Page Speed Optimization Libraries
1.5.27.2
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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_REQUEST_CONTEXT_H_ 00020 #define NET_INSTAWEB_HTTP_PUBLIC_REQUEST_CONTEXT_H_ 00021 00022 #include "net/instaweb/util/public/basictypes.h" 00023 #include "net/instaweb/util/public/ref_counted_ptr.h" 00024 #include "net/instaweb/util/public/scoped_ptr.h" 00025 #include "net/instaweb/util/public/string_util.h" 00026 00027 namespace net_instaweb { 00028 00029 class AbstractLogRecord; 00030 class AbstractMutex; 00031 class RequestContext; 00032 class RequestTrace; 00033 class ThreadSystem; 00034 class Timer; 00035 00036 typedef RefCountedPtr<RequestContext> RequestContextPtr; 00037 00045 class RequestContext : public RefCounted<RequestContext> { 00046 public: 00052 explicit RequestContext(AbstractMutex* logging_mutex, Timer* timer); 00053 00056 static RequestContextPtr NewTestRequestContext(ThreadSystem* thread_system); 00057 00061 virtual AbstractLogRecord* NewSubordinateLogRecord( 00062 AbstractMutex* logging_mutex); 00063 00068 RequestTrace* root_trace_context() { return root_trace_context_.get(); } 00070 void set_root_trace_context(RequestTrace* x); 00071 00082 virtual RequestTrace* CreateDependentTraceContext(const StringPiece& label) { 00083 return NULL; 00084 } 00085 00097 virtual void ReleaseDependentTraceContext(RequestTrace* t); 00098 00100 virtual AbstractLogRecord* log_record(); 00101 00103 bool using_spdy() const { return using_spdy_; } 00104 void set_using_spdy(bool x) { using_spdy_ = x; } 00105 00109 void PrepareLogRecordForOutput(); 00110 00112 void WriteBackgroundRewriteLog(); 00113 00116 AbstractLogRecord* GetBackgroundRewriteLog( 00117 ThreadSystem* thread_system, 00118 bool log_urls, 00119 bool log_url_indices, 00120 int max_rewrite_info_log_size); 00121 00123 class TimingInfo { 00124 public: 00127 TimingInfo(); 00128 00132 void Init(Timer* timer); 00133 00137 void RequestStarted(); 00138 00141 void RequestFinished(); 00142 00146 void FetchStarted(); 00147 void FetchFirstByteReceived(); 00148 void FetchHeaderReceived(); 00149 void FetchFinished(); 00150 00152 int64 GetElapsedMs() const; 00153 00155 int64 GetElapsedFromFetchStart(); 00156 00158 int64 init_ts_ms() const { 00159 return init_ts_ms_; 00160 } 00161 00162 int64 start_ts_ms() const { 00163 return start_ts_ms_; 00164 } 00165 00167 int64 fetch_start_ms() const { return fetch_start_ts_ms_ - start_ts_ms_; } 00168 00169 int64 fetch_first_byte_ms() const { return fetch_first_byte_ms_; } 00170 00172 int64 fetch_header_ms() const { return fetch_header_ms_; } 00173 00175 int64 fetch_elapsed_ms() const { return fetch_elapsed_ms_; } 00176 00178 int64 processing_elapsed_ms() const { return processing_elapsed_ms_; } 00179 00180 private: 00181 int64 NowMs() const; 00182 00183 Timer* timer_; 00184 00186 int64 init_ts_ms_; 00187 00188 int64 start_ts_ms_; 00189 00190 int64 fetch_start_ts_ms_; 00191 00194 int64 fetch_first_byte_ms_; 00195 int64 fetch_header_ms_; 00196 int64 fetch_elapsed_ms_; 00197 00198 int64 processing_elapsed_ms_; 00199 00200 DISALLOW_COPY_AND_ASSIGN(TimingInfo); 00201 }; 00202 00203 const TimingInfo& timing_info() const { return timing_info_; } 00204 TimingInfo* mutable_timing_info() { return &timing_info_; } 00205 00206 protected: 00210 RequestContext(); 00212 virtual ~RequestContext(); 00213 REFCOUNT_FRIEND_DECLARATION(RequestContext); 00214 00215 private: 00217 scoped_ptr<AbstractLogRecord> log_record_; 00218 00219 TimingInfo timing_info_; 00220 00222 scoped_ptr<RequestTrace> root_trace_context_; 00223 00225 scoped_ptr<AbstractLogRecord> background_rewrite_log_record_; 00226 00227 bool using_spdy_; 00228 00229 DISALLOW_COPY_AND_ASSIGN(RequestContext); 00230 }; 00231 00232 } 00233 00234 #endif ///< NET_INSTAWEB_HTTP_PUBLIC_REQUEST_CONTEXT_H_