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/*
 * Copyright (C) 2015-2020 "IoT.bzh"
 * Author: José Bollo <jose.bollo@iot.bzh>
 *
 * 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.
 */

#pragma once

/** @defgroup AFB_LOGGING
 *  @{ */

#define AFB_VERBOSITY_LEVEL_ERROR	0 /**< @deprecated in favor of @ref AFB_SYSLOG_LEVEL_ERROR */
#define AFB_VERBOSITY_LEVEL_WARNING	1 /**< @deprecated in favor of @ref AFB_SYSLOG_LEVEL_WARNING */
#define AFB_VERBOSITY_LEVEL_NOTICE	2 /**< @deprecated in favor of @ref AFB_SYSLOG_LEVEL_NOTICE */
#define AFB_VERBOSITY_LEVEL_INFO	3 /**< @deprecated in favor of @ref AFB_SYSLOG_LEVEL_INFO */
#define AFB_VERBOSITY_LEVEL_DEBUG	4 /**< @deprecated in favor of @ref AFB_SYSLOG_LEVEL_DEBUG */

#define AFB_SYSLOG_LEVEL_EMERGENCY	0
#define AFB_SYSLOG_LEVEL_ALERT		1
#define AFB_SYSLOG_LEVEL_CRITICAL	2
#define AFB_SYSLOG_LEVEL_ERROR		3
#define AFB_SYSLOG_LEVEL_WARNING	4
#define AFB_SYSLOG_LEVEL_NOTICE		5
#define AFB_SYSLOG_LEVEL_INFO		6
#define AFB_SYSLOG_LEVEL_DEBUG		7

#define AFB_VERBOSITY_LEVEL_WANT(verbosity,level)	((verbosity) >= (level)) /**< @deprecated in favor of @ref AFB_SYSLOG_MASK_WANT */

#define AFB_VERBOSITY_LEVEL_WANT_ERROR(x)	AFB_VERBOSITY_LEVEL_WANT(x,AFB_VERBOSITY_LEVEL_ERROR) /**< @deprecated in favor of @ref AFB_SYSLOG_MASK_WANT_ERROR */
#define AFB_VERBOSITY_LEVEL_WANT_WARNING(x)	AFB_VERBOSITY_LEVEL_WANT(x,AFB_VERBOSITY_LEVEL_WARNING) /**< @deprecated in favor of @ref AFB_SYSLOG_MASK_WANT_WARNING */
#define AFB_VERBOSITY_LEVEL_WANT_NOTICE(x)	AFB_VERBOSITY_LEVEL_WANT(x,AFB_VERBOSITY_LEVEL_NOTICE) /**< @deprecated in favor of @ref AFB_SYSLOG_MASK_WANT_NOTICE */
#define AFB_VERBOSITY_LEVEL_WANT_INFO(x)	AFB_VERBOSITY_LEVEL_WANT(x,AFB_VERBOSITY_LEVEL_INFO) /**< @deprecated in favor of @ref AFB_SYSLOG_MASK_WANT_INFO */
#define AFB_VERBOSITY_LEVEL_WANT_DEBUG(x)	AFB_VERBOSITY_LEVEL_WANT(x,AFB_VERBOSITY_LEVEL_DEBUG) /**< @deprecated in favor of @ref AFB_SYSLOG_MASK_WANT_DEBUG */

#define AFB_SYSLOG_MASK_WANT(verbomask,level)	((verbomask) & (1 << (level)))

#define AFB_SYSLOG_MASK_WANT_EMERGENCY(x)	AFB_SYSLOG_MASK_WANT(x,AFB_SYSLOG_LEVEL_EMERGENCY)
#define AFB_SYSLOG_MASK_WANT_ALERT(x)		AFB_SYSLOG_MASK_WANT(x,AFB_SYSLOG_LEVEL_ALERT)
#define AFB_SYSLOG_MASK_WANT_CRITICAL(x)	AFB_SYSLOG_MASK_WANT(x,AFB_SYSLOG_LEVEL_CRITICAL)
#define AFB_SYSLOG_MASK_WANT_ERROR(x)		AFB_SYSLOG_MASK_WANT(x,AFB_SYSLOG_LEVEL_ERROR)
#define AFB_SYSLOG_MASK_WANT_WARNING(x)		AFB_SYSLOG_MASK_WANT(x,AFB_SYSLOG_LEVEL_WARNING)
#define AFB_SYSLOG_MASK_WANT_NOTICE(x)		AFB_SYSLOG_MASK_WANT(x,AFB_SYSLOG_LEVEL_NOTICE)
#define AFB_SYSLOG_MASK_WANT_INFO(x)		AFB_SYSLOG_MASK_WANT(x,AFB_SYSLOG_LEVEL_INFO)
#define AFB_SYSLOG_MASK_WANT_DEBUG(x)		AFB_SYSLOG_MASK_WANT(x,AFB_SYSLOG_LEVEL_DEBUG)

#define AFB_SYSLOG_LEVEL_FROM_VERBOSITY(x)	((x) + (AFB_SYSLOG_LEVEL_ERROR - AFB_VERBOSITY_LEVEL_ERROR))
#define AFB_SYSLOG_LEVEL_TO_VERBOSITY(x)	((x) + (AFB_VERBOSITY_LEVEL_ERROR - AFB_SYSLOG_LEVEL_ERROR))

/**
 * Transform a mask of verbosity to its significant level of verbosity.
 * 
 * @param verbomask the mask
 * 
 * @return the upper level that is not null, truncated to AFB_SYSLOG_LEVEL_DEBUG
 * 
 * @example _afb_verbomask_to_upper_level_(5) -> 2
 * @example _afb_verbomask_to_upper_level_(16) -> 4
 */
static inline int _afb_verbomask_to_upper_level_(int verbomask)
{
	int result = 0;
	while ((verbomask >>= 1) && result < AFB_SYSLOG_LEVEL_DEBUG)
		result++;
	return result;
}

/** @} */