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// SPDX-License-Identifier: LGPL-2.1-or-later
/*
* This file is part of the PCEPlib, a PCEP protocol library.
*
* Copyright (C) 2020 Volta Networks https://voltanet.io/
*
* Author : Brady Johnson <brady@voltanet.io>
*
*/
#ifndef PCEP_UTILS_INCLUDE_PCEP_UTILS_LOGGING_H_
#define PCEP_UTILS_INCLUDE_PCEP_UTILS_LOGGING_H_
#include <syslog.h> /* Logging levels */
#include <stdarg.h> /* va_list */
#include <stdint.h> /* uint8_t */
/*
* The logging defined here i intended to provide the infrastructure to
* be able to plug-in an external logger, primarily the FRR logger. There
* will be a default internal logger implemented that will write to stdout,
* but any other advanced logging features should be implemented externally.
*/
/* Only the following logging levels from syslog.h should be used:
*
* LOG_DEBUG - For all messages that are enabled by optional debugging
* features, typically preceded by "if (IS...DEBUG...)"
* LOG_INFO - Information that may be of interest, but
* everything seems to be working properly.
* LOG_NOTICE - Only for message pertaining to daemon startup or shutdown.
* LOG_WARNING - Warning conditions: unexpected events, but the daemon
* believes it can continue to operate correctly.
* LOG_ERR - Error situations indicating malfunctions.
* Probably requires attention.
*/
/* The signature of this logger function is the same as the FRR logger */
typedef int (*pcep_logger_func)(int, const char *, va_list);
void register_logger(pcep_logger_func logger);
/* These functions only take affect when using the internal stdout logger */
void set_logging_level(int level);
int get_logging_level(void);
/* Log messages either to a previously registered
* logger or to the internal default stdout logger. */
void pcep_log(int priority, const char *format, ...);
void pcep_log_hexbytes(int priority, const char *message, const uint8_t *bytes,
uint8_t bytes_len);
#endif /* PCEP_UTILS_INCLUDE_PCEP_UTILS_LOGGING_H_ */
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