-# Copyright (C) 2016-2019 all contributors <meta@public-inbox.org>
+# Copyright (C) 2016-2020 all contributors <meta@public-inbox.org>
# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
# Like most Perl modules in public-inbox, this is internal and
sub _do_spawn {
my ($self, $start_cb, $limiter) = @_;
my $err;
- my ($cmd, $cmd_env, $opts) = @{$self->{args}};
- my %opts = %{$opts || {}};
+ my ($cmd, $cmd_env, $opt) = @{$self->{args}};
+ my %o = %{$opt || {}};
$self->{limiter} = $limiter;
foreach my $k (PublicInbox::Spawn::RLIMITS()) {
if (defined(my $rlimit = $limiter->{$k})) {
- $opts{$k} = $rlimit;
+ $o{$k} = $rlimit;
}
}
+ eval {
+ # popen_rd may die on EMFILE, ENFILE
+ ($self->{rpipe}, $self->{pid}) = popen_rd($cmd, $cmd_env, \%o);
+ $self->{args} = $o{quiet} ? undef : $cmd;
- ($self->{rpipe}, $self->{pid}) = popen_rd($cmd, $cmd_env, \%opts);
+ die "E: $!" unless defined($self->{pid});
- # drop any IO handles opt was holding open via $opt->{hold}
- # No need to hold onto the descriptor once the child process has it.
- $self->{args} = $cmd; # keep this around for logging
-
- if (defined $self->{pid}) {
$limiter->{running}++;
- } else {
- $self->{err} = $!;
+ $start_cb->($self); # EPOLL_CTL_ADD may ENOSPC/ENOMEM
+ };
+ if ($@) {
+ $self->{err} = $@;
+ finish($self);
}
- $start_cb->($self);
}
sub child_err ($) {
}
if ($err) {
- $self->{err} = $err;
- if ($env && !$env->{'qspawn.quiet'}) {
+ if ($self->{err}) {
+ $self->{err} .= "; $err";
+ } else {
+ $self->{err} = $err;
+ }
+ if ($env && $self->{args}) {
log_err($env, join(' ', @{$self->{args}}) . ": $err");
}
}
$async->async_pass($self->{psgi_env}->{'psgix.io'},
$qx_fh, \$buf);
} elsif (defined $r) {
- $r ? $qx_fh->write($buf) : event_step($self, undef);
+ $r ? (print $qx_fh $buf) : event_step($self, undef);
} else {
return if $! == EAGAIN; # try again when notified
goto reread if $! == EINTR;
my $ret;
my $total_rd = 0;
my $hdr_buf = $self->{hdr_buf};
+ my ($ph_cb, $ph_arg) = @{$self->{parse_hdr}};
do {
my $r = sysread($self->{rpipe}, $$hdr_buf, 4096,
length($$hdr_buf));
if (defined($r)) {
$total_rd += $r;
- $ret = $self->{parse_hdr}->($total_rd, $hdr_buf);
+ $ret = $ph_cb->($total_rd, $hdr_buf, $ph_arg);
} else {
# caller should notify us when it's ready:
return if $! == EAGAIN;
# psgix.io. 3-element arrays means the body is available
# immediately (or streamed via ->getline (pull-based)).
sub psgi_return {
- my ($self, $env, $limiter, $parse_hdr) = @_;
+ my ($self, $env, $limiter, $parse_hdr, $hdr_arg) = @_;
$self->{psgi_env} = $env;
$self->{hdr_buf} = \(my $hdr_buf = '');
- $self->{parse_hdr} = $parse_hdr;
+ $self->{parse_hdr} = [ $parse_hdr, $hdr_arg ];
$limiter ||= $def_limiter ||= PublicInbox::Qspawn::Limiter->new(32);
# the caller already captured the PSGI write callback from