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# Copyright (C) 2020-2021 all contributors <meta@public-inbox.org>
# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
package PublicInbox::EOFpipe;
use strict;
use parent qw(PublicInbox::DS);
use PublicInbox::Syscall qw(EPOLLIN EPOLLONESHOT);
sub new {
my (undef, $rd, $cb, $arg) = @_;
my $self = bless { cb => $cb, arg => $arg }, __PACKAGE__;
# 1031: F_SETPIPE_SZ, 4096: page size
fcntl($rd, 1031, 4096) if $^O eq 'linux';
$self->SUPER::new($rd, EPOLLIN|EPOLLONESHOT);
}
sub event_step {
my ($self) = @_;
if ($self->do_read(my $buf, 1) == 0) { # auto-closed
$self->{cb}->($self->{arg});
}
}
1;
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