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| author | Eric Wong <e@80x24.org> | 2023-09-09 12:01:36 +0000 |
|---|---|---|
| committer | Eric Wong <e@80x24.org> | 2023-09-09 21:31:54 +0000 |
| commit | 0ca202556c6ffc4f4fb8acd17d0854fdc0b0a2df (patch) | |
| tree | 0bf3416ee587863ce54e5314e9ba60e4e8703829 /lib/PublicInbox/IPC.pm | |
| parent | 305ccc1e8502602b1fc766ba1a542c8edaf6a82a (diff) | |
| download | public-inbox-0ca202556c6ffc4f4fb8acd17d0854fdc0b0a2df.tar.gz | |
We'll reorganize this into a hash table for ease-of-reading.
Diffstat (limited to 'lib/PublicInbox/IPC.pm')
| -rw-r--r-- | lib/PublicInbox/IPC.pm | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/lib/PublicInbox/IPC.pm b/lib/PublicInbox/IPC.pm index 528b9133..39021f42 100644 --- a/lib/PublicInbox/IPC.pm +++ b/lib/PublicInbox/IPC.pm @@ -451,12 +451,18 @@ sub DESTROY { ipc_worker_stop($self); } +# _SC_NPROCESSORS_ONLN = 84 on both Linux glibc and musl, +# emitted using: $^X devel/sysdefs-list +my %NPROCESSORS_ONLN = ( + linux => 84, + freebsd => 58, + openbsd => 503, + netbsd => 1002 +); + sub detect_nproc () { - # _SC_NPROCESSORS_ONLN = 84 on both Linux glibc and musl - return POSIX::sysconf(84) if $^O eq 'linux'; - return POSIX::sysconf(58) if $^O eq 'freebsd'; - return POSIX::sysconf(503) if $^O eq 'openbsd'; - # TODO: more OSes + my $n = $NPROCESSORS_ONLN{$^O}; + return POSIX::sysconf($n) if defined $n; # getconf(1) is POSIX, but *NPROCESSORS* vars are not for (qw(_NPROCESSORS_ONLN NPROCESSORS_ONLN)) { |