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289 lines
6.9 KiB
289 lines
6.9 KiB
/*
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* Copyright (C) 2013 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef LOG_H_
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#define LOG_H_
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#include <android/log.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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// ---------------------------------------------------------------------
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/*
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* Normally we strip ALOGV (VERBOSE messages) from release builds.
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* You can modify this (for example with "#define LOG_NDEBUG 0"
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* at the top of your source file) to change that behavior.
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*/
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#ifndef LOG_NDEBUG
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#ifdef NDEBUG
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#define LOG_NDEBUG 1
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#else
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#define LOG_NDEBUG 0
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#endif
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#endif
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/*
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* This is the local tag used for the following simplified
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* logging macros. You can change this preprocessor definition
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* before using the other macros to change the tag.
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*/
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#ifndef LOG_TAG
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#define LOG_TAG "RasterMill"
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#endif
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// ---------------------------------------------------------------------
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/*
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* Simplified macro to send a verbose log message using the current LOG_TAG.
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*/
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#ifndef ALOGV
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#if LOG_NDEBUG
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#define ALOGV(...) ((void)0)
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#else
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#define ALOGV(...) ((void)ALOG(LOG_VERBOSE, LOG_TAG, __VA_ARGS__))
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#endif
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#endif
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#define CONDITION(cond) (__builtin_expect((cond)!=0, 0))
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#ifndef ALOGV_IF
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#if LOG_NDEBUG
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#define ALOGV_IF(cond, ...) ((void)0)
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#else
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#define ALOGV_IF(cond, ...) \
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( (CONDITION(cond)) \
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? ((void)ALOG(LOG_VERBOSE, LOG_TAG, __VA_ARGS__)) \
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: (void)0 )
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#endif
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#endif
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/*
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* Simplified macro to send a debug log message using the current LOG_TAG.
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*/
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#ifndef ALOGD
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#define ALOGD(...) ((void)ALOG(LOG_DEBUG, LOG_TAG, __VA_ARGS__))
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#endif
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#ifndef ALOGD_IF
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#define ALOGD_IF(cond, ...) \
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( (CONDITION(cond)) \
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? ((void)ALOG(LOG_DEBUG, LOG_TAG, __VA_ARGS__)) \
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: (void)0 )
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#endif
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/*
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* Simplified macro to send an info log message using the current LOG_TAG.
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*/
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#ifndef ALOGI
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#define ALOGI(...) ((void)ALOG(LOG_INFO, LOG_TAG, __VA_ARGS__))
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#endif
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#ifndef ALOGI_IF
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#define ALOGI_IF(cond, ...) \
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( (CONDITION(cond)) \
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? ((void)ALOG(LOG_INFO, LOG_TAG, __VA_ARGS__)) \
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: (void)0 )
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#endif
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/*
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* Simplified macro to send a warning log message using the current LOG_TAG.
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*/
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#ifndef ALOGW
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#define ALOGW(...) ((void)ALOG(LOG_WARN, LOG_TAG, __VA_ARGS__))
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#endif
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#ifndef ALOGW_IF
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#define ALOGW_IF(cond, ...) \
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( (CONDITION(cond)) \
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? ((void)ALOG(LOG_WARN, LOG_TAG, __VA_ARGS__)) \
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: (void)0 )
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#endif
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/*
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* Simplified macro to send an error log message using the current LOG_TAG.
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*/
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#ifndef ALOGE
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#define ALOGE(...) ((void)ALOG(LOG_ERROR, LOG_TAG, __VA_ARGS__))
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#endif
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#ifndef ALOGE_IF
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#define ALOGE_IF(cond, ...) \
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( (CONDITION(cond)) \
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? ((void)ALOG(LOG_ERROR, LOG_TAG, __VA_ARGS__)) \
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: (void)0 )
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#endif
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// ---------------------------------------------------------------------
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/*
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* Conditional based on whether the current LOG_TAG is enabled at
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* verbose priority.
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*/
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#ifndef IF_ALOGV
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#if LOG_NDEBUG
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#define IF_ALOGV() if (false)
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#else
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#define IF_ALOGV() IF_ALOG(LOG_VERBOSE, LOG_TAG)
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#endif
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#endif
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/*
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* Conditional based on whether the current LOG_TAG is enabled at
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* debug priority.
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*/
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#ifndef IF_ALOGD
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#define IF_ALOGD() IF_ALOG(LOG_DEBUG, LOG_TAG)
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#endif
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/*
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* Conditional based on whether the current LOG_TAG is enabled at
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* info priority.
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*/
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#ifndef IF_ALOGI
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#define IF_ALOGI() IF_ALOG(LOG_INFO, LOG_TAG)
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#endif
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/*
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* Conditional based on whether the current LOG_TAG is enabled at
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* warn priority.
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*/
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#ifndef IF_ALOGW
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#define IF_ALOGW() IF_ALOG(LOG_WARN, LOG_TAG)
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#endif
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/*
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* Conditional based on whether the current LOG_TAG is enabled at
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* error priority.
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*/
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#ifndef IF_ALOGE
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#define IF_ALOGE() IF_ALOG(LOG_ERROR, LOG_TAG)
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#endif
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// ---------------------------------------------------------------------
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/*
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* Log a fatal error. If the given condition fails, this stops program
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* execution like a normal assertion, but also generating the given message.
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* It is NOT stripped from release builds. Note that the condition test
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* is -inverted- from the normal assert() semantics.
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*/
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#ifndef LOG_ALWAYS_FATAL_IF
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#define LOG_ALWAYS_FATAL_IF(cond, ...) \
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( (CONDITION(cond)) \
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? ((void)android_printAssert(#cond, LOG_TAG, ## __VA_ARGS__)) \
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: (void)0 )
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#endif
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#ifndef LOG_ALWAYS_FATAL
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#define LOG_ALWAYS_FATAL(...) \
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( ((void)android_printAssert(NULL, LOG_TAG, ## __VA_ARGS__)) )
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#endif
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/*
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* Versions of LOG_ALWAYS_FATAL_IF and LOG_ALWAYS_FATAL that
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* are stripped out of release builds.
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*/
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#if LOG_NDEBUG
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#ifndef LOG_FATAL_IF
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#define LOG_FATAL_IF(cond, ...) ((void)0)
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#endif
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#ifndef LOG_FATAL
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#define LOG_FATAL(...) ((void)0)
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#endif
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#else
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#ifndef LOG_FATAL_IF
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#define LOG_FATAL_IF(cond, ...) LOG_ALWAYS_FATAL_IF(cond, ## __VA_ARGS__)
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#endif
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#ifndef LOG_FATAL
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#define LOG_FATAL(...) LOG_ALWAYS_FATAL(__VA_ARGS__)
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#endif
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#endif
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/*
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* Assertion that generates a log message when the assertion fails.
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* Stripped out of release builds. Uses the current LOG_TAG.
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*/
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#ifndef ALOG_ASSERT
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#define ALOG_ASSERT(cond, ...) LOG_FATAL_IF(!(cond), ## __VA_ARGS__)
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//#define ALOG_ASSERT(cond) LOG_FATAL_IF(!(cond), "Assertion failed: " #cond)
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#endif
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// ---------------------------------------------------------------------
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/*
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* Basic log message macro.
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*
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* Example:
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* ALOG(LOG_WARN, NULL, "Failed with error %d", errno);
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*
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* The second argument may be NULL or "" to indicate the "global" tag.
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*/
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#ifndef ALOG
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#define ALOG(priority, tag, ...) \
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LOG_PRI(ANDROID_##priority, tag, __VA_ARGS__)
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#endif
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/*
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* Log macro that allows you to specify a number for the priority.
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*/
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#ifndef LOG_PRI
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#define LOG_PRI(priority, tag, ...) \
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__android_log_print(priority, tag, __VA_ARGS__)
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#endif
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/*
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* Log macro that allows you to pass in a varargs ("args" is a va_list).
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*/
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#ifndef LOG_PRI_VA
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#define LOG_PRI_VA(priority, tag, fmt, args) \
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__android_log_vprint(priority, NULL, tag, fmt, args)
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#endif
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/*
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* Conditional given a desired logging priority and tag.
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*/
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#ifndef IF_ALOG
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#define IF_ALOG(priority, tag) \
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if (__android_log_assert(ANDROID_##priority, tag))
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#endif
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/* Returns 2nd arg. Used to substitute default value if caller's vararg list
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* is empty.
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*/
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#define __android_second(dummy, second, ...) second
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/* If passed multiple args, returns ',' followed by all but 1st arg, otherwise
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* returns nothing.
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*/
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#define __android_rest(first, ...) , ## __VA_ARGS__
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#define android_printAssert(cond, tag, fmt...) \
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__android_log_assert(cond, tag, \
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__android_second(0, ## fmt, NULL) __android_rest(fmt))
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#ifdef __cplusplus
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}
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#endif
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#endif /* LOG_H_ */
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