/usr/include/android-22/android/log.h is in android-headers-22 23-0ubuntu4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* Copyright (C) 2009 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.
*/
#ifndef _ANDROID_LOG_H
#define _ANDROID_LOG_H
/******************************************************************
*
* IMPORTANT NOTICE:
*
* This file is part of Android's set of stable system headers
* exposed by the Android NDK (Native Development Kit) since
* platform release 1.5
*
* Third-party source AND binary code relies on the definitions
* here to be FROZEN ON ALL UPCOMING PLATFORM RELEASES.
*
* - DO NOT MODIFY ENUMS (EXCEPT IF YOU ADD NEW 32-BIT VALUES)
* - DO NOT MODIFY CONSTANTS OR FUNCTIONAL MACROS
* - DO NOT CHANGE THE SIGNATURE OF FUNCTIONS IN ANY WAY
* - DO NOT CHANGE THE LAYOUT OR SIZE OF STRUCTURES
*/
/*
* Support routines to send messages to the Android in-kernel log buffer,
* which can later be accessed through the 'logcat' utility.
*
* Each log message must have
* - a priority
* - a log tag
* - some text
*
* The tag normally corresponds to the component that emits the log message,
* and should be reasonably small.
*
* Log message text may be truncated to less than an implementation-specific
* limit (e.g. 1023 characters max).
*
* Note that a newline character ("\n") will be appended automatically to your
* log message, if not already there. It is not possible to send several messages
* and have them appear on a single line in logcat.
*
* PLEASE USE LOGS WITH MODERATION:
*
* - Sending log messages eats CPU and slow down your application and the
* system.
*
* - The circular log buffer is pretty small (<64KB), sending many messages
* might push off other important log messages from the rest of the system.
*
* - In release builds, only send log messages to account for exceptional
* conditions.
*
* NOTE: These functions MUST be implemented by /system/lib/liblog.so
*/
#include <stdarg.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
* Android log priority values, in ascending priority order.
*/
typedef enum android_LogPriority {
ANDROID_LOG_UNKNOWN = 0,
ANDROID_LOG_DEFAULT, /* only for SetMinPriority() */
ANDROID_LOG_VERBOSE,
ANDROID_LOG_DEBUG,
ANDROID_LOG_INFO,
ANDROID_LOG_WARN,
ANDROID_LOG_ERROR,
ANDROID_LOG_FATAL,
ANDROID_LOG_SILENT, /* only for SetMinPriority(); must be last */
} android_LogPriority;
/*
* Send a simple string to the log.
*/
int __android_log_write(int prio, const char *tag, const char *text);
/*
* Send a formatted string to the log, used like printf(fmt,...)
*/
int __android_log_print(int prio, const char *tag, const char *fmt, ...)
#if defined(__GNUC__)
#ifdef __USE_MINGW_ANSI_STDIO
#if __USE_MINGW_ANSI_STDIO
__attribute__ ((format(gnu_printf, 3, 4)))
#else
__attribute__ ((format(printf, 3, 4)))
#endif
#else
__attribute__ ((format(printf, 3, 4)))
#endif
#endif
;
/*
* A variant of __android_log_print() that takes a va_list to list
* additional parameters.
*/
int __android_log_vprint(int prio, const char *tag,
const char *fmt, va_list ap);
/*
* Log an assertion failure and abort the process to have a chance
* to inspect it if a debugger is attached. This uses the FATAL priority.
*/
void __android_log_assert(const char *cond, const char *tag,
const char *fmt, ...)
#if defined(__GNUC__)
__attribute__ ((noreturn))
#ifdef __USE_MINGW_ANSI_STDIO
#if __USE_MINGW_ANSI_STDIO
__attribute__ ((format(gnu_printf, 3, 4)))
#else
__attribute__ ((format(printf, 3, 4)))
#endif
#else
__attribute__ ((format(printf, 3, 4)))
#endif
#endif
;
#ifdef __cplusplus
}
#endif
#endif /* _ANDROID_LOG_H */
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