gzip_filter: ->translate can reuse zmore/zflush

We can work towards delaying zlib context allocations in future
commits, too.

1 files changed, 4 insertions, 11 deletions

diff --git a/lib/PublicInbox/GzipFilter.pm b/lib/PublicInbox/GzipFilter.pm
index 75ba625e..77d570b6 100644
--- a/lib/PublicInbox/GzipFilter.pm
+++ b/lib/PublicInbox/GzipFilter.pm
@@ -100,19 +100,12 @@ sub translate ($$) {
         # allocate the zlib context lazily here, instead of in ->new.
         # Deflate contexts are memory-intensive and this object may
         # be sitting in the Qspawn limiter queue for a while.
-        my $gz = $self->{gz} //= gzip_or_die();
-        my $zbuf = delete($self->{zbuf});
+        $self->{gz} //= gzip_or_die();
         if (defined $_[1]) { # my $buf = $_[1];
-                my $err = $gz->deflate($_[1], $zbuf);
-                die "gzip->deflate: $err" if $err != Z_OK;
-                return $zbuf if length($zbuf) >= 8192;
-
-                $self->{zbuf} = $zbuf;
-                '';
+                zmore($self, $_[1]);
+                length($self->{zbuf}) >= 8192 ? delete($self->{zbuf}) : '';
         } else { # undef == EOF
-                my $err = $gz->flush($zbuf);
-                die "gzip->flush: $err" if $err != Z_OK;
-                $zbuf;
+                zflush($self);
         }
 }