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# <@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; our @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); } sub jittery_half_second_sleep { my ($self) = @_; Time::HiRes::sleep(rand(0.5) + 0.25); } ########################################################################### 1;