| /* |
| 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. |
| */ |
| |
| /** |
| * @file fetch_policy_simple.cc |
| * @brief Simple fetch policy. |
| */ |
| |
| #include "fetch_policy_simple.h" |
| |
| bool |
| FetchPolicySimple::init(const char *parameters) |
| { |
| PrefetchDebug("initialized %s fetch policy", name()); |
| return true; |
| } |
| |
| bool |
| FetchPolicySimple::acquire(const std::string &url) |
| { |
| bool ret; |
| if (_urls.end() == _urls.find(url)) { |
| _urls[url] = true; |
| ret = true; |
| } else { |
| ret = false; |
| } |
| |
| log("acquire", url, ret); |
| return ret; |
| } |
| |
| bool |
| FetchPolicySimple::release(const std::string &url) |
| { |
| bool ret; |
| if (_urls.end() == _urls.find(url)) { |
| ret = false; |
| } else { |
| _urls.erase(url); |
| ret = true; |
| } |
| |
| log("release", url, ret); |
| return ret; |
| } |
| |
| inline const char * |
| FetchPolicySimple::name() |
| { |
| return "simple"; |
| } |
| |
| inline size_t |
| FetchPolicySimple::getSize() |
| { |
| return _urls.size(); |
| } |
| |
| inline size_t |
| FetchPolicySimple::getMaxSize() |
| { |
| /* Unlimited */ |
| return 0; |
| } |