70 lines
2.6 KiB
C
70 lines
2.6 KiB
C
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/*
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* Copyright (C) 2017 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 CHRE_HOST_LOG_H_
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#define CHRE_HOST_LOG_H_
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#ifndef LOG_TAG
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#define LOG_TAG "CHRE"
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#endif
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#include <log/log.h>
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/**
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* Logs a message to both logcat and stdout. Don't use this directly; prefer one
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* of LOGE, LOGW, etc. to populate the level. Use LOG_PRI directly rather than
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* ALOG to avoid misinterpreting LOG_* macros that may be incorrectly evaluated.
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*
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* @param level log level to pass to ALOG (LOG_ERROR, LOG_WARN, etc.)
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* @param stream output stream to print to (e.g. stdout)
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* @param format printf-style format string
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*/
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#define CHRE_LOG(level, stream, format, ...) \
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do { \
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LOG_PRI(ANDROID_##level, LOG_TAG, format, ##__VA_ARGS__); \
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fprintf(stream, "%s:%d: " format "\n", __func__, __LINE__, ##__VA_ARGS__); \
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} while (0)
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#define LOGE(format, ...) CHRE_LOG(LOG_ERROR, stderr, format, ##__VA_ARGS__)
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#define LOGW(format, ...) CHRE_LOG(LOG_WARN, stdout, format, ##__VA_ARGS__)
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#define LOGI(format, ...) CHRE_LOG(LOG_INFO, stdout, format, ##__VA_ARGS__)
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#define LOGD(format, ...) CHRE_LOG(LOG_DEBUG, stdout, format, ##__VA_ARGS__)
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#if LOG_NDEBUG
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__attribute__((format(printf, 1, 2))) inline void chreLogNull(
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const char * /*fmt*/, ...) {}
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#define LOGV(format, ...) chreLogNull(format, ##__VA_ARGS__)
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#else
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#define LOGV(format, ...) CHRE_LOG(LOG_VERBOSE, stdout, format, ##__VA_ARGS__)
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#endif
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/**
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* Helper to log a library error with a human-readable version of the provided
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* error code.
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*
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* @param message Error message string to log
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* @param error_code Standard error code number (EINVAL, etc)
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*/
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#define LOG_ERROR(message, error_code) \
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do { \
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char error_string[64]; \
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strerror_r(error_code, error_string, sizeof(error_string)); \
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LOGE("%s: %s (%d)\n", message, error_string, error_code); \
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} while (0)
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#endif // CHRE_HOST_LOG_H_
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