85cce376cb
EventLog can be used from SurfaceFlinger to log jank statistics events to the binary event log. Change-Id: If0fbbe7d7111f10957697166d37fd0c3418109bb
84 lines
2.4 KiB
C++
84 lines
2.4 KiB
C++
/*
|
|
* Copyright 2013 The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#include <stdint.h>
|
|
#include <utils/Errors.h>
|
|
#include <utils/Singleton.h>
|
|
|
|
#ifndef ANDROID_SF_EVENTLOG_H
|
|
#define ANDROID_SF_EVENTLOG_H
|
|
|
|
// ---------------------------------------------------------------------------
|
|
namespace android {
|
|
// ---------------------------------------------------------------------------
|
|
|
|
class String8;
|
|
|
|
class EventLog : public Singleton<EventLog> {
|
|
|
|
public:
|
|
static void logJank(const String8& window, int32_t value);
|
|
|
|
protected:
|
|
EventLog();
|
|
|
|
private:
|
|
/*
|
|
* EventLogBuffer is a helper class to construct an in-memory event log
|
|
* tag. In this version the buffer is not dynamic, so write operation can
|
|
* fail if there is not enough space in the temporary buffer.
|
|
* Once constructed, the buffer can be logger by calling the log()
|
|
* method.
|
|
*/
|
|
|
|
class TagBuffer {
|
|
enum { STORAGE_MAX_SIZE = 128 };
|
|
int32_t mPos;
|
|
int32_t mTag;
|
|
bool mOverflow;
|
|
char mStorage[STORAGE_MAX_SIZE];
|
|
public:
|
|
TagBuffer(int32_t tag);
|
|
|
|
// starts list of items
|
|
void startList(int8_t count);
|
|
// terminates the list
|
|
void endList();
|
|
// write a 32-bit integer
|
|
void writeInt32(int32_t value);
|
|
// write a 64-bit integer
|
|
void writeInt64(int64_t value);
|
|
// write a C string
|
|
void writeString8(const String8& value);
|
|
|
|
// outputs the the buffer to the log
|
|
void log();
|
|
};
|
|
|
|
friend class Singleton<EventLog>;
|
|
EventLog(const EventLog&);
|
|
EventLog& operator =(const EventLog&);
|
|
|
|
enum { LOGTAG_SF_JANK = 60100 };
|
|
void doLogJank(const String8& window, int32_t value);
|
|
};
|
|
|
|
// ---------------------------------------------------------------------------
|
|
}// namespace android
|
|
// ---------------------------------------------------------------------------
|
|
|
|
#endif /* ANDROID_SF_EVENTLOG_H */
|