searchidxshard: rely on autoflush instead of ->flush

It reduces the number of ops and simplifies the code, slightly.
Add a missing IO::Handle import while we're at it, to be
explicit about which methods we use.

diff --git a/lib/PublicInbox/SearchIdxShard.pm b/lib/PublicInbox/SearchIdxShard.pm
index b22e51dcdbb408f04effaa83d156d0f9fbe45a81..0522eceae13ada18cd57819ebdc0c1fb12325fe0 100644 (file)
--- a/lib/PublicInbox/SearchIdxShard.pm
+++ b/lib/PublicInbox/SearchIdxShard.pm
@@ -7,6 +7,7 @@ package PublicInbox::SearchIdxShard;
 use strict;
 use warnings;
 use base qw(PublicInbox::SearchIdx);
+use IO::Handle (); # autoflush
 
 sub new {
        my ($class, $v2writable, $shard) = @_;
@@ -24,6 +25,7 @@ sub spawn_worker {
        pipe($r, $w) or die "pipe failed: $!\n";
        binmode $r, ':raw';
        binmode $w, ':raw';
+       $w->autoflush(1);
        my $pid = fork;
        defined $pid or die "fork failed: $!\n";
        if ($pid == 0) {
@@ -83,7 +85,6 @@ sub index_raw {
        if (my $w = $self->{w}) {
                print $w "$bytes $artnum $oid $mid0\n", $$msgref or die
                        "failed to write shard $!\n";
-               $w->flush or die "failed to flush: $!\n";
        } else {
                $$msgref = undef;
                $self->begin_txn_lazy;
@@ -100,7 +101,6 @@ sub remote_barrier {
        my ($self) = @_;
        if (my $w = $self->{w}) {
                print $w "barrier\n" or die "failed to print: $!";
-               $w->flush or die "failed to flush: $!";
        } else {
                $self->commit_txn_lazy;
        }