1 # Copyright (C) 2020 all contributors <meta@public-inbox.org>
2 # License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
4 # connects public-inbox processes to public-inbox-gcf2(1)
5 package PublicInbox::Gcf2Client;
7 use parent 'PublicInbox::Git';
8 use PublicInbox::Spawn qw(popen_rd);
13 my $self = bless {}, __PACKAGE__;
15 pipe($out_r, $out_w) or $self->fail("pipe failed: $!");
18 @$self{qw(in pid)} = popen_rd(['public-inbox-gcf2'], undef, $rdr);
19 $self->{inflight} = [];
20 $self->{out} = $out_w;
21 fcntl($out_w, 1031, 4096) if $^O eq 'linux'; # 1031: F_SETPIPE_SZ
27 my ($self, $git_dir) = @_;
29 # ensure buffers are drained, length($git_dir) may exceed
30 # PIPE_BUF on platforms where PIPE_BUF is only 512 bytes
31 my $inflight = $self->{inflight};
32 while (scalar(@$inflight)) {
33 $self->cat_async_step($inflight);
35 print { $self->{out} } $git_dir, "\n" or
36 $self->fail("write error: $!");
39 # always false, since -gcf2 retries internally
40 sub alternates_changed {}