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a37d20ccf6
Those are more flexible than the GNU-specific %m format specifier to print standard error messages. They are also less likely to format a clobbered error number.
91 lines
3.0 KiB
C
91 lines
3.0 KiB
C
/*****************************************************************************
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* vlc_messages.h: messages interface
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* This library provides basic functions for threads to interact with user
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* interface, such as message output.
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*****************************************************************************
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* Copyright (C) 1999, 2000, 2001, 2002 VLC authors and VideoLAN
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* $Id$
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*
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* Authors: Vincent Seguin <seguin@via.ecp.fr>
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* Samuel Hocevar <sam@zoy.org>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2.1 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
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*****************************************************************************/
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#ifndef VLC_MESSAGES_H_
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#define VLC_MESSAGES_H_
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/**
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* \file
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* This file defines structures and functions to handle messages and statistics gathering
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*/
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#include <stdarg.h>
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/**
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* \defgroup messages Messages
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* This library provides basic functions for threads to interact with user
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* interface, such as message output.
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*
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* @{
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*/
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/** Message types */
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enum vlc_log_type
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{
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VLC_MSG_INFO=0, /**< Important information */
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VLC_MSG_ERR, /**< Error */
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VLC_MSG_WARN, /**< Warning */
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VLC_MSG_DBG, /**< Debug */
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};
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/**
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* Log message
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*/
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typedef struct vlc_log_t
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{
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uintptr_t i_object_id; /**< Emitter (temporaly) unique object ID or 0 */
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const char *psz_object_type; /**< Emitter object type name */
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const char *psz_module; /**< Emitter module (source code) */
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const char *psz_header; /**< Additional header (used by VLM media) */
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} vlc_log_t;
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VLC_API void vlc_Log(vlc_object_t *, int,
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const char *, const char *, ...) VLC_FORMAT( 4, 5 );
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VLC_API void vlc_vaLog(vlc_object_t *, int,
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const char *, const char *, va_list);
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#define msg_GenericVa(a, b, c, d, e) vlc_vaLog(VLC_OBJECT(a), b, c, d, e)
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#define msg_Info( p_this, ... ) \
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vlc_Log( VLC_OBJECT(p_this), VLC_MSG_INFO, MODULE_STRING, __VA_ARGS__ )
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#define msg_Err( p_this, ... ) \
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vlc_Log( VLC_OBJECT(p_this), VLC_MSG_ERR, MODULE_STRING, __VA_ARGS__ )
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#define msg_Warn( p_this, ... ) \
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vlc_Log( VLC_OBJECT(p_this), VLC_MSG_WARN, MODULE_STRING, __VA_ARGS__ )
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#define msg_Dbg( p_this, ... ) \
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vlc_Log( VLC_OBJECT(p_this), VLC_MSG_DBG, MODULE_STRING, __VA_ARGS__ )
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#ifndef MODULE_STRING
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# define MODULE_STRING __FILE__
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#endif
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VLC_API const char *vlc_strerror(int);
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VLC_API const char *vlc_strerror_c(int);
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/**
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* @}
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*/
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#endif
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