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75 lines
2.1 KiB
Perl
75 lines
2.1 KiB
Perl
# <@LICENSE>
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# Licensed to the Apache Software Foundation (ASF) under one or more
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# contributor license agreements. See the NOTICE file distributed with
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# this work for additional information regarding copyright ownership.
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# The ASF licenses this file to you under the Apache License, Version 2.0
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# (the "License"); you may not use this file except in compliance with
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# the License. You may obtain a copy of the License at:
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# </@LICENSE>
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package Mail::SpamAssassin::Locker;
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use strict;
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use warnings;
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# use bytes;
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use re 'taint';
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use Fcntl;
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use Time::HiRes ();
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use Mail::SpamAssassin;
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our @ISA = qw();
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###########################################################################
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sub new {
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my $class = shift;
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$class = ref($class) || $class;
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my $self = { };
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bless ($self, $class);
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$self;
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}
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###########################################################################
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sub safe_lock {
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my ($self, $path, $max_retries, $mode) = @_;
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# max_retries is optional, should default to about 30
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# mode is UNIX-style and optional, should default to 0700,
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# callers must specify --x bits
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die "locker: safe_lock not implemented by Locker subclass";
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}
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###########################################################################
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sub safe_unlock {
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my ($self, $path) = @_;
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die "locker: safe_unlock not implemented by Locker subclass";
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}
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###########################################################################
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sub refresh_lock {
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my ($self, $path) = @_;
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die "locker: refresh_lock not implemented by Locker subclass";
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}
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###########################################################################
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sub jittery_one_second_sleep {
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my ($self) = @_;
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Time::HiRes::sleep(rand(1.0) + 0.5);
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}
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###########################################################################
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1;
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