Page Speed Optimization Libraries
1.3.25.1
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00001 /* 00002 * Copyright 2010 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_UTIL_PUBLIC_SPLIT_WRITER_H_ 00020 #define NET_INSTAWEB_UTIL_PUBLIC_SPLIT_WRITER_H_ 00021 00022 #include "net/instaweb/util/public/basictypes.h" 00023 #include "net/instaweb/util/public/string_util.h" 00024 #include "net/instaweb/util/public/writer.h" 00025 00026 namespace net_instaweb { 00027 00028 class MessageHandler; 00029 00031 class SplitWriter : public Writer { 00032 public: 00033 SplitWriter(Writer* sub_writer1, Writer* sub_writer2) 00034 : writer1_(sub_writer1), writer2_(sub_writer2) { 00035 } 00036 00037 virtual ~SplitWriter(); 00038 00039 virtual bool Write(const StringPiece& str, MessageHandler* handler) { 00040 bool ret = writer1_->Write(str, handler); 00041 ret &= writer2_->Write(str, handler); 00042 return ret; 00043 } 00044 00045 virtual bool Flush(MessageHandler* handler) { 00046 bool ret = writer1_->Flush(handler); 00047 ret &= writer2_->Flush(handler); 00048 return ret; 00049 } 00050 00051 private: 00052 Writer* writer1_; 00053 Writer* writer2_; 00054 00055 DISALLOW_COPY_AND_ASSIGN(SplitWriter); 00056 }; 00057 00058 } 00059 00060 #endif ///< NET_INSTAWEB_UTIL_PUBLIC_SPLIT_WRITER_H_