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/*
* Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef WEBRTC_SYSTEM_WRAPPERS_SOURCE_TRACE_IMPL_H_
#define WEBRTC_SYSTEM_WRAPPERS_SOURCE_TRACE_IMPL_H_
#include "webrtc/system_wrappers/interface/critical_section_wrapper.h"
#include "webrtc/system_wrappers/interface/event_wrapper.h"
#include "webrtc/system_wrappers/interface/file_wrapper.h"
#include "webrtc/system_wrappers/interface/static_instance.h"
#include "webrtc/system_wrappers/interface/thread_wrapper.h"
#include "webrtc/system_wrappers/interface/trace.h"
namespace webrtc {
// TODO(pwestin) WEBRTC_TRACE_MAX_QUEUE needs to be tweaked
// TODO(hellner) the buffer should be close to how much the system can write to
// file. Increasing the buffer will not solve anything. Sooner or
// later the buffer is going to fill up anyways.
#if defined(WEBRTC_IOS)
#define WEBRTC_TRACE_MAX_QUEUE 2000
#else
#define WEBRTC_TRACE_MAX_QUEUE 8000
#endif
#define WEBRTC_TRACE_NUM_ARRAY 2
#define WEBRTC_TRACE_MAX_MESSAGE_SIZE 1024
// Total buffer size is WEBRTC_TRACE_NUM_ARRAY (number of buffer partitions) *
// WEBRTC_TRACE_MAX_QUEUE (number of lines per buffer partition) *
// WEBRTC_TRACE_MAX_MESSAGE_SIZE (number of 1 byte charachters per line) =
// 1 or 4 Mbyte.
#define WEBRTC_TRACE_MAX_FILE_SIZE 100*1000
// Number of rows that may be written to file. On average 110 bytes per row (max
// 256 bytes per row). So on average 110*100*1000 = 11 Mbyte, max 256*100*1000 =
// 25.6 Mbyte
class TraceImpl : public Trace {
public:
virtual ~TraceImpl();
static TraceImpl* CreateInstance();
static TraceImpl* GetTrace(const TraceLevel level = kTraceAll);
int32_t SetTraceFileImpl(const char* file_name, const bool add_file_counter);
int32_t TraceFileImpl(char file_name[FileWrapper::kMaxFileNameSize]);
int32_t SetTraceCallbackImpl(TraceCallback* callback);
void AddImpl(const TraceLevel level, const TraceModule module,
const int32_t id, const char* msg);
bool StopThread();
bool TraceCheck(const TraceLevel level) const;
protected:
TraceImpl();
static TraceImpl* StaticInstance(CountOperation count_operation,
const TraceLevel level = kTraceAll);
int32_t AddThreadId(char* trace_message) const;
// OS specific implementations.
virtual int32_t AddTime(char* trace_message,
const TraceLevel level) const = 0;
virtual int32_t AddBuildInfo(char* trace_message) const = 0;
virtual int32_t AddDateTimeInfo(char* trace_message) const = 0;
static bool Run(void* obj);
bool Process();
private:
friend class Trace;
int32_t AddLevel(char* sz_message, const TraceLevel level) const;
int32_t AddModuleAndId(char* trace_message, const TraceModule module,
const int32_t id) const;
int32_t AddMessage(char* trace_message,
const char msg[WEBRTC_TRACE_MAX_MESSAGE_SIZE],
const uint16_t written_so_far) const;
void AddMessageToList(
const char trace_message[WEBRTC_TRACE_MAX_MESSAGE_SIZE],
const uint16_t length,
const TraceLevel level);
bool UpdateFileName(
const char file_name_utf8[FileWrapper::kMaxFileNameSize],
char file_name_with_counter_utf8[FileWrapper::kMaxFileNameSize],
const uint32_t new_count) const;
bool CreateFileName(
const char file_name_utf8[FileWrapper::kMaxFileNameSize],
char file_name_with_counter_utf8[FileWrapper::kMaxFileNameSize],
const uint32_t new_count) const;
void WriteToFile();
CriticalSectionWrapper* critsect_interface_;
TraceCallback* callback_;
uint32_t row_count_text_;
uint32_t file_count_text_;
FileWrapper& trace_file_;
ThreadWrapper& thread_;
EventWrapper& event_;
// critsect_array_ protects active_queue_.
CriticalSectionWrapper* critsect_array_;
uint16_t next_free_idx_[WEBRTC_TRACE_NUM_ARRAY];
TraceLevel level_[WEBRTC_TRACE_NUM_ARRAY][WEBRTC_TRACE_MAX_QUEUE];
uint16_t length_[WEBRTC_TRACE_NUM_ARRAY][WEBRTC_TRACE_MAX_QUEUE];
char* message_queue_[WEBRTC_TRACE_NUM_ARRAY][WEBRTC_TRACE_MAX_QUEUE];
uint8_t active_queue_;
};
} // namespace webrtc
#endif // WEBRTC_SYSTEM_WRAPPERS_SOURCE_TRACE_IMPL_H_
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