webrtc/rtc_base/event_tracer.h
Mirko Bonadei 92ea95e34a Fixing WebRTC after moving from src/webrtc to src/
In https://webrtc-review.googlesource.com/c/src/+/1560 we moved WebRTC
from src/webrtc to src/ (in order to preserve an healthy git history).
This CL takes care of fixing header guards, #include paths, etc...

NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
TBR=tommi@webrtc.org


Bug: chromium:611808
Change-Id: Iea91618212bee0af16aa3f05071eab8f93706578
Reviewed-on: https://webrtc-review.googlesource.com/1561
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Henrik Kjellander <kjellander@webrtc.org>
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#19846}
2017-09-15 05:02:56 +00:00

85 lines
2.8 KiB
C++

/*
* 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.
*/
// This file defines the interface for event tracing in WebRTC.
//
// Event log handlers are set through SetupEventTracer(). User of this API will
// provide two function pointers to handle event tracing calls.
//
// * GetCategoryEnabledPtr
// Event tracing system calls this function to determine if a particular
// event category is enabled.
//
// * AddTraceEventPtr
// Adds a tracing event. It is the user's responsibility to log the data
// provided.
//
// Parameters for the above two functions are described in trace_event.h.
#ifndef RTC_BASE_EVENT_TRACER_H_
#define RTC_BASE_EVENT_TRACER_H_
#include <stdio.h>
namespace webrtc {
typedef const unsigned char* (*GetCategoryEnabledPtr)(const char* name);
typedef void (*AddTraceEventPtr)(char phase,
const unsigned char* category_enabled,
const char* name,
unsigned long long id,
int num_args,
const char** arg_names,
const unsigned char* arg_types,
const unsigned long long* arg_values,
unsigned char flags);
// User of WebRTC can call this method to setup event tracing.
//
// This method must be called before any WebRTC methods. Functions
// provided should be thread-safe.
void SetupEventTracer(
GetCategoryEnabledPtr get_category_enabled_ptr,
AddTraceEventPtr add_trace_event_ptr);
// This class defines interface for the event tracing system to call
// internally. Do not call these methods directly.
class EventTracer {
public:
static const unsigned char* GetCategoryEnabled(
const char* name);
static void AddTraceEvent(
char phase,
const unsigned char* category_enabled,
const char* name,
unsigned long long id,
int num_args,
const char** arg_names,
const unsigned char* arg_types,
const unsigned long long* arg_values,
unsigned char flags);
};
} // namespace webrtc
namespace rtc {
namespace tracing {
// Set up internal event tracer.
void SetupInternalTracer();
bool StartInternalCapture(const char* filename);
void StartInternalCaptureToFile(FILE* file);
void StopInternalCapture();
// Make sure we run this, this will tear down the internal tracing.
void ShutdownInternalTracer();
} // namespace tracing
} // namespace rtc
#endif // RTC_BASE_EVENT_TRACER_H_