git.sesse.net Git - vlc/blob - src/playlist/services_discovery.c

   1 /*****************************************************************************
   2  * services_discovery.c : Manage playlist services_discovery modules
   3  *****************************************************************************
   4  * Copyright (C) 1999-2004 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Clément Stenac <zorglub@videolan.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 #include <vlc/vlc.h>
  24 #include <vlc/input.h>
  25 #include "vlc_playlist.h"
  26 #include "playlist_internal.h"
  27
  28 /*****************************************************************************
  29  * Local prototypes
  30  *****************************************************************************/
  31
  32 static void RunSD( services_discovery_t *p_sd );
  33
  34
  35 /***************************************************************************
  36 ***************************************************************************/
  37
  38 int playlist_ServicesDiscoveryAdd( playlist_t *p_playlist,
  39                                    const char *psz_module )
  40 {
  41     services_discovery_t *p_sd;
  42
  43     p_sd = vlc_object_create( p_playlist, VLC_OBJECT_SD );
  44     p_sd->pf_run = NULL;
  45
  46     p_sd->p_module = module_Need( p_sd, "services_discovery", psz_module, 0 );
  47
  48     if( p_sd->p_module == NULL )
  49     {
  50         msg_Err( p_playlist, "no suitable services discovery module" );
  51         vlc_object_destroy( p_sd );
  52         return VLC_EGENERIC;
  53     }
  54
  55     p_sd->psz_module = strdup( psz_module );
  56     p_sd->b_die = VLC_FALSE;
  57
  58     vlc_mutex_lock( &p_playlist->object_lock );
  59
  60     INSERT_ELEM( p_playlist->pp_sds, p_playlist->i_sds, p_playlist->i_sds,
  61                  p_sd );
  62
  63     vlc_mutex_unlock( &p_playlist->object_lock );
  64
  65     if( vlc_thread_create( p_sd, "services_discovery", RunSD,
  66                            VLC_THREAD_PRIORITY_LOW, VLC_FALSE ) )
  67     {
  68         msg_Err( p_sd, "cannot create services discovery thread" );
  69         vlc_object_destroy( p_sd );
  70         return VLC_EGENERIC;
  71     }
  72
  73
  74     return VLC_SUCCESS;
  75 }
  76
  77 int playlist_ServicesDiscoveryRemove( playlist_t * p_playlist,
  78                                        const char *psz_module )
  79 {
  80     int i;
  81     services_discovery_t *p_sd = NULL;
  82     vlc_mutex_lock( &p_playlist->object_lock );
  83
  84     for( i = 0 ; i< p_playlist->i_sds ; i ++ )
  85     {
  86         if( !strcmp( psz_module, p_playlist->pp_sds[i]->psz_module ) )
  87         {
  88             p_sd = p_playlist->pp_sds[i];
  89             REMOVE_ELEM( p_playlist->pp_sds, p_playlist->i_sds, i );
  90             break;
  91         }
  92     }
  93
  94     if( p_sd )
  95     {
  96         vlc_mutex_unlock( &p_playlist->object_lock );
  97         p_sd->b_die = VLC_TRUE;
  98         vlc_thread_join( p_sd );
  99         free( p_sd->psz_module );
 100         module_Unneed( p_sd, p_sd->p_module );
 101         vlc_mutex_lock( &p_playlist->object_lock );
 102         vlc_object_destroy( p_sd );
 103     }
 104     else
 105     {
 106         msg_Warn( p_playlist, "module %s is not loaded", psz_module );
 107         vlc_mutex_unlock( &p_playlist->object_lock );
 108         return VLC_EGENERIC;
 109     }
 110
 111     vlc_mutex_unlock( &p_playlist->object_lock );
 112     return VLC_SUCCESS;
 113 }
 114
 115 vlc_bool_t playlist_IsServicesDiscoveryLoaded( playlist_t * p_playlist,
 116                                               const char *psz_module )
 117 {
 118     int i;
 119     vlc_mutex_lock( &p_playlist->object_lock );
 120
 121     for( i = 0 ; i< p_playlist->i_sds ; i ++ )
 122     {
 123         if( !strcmp( psz_module, p_playlist->pp_sds[i]->psz_module ) )
 124         {
 125             vlc_mutex_unlock( &p_playlist->object_lock );
 126             return VLC_TRUE;
 127         }
 128     }
 129     vlc_mutex_unlock( &p_playlist->object_lock );
 130     return VLC_FALSE;
 131 }
 132
 133
 134 /**
 135  * Load all service discovery modules in a string
 136  *
 137  * \param p_playlist the playlist
 138  * \param psz_modules a list of modules separated by commads
 139  * return VLC_SUCCESS or an error
 140  */
 141 int playlist_AddSDModules( playlist_t *p_playlist, char *psz_modules )
 142 {
 143     if( psz_modules && *psz_modules )
 144     {
 145         char *psz_parser = psz_modules;
 146         char *psz_next;
 147
 148         while( psz_parser && *psz_parser )
 149         {
 150             while( *psz_parser == ' ' || *psz_parser == ':' )
 151             {
 152                 psz_parser++;
 153             }
 154
 155             if( (psz_next = strchr( psz_parser, ':' ) ) )
 156             {
 157                 *psz_next++ = '\0';
 158             }
 159             if( *psz_parser == '\0' )
 160             {
 161                 break;
 162             }
 163
 164             playlist_ServicesDiscoveryAdd( p_playlist, psz_parser );
 165
 166             psz_parser = psz_next;
 167         }
 168     }
 169     return VLC_SUCCESS;
 170 }
 171
 172 static void RunSD( services_discovery_t *p_sd )
 173 {
 174     p_sd->pf_run( p_sd );
 175     return;
 176 }