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From: Eric Wong <e@80x24.org>
To: meta@public-inbox.org
Subject: [PATCH 3/7] git: ->fail invokes current callback
Date: Thu, 14 Oct 2021 13:16:05 +0000	[thread overview]
Message-ID: <20211014131609.829-4-e@80x24.org> (raw)
In-Reply-To: <20211014131609.829-1-e@80x24.org>

While we try to invoke all pending callbacks to force error
handling, the current callback wasn't getting invoked on
invoked on async_abort if my_read/my_readline failed.
---
 lib/PublicInbox/Git.pm | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/lib/PublicInbox/Git.pm b/lib/PublicInbox/Git.pm
index 016dd2ae30e9..37342d7d10a4 100644
--- a/lib/PublicInbox/Git.pm
+++ b/lib/PublicInbox/Git.pm
@@ -179,8 +179,8 @@ sub my_readline ($$) {
 	}
 }
 
-sub cat_async_retry ($$$$$) {
-	my ($self, $inflight, $req, $cb, $arg) = @_;
+sub cat_async_retry ($$) {
+	my ($self, $inflight) = @_;
 
 	# {inflight} may be non-existent, but if it isn't we delete it
 	# here to prevent cleanup() from waiting:
@@ -189,12 +189,13 @@ sub cat_async_retry ($$$$$) {
 
 	$self->{inflight} = $inflight;
 	batch_prepare($self);
-	my $buf = "$req\n";
+	my $buf = '';
 	for (my $i = 0; $i < @$inflight; $i += 3) {
 		$buf .= "$inflight->[$i]\n";
 	}
 	print { $self->{out} } $buf or $self->fail("write error: $!");
-	unshift(@$inflight, \$req, $cb, $arg); # \$ref to indicate retried
+	my $req = shift @$inflight;
+	unshift(@$inflight, \$req); # \$ref to indicate retried
 
 	cat_async_step($self, $inflight); # take one step
 }
@@ -202,7 +203,7 @@ sub cat_async_retry ($$$$$) {
 sub cat_async_step ($$) {
 	my ($self, $inflight) = @_;
 	die 'BUG: inflight empty or odd' if scalar(@$inflight) < 3;
-	my ($req, $cb, $arg) = splice(@$inflight, 0, 3);
+	my ($req, $cb, $arg) = @$inflight[0, 1, 2];
 	my $rbuf = delete($self->{rbuf}) // \(my $new = '');
 	my ($bref, $oid, $type, $size);
 	my $head = my_readline($self->{in}, $rbuf);
@@ -217,8 +218,7 @@ sub cat_async_step ($$) {
 		# ref($req) indicates it's already been retried
 		# -gcf2 retries internally, so it never hits this path:
 		if (!ref($req) && !$in_cleanup && $self->alternates_changed) {
-			return cat_async_retry($self, $inflight,
-						$req, $cb, $arg);
+			return cat_async_retry($self, $inflight);
 		}
 		$type = 'missing';
 		$oid = ref($req) ? $$req : $req if $oid eq '';
@@ -227,6 +227,7 @@ sub cat_async_step ($$) {
 		$self->fail("bad result from async cat-file: $head$err");
 	}
 	$self->{rbuf} = $rbuf if $$rbuf ne '';
+	splice(@$inflight, 0, 3); # don't retry $cb on ->fail
 	eval { $cb->($bref, $oid, $type, $size, $arg) };
 	async_err($self, $req, $oid, $@, 'cat') if $@;
 }
@@ -259,7 +260,7 @@ sub cat_file {
 sub check_async_step ($$) {
 	my ($self, $inflight_c) = @_;
 	die 'BUG: inflight empty or odd' if scalar(@$inflight_c) < 3;
-	my ($req, $cb, $arg) = splice(@$inflight_c, 0, 3);
+	my ($req, $cb, $arg) = @$inflight_c[0, 1, 2];
 	my $rbuf = delete($self->{rbuf_c}) // \(my $new = '');
 	chomp(my $line = my_readline($self->{in_c}, $rbuf));
 	my ($hex, $type, $size) = split(/ /, $line);
@@ -273,6 +274,7 @@ sub check_async_step ($$) {
 		$self->fail(defined($ret) ? 'read EOF' : "read: $!") if !$ret;
 	}
 	$self->{rbuf_c} = $rbuf if $$rbuf ne '';
+	splice(@$inflight_c, 0, 3); # don't retry $cb on ->fail
 	eval { $cb->($hex, $type, $size, $arg, $self) };
 	async_err($self, $req, $hex, $@, 'check') if $@;
 }

  parent reply	other threads:[~2021-10-14 13:16 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-14  4:32 [PATCH 0/3] clone+fetch stuff Eric Wong
2021-10-14  4:32 ` [PATCH 1/3] clone+fetch: respect umask for all downloaded files Eric Wong
2021-10-14  4:32 ` [PATCH 2/3] lei add-external --mirror: respect client umask Eric Wong
2021-10-14  4:32 ` [PATCH 3/3] lei: give workers their own process group Eric Wong
2021-10-14 13:16   ` [PATCH 0/7] lei: more process handling fixes Eric Wong
2021-10-14 13:16     ` [PATCH 1/7] lei: use send() perlop for signals Eric Wong
2021-10-14 13:16     ` [PATCH 2/7] git: async_err shows retried requests properly Eric Wong
2021-10-14 13:16     ` Eric Wong [this message]
2021-10-14 13:16     ` [PATCH 4/7] git: cat-file --batch are their own pgrp Eric Wong
2021-10-14 13:16     ` [PATCH 5/7] lei: TSTP affects all curl and related subprocesses Eric Wong
2021-10-14 13:16     ` [PATCH 6/7] lei up: actually rely on DESTROY for --alllll Eric Wong
2021-10-14 13:16     ` [PATCH 7/7] lei up --all: send signals to workers, receive errors Eric Wong

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