1 /*****************************************************************************
2 * playlist.c : Playlist management functions
3 *****************************************************************************
4 * Copyright (C) 1999-2004 the VideoLAN team
7 * Authors: Samuel Hocevar <sam@zoy.org>
8 * Clément Stenac <zorglub@videolan.org>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
23 *****************************************************************************/
30 #include <vlc_input.h>
31 #include <vlc_interface.h>
32 #include <vlc_playlist.h>
33 #include "playlist_internal.h"
34 #include "interface/interface.h"
36 /*****************************************************************************
38 *****************************************************************************/
39 static void RunControlThread ( playlist_t * );
40 static void RunPreparse( playlist_preparse_t * );
41 static void RunFetcher( playlist_fetcher_t * );
43 static void DestroyInteraction( playlist_t * );
45 /*****************************************************************************
46 * Main functions for the global thread
47 *****************************************************************************/
50 * Create the main playlist thread
51 * Additionally to the playlist, this thread controls :
56 * \return an object with a started thread
58 void __playlist_ThreadCreate( vlc_object_t *p_parent )
60 playlist_t *p_playlist = playlist_Create( p_parent );
61 if( !p_playlist ) return;
64 p_playlist->p_stats = (global_stats_t *)malloc( sizeof( global_stats_t ) );
65 if( !p_playlist->p_stats )
67 vlc_object_release( p_playlist );
70 vlc_mutex_init( p_playlist, &p_playlist->p_stats->lock );
71 p_playlist->p_stats_computer = NULL;
74 p_playlist->p_preparse = vlc_object_create( p_playlist,
75 sizeof( playlist_preparse_t ) );
76 if( !p_playlist->p_preparse )
78 msg_Err( p_playlist, "unable to create preparser" );
79 vlc_object_release( p_playlist );
82 p_playlist->p_preparse->i_waiting = 0;
83 p_playlist->p_preparse->pp_waiting = NULL;
85 vlc_object_attach( p_playlist->p_preparse, p_playlist );
86 if( vlc_thread_create( p_playlist->p_preparse, "preparser",
87 RunPreparse, VLC_THREAD_PRIORITY_LOW, VLC_TRUE ) )
89 msg_Err( p_playlist, "cannot spawn preparse thread" );
90 vlc_object_detach( p_playlist->p_preparse );
91 vlc_object_release( p_playlist->p_preparse );
96 p_playlist->p_fetcher = vlc_object_create( p_playlist,
97 sizeof( playlist_fetcher_t ) );
98 if( !p_playlist->p_fetcher )
100 msg_Err( p_playlist, "unable to create secondary preparser" );
101 vlc_object_release( p_playlist );
104 p_playlist->p_fetcher->i_waiting = 0;
105 p_playlist->p_fetcher->p_waiting = NULL;
106 p_playlist->p_fetcher->b_fetch_meta = var_CreateGetInteger( p_playlist,
108 p_playlist->p_fetcher->i_art_policy = var_CreateGetInteger( p_playlist,
111 vlc_object_attach( p_playlist->p_fetcher, p_playlist );
112 if( vlc_thread_create( p_playlist->p_fetcher,
115 VLC_THREAD_PRIORITY_LOW, VLC_TRUE ) )
117 msg_Err( p_playlist, "cannot spawn secondary preparse thread" );
118 vlc_object_detach( p_playlist->p_fetcher );
119 vlc_object_release( p_playlist->p_fetcher );
124 if( vlc_thread_create( p_playlist, "playlist", RunControlThread,
125 VLC_THREAD_PRIORITY_LOW, VLC_TRUE ) )
127 msg_Err( p_playlist, "cannot spawn playlist thread" );
128 vlc_object_release( p_playlist );
132 /* The object has been initialized, now attach it */
133 vlc_object_attach( p_playlist, p_parent );
139 * Destroy the playlist global thread.
141 * Deinits all things controlled by the playlist global thread
142 * \param p_playlist the playlist thread to destroy
143 * \return VLC_SUCCESS or an error
145 int playlist_ThreadDestroy( playlist_t * p_playlist )
147 // Tell playlist to go to last loop
148 vlc_object_kill( p_playlist );
151 if( p_playlist->p_preparse )
153 vlc_object_kill( p_playlist->p_preparse );
154 vlc_thread_join( p_playlist->p_preparse );
155 free( p_playlist->p_preparse->pp_waiting );
156 vlc_object_detach( p_playlist->p_preparse );
157 vlc_object_release( p_playlist->p_preparse );
161 if( p_playlist->p_fetcher )
163 vlc_object_kill( p_playlist->p_fetcher );
164 vlc_thread_join( p_playlist->p_fetcher );
165 free( p_playlist->p_fetcher->p_waiting );
166 vlc_object_detach( p_playlist->p_fetcher );
167 vlc_object_release( p_playlist->p_fetcher );
170 // Wait for thread to complete
171 vlc_thread_join( p_playlist );
174 vlc_mutex_destroy( &p_playlist->p_stats->lock );
175 if( p_playlist->p_stats )
176 free( p_playlist->p_stats );
178 DestroyInteraction( p_playlist );
180 playlist_Destroy( p_playlist );
186 * Run the main control thread itself
188 static void RunControlThread ( playlist_t *p_playlist )
192 /* Tell above that we're ready */
193 vlc_thread_ready( p_playlist );
194 while( !p_playlist->b_die )
198 if( p_playlist->p_interaction )
199 intf_InteractionManage( p_playlist );
201 playlist_MainLoop( p_playlist );
202 if( p_playlist->b_cant_sleep )
204 /* 100 ms is an acceptable delay for playlist operations */
205 msleep( INTF_IDLE_SLEEP*2 );
210 vlc_cond_wait( &p_playlist->object_wait, &p_playlist->object_lock );
214 playlist_LastLoop( p_playlist );
217 /*****************************************************************************
218 * Preparse-specific functions
219 *****************************************************************************/
220 static void RunPreparse ( playlist_preparse_t *p_obj )
222 /* Tell above that we're ready */
223 vlc_thread_ready( p_obj );
224 playlist_PreparseLoop( p_obj );
227 static void RunFetcher( playlist_fetcher_t *p_obj )
229 /* Tell above that we're ready */
230 vlc_thread_ready( p_obj );
231 playlist_FetcherLoop( p_obj );
234 /*****************************************************************************
235 * Interaction functions
236 *****************************************************************************/
237 static void DestroyInteraction( playlist_t *p_playlist )
239 if( p_playlist->p_interaction )
241 intf_InteractionDestroy( p_playlist->p_interaction );
242 p_playlist->p_interaction = NULL;