user/dev discussion of public-inbox itself
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From: Eric Wong <e@80x24.org>
To: meta@public-inbox.org
Subject: [PATCH 26/26] xapcmd: do not reset %SIG until last Xtmpdir is done
Date: Thu, 23 May 2019 09:37:04 +0000
Message-ID: <20190523093704.18367-27-e@80x24.org> (raw)
In-Reply-To: <20190523093704.18367-1-e@80x24.org>

To properly handle compact tmpdir cleanup in single process
situations, we need to carefully account for Xtmpdir not
being a singleton and ensuring we don't clobber signal
handlers which belong to other Xtmpdirs.
---
 lib/PublicInbox/Xapcmd.pm | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/lib/PublicInbox/Xapcmd.pm b/lib/PublicInbox/Xapcmd.pm
index a294d53..999819c 100644
--- a/lib/PublicInbox/Xapcmd.pm
+++ b/lib/PublicInbox/Xapcmd.pm
@@ -22,6 +22,8 @@ sub commit_changes ($$$) {
 	my $im = $ibx->importer(0);
 	$im->lock_acquire if !$opt->{-coarse_lock};
 
+	$SIG{INT} or die 'BUG: $SIG{INT} not handled';
+
 	while (my ($old, $new) = each %$tmp) {
 		my @st = stat($old) or die "failed to stat($old): $!\n";
 
@@ -346,7 +348,12 @@ sub new {
 sub done {
 	my ($self) = @_;
 	delete $owner{"$self"};
-	$SIG{INT} = $SIG{HUP} = $SIG{PIPE} = $SIG{TERM} = 'DEFAULT';
+
+	my %known_pids;
+	$known_pids{$_}++ foreach values %owner;
+	if (!$known_pids{$$}) {
+		$SIG{INT} = $SIG{HUP} = $SIG{PIPE} = $SIG{TERM} = 'DEFAULT';
+	}
 	%$self = ();
 }
 
@@ -357,7 +364,7 @@ sub DESTROY {
 	foreach my $new (values %$self) {
 		remove_tree($new) unless -d "$new/old";
 	}
-	$SIG{INT} = $SIG{HUP} = $SIG{PIPE} = $SIG{TERM} = 'DEFAULT';
+	done($self);
 }
 
 1;
-- 
EW


  parent reply index

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-23  9:36 [PATCH 00/26] xcpdb: ease Xapian DB format migrations Eric Wong
2019-05-23  9:36 ` [PATCH 01/26] t/convert-compact: skip on missing xapian-compact(1) Eric Wong
2019-05-23  9:36 ` [PATCH 02/26] v1writable: retire in favor of InboxWritable Eric Wong
2019-05-23  9:36 ` [PATCH 03/26] doc: document the reason for --no-renumber Eric Wong
2019-05-23  9:36 ` [PATCH 04/26] search: reenable phrase search on non-chert Xapian Eric Wong
2019-05-23  9:36 ` [PATCH 05/26] xapcmd: new module for wrapping Xapian commands Eric Wong
2019-05-23  9:36 ` [PATCH 06/26] admin: hoist out resolve_inboxes for -compact and -index Eric Wong
2019-05-23  9:36 ` [PATCH 07/26] xapcmd: support spawn options Eric Wong
2019-05-23  9:36 ` [PATCH 08/26] xcpdb: new tool which wraps Xapian's copydatabase(1) Eric Wong
2019-05-23  9:36 ` [PATCH 09/26] xapcmd: do not cleanup on errors Eric Wong
2019-05-23  9:36 ` [PATCH 10/26] admin: move index_inbox over Eric Wong
2019-05-23  9:36 ` [PATCH 11/26] xcpdb: implement using Perl bindings Eric Wong
2019-05-23  9:36 ` [PATCH 12/26] xapcmd: xcpdb supports compaction Eric Wong
2019-05-23  9:36 ` [PATCH 13/26] v2writable: hoist out log_range sub for readability Eric Wong
2019-05-23  9:36 ` [PATCH 14/26] xcpdb: use fine-grained locking Eric Wong
2019-05-23  9:36 ` [PATCH 15/26] xcpdb: implement progress reporting Eric Wong
2019-05-23  9:36 ` [PATCH 16/26] xcpdb: cleanup error handling and diagnosis Eric Wong
2019-05-23  9:36 ` [PATCH 17/26] xapcmd: avoid EXDEV when finalizing changes Eric Wong
2019-05-23  9:36 ` [PATCH 18/26] doc: xcpdb: update to reflect the current state Eric Wong
2019-05-23  9:36 ` [PATCH 19/26] xapcmd: use "print STDERR" for progress reporting Eric Wong
2019-05-23  9:36 ` [PATCH 20/26] xcpdb: show re-indexing progress Eric Wong
2019-05-23  9:36 ` [PATCH 21/26] xcpdb: remove temporary directories on aborts Eric Wong
2019-05-23  9:37 ` [PATCH 22/26] compact: reuse infrastructure from xcpdb Eric Wong
2019-05-23  9:37 ` [PATCH 23/26] xcpdb|compact: support some xapian-compact switches Eric Wong
2019-05-23  9:37 ` [PATCH 24/26] xapcmd: cleanup on interrupted xcpdb "--compact" Eric Wong
2019-05-23  9:37 ` [PATCH 25/26] xcpdb|compact: support --jobs/-j flag like gmake(1) Eric Wong
2019-05-23  9:37 ` Eric Wong [this message]
2019-05-23 10:37 ` [PATCH 27/26] doc: various updates to reflect current state Eric Wong

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