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/*
* Copyright (c) 2017-2020 Samsung Electronics Co., Ltd. All rights reserved.
*
* This file is licensed under the terms of MIT License or the Apache License
* Version 2.0 of your choice. See the LICENSE.MIT file for MIT license details.
* See the LICENSE file or the notice below for Apache License Version 2.0
* details.
*
* 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.
*/
/**
* @file alog.h
* @author Adam Malinowski <a.malinowsk2@partner.samsung.com>
* @version 1.0
* @brief This file defines agent logging utilities.
*/
#pragma once
#include <sstream>
#include <systemd/sd-journal.h>
#include <attributes/attributes.h>
extern int __alog_level;
namespace {
// One of these templates might not get instantiated, so they have to be marked as (possibly) unused
template <typename ...Args>
void UNUSED __ALOG_FUN(int level, const std::stringstream &format,
Args&&... args) {
sd_journal_print(level, format.str().c_str(), std::forward<Args>(args)...);
}
template <>
void UNUSED __ALOG_FUN(int level, const std::stringstream &format) {
sd_journal_print(level, "%s", format.str().c_str());
}
}
#define __ALOG(LEVEL, FORMAT, ...) \
do { \
if (LEVEL <= __alog_level) { \
std::stringstream __LOG_MACRO_format; \
__LOG_MACRO_format << FORMAT; \
__ALOG_FUN(LEVEL, __LOG_MACRO_format, ##__VA_ARGS__); \
} \
} while (0)
#define ALOGE_ERRNO(MESSAGE) \
do { \
if (LOG_ERR <= __alog_level) { \
constexpr int bufsize = 1024; \
char buf[bufsize]; \
char *err_str = strerror_r(errno, buf, bufsize); \
std::stringstream __LOG_msg; \
__LOG_msg << MESSAGE << " : " << err_str; \
__ALOG_FUN(LOG_ERR, __LOG_msg); \
} \
} while(0)
#define ALOGM(...) __ALOG(LOG_EMERG, __VA_ARGS__) /* system is unusable */
#define ALOGA(...) __ALOG(LOG_ALERT, __VA_ARGS__) /* action must be taken immediately */
#define ALOGC(...) __ALOG(LOG_CRIT, __VA_ARGS__) /* critical conditions */
#define ALOGE(...) __ALOG(LOG_ERR, __VA_ARGS__) /* error conditions */
#define ALOGW(...) __ALOG(LOG_WARNING, __VA_ARGS__) /* warning conditions */
#define ALOGN(...) __ALOG(LOG_NOTICE, __VA_ARGS__) /* normal but significant condition */
#define ALOGI(...) __ALOG(LOG_INFO, __VA_ARGS__) /* informational */
#define ALOGD(...) __ALOG(LOG_DEBUG, __VA_ARGS__) /* debug-level messages */
void init_agent_log(void);
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