]> git.sesse.net Git - vlc/blobdiff - modules/services_discovery/podcast.c
simplify service discoveries
[vlc] / modules / services_discovery / podcast.c
index 20c1bceb4bb91f3f65812d76e6130c9d8f338bc3..57e9ae24aa07acc19ac5e2b58e79d7dbd875bd7b 100644 (file)
  * Includes
  *****************************************************************************/
 
-#include <vlc/vlc.h>
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <vlc_common.h>
+#include <vlc_plugin.h>
 #include <vlc_playlist.h>
 #include <vlc_network.h>
+#include <assert.h>
 
 #include <errno.h>                                                 /* ENOMEM */
 
@@ -56,12 +62,12 @@ static void Close( vlc_object_t * );
 
 vlc_module_begin();
     set_shortname( "Podcast");
-    set_description( _("Podcasts") );
+    set_description( N_("Podcasts") );
     set_category( CAT_PLAYLIST );
     set_subcategory( SUBCAT_PLAYLIST_SD );
 
     add_string( "podcast-urls", NULL, NULL,
-                URLS_TEXT, URLS_LONGTEXT, VLC_FALSE );
+                URLS_TEXT, URLS_LONGTEXT, false );
         change_autosave();
 
     set_capability( "services_discovery", 0 );
@@ -83,13 +89,16 @@ struct services_discovery_sys_t
     char **ppsz_urls;
     int i_urls;
 
-    vlc_bool_t b_update;
+    vlc_thread_t thread;
+    vlc_mutex_t lock;
+    vlc_cond_t  wait;
+    bool b_update;
 };
 
 /*****************************************************************************
  * Local prototypes
  *****************************************************************************/
-static void Run( services_discovery_t *p_intf );
+static void *Run( void * );
 static int UrlsChange( vlc_object_t *, char const *, vlc_value_t,
                        vlc_value_t, void * );
 static void ParseUrls( services_discovery_t *p_sd, char *psz_urls );
@@ -102,19 +111,30 @@ static int Open( vlc_object_t *p_this )
     services_discovery_t *p_sd = ( services_discovery_t* )p_this;
     services_discovery_sys_t *p_sys  = malloc(
                                     sizeof( services_discovery_sys_t ) );
+    if( !p_sys )
+        return VLC_ENOMEM;
 
     p_sys->i_urls = 0;
     p_sys->ppsz_urls = NULL;
     p_sys->i_input = 0;
     p_sys->pp_input = NULL;
-    p_sys->b_update = VLC_TRUE;
+    vlc_mutex_init( &p_sys->lock );
+    vlc_cond_init( &p_sys->wait );
+    p_sys->b_update = true;
 
-    p_sd->pf_run = Run;
     p_sd->p_sys  = p_sys;
-
     /* Give us a name */
     services_discovery_SetLocalizedName( p_sd, _("Podcasts") );
 
+    /* Launch the callback associated with this variable */
+    var_Create( p_sd, "podcast-urls", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
+    var_AddCallback( p_sd, "podcast-urls", UrlsChange, p_sys );
+
+    if (vlc_clone (&p_sys->thread, Run, p_sd, VLC_THREAD_PRIORITY_LOW))
+    {
+        free (p_sys);
+        return VLC_EGENERIC;
+    }
     return VLC_SUCCESS;
 }
 
@@ -126,12 +146,20 @@ static void Close( vlc_object_t *p_this )
     services_discovery_t *p_sd = ( services_discovery_t* )p_this;
     services_discovery_sys_t *p_sys  = p_sd->p_sys;
     int i;
+
+    vlc_cancel (p_sys->thread);
+    vlc_join (p_sys->thread, NULL);
+
+    var_DelCallback( p_sd, "podcast-urls", UrlsChange, p_sys );
+    vlc_cond_destroy( &p_sys->wait );
+    vlc_mutex_destroy( &p_sys->lock );
+
     for( i = 0; i < p_sys->i_input; i++ )
     {
         if( p_sd->p_sys->pp_input[i] )
         {
             input_StopThread( p_sd->p_sys->pp_input[i] );
-            input_DestroyThread( p_sd->p_sys->pp_input[i] );
+            vlc_object_release( p_sd->p_sys->pp_input[i] );
             p_sd->p_sys->pp_input[i] = NULL;
         }
     }
@@ -144,49 +172,56 @@ static void Close( vlc_object_t *p_this )
 /*****************************************************************************
  * Run: main thread
  *****************************************************************************/
-static void Run( services_discovery_t *p_sd )
+static void *Run( void *data )
 {
+    services_discovery_t *p_sd = data;
     services_discovery_sys_t *p_sys  = p_sd->p_sys;
 
-    char *psz_urls = var_CreateGetString( p_sd, "podcast-urls" );
-    free( psz_urls ); /* Gruik ? */
-    var_AddCallback( p_sd, "podcast-urls", UrlsChange, p_sys );
-
-    while( !p_sd->b_die )
+    vlc_mutex_lock( &p_sys->lock );
+    mutex_cleanup_push( &p_sys->lock );
+    for( ;; )
     {
-        int i;
-        if( p_sys->b_update == VLC_TRUE )
-        {
-            msg_Dbg( p_sd, "Update required" );
-            psz_urls = var_GetNonEmptyString( p_sd, "podcast-urls" );
-            if( psz_urls != NULL )
-                ParseUrls( p_sd, psz_urls );
-            free( psz_urls );
-            p_sys->b_update = VLC_FALSE;
-        }
+        while( !p_sys->b_update )
+            vlc_cond_wait( &p_sys->wait, &p_sys->lock );
 
-        for( i = 0; i < p_sd->p_sys->i_input; i++ )
+        int canc = vlc_savecancel ();
+        msg_Dbg( p_sd, "Update required" );
+        char* psz_urls = var_GetNonEmptyString( p_sd, "podcast-urls" );
+        if( psz_urls != NULL )
+            ParseUrls( p_sd, psz_urls );
+        free( psz_urls );
+        p_sys->b_update = false;
+
+        for( int i = 0; i < p_sd->p_sys->i_input; i++ )
         {
             if( p_sd->p_sys->pp_input[i]->b_eof
                 || p_sd->p_sys->pp_input[i]->b_error )
             {
                 input_StopThread( p_sd->p_sys->pp_input[i] );
-                input_DestroyThread( p_sd->p_sys->pp_input[i] );
+                vlc_object_release( p_sd->p_sys->pp_input[i] );
                 p_sd->p_sys->pp_input[i] = NULL;
                 REMOVE_ELEM( p_sys->pp_input, p_sys->i_input, i );
                 i--;
             }
         }
-        msleep( 500 );
+        vlc_restorecancel (canc);
     }
+    vlc_cleanup_pop();
+    assert(0); /* dead code */
 }
 
 static int UrlsChange( vlc_object_t *p_this, char const *psz_var,
                        vlc_value_t oldval, vlc_value_t newval,
                        void *p_data )
 {
+    VLC_UNUSED(p_this); VLC_UNUSED(psz_var); VLC_UNUSED(oldval);
+    VLC_UNUSED(newval);
     services_discovery_sys_t *p_sys  = (services_discovery_sys_t *)p_data;
-    p_sys->b_update = VLC_TRUE;
+
+    vlc_mutex_lock( &p_sys->lock );
+    p_sys->b_update = true;
+    vlc_cond_signal( &p_sys->wait );
+    vlc_mutex_unlock( &p_sys->lock );
     return VLC_SUCCESS;
 }
 
@@ -210,10 +245,11 @@ static void ParseUrls( services_discovery_t *p_sd, char *psz_urls )
             input_item_t *p_input;
             INSERT_ELEM( p_sys->ppsz_urls, p_sys->i_urls, p_sys->i_urls,
                          strdup( psz_urls ) );
-            p_input = input_ItemNewExt( p_sd, psz_urls,
+            p_input = input_item_NewExt( p_sd, psz_urls,
                                         psz_urls, 0, NULL, -1 );
-            input_ItemAddOption( p_input, "demux=podcast" );
+            input_item_AddOption( p_input, "demux=podcast" );
             services_discovery_AddItem( p_sd, p_input, NULL /* no cat */ );
+            vlc_gc_decref( p_input );
             INSERT_ELEM( p_sys->pp_input, p_sys->i_input, p_sys->i_input,
                          input_CreateThread( p_sd, p_input ) );
         }