
| -rw-r--r-- | bsd-user/bsd-proc.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/bsd-user/bsd-proc.c b/bsd-user/bsd-proc.c index 19f6efe1f7..ca3c1bf94f 100644 --- a/bsd-user/bsd-proc.c +++ b/bsd-user/bsd-proc.c @@ -119,3 +119,27 @@ int host_to_target_waitstatus(int status) return status; } +int bsd_get_ncpu(void) +{ + int ncpu = -1; + cpuset_t mask; + + CPU_ZERO(&mask); + + if (cpuset_getaffinity(CPU_LEVEL_WHICH, CPU_WHICH_TID, -1, sizeof(mask), + &mask) == 0) { + ncpu = CPU_COUNT(&mask); + } + + if (ncpu == -1) { + ncpu = sysconf(_SC_NPROCESSORS_ONLN); + } + + if (ncpu == -1) { + gemu_log("XXX Missing bsd_get_ncpu() implementation\n"); + ncpu = 1; + } + + return ncpu; +} + |