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