use PublicInbox::Spawn qw(which spawn popen_rd);
use PublicInbox::LeiDedupe;
use PublicInbox::OnDestroy;
+use PublicInbox::Git;
+use PublicInbox::GitAsyncCat;
use Symbol qw(gensym);
use IO::Handle; # ->autoflush
use Fcntl qw(SEEK_SET SEEK_END O_CREAT O_EXCL O_WRONLY);
-use Errno qw(EEXIST ESPIPE ENOENT);
-use PublicInbox::Git;
+use Errno qw(EEXIST ESPIPE ENOENT EPIPE);
+
+# struggles with short-lived repos, Gcf2Client makes little sense with lei;
+# but we may use in-process libgit2 in the future.
+$PublicInbox::GitAsyncCat::GCF2C = 0;
my %kw2char = ( # Maildir characters
draft => 'D',
}
sub atomic_append { # for on-disk destinations (O_APPEND, or O_EXCL)
- my ($fh, $buf) = @_;
- defined(my $w = syswrite($fh, $$buf)) or die "write: $!";
- $w == length($$buf) or die "short write: $w != ".length($$buf);
-}
-
-sub _print_full {
- my ($fh, $buf) = @_;
- print $fh $$buf or die "print: $!";
+ my ($lei, $buf) = @_;
+ if (defined(my $w = syswrite($lei->{1} // return, $$buf))) {
+ return if $w == length($$buf);
+ $buf = "short atomic write: $w != ".length($$buf);
+ } elsif ($! == EPIPE) {
+ return $lei->note_sigpipe(1);
+ } else {
+ $buf = "atomic write: $!";
+ }
+ $lei->fail($buf);
}
sub eml2mboxrd ($;$) {
my $ovv = $lei->{ovv};
my $m = 'eml2'.$ovv->{fmt};
my $eml2mbox = $self->can($m) or die "$self->$m missing";
- my $out = $lei->{1} // die "no stdout ($m, $ovv->{dst})"; # redirected earlier
- $out->autoflush(1);
- my $write = $ovv->{lock_path} ? \&_print_full : \&atomic_append;
+ $lei->{1} // die "no stdout ($m, $ovv->{dst})"; # redirected earlier
+ $lei->{1}->autoflush(1);
+ my $atomic_append = !defined($ovv->{lock_path});
my $dedupe = $lei->{dedupe};
$dedupe->prepare_dedupe;
sub { # for git_to_mail
my ($buf, $smsg, $eml) = @_;
- return unless $out;
$eml //= PublicInbox::Eml->new($buf);
- if (!$dedupe->is_dup($eml, $smsg->{blob})) {
- $buf = $eml2mbox->($eml, $smsg);
- my $lk = $ovv->lock_for_scope;
- eval { $write->($out, $buf) };
- if ($@) {
- die $@ if ref($@) ne 'PublicInbox::SIGPIPE';
- undef $out
- }
- }
+ return if $dedupe->is_dup($eml, $smsg->{blob});
+ $buf = $eml2mbox->($eml, $smsg);
+ return atomic_append($lei, $buf) if $atomic_append;
+ my $lk = $ovv->lock_for_scope;
+ $lei->out($$buf);
}
}
my $kw = $smsg->{kw} // [];
my $sfx = join('', sort(map { $kw2char{$_} // () } @$kw));
my $rand = ''; # chosen by die roll :P
- my ($tmp, $fh, $final);
+ my ($tmp, $fh, $final, $ok);
my $common = $smsg->{blob} // _rand;
if (defined(my $pct = $smsg->{pct})) { $common .= "=$pct" }
do {
$tmp = $dst.'tmp/'.$rand.$common;
- } while (!sysopen($fh, $tmp, O_CREAT|O_EXCL|O_WRONLY) &&
+ } while (!($ok = sysopen($fh, $tmp, O_CREAT|O_EXCL|O_WRONLY)) &&
$! == EEXIST && ($rand = _rand.','));
- if (print $fh $$buf and close($fh)) {
+ if ($ok && print $fh $$buf and close($fh)) {
# ignore new/ and write only to cur/, otherwise MUAs
# with R/W access to the Maildir will end up doing
# a mass rename which can take a while with thousands
($rand = _rand.','));
unlink($tmp) or warn "W: failed to unlink $tmp: $!\n";
} else {
- my $err = $!;
+ my $err = "Error writing $smsg->{blob} to $dst: $!\n";
+ $_[0] = undef; # clobber dst
unlink($tmp);
- die "Error writing $smsg->{blob} to $dst: $err";
+ die $err;
}
}
my $dst = $lei->{ovv}->{dst};
sub { # for git_to_mail
my ($buf, $smsg, $eml) = @_;
+ $dst // return $lei->fail; # dst may be undef-ed in last run
$buf //= \($eml->as_string);
return _buf2maildir($dst, $buf, $smsg) if !$dedupe;
$eml //= PublicInbox::Eml->new($$buf); # copy buf
my ($self, $git_dir, $smsg, $lei) = @_;
my $not_done = delete $self->{$lei->{each_smsg_not_done}};
my $wcb = $self->{wcb} //= do { # first message
- my %sig = $lei->atfork_child_wq($self);
- @SIG{keys %sig} = values %sig; # not local
+ $lei->atfork_child_wq($self);
$self->write_cb($lei);
};
my $git = $self->{"$$\0$git_dir"} //= PublicInbox::Git->new($git_dir);
- $git->cat_async($smsg->{blob}, \&git_to_mail, [$wcb, $smsg, $not_done]);
+ git_async_cat($git, $smsg->{blob}, \&git_to_mail,
+ [$wcb, $smsg, $not_done]);
}
-# We rely on OnDestroy to run this before ->DESTROY, since ->DESTROY
-# ordering is unstable at worker exit and may cause segfaults
-sub reap_gits {
+sub wq_atexit_child {
my ($self) = @_;
delete $self->{wcb};
for my $git (delete @$self{grep(/\A$$\0/, keys %$self)}) {
$git->async_wait_all;
}
-}
-
-sub DESTROY { delete $_[0]->{wcb} }
-
-sub ipc_atfork_child { # runs after IPC::wq_worker_loop
- my ($self) = @_;
- $self->SUPER::ipc_atfork_child;
- # reap_gits needs to run before $self->DESTROY,
- # IPC.pm will ensure that.
- PublicInbox::OnDestroy->new($$, \&reap_gits, $self);
+ $SIG{__WARN__} = 'DEFAULT';
}
1;