# declares a command to spawn (but does not spawn it).
# $cmd is the command to spawn
-# $env is the environ for the child process
+# $cmd_env is the environ for the child process (not PSGI env)
# $opt can include redirects and perhaps other process spawning options
sub new ($$$;) {
- my ($class, $cmd, $env, $opt) = @_;
- bless { args => [ $cmd, $env, $opt ] }, $class;
+ my ($class, $cmd, $cmd_env, $opt) = @_;
+ bless { args => [ $cmd, $cmd_env, $opt ] }, $class;
}
sub _do_spawn {
my ($self, $start_cb, $limiter) = @_;
my $err;
- my ($cmd, $env, $opts) = @{$self->{args}};
+ my ($cmd, $cmd_env, $opts) = @{$self->{args}};
my %opts = %{$opts || {}};
$self->{limiter} = $limiter;
foreach my $k (PublicInbox::Spawn::RLIMITS()) {
}
}
- ($self->{rpipe}, $self->{pid}) = popen_rd($cmd, $env, \%opts);
+ ($self->{rpipe}, $self->{pid}) = popen_rd($cmd, $cmd_env, \%opts);
# drop any IO handles opt was holding open via $opt->{hold}
# No need to hold onto the descriptor once the child process has it.
$err = "W: waitpid($xpid, 0) => $pid: $!";
} # else should not be called with pid == 0
- my $env = delete $self->{env};
+ my $env = delete $self->{psgi_env};
# done, spawn whatever's in the queue
my $limiter = $self->{limiter};
}
}
- return unless $err;
- $self->{err} = $err;
- if ($env && !$env->{'qspawn.quiet'}) {
- log_err($env, join(' ', @{$self->{args}}) . ": $err");
+ if ($err) {
+ $self->{err} = $err;
+ if ($env && !$env->{'qspawn.quiet'}) {
+ log_err($env, join(' ', @{$self->{args}}) . ": $err");
+ }
+ }
+ if (my $fin_cb = delete $self->{fin_cb}) {
+ eval { $fin_cb->() }
}
}
-sub do_waitpid ($;$) {
- my ($self, $env) = @_;
+sub do_waitpid ($;$$) {
+ my ($self, $fin_cb) = @_;
my $pid = $self->{pid};
- $self->{env} = $env;
+ $self->{fin_cb} = $fin_cb;
# PublicInbox::DS may not be loaded
eval { PublicInbox::DS::dwaitpid($pid, \&waitpid_err, $self) };
# done if we're running in PublicInbox::DS::EventLoop
}
sub finish ($;$) {
- my ($self, $env) = @_;
+ my ($self, $fin_cb) = @_;
if (delete $self->{rpipe}) {
- do_waitpid($self, $env);
+ do_waitpid($self, $fin_cb);
+ } elsif ($fin_cb) {
+ eval { $fin_cb->() };
}
}
# $env is the PSGI env. As with ``/qx; only use this when output is small
# and safe to slurp.
sub psgi_qx {
- my ($self, $env, $limiter, $qx_cb) = @_;
+ my ($self, $env, $limiter, $qx_cb, $cb_arg) = @_;
+ $self->{psgi_env} = $env;
my $scalar = '';
open(my $qx, '+>', \$scalar) or die; # PerlIO::scalar
my $end = sub {
my $err = $_[0]; # $!
log_err($env, "psgi_qx: $err") if defined($err);
- finish($self, $env);
- eval { $qx_cb->(\$scalar) };
- $qx = $scalar = undef;
+ finish($self, sub { $qx_cb->(\$scalar, $cb_arg) });
+ $qx = undef;
};
my $rpipe; # comes from popen_rd
my $async = $env->{'pi-httpd.async'};
($rpipe) = @_; # popen_rd result
if ($async) {
# PublicInbox::HTTPD::Async->new($rpipe, $cb, $end)
- $async = $async->($rpipe, $cb, $end);
+ $async = $async->($rpipe, $cb, undef, $end);
# $cb will call ->async_pass or ->close
} else { # generic PSGI
$cb->() while $qx;
# immediately (or streamed via ->getline (pull-based)).
sub psgi_return {
my ($self, $env, $limiter, $parse_hdr) = @_;
+ $self->{psgi_env} = $env;
my ($fh, $rpipe);
my $end = sub {
my $err = $_[0]; # $!
log_err($env, "psgi_return: $err") if defined($err);
- finish($self, $env);
+ finish($self);
$fh->close if $fh; # async-only
};
($rpipe) = @_;
if ($async) {
# PublicInbox::HTTPD::Async->new($rpipe, $cb, $end)
- $async = $async->($rpipe, $cb, $end);
+ $async = $async->($rpipe, $cb, undef, $end);
# $cb will call ->async_pass or ->close
} else { # generic PSGI
$cb->() while $rd_hdr;