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/*
* log.h
*
* Copyright (C) 2003 Bastian Blank <waldi@debian.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $Id: log.h 29603 2005-07-31 16:10:46Z cjwatson $
*/
#ifndef DEBIAN_INSTALLER__LOG_H
#define DEBIAN_INSTALLER__LOG_H
#include <stdarg.h>
/**
* @addtogroup di_log
* @{
*/
/**
* @brief Log levels and other flags
*/
typedef enum
{
DI_LOG_FLAG_FATAL = 1 << 1, /**< flag as fatal */
DI_LOG_LEVEL_ERROR = 1 << 2, /**< error level, always fatal */
DI_LOG_LEVEL_CRITICAL = 1 << 3, /**< critical level */
DI_LOG_LEVEL_WARNING = 1 << 4, /**< warning level */
DI_LOG_LEVEL_MESSAGE = 1 << 5, /**< message level */
DI_LOG_LEVEL_INFO = 1 << 6, /**< information level */
DI_LOG_LEVEL_DEBUG = 1 << 7, /**< debug level */
DI_LOG_LEVEL_OUTPUT = 1 << 8, /**< command output */
DI_LOG_LEVEL_MASK = ~DI_LOG_FLAG_FATAL, /**< defines mask for levels */
DI_LOG_FATAL_MASK = DI_LOG_LEVEL_ERROR, /**< defines always fatal levels */
}
di_log_level_flags;
typedef void di_log_handler (di_log_level_flags log_level, const char *message, void *user_data);
/**
* logs an error
*/
#define di_error(format...) di_log (DI_LOG_LEVEL_ERROR, format)
/**
* logs a warning
*/
#define di_warning(format...) di_log (DI_LOG_LEVEL_WARNING, format)
/**
* logs information
*/
#define di_info(format...) di_log (DI_LOG_LEVEL_INFO, format)
/**
* logs debug info
*/
#define di_debug(format...) di_log (DI_LOG_LEVEL_DEBUG, format)
/**
* Logs the resolved formatstring with log_level
*
* @param log_level the level of the message
* @param format printf compatible format
*/
void di_log (di_log_level_flags log_level, const char *format, ...) __attribute__ ((format(printf,2,3)));
/**
* Logs the resolved formatstring with log_level
*
* @param log_level the level of the message
* @param format printf compatible format
* @param args variable arguments list
*/
void di_vlog (di_log_level_flags log_level, const char *format, va_list args);
/**
* Sets a log handler
*
* @param log_levels levels
* @param log_func the log handler
* @param user_data data for log_func
*/
unsigned int di_log_set_handler (di_log_level_flags log_levels, di_log_handler *log_func, void *user_data);
di_log_handler
/**
* Default log handler.
* Logs to STDOUT and STDERR.
*/
di_log_handler_default,
/**
* SYSLOG log handler.
* Logs to SYSLOG.
*/
di_log_handler_syslog;
/** @} */
#endif
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