71 lines
2.1 KiB
C++
71 lines
2.1 KiB
C++
/*
|
|
* Copyright (C) 2005 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.
|
|
*/
|
|
|
|
//
|
|
// C/C++ logging functions. See the logging documentation for API details.
|
|
//
|
|
// We'd like these to be available from C code (in case we import some from
|
|
// somewhere), so this has a C interface.
|
|
//
|
|
// The output will be correct when the log file is shared between multiple
|
|
// threads and/or multiple processes so long as the operating system
|
|
// supports O_APPEND. These calls have mutex-protected data structures
|
|
// and so are NOT reentrant. Do not use LOG in a signal handler.
|
|
//
|
|
#ifndef _LIBS_UTILS_LOG_H
|
|
#define _LIBS_UTILS_LOG_H
|
|
|
|
#include <cutils/log.h>
|
|
#include <sys/types.h>
|
|
|
|
#ifdef __cplusplus
|
|
|
|
namespace android {
|
|
|
|
/*
|
|
* A very simple utility that yells in the log when an operation takes too long.
|
|
*/
|
|
class LogIfSlow {
|
|
public:
|
|
LogIfSlow(const char* tag, android_LogPriority priority,
|
|
int timeoutMillis, const char* message);
|
|
~LogIfSlow();
|
|
|
|
private:
|
|
const char* const mTag;
|
|
const android_LogPriority mPriority;
|
|
const int mTimeoutMillis;
|
|
const char* const mMessage;
|
|
const int64_t mStart;
|
|
};
|
|
|
|
/*
|
|
* Writes the specified debug log message if this block takes longer than the
|
|
* specified number of milliseconds to run. Includes the time actually taken.
|
|
*
|
|
* {
|
|
* ALOGD_IF_SLOW(50, "Excessive delay doing something.");
|
|
* doSomething();
|
|
* }
|
|
*/
|
|
#define ALOGD_IF_SLOW(timeoutMillis, message) \
|
|
LogIfSlow _logIfSlow(LOG_TAG, ANDROID_LOG_DEBUG, timeoutMillis, message);
|
|
|
|
} // namespace android
|
|
|
|
#endif // __cplusplus
|
|
|
|
#endif // _LIBS_UTILS_LOG_H
|