user/dev discussion of public-inbox itself
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c0d4d3b35c4a4bbaa5d90c4273eb6cfcc383b6be blob 975 bytes (raw)

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# Copyright (C) 2018-2020 all contributors <meta@public-inbox.org>
# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>

# Base class for per-inbox locking
package PublicInbox::Lock;
use strict;
use warnings;
use Fcntl qw(:flock :DEFAULT);
use Carp qw(croak);

# we only acquire the flock if creating or reindexing;
# PublicInbox::Import already has the lock on its own.
sub lock_acquire {
	my ($self) = @_;
	croak 'already locked' if $self->{lockfh};
	my $lock_path = $self->{lock_path} or return;
	sysopen(my $lockfh, $lock_path, O_WRONLY|O_CREAT) or
		die "failed to open lock $lock_path: $!\n";
	flock($lockfh, LOCK_EX) or die "lock failed: $!\n";
	$self->{lockfh} = $lockfh;
}

sub lock_release {
	my ($self, $wake) = @_;
	return unless $self->{lock_path};
	my $lockfh = delete $self->{lockfh} or croak 'not locked';

	syswrite($lockfh, '.') if $wake;

	flock($lockfh, LOCK_UN) or die "unlock failed: $!\n";
	close $lockfh or die "close failed: $!\n";
}

1;
debug log:

solving c0d4d3b3 ...
found c0d4d3b3 in public-inbox.git

user/dev discussion of public-inbox itself

This inbox may be cloned and mirrored by anyone:

	git clone --mirror https://public-inbox.org/meta
	git clone --mirror http://czquwvybam4bgbro.onion/meta
	git clone --mirror http://hjrcffqmbrq6wope.onion/meta
	git clone --mirror http://ou63pmih66umazou.onion/meta

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V1 meta meta/ https://public-inbox.org/meta \
		meta@public-inbox.org
	public-inbox-index meta

Example config snippet for mirrors.
Newsgroups are available over NNTP:
	nntp://news.public-inbox.org/inbox.comp.mail.public-inbox.meta
	nntp://7fh6tueqddpjyxjmgtdiueylzoqt6pt7hec3pukyptlmohoowvhde4yd.onion/inbox.comp.mail.public-inbox.meta
	nntp://ie5yzdi7fg72h7s4sdcztq5evakq23rdt33mfyfcddc5u3ndnw24ogqd.onion/inbox.comp.mail.public-inbox.meta
	nntp://4uok3hntl7oi7b4uf4rtfwefqeexfzil2w6kgk2jn5z2f764irre7byd.onion/inbox.comp.mail.public-inbox.meta
	nntp://news.gmane.io/gmane.mail.public-inbox.general
 note: .onion URLs require Tor: https://www.torproject.org/

code repositories for project(s) associated with this inbox:

	https://80x24.org/public-inbox.git

AGPL code for this site: git clone https://public-inbox.org/public-inbox.git