include/vlc_objects.h

   1 /*****************************************************************************
   2  * vlc_objects.h: vlc_object_t definition and manipulation methods
   3  *****************************************************************************
   4  * Copyright (C) 2002-2008 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Samuel Hocevar <sam@zoy.org>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  22  *****************************************************************************/
  23
  24 /**
  25  * \file
  26  * This file defines the vlc_object_t structure and object types.
  27  */
  28
  29 /**
  30  * \defgroup vlc_object Objects
  31  * @{
  32  */
  33
  34 /* Object types */
  35 #define VLC_OBJECT_LIBVLC      (-2)
  36 #define VLC_OBJECT_MODULE      (-3)
  37 #define VLC_OBJECT_INTF        (-4)
  38 #define VLC_OBJECT_PLAYLIST    (-5)
  39 #define VLC_OBJECT_INPUT       (-7)
  40 #define VLC_OBJECT_DECODER     (-8)
  41 #define VLC_OBJECT_VOUT        (-9)
  42 #define VLC_OBJECT_AOUT        (-10)
  43 #define VLC_OBJECT_PACKETIZER  (-13)
  44 #define VLC_OBJECT_ENCODER     (-14)
  45 #define VLC_OBJECT_ANNOUNCE    (-17)
  46 #define VLC_OBJECT_OPENGL      (-21)
  47 #define VLC_OBJECT_OSDMENU     (-28)
  48 /* Please add new object types below -34 */
  49 /* Please do not add new object types anyway */
  50 #define VLC_OBJECT_GENERIC     (-666)
  51
  52 /* Object search mode */
  53 #define FIND_PARENT         0x0001
  54 #define FIND_CHILD          0x0002
  55 #define FIND_ANYWHERE       0x0003
  56
  57 #define FIND_STRICT         0x0010
  58
  59 /* Object flags */
  60 #define OBJECT_FLAGS_NODBG       0x0001
  61 #define OBJECT_FLAGS_QUIET       0x0002
  62 #define OBJECT_FLAGS_NOINTERACT  0x0004
  63
  64 /* Types */
  65 typedef void (*vlc_destructor_t)(struct vlc_object_t *);
  66
  67 /*****************************************************************************
  68  * The vlc_object_t type. Yes, it's that simple :-)
  69  *****************************************************************************/
  70 /** The main vlc_object_t structure */
  71 struct vlc_object_t
  72 {
  73     VLC_COMMON_MEMBERS
  74 };
  75
  76 /*****************************************************************************
  77  * Prototypes
  78  *****************************************************************************/
  79 VLC_EXPORT( void *, __vlc_object_create, ( vlc_object_t *, int ) );
  80 VLC_EXPORT( void, __vlc_object_set_destructor, ( vlc_object_t *, vlc_destructor_t ) );
  81 VLC_EXPORT( void, __vlc_object_attach, ( vlc_object_t *, vlc_object_t * ) );
  82 VLC_EXPORT( void, __vlc_object_detach, ( vlc_object_t * ) );
  83 #if defined (__GNUC__) && !defined __cplusplus
  84 __attribute__((deprecated))
  85 #endif
  86 VLC_EXPORT( void *, vlc_object_get, ( libvlc_int_t *, int ) );
  87 VLC_EXPORT( void *, __vlc_object_find, ( vlc_object_t *, int, int ) );
  88 VLC_EXPORT( vlc_object_t *, vlc_object_find_name, ( vlc_object_t *, const char *, int ) );
  89 VLC_EXPORT( void, __vlc_object_yield, ( vlc_object_t * ) );
  90 VLC_EXPORT( void, __vlc_object_release, ( vlc_object_t * ) );
  91 VLC_EXPORT( vlc_list_t *, __vlc_list_find, ( vlc_object_t *, int, int ) );
  92 VLC_EXPORT( vlc_list_t *, __vlc_list_children, ( vlc_object_t * ) );
  93 VLC_EXPORT( void, vlc_list_release, ( vlc_list_t * ) );
  94
  95 /*}@*/
  96
  97 #define vlc_object_create(a,b) \
  98     __vlc_object_create( VLC_OBJECT(a), b )
  99
 100 #define vlc_object_set_destructor(a,b) \
 101     __vlc_object_set_destructor( VLC_OBJECT(a), b )
 102
 103 #define vlc_object_detach(a) \
 104     __vlc_object_detach( VLC_OBJECT(a) )
 105
 106 #define vlc_object_attach(a,b) \
 107     __vlc_object_attach( VLC_OBJECT(a), VLC_OBJECT(b) )
 108
 109 #define vlc_object_find(a,b,c) \
 110     __vlc_object_find( VLC_OBJECT(a),b,c)
 111
 112 #define vlc_object_find_name(a,b,c) \
 113     vlc_object_find_name( VLC_OBJECT(a),b,c)
 114
 115 #define vlc_object_yield(a) \
 116     __vlc_object_yield( VLC_OBJECT(a) )
 117
 118 #define vlc_object_release(a) \
 119     __vlc_object_release( VLC_OBJECT(a) )
 120
 121 #define vlc_list_find(a,b,c) \
 122     __vlc_list_find( VLC_OBJECT(a),b,c)
 123
 124 #define vlc_list_children(a) \
 125     __vlc_list_children( VLC_OBJECT(a) )
 126
 127 /* Objects and threading */
 128 VLC_EXPORT( void, __vlc_object_lock, ( vlc_object_t * ) );
 129 #define vlc_object_lock( obj ) \
 130     __vlc_object_lock( VLC_OBJECT( obj ) )
 131
 132 VLC_EXPORT( void, __vlc_object_unlock, ( vlc_object_t * ) );
 133 #define vlc_object_unlock( obj ) \
 134     __vlc_object_unlock( VLC_OBJECT( obj ) )
 135
 136 VLC_EXPORT( void, __vlc_object_wait, ( vlc_object_t * ) );
 137 #define vlc_object_wait( obj ) \
 138     __vlc_object_wait( VLC_OBJECT( obj ) )
 139
 140 VLC_EXPORT( void, __vlc_object_signal_unlocked, ( vlc_object_t * ) );
 141 #define vlc_object_signal_unlocked( obj ) \
 142     __vlc_object_signal_unlocked( VLC_OBJECT( obj ) )
 143
 144 static inline void __vlc_object_signal( vlc_object_t *obj )
 145 {
 146     vlc_object_lock( obj );
 147     vlc_object_signal_unlocked( obj );
 148     vlc_object_unlock( obj );
 149 }
 150 #define vlc_object_signal( obj ) \
 151     __vlc_object_signal( VLC_OBJECT( obj ) )
 152
 153 VLC_EXPORT( void, __vlc_object_kill, ( vlc_object_t * ) );
 154 #define vlc_object_kill(a) \
 155     __vlc_object_kill( VLC_OBJECT(a) )
 156
 157 static inline bool __vlc_object_alive (const vlc_object_t *obj)
 158 {
 159     barrier ();
 160     return !obj->b_die;
 161 }
 162
 163 #define vlc_object_alive(a) \
 164     __vlc_object_alive( VLC_OBJECT(a) )
 165
 166 VLC_EXPORT( int, __vlc_object_waitpipe, ( vlc_object_t *obj ));
 167 #define vlc_object_waitpipe(a) \
 168     __vlc_object_waitpipe( VLC_OBJECT(a) )