Page Speed Optimization Libraries
1.7.30.4
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00001 /* 00002 * Copyright 2012 Google Inc. 00003 * 00004 * Licensed under the Apache License, Version 2.0 (the "License"); 00005 * you may not use this file except in compliance with the License. 00006 * You may obtain a copy of the License at 00007 * 00008 * http:///www.apache.org/licenses/LICENSE-2.0 00009 * 00010 * Unless required by applicable law or agreed to in writing, software 00011 * distributed under the License is distributed on an "AS IS" BASIS, 00012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00013 * See the License for the specific language governing permissions and 00014 * limitations under the License. 00015 */ 00016 00018 00019 #ifndef NET_INSTAWEB_HTTP_PUBLIC_RATE_CONTROLLING_URL_ASYNC_FETCHER_H_ 00020 #define NET_INSTAWEB_HTTP_PUBLIC_RATE_CONTROLLING_URL_ASYNC_FETCHER_H_ 00021 00022 #include "net/instaweb/http/public/url_async_fetcher.h" 00023 #include "net/instaweb/util/public/basictypes.h" 00024 #include "net/instaweb/util/public/scoped_ptr.h" 00025 #include "net/instaweb/util/public/string.h" 00026 00027 namespace net_instaweb { 00028 00029 class AsyncFetch; 00030 class MessageHandler; 00031 class RateController; 00032 class Statistics; 00033 class ThreadSystem; 00034 00038 class RateControllingUrlAsyncFetcher : public UrlAsyncFetcher { 00039 public: 00043 RateControllingUrlAsyncFetcher(UrlAsyncFetcher* fetcher, 00044 int max_global_queue_size, 00045 int per_host_outgoing_request_threshold, 00046 int per_host_queued_request_threshold, 00047 ThreadSystem* thread_system, 00048 Statistics* statistics); 00049 00050 virtual ~RateControllingUrlAsyncFetcher(); 00051 00052 virtual bool SupportsHttps() const { 00053 return base_fetcher_->SupportsHttps(); 00054 } 00055 00056 virtual void Fetch(const GoogleString& url, 00057 MessageHandler* message_handler, 00058 AsyncFetch* fetch); 00059 00060 virtual void ShutDown(); 00061 00062 private: 00063 UrlAsyncFetcher* base_fetcher_; 00064 scoped_ptr<RateController> rate_controller_; 00065 00066 DISALLOW_COPY_AND_ASSIGN(RateControllingUrlAsyncFetcher); 00067 }; 00068 00069 } 00070 00071 #endif ///< NET_INSTAWEB_HTTP_PUBLIC_RATE_CONTROLLING_URL_ASYNC_FETCHER_H_