/*

 * Copyright (c) 2009-2011, Broadcom Corporation

 * Copyright (c) 2014, QLogic Corporation

 *

 * Written by:  Benjamin Li  (benli@broadcom.com)

 *

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the

 *    documentation and/or other materials provided with the distribution.

 * 3. All advertising materials mentioning features or use of this software

 *    must display the following acknowledgement:

 *      This product includes software developed by Adam Dunkels.

 * 4. The name of the author may not be used to endorse or promote

 *    products derived from this software without specific prior

 *    written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS

 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY

 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE

 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS

 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,

 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING

 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS

 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 *

 * logger.h - Logging Utilities

 *

 */

#ifndef __LOGGER_H__

#define __LOGGER_H__

#include <pthread.h>

#include <stdio.h>

#include <time.h>

#include <stdint.h>

#include <sys/types.h>

/*******************************************************************************

 * Logger Levels

 ******************************************************************************/

#define LOG_LEVEL_PACKET	5

#define LOG_LEVEL_DEBUG		4

#define LOG_LEVEL_INFO		3

#define LOG_LEVEL_WARN		2

#define LOG_LEVEL_ERR		1

#define LOG_LEVEL_UNKNOWN	0

#define LOG_LEVEL_PACKET_STR	"PKT  "

#define LOG_LEVEL_DEBUG_STR	"DBG  "

#define LOG_LEVEL_INFO_STR	"INFO "

#define LOG_LEVEL_WARN_STR	"WARN "

#define LOG_LEVEL_ERR_STR	"ERR  "

#define LOG_LEVEL_UNKNOWN_STR	"?    "

/*******************************************************************************

 * Logging Macro's

 ******************************************************************************/

#define LOG_PACKET(fmt, args...) { if (LOG_LEVEL_PACKET <= \

				       main_log.level) { \

					log_uip(LOG_LEVEL_PACKET_STR, fmt,\

						##args);\

				} }

#define LOG_DEBUG(fmt, args...) { if (LOG_LEVEL_DEBUG <= main_log.level) { \

					log_uip(LOG_LEVEL_DEBUG_STR, fmt,\

						##args);\

				} }

#define LOG_INFO(fmt, args...)  { if (LOG_LEVEL_INFO <= main_log.level) { \

					log_uip(LOG_LEVEL_INFO_STR, fmt,\

						##args); \

				} }

#define LOG_WARN(fmt, args...)  { if (LOG_LEVEL_WARN <= main_log.level) { \

					log_uip(LOG_LEVEL_WARN_STR, fmt,\

						##args); \

				} }

#define LOG_ERR(fmt, args...)   { if (LOG_LEVEL_ERR <= main_log.level) { \

					log_uip(LOG_LEVEL_ERR_STR, fmt,\

						##args); \

				} }

/*******************************************************************************

 * Logging Statistics

 ******************************************************************************/

struct logger_stats {

	uint64_t debug;

	uint64_t info;

	uint64_t warn;

	uint64_t error;

	time_t last_log_time;

};

/*******************************************************************************

 * Logger Structure

 ******************************************************************************/

struct logger {

	FILE *fp;

	char *log_file;

	int8_t level;

#define LOGGER_ENABLED	0x01

#define LOGGER_DISABLED	0x02

	int8_t enabled;

	pthread_mutex_t lock;

	struct logger_stats stats;

};

extern struct logger main_log;

int init_logger(char *);

void log_uip(char *level_str, char *fmt, ...);

void fini_logger(int);

#define CLOSE_LOGGER    0x01

#define SHUTDOWN_LOGGER 0x02

#endif