lv_log.h

/* Libvisual - The audio visualisation framework.
 *
 * Copyright (C) 2012      Libvisual team
 *               2004-2006 Dennis Smit
 *
 * Authors: Chong Kai Xiong <kaixiong@codeleft.sg>
 *          Dennis Smit <ds@nerds-incorporated.org>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1
 * 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */

#ifndef _LV_LOG_H
#define _LV_LOG_H

#include <libvisual/lvconfig.h>
#include <libvisual/lv_defines.h>

LV_BEGIN_DECLS

typedef enum {
    VISUAL_LOG_DEBUG,     
    VISUAL_LOG_INFO,      
    VISUAL_LOG_WARNING,   
    VISUAL_LOG_ERROR,     
    VISUAL_LOG_CRITICAL,  
    VISUAL_LOG_NUM_LEVELS 
} VisLogSeverity;

typedef struct {
    const char   *file;  
    const char   *func;  
    unsigned int  line;  
} VisLogSource;

typedef void (*VisLogHandlerFunc) (VisLogSeverity severity, const char *message,
    const VisLogSource *source, void *user_data);

LV_API void visual_log_set_verbosity (VisLogSeverity level);

LV_API VisLogSeverity visual_log_get_verbosity (void);

LV_API void visual_log_set_handler (VisLogSeverity severity, VisLogHandlerFunc handler, void *user_data);

#define visual_log(severity,...)  \
    _lv_log (severity,            \
             __FILE__,            \
             __LINE__,            \
             __PRETTY_FUNCTION__, \
             __VA_ARGS__)

LV_API void _lv_log (VisLogSeverity severity, const char *file, int line, const char *funcname,
    const char *fmt, ...) LV_CHECK_PRINTF_FORMAT(5, 6);

LV_END_DECLS

#endif /* _LV_LOG_H */