/*
* Copyright (C) 2005-2014 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 _LIBS_LOG_LOG_H
#define _LIBS_LOG_LOG_H
/* Too many in the ecosystem assume these are included */
#if !defined(_WIN32)
#include <pthread.h>
#endif
#include <stdint.h> /* uint16_t, int32_t */
#include <stdio.h>
#include <sys/types.h>
#include <time.h>
#include <unistd.h>
#include <android/log.h>
#include <log/log_id.h>
#include <log/log_main.h>
#include <log/log_radio.h>
#include <log/log_read.h>
#include <log/log_safetynet.h>
#include <log/log_system.h>
#include <log/log_time.h>
#include <log/uio.h> /* helper to define iovec for portability */
#ifdef __cplusplus
extern "C" {
#endif
/*
* LOG_TAG is the local tag used for the following simplified
* logging macros. You can change this preprocessor definition
* before using the other macros to change the tag.
*/
#ifndef LOG_TAG
#define LOG_TAG NULL
#endif
/*
* Normally we strip the effects of ALOGV (VERBOSE messages),
* LOG_FATAL and LOG_FATAL_IF (FATAL assert messages) from the
* release builds be defining NDEBUG. You can modify this (for
* example with "#define LOG_NDEBUG 0" at the top of your source
* file) to change that behavior.
*/
#ifndef LOG_NDEBUG
#ifdef NDEBUG
#define LOG_NDEBUG 1
#else
#define LOG_NDEBUG 0
#endif
#endif
/* --------------------------------------------------------------------- */
/*
* This file uses ", ## __VA_ARGS__" zero-argument token pasting to
* work around issues with debug-only syntax errors in assertions
* that are missing format strings. See commit
* 19299904343daf191267564fe32e6cd5c165cd42
*/
#if defined(__clang__)
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wgnu-zero-variadic-macro-arguments"
#endif
/* --------------------------------------------------------------------- */
/*
* Event logging.
*/
/*
* The following should not be used directly.
*/
int __android_log_bwrite(int32_t tag, const void* payload, size_t len);
int __android_log_btwrite(int32_t tag, char type, const void* payload,
size_t len);
int __android_log_bswrite(int32_t tag, const char* payload);
int __android_log_stats_bwrite(int32_t tag, const void* payload, size_t len);
#define android_bWriteLog(tag, payload, len) \
__android_log_bwrite(tag, payload, len)
#define android_btWriteLog(tag, type, payload, len) \
__android_log_btwrite(tag, type, payload, len)
/*
* Event log entry types.
*/
#ifndef __AndroidEventLogType_defined
#define __AndroidEventLogType_defined
typedef enum {
/* Special markers for android_log_list_element type */
EVENT_TYPE_LIST_STOP = '\n', /* declare end of list */
EVENT_TYPE_UNKNOWN = '?', /* protocol error */
/* must match with declaration in java/android/android/util/EventLog.java */
EVENT_TYPE_INT = 0, /* int32_t */
EVENT_TYPE_LONG = 1, /* int64_t */
EVENT_TYPE_STRING = 2,
EVENT_TYPE_LIST = 3,
EVENT_TYPE_FLOAT = 4,
} AndroidEventLogType;
#endif
#define sizeof_AndroidEventLogType sizeof(typeof_AndroidEventLogType)
#define typeof_AndroidEventLogType unsigned char
#ifndef LOG_EVENT_INT
#define LOG_EVENT_INT(_tag, _value) \
{ \
int intBuf = _value; \
(void)android_btWriteLog(_tag, EVENT_TYPE_INT, &intBuf, sizeof(intBuf)); \
}
#endif
#ifndef LOG_EVENT_LONG
#define LOG_EVENT_LONG(_tag, _value) \
{ \
long long longBuf = _value; \
(void)android_btWriteLog(_tag, EVENT_TYPE_LONG, &longBuf, sizeof(longBuf)); \
}
#endif
#ifndef LOG_EVENT_FLOAT
#define LOG_EVENT_FLOAT(_tag, _value) \
{ \
float floatBuf = _value; \
(void)android_btWriteLog(_tag, EVENT_TYPE_FLOAT, &floatBuf, \
sizeof(floatBuf)); \
}
#endif
#ifndef LOG_EVENT_STRING
#define LOG_EVENT_STRING(_tag, _value) \
(void)__android_log_bswrite(_tag, _value);
#endif
#ifdef __linux__
#ifndef __ANDROID_USE_LIBLOG_CLOCK_INTERFACE
#ifndef __ANDROID_API__
#define __ANDROID_USE_LIBLOG_CLOCK_INTERFACE 1
#elif __ANDROID_API__ > 22 /* > Lollipop */
#define __ANDROID_USE_LIBLOG_CLOCK_INTERFACE 1
#else
#define __ANDROID_USE_LIBLOG_CLOCK_INTERFACE 0
#endif
#endif
#if __ANDROID_USE_LIBLOG_CLOCK_INTERFACE
clockid_t android_log_clockid(void);
#endif
#endif /* __linux__ */
/* --------------------------------------------------------------------- */
#ifndef __ANDROID_USE_LIBLOG_CLOSE_INTERFACE
#ifndef __ANDROID_API__
#define __ANDROID_USE_LIBLOG_CLOSE_INTERFACE 1
#elif __ANDROID_API__ > 18 /* > JellyBean */
#define __ANDROID_USE_LIBLOG_CLOSE_INTERFACE 1
#else
#define __ANDROID_USE_LIBLOG_CLOSE_INTERFACE 0
#endif
#endif
#if __ANDROID_USE_LIBLOG_CLOSE_INTERFACE
/*
* Release any logger resources (a new log write will immediately re-acquire)
*
* May be used to clean up File descriptors after a Fork, the resources are
* all O_CLOEXEC so wil self clean on exec().
*/
void __android_log_close(void);
#endif
#ifndef __ANDROID_USE_LIBLOG_RATELIMIT_INTERFACE
#ifndef __ANDROID_API__
#define __ANDROID_USE_LIBLOG_RATELIMIT_INTERFACE 1
#elif __ANDROID_API__ > 25 /* > OC */
#define __ANDROID_USE_LIBLOG_RATELIMIT_INTERFACE 1
#else
#define __ANDROID_USE_LIBLOG_RATELIMIT_INTERFACE 0
#endif
#endif
#if __ANDROID_USE_LIBLOG_RATELIMIT_INTERFACE
/*
* if last is NULL, caller _must_ provide a consistent value for seconds.
*
* Return -1 if we can not acquire a lock, which below will permit the logging,
* error on allowing a log message through.
*/
int __android_log_ratelimit(time_t seconds, time_t* last);
/*
* Usage:
*
* // Global default and state
* IF_ALOG_RATELIMIT() {
* ALOG*(...);
* }
*
* // local state, 10 seconds ratelimit
* static time_t local_state;
* IF_ALOG_RATELIMIT_LOCAL(10, &local_state) {
* ALOG*(...);
* }
*/
#define IF_ALOG_RATELIMIT() if (__android_log_ratelimit(0, NULL) > 0)
#define IF_ALOG_RATELIMIT_LOCAL(seconds, state) \
if (__android_log_ratelimit(seconds, state) > 0)
#else
/* No ratelimiting as API unsupported */
#define IF_ALOG_RATELIMIT() if (1)
#define IF_ALOG_RATELIMIT_LOCAL(...) if (1)
#endif
#if defined(__clang__)
#pragma clang diagnostic pop
#endif
#ifdef __cplusplus
}
#endif
#endif /* _LIBS_LOG_LOG_H */
