clibcni/src/log.h

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2019-09-30 10:35:21 -04:00
/******************************************************************************
* Copyright (c) Huawei Technologies Co., Ltd. 2019. All rights reserved.
* clibcni licensed under the Mulan PSL v1.
* You can use this software according to the terms and conditions of the Mulan PSL v1.
* You may obtain a copy of Mulan PSL v1 at:
* http://license.coscl.org.cn/MulanPSL
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY OR FIT FOR A PARTICULAR
* PURPOSE.
* See the Mulan PSL v1 for more details.
* Author: wujing
* Create: 2019-4-08
* Description: provide container log functions
******************************************************************************/
#ifndef __CLIBCNI_LOG_H
#define __CLIBCNI_LOG_H
#include <stdbool.h>
#include <errno.h>
#ifdef __cplusplus
extern "C" {
#endif
#ifndef O_CLOEXEC
#define O_CLOEXEC 02000000
#endif
#ifndef F_DUPFD_CLOEXEC
#define F_DUPFD_CLOEXEC 1030
#endif
#define CLIBCNI_LOG_BUFFER_SIZE 4096
/* We're logging in seconds and nanoseconds. Assuming that the underlying
* datatype is currently at maximum a 64bit integer, we have a date string that
* is of maximum length (2^64 - 1) * 2 = (21 + 21) = 42.
* */
#define CLIBCNI_LOG_TIME_SIZE 42
enum clibcni_log_drivers {
LOG_DRIVER_STDOUT,
LOG_DRIVER_FIFO,
LOG_DRIVER_SYSLOG,
LOG_DRIVER_NOSET,
};
enum clibcni_log_level {
CLIBCNI_LOG_FATAL = 0,
CLIBCNI_LOG_ALERT,
CLIBCNI_LOG_CRIT,
CLIBCNI_LOG_ERROR,
CLIBCNI_LOG_WARN,
CLIBCNI_LOG_NOTICE,
CLIBCNI_LOG_INFO,
CLIBCNI_LOG_DEBUG,
CLIBCNI_LOG_TRACE,
CLIBCNI_LOG_MAX
};
struct clibcni_log_config {
const char *name;
const char *file;
const char *priority;
const char *prefix;
const char *driver;
bool quiet;
};
#define CLIBCNI_LOG_LOCINFO_INIT \
{ \
.file = __FILE__, .func = __func__, .line = __LINE__, \
}
/* brief logging event object */
struct clibcni_log_object_metadata {
/* location information of the logging item */
const char *file;
const char *func;
int line;
int level;
};
int clibcni_log_enable(const struct clibcni_log_config *log);
void clibcni_set_log_prefix(const char *prefix);
void clibcni_free_log_prefix(void);
int clibcni_log_append(const struct clibcni_log_object_metadata *metadata, const char *format, ...);
#define COMMON_LOG(loglevel, format, ...) \
do { \
struct clibcni_log_object_metadata meta = CLIBCNI_LOG_LOCINFO_INIT; \
meta.level = loglevel; \
(void)clibcni_log_append(&meta, format, ##__VA_ARGS__); \
} while (0)
#define DEBUG(format, ...) \
COMMON_LOG(CLIBCNI_LOG_DEBUG, format, ##__VA_ARGS__)
#define INFO(format, ...) \
COMMON_LOG(CLIBCNI_LOG_INFO, format, ##__VA_ARGS__)
#define NOTICE(format, ...) \
COMMON_LOG(CLIBCNI_LOG_NOTICE, format, ##__VA_ARGS__)
#define WARN(format, ...) \
COMMON_LOG(CLIBCNI_LOG_WARN, format, ##__VA_ARGS__)
#define ERROR(format, ...) \
COMMON_LOG(CLIBCNI_LOG_ERROR, format, ##__VA_ARGS__)
#define CRIT(format, ...) \
COMMON_LOG(CLIBCNI_LOG_CRIT, format, ##__VA_ARGS__)
#define ALERT(format, ...) \
COMMON_LOG(CLIBCNI_LOG_ALERT, format, ##__VA_ARGS__)
#define FATAL(format, ...) \
COMMON_LOG(CLIBCNI_LOG_FATAL, format, ##__VA_ARGS__)
#define SYSERROR(format, ...) \
do { \
ERROR("%s - " format, strerror(errno), ##__VA_ARGS__); \
} while (0)
#define COMMAND_ERROR(fmt, args...) \
do { \
(void)fprintf(stderr, fmt "\n", ##args); \
} while (0)
#ifdef __cplusplus
}
#endif
#endif /* __LCR_LOG_H */