//
// Copyright 2005 The Android Open Source Project
//
// 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 _MINZIP_LOG_H
#define _MINZIP_LOG_H
#include <stdio.h>
// ---------------------------------------------------------------------
/*
* Normally we strip LOGV (VERBOSE messages) from release builds.
* 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 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
// ---------------------------------------------------------------------
/*
* Simplified macro to send a verbose log message using the current LOG_TAG.
*/
#ifndef LOGV
#if LOG_NDEBUG
#define LOGV(...) ((void)0)
#else
#define LOGV(...) ((void)LOG(LOG_VERBOSE, LOG_TAG, __VA_ARGS__))
#endif
#endif
#define CONDITION(cond) (__builtin_expect((cond)!=0, 0))
#ifndef LOGV_IF
#if LOG_NDEBUG
#define LOGV_IF(cond, ...) ((void)0)
#else
#define LOGV_IF(cond, ...) \
( (CONDITION(cond)) \
? ((void)LOG(LOG_VERBOSE, LOG_TAG, __VA_ARGS__)) \
: (void)0 )
#endif
#endif
#define LOGVV LOGV
#define LOGVV_IF LOGV_IF
/*
* Simplified macro to send a debug log message using the current LOG_TAG.
*/
#ifndef LOGD
#define LOGD(...) ((void)LOG(LOG_DEBUG, LOG_TAG, __VA_ARGS__))
#endif
#ifndef LOGD_IF
#define LOGD_IF(cond, ...) \
( (CONDITION(cond)) \
? ((void)LOG(LOG_DEBUG, LOG_TAG, __VA_ARGS__)) \
: (void)0 )
#endif
/*
* Simplified macro to send an info log message using the current LOG_TAG.
*/
#ifndef LOGI
#define LOGI(...) ((void)LOG(LOG_INFO, LOG_TAG, __VA_ARGS__))
#endif
#ifndef LOGI_IF
#define LOGI_IF(cond, ...) \
( (CONDITION(cond)) \
? ((void)LOG(LOG_INFO, LOG_TAG, __VA_ARGS__)) \
: (void)0 )
#endif
/*
* Simplified macro to send a warning log message using the current LOG_TAG.
*/
#ifndef LOGW
#define LOGW(...) ((void)LOG(LOG_WARN, LOG_TAG, __VA_ARGS__))
#endif
#ifndef LOGW_IF
#define LOGW_IF(cond, ...) \
( (CONDITION(cond)) \
? ((void)LOG(LOG_WARN, LOG_TAG, __VA_ARGS__)) \
: (void)0 )
#endif
/*
* Simplified macro to send an error log message using the current LOG_TAG.
*/
#ifndef LOGE
#define LOGE(...) ((void)LOG(LOG_ERROR, LOG_TAG, __VA_ARGS__))
#endif
#ifndef LOGE_IF
#define LOGE_IF(cond, ...) \
( (CONDITION(cond)) \
? ((void)LOG(LOG_ERROR, LOG_TAG, __VA_ARGS__)) \
: (void)0 )
#endif
/*
* Conditional based on whether the current LOG_TAG is enabled at
* verbose priority.
*/
#ifndef IF_LOGV
#if LOG_NDEBUG
#define IF_LOGV() if (false)
#else
#define IF_LOGV() IF_LOG(LOG_VERBOSE, LOG_TAG)
#endif
#endif
/*
* Conditional based on whether the current LOG_TAG is enabled at
* debug priority.
*/
#ifndef IF_LOGD
#define IF_LOGD() IF_LOG(LOG_DEBUG, LOG_TAG)
#endif
/*
* Conditional based on whether the current LOG_TAG is enabled at
* info priority.
*/
#ifndef IF_LOGI
#define IF_LOGI() IF_LOG(LOG_INFO, LOG_TAG)
#endif
/*
* Conditional based on whether the current LOG_TAG is enabled at
* warn priority.
*/
#ifndef IF_LOGW
#define IF_LOGW() IF_LOG(LOG_WARN, LOG_TAG)
#endif
/*
* Conditional based on whether the current LOG_TAG is enabled at
* error priority.
*/
#ifndef IF_LOGE
#define IF_LOGE() IF_LOG(LOG_ERROR, LOG_TAG)
#endif
// ---------------------------------------------------------------------
/*
* Basic log message macro.
*
* Example:
* LOG(LOG_WARN, NULL, "Failed with error %d", errno);
*
* The second argument may be NULL or "" to indicate the "global" tag.
*
* Non-gcc probably won't have __FUNCTION__. It's not vital. gcc also
* offers __PRETTY_FUNCTION__, which is rather more than we need.
*/
#ifndef LOG
#define LOG(priority, tag, ...) \
LOG_PRI(ANDROID_##priority, tag, __VA_ARGS__)
#endif
/*
* Log macro that allows you to specify a number for the priority.
*/
#ifndef LOG_PRI
#define LOG_PRI(priority, tag, ...) \
printf(tag ": " __VA_ARGS__)
#endif
/*
* Conditional given a desired logging priority and tag.
*/
#ifndef IF_LOG
#define IF_LOG(priority, tag) \
if (1)
#endif
#endif // _MINZIP_LOG_H
