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			131 lines
		
	
	
		
			4.5 KiB
		
	
	
	
		
			C++
		
	
			
		
		
	
	
			131 lines
		
	
	
		
			4.5 KiB
		
	
	
	
		
			C++
		
	
/*
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 *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
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 *
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 *  Use of this source code is governed by a BSD-style license
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 *  that can be found in the LICENSE file in the root of the source
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 *  tree. An additional intellectual property rights grant can be found
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 *  in the file PATENTS.  All contributing project authors may
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 *  be found in the AUTHORS file in the root of the source tree.
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 */
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#ifndef WEBRTC_SYSTEM_WRAPPERS_SOURCE_TRACE_IMPL_H_
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#define WEBRTC_SYSTEM_WRAPPERS_SOURCE_TRACE_IMPL_H_
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#include "webrtc/system_wrappers/interface/critical_section_wrapper.h"
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#include "webrtc/system_wrappers/interface/event_wrapper.h"
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#include "webrtc/system_wrappers/interface/file_wrapper.h"
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#include "webrtc/system_wrappers/interface/static_instance.h"
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#include "webrtc/system_wrappers/interface/thread_wrapper.h"
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#include "webrtc/system_wrappers/interface/trace.h"
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namespace webrtc {
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// TODO(pwestin) WEBRTC_TRACE_MAX_QUEUE needs to be tweaked
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// TODO(hellner) the buffer should be close to how much the system can write to
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//               file. Increasing the buffer will not solve anything. Sooner or
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//               later the buffer is going to fill up anyways.
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#if defined(WEBRTC_IOS)
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#define WEBRTC_TRACE_MAX_QUEUE  2000
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#else
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#define WEBRTC_TRACE_MAX_QUEUE  8000
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#endif
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#define WEBRTC_TRACE_NUM_ARRAY 2
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#define WEBRTC_TRACE_MAX_MESSAGE_SIZE 256
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// Total buffer size is WEBRTC_TRACE_NUM_ARRAY (number of buffer partitions) *
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// WEBRTC_TRACE_MAX_QUEUE (number of lines per buffer partition) *
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// WEBRTC_TRACE_MAX_MESSAGE_SIZE (number of 1 byte charachters per line) =
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// 1 or 4 Mbyte.
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#define WEBRTC_TRACE_MAX_FILE_SIZE 100*1000
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// Number of rows that may be written to file. On average 110 bytes per row (max
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// 256 bytes per row). So on average 110*100*1000 = 11 Mbyte, max 256*100*1000 =
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// 25.6 Mbyte
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class TraceImpl : public Trace {
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 public:
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  virtual ~TraceImpl();
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  static TraceImpl* CreateInstance();
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  static TraceImpl* GetTrace(const TraceLevel level = kTraceAll);
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  int32_t SetTraceFileImpl(const char* file_name, const bool add_file_counter);
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  int32_t TraceFileImpl(char file_name[FileWrapper::kMaxFileNameSize]);
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  int32_t SetTraceCallbackImpl(TraceCallback* callback);
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  void AddImpl(const TraceLevel level, const TraceModule module,
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               const int32_t id, const char* msg);
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  bool StopThread();
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  bool TraceCheck(const TraceLevel level) const;
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 protected:
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  TraceImpl();
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  static TraceImpl* StaticInstance(CountOperation count_operation,
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                                   const TraceLevel level = kTraceAll);
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  int32_t AddThreadId(char* trace_message) const;
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  // OS specific implementations.
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  virtual int32_t AddTime(char* trace_message,
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                          const TraceLevel level) const = 0;
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  virtual int32_t AddBuildInfo(char* trace_message) const = 0;
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  virtual int32_t AddDateTimeInfo(char* trace_message) const = 0;
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  static bool Run(void* obj);
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  bool Process();
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 private:
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  friend class Trace;
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  int32_t AddLevel(char* sz_message, const TraceLevel level) const;
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  int32_t AddModuleAndId(char* trace_message, const TraceModule module,
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                         const int32_t id) const;
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  int32_t AddMessage(char* trace_message,
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                     const char msg[WEBRTC_TRACE_MAX_MESSAGE_SIZE],
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                     const uint16_t written_so_far) const;
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  void AddMessageToList(
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    const char trace_message[WEBRTC_TRACE_MAX_MESSAGE_SIZE],
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    const uint16_t length,
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    const TraceLevel level);
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  bool UpdateFileName(
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    const char file_name_utf8[FileWrapper::kMaxFileNameSize],
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    char file_name_with_counter_utf8[FileWrapper::kMaxFileNameSize],
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    const uint32_t new_count) const;
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  bool CreateFileName(
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    const char file_name_utf8[FileWrapper::kMaxFileNameSize],
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    char file_name_with_counter_utf8[FileWrapper::kMaxFileNameSize],
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    const uint32_t new_count) const;
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  void WriteToFile();
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  CriticalSectionWrapper* critsect_interface_;
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  TraceCallback* callback_;
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  uint32_t row_count_text_;
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  uint32_t file_count_text_;
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  FileWrapper& trace_file_;
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  ThreadWrapper& thread_;
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  EventWrapper& event_;
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  // critsect_array_ protects active_queue_.
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  CriticalSectionWrapper* critsect_array_;
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  uint16_t next_free_idx_[WEBRTC_TRACE_NUM_ARRAY];
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  TraceLevel level_[WEBRTC_TRACE_NUM_ARRAY][WEBRTC_TRACE_MAX_QUEUE];
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  uint16_t length_[WEBRTC_TRACE_NUM_ARRAY][WEBRTC_TRACE_MAX_QUEUE];
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  char* message_queue_[WEBRTC_TRACE_NUM_ARRAY][WEBRTC_TRACE_MAX_QUEUE];
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  uint8_t active_queue_;
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};
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}  // namespace webrtc
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#endif  // WEBRTC_SYSTEM_WRAPPERS_SOURCE_TRACE_IMPL_H_
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