1 files changed, 2 insertions, 20 deletions
diff --git a/lib/PublicInbox/V2Writable.pm b/lib/PublicInbox/V2Writable.pm
index 35b7fe30..cbd4f003 100644
--- a/lib/PublicInbox/V2Writable.pm
+++ b/lib/PublicInbox/V2Writable.pm
@@ -8,6 +8,7 @@ use strict;
  use v5.10.1;
  use parent qw(PublicInbox::Lock);
  use PublicInbox::SearchIdxShard;
+use PublicInbox::IPC;
  use PublicInbox::Eml;
  use PublicInbox::Git;
  use PublicInbox::Import;
@@ -35,32 +36,13 @@ our $PACKING_FACTOR = 0.4;
  # to increase Xapian shards
  our $NPROC_MAX_DEFAULT = 4;
  
-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';
-        # TODO: more OSes
-
-        # getconf(1) is POSIX, but *NPROCESSORS* vars are not
-        for (qw(_NPROCESSORS_ONLN NPROCESSORS_ONLN)) {
-                `getconf $_ 2>/dev/null` =~ /^(\d+)$/ and return $1;
-        }
-        for my $nproc (qw(nproc gnproc)) { # GNU coreutils nproc
-                `$nproc 2>/dev/null` =~ /^(\d+)$/ and return $1;
-        }
-
-        # should we bother with `sysctl hw.ncpu`?  Those only give
-        # us total processor count, not online processor count.
-        undef
-}
-
  sub nproc_shards ($) {
          my ($creat_opt) = @_;
          my $n = $creat_opt->{nproc} if ref($creat_opt) eq 'HASH';
          $n //= $ENV{NPROC};
          if (!$n) {
                  # assume 2 cores if not detectable or zero
-                state $NPROC_DETECTED = detect_nproc() || 2;
+                state $NPROC_DETECTED = PublicInbox::IPC::detect_nproc() || 2;
                  $n = $NPROC_DETECTED;
                  $n = $NPROC_MAX_DEFAULT if $n > $NPROC_MAX_DEFAULT;
          }