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 static void RunSD( services_discovery_t *p_sd );
  29
  30 int playlist_ServicesDiscoveryAdd( playlist_t *p_playlist,  const char *psz_modules )
  31 {
  32     if( psz_modules && *psz_modules )
  33     {
  34         char *psz_parser = psz_modules;
  35         char *psz_next;
  36
  37         while( psz_parser && *psz_parser )
  38         {
  39             while( *psz_parser == ' ' || *psz_parser == ':' || *psz_parser == ',' )
  40                 psz_parser++;
  41
  42             if( (psz_next = strchr( psz_parser, ':' ) ) )
  43                 *psz_next++ = '\0';
  44
  45             if( *psz_parser == '\0' )
  46                 break;
  47             fprintf(stderr,"Add %s\n", psz_parser);
  48             /* Perform the addition */
  49             {
  50                 services_discovery_t *p_sd = vlc_object_create( p_playlist,
  51                                                                 VLC_OBJECT_SD );
  52                 p_sd->pf_run = NULL;
  53                 p_sd->p_module = module_Need( p_sd, "services_discovery", psz_parser, 0 );
  54
  55                 if( p_sd->p_module == NULL )
  56                 {
  57                     msg_Err( p_playlist, "no suitable services discovery module" );
  58                     vlc_object_destroy( p_sd );
  59                     return VLC_EGENERIC;
  60                 }
  61                 p_sd->psz_module = strdup( psz_parser );
  62                 p_sd->b_die = VLC_FALSE;
  63
  64                 PL_LOCK;
  65                 TAB_APPEND( p_playlist->i_sds, p_playlist->pp_sds, p_sd );
  66                 PL_UNLOCK;
  67
  68                 if( !p_sd->pf_run ) {
  69                     psz_parser = psz_next;
  70                     continue;
  71                 }
  72
  73                 if( vlc_thread_create( p_sd, "services_discovery", RunSD,
  74                                        VLC_THREAD_PRIORITY_LOW, VLC_FALSE ) )
  75                 {
  76                     msg_Err( p_sd, "cannot create services discovery thread" );
  77                     vlc_object_destroy( p_sd );
  78                     return VLC_EGENERIC;
  79                 }
  80             }
  81             psz_parser = psz_next;
  82         }
  83     }
  84     return VLC_SUCCESS;
  85 }
  86
  87 int playlist_ServicesDiscoveryRemove( playlist_t * p_playlist,
  88                                        const char *psz_module )
  89 {
  90     int i;
  91     services_discovery_t *p_sd = NULL;
  92
  93     PL_LOCK;
  94     for( i = 0 ; i< p_playlist->i_sds ; i ++ )
  95     {
  96         if( !strcmp( psz_module, p_playlist->pp_sds[i]->psz_module ) )
  97         {
  98             p_sd = p_playlist->pp_sds[i];
  99             REMOVE_ELEM( p_playlist->pp_sds, p_playlist->i_sds, i );
 100             break;
 101         }
 102     }
 103
 104     if( p_sd )
 105     {
 106         PL_UNLOCK;
 107         p_sd->b_die = VLC_TRUE;
 108         if( p_sd->pf_run ) vlc_thread_join( p_sd );
 109
 110         free( p_sd->psz_module );
 111         module_Unneed( p_sd, p_sd->p_module );
 112         PL_LOCK;
 113         vlc_object_destroy( p_sd );
 114     }
 115     else
 116     {
 117         msg_Warn( p_playlist, "module %s is not loaded", psz_module );
 118         PL_UNLOCK;
 119         return VLC_EGENERIC;
 120     }
 121     PL_UNLOCK;
 122     return VLC_SUCCESS;
 123 }
 124
 125 vlc_bool_t playlist_IsServicesDiscoveryLoaded( playlist_t * p_playlist,
 126                                               const char *psz_module )
 127 {
 128     int i;
 129     PL_LOCK;
 130
 131     for( i = 0 ; i< p_playlist->i_sds ; i ++ )
 132     {
 133         if( !strcmp( psz_module, p_playlist->pp_sds[i]->psz_module ) )
 134         {
 135             PL_UNLOCK;
 136             return VLC_TRUE;
 137         }
 138     }
 139     PL_UNLOCK;
 140     return VLC_FALSE;
 141 }
 142
 143 static void RunSD( services_discovery_t *p_sd )
 144 {
 145     p_sd->pf_run( p_sd );
 146     return;
 147 }