1 # Copyright (C) 2016 all contributors <meta@public-inbox.org>
2 # License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
3 package PublicInbox::SpawnPP;
6 use POSIX qw(dup2 :signal_h);
8 # Pure Perl implementation for folks that do not use Inline::C
9 sub public_inbox_fork_exec ($$$$$$) {
10 my ($in, $out, $err, $f, $cmd, $env) = @_;
11 my $old = POSIX::SigSet->new();
12 my $set = POSIX::SigSet->new();
13 $set->fillset or die "fillset failed: $!";
14 sigprocmask(SIG_SETMASK, $set, $old) or die "can't block signals: $!";
17 unless (defined $pid) { # compat with Inline::C version
23 dup2($in, 0) or die "dup2 failed for stdin: $!";
26 dup2($out, 1) or die "dup2 failed for stdout: $!";
29 dup2($err, 2) or die "dup2 failed for stderr: $!";
33 exec qw(env -i), @$env, @$cmd;
34 die "exec env -i ... $cmd->[0] failed: $!\n";
36 local %ENV = map { split(/=/, $_, 2) } @$env;
38 die "exec $cmd->[0] failed: $!\n";
41 sigprocmask(SIG_SETMASK, $old) or die "can't unblock signals: $!";