/*****************************************************************************
* podcast.c: Podcast services discovery module
*****************************************************************************
- * Copyright (C) 2005 the VideoLAN team
+ * Copyright (C) 2005-2009 the VideoLAN team
* $Id$
*
* Authors: Antoine Cellerier <dionoea -at- videolan -dot- org>
/*****************************************************************************
* Includes
*****************************************************************************/
-#include <stdlib.h> /* malloc(), free() */
-#include <vlc/vlc.h>
-#include <vlc/intf.h>
-
-#include <vlc/input.h>
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
-#include "network.h"
+#include <vlc_common.h>
+#include <vlc_plugin.h>
+#include <vlc_services_discovery.h>
-#include <errno.h> /* ENOMEM */
+#include <vlc_network.h>
+#include <assert.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
-#ifdef HAVE_SYS_TIME_H
-# include <sys/time.h>
-#endif
/************************************************************************
* Macros and definitions
*****************************************************************************/
/* Callbacks */
- static int Open ( vlc_object_t * );
- static void Close( vlc_object_t * );
+static int Open ( vlc_object_t * );
+static void Close( vlc_object_t * );
+
+VLC_SD_PROBE_HELPER("podcast", "Podcasts", SD_CAT_INTERNET)
#define URLS_TEXT N_("Podcast URLs list")
-#define URLS_LONGTEXT N_("Podcast '|' (pipe) seperated URLs list")
+#define URLS_LONGTEXT N_("Enter the list of podcasts to retrieve, " \
+ "separated by '|' (pipe)." )
-vlc_module_begin();
- set_shortname( "Podcast");
- set_description( _("Podcast Service Discovery") );
- set_category( CAT_PLAYLIST );
- set_subcategory( SUBCAT_PLAYLIST_SD );
+vlc_module_begin ()
+ set_shortname( "Podcast")
+ 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 );
- set_callbacks( Open, Close );
+ set_capability( "services_discovery", 0 )
+ set_callbacks( Open, Close )
-vlc_module_end();
+ VLC_SD_PROBE_SUBMODULE
+
+vlc_module_end ()
/*****************************************************************************
* Local structures
*****************************************************************************/
+enum {
+ UPDATE_URLS,
+ UPDATE_REQUEST
+}; /* FIXME Temporary. Updating by compound urls string to be removed later. */
+
struct services_discovery_sys_t
{
/* playlist node */
- playlist_item_t *p_node;
- input_thread_t *p_input;
+ input_thread_t **pp_input;
+ int i_input;
char **ppsz_urls;
int i_urls;
+
+ input_item_t **pp_items;
+ int i_items;
+
+ vlc_thread_t thread;
+ vlc_mutex_t lock;
+ vlc_cond_t wait;
+ bool b_update;
+ char *psz_request;
+ int update_type;
};
/*****************************************************************************
* Local prototypes
*****************************************************************************/
-
-/* Main functions */
- 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 int Request( vlc_object_t *, char const *, vlc_value_t,
+ vlc_value_t, void * );
+static void ParseRequest( services_discovery_t *p_sd );
+static void ParseUrls( services_discovery_t *p_sd, char *psz_urls );
+static void SaveUrls( services_discovery_t *p_sd );
/*****************************************************************************
* Open: initialize and create stuff
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->pp_items = NULL;
+ p_sys->i_items = 0;
+ vlc_mutex_init( &p_sys->lock );
+ vlc_cond_init( &p_sys->wait );
+ p_sys->b_update = true;
+ p_sys->psz_request = NULL;
+ p_sys->update_type = UPDATE_URLS;
- vlc_value_t val;
- playlist_t *p_playlist;
- playlist_view_t *p_view;
- playlist_item_t *p_item;
-
- int i, j;
- char *psz_buf;
- char *psz_tmp = psz_buf = var_CreateGetString( p_sd, "podcast-urls" );
-
- i = 0;
- p_sys->i_urls = 1;
- while( psz_buf[i] != 0 )
- if( psz_buf[i++] == '|' )
- p_sys->i_urls++;
-
- p_sys->ppsz_urls = (char **)malloc( p_sys->i_urls * sizeof( char * ) );
+ p_sd->p_sys = p_sys;
- i = 0;
- j = 0;
- while( psz_buf[i] != 0 )
- {
- if( psz_buf[i] == '|' )
- {
- psz_buf[i] = 0;
- p_sys->ppsz_urls[j] = strdup( psz_tmp );
- i++;
- j++;
- psz_tmp = psz_buf+i;
- }
- else
- i++;
- }
- p_sys->ppsz_urls[j] = strdup( psz_tmp );
- free( psz_buf );
+ /* 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 );
- p_sd->pf_run = Run;
- p_sd->p_sys = p_sys;
+ var_Create( p_sd, "podcast-request", VLC_VAR_STRING );
+ var_AddCallback( p_sd, "podcast-request", Request, p_sys );
- /* Create our playlist node */
- p_playlist = (playlist_t *)vlc_object_find( p_sd, VLC_OBJECT_PLAYLIST,
- FIND_ANYWHERE );
- if( !p_playlist )
+ if (vlc_clone (&p_sys->thread, Run, p_sd, VLC_THREAD_PRIORITY_LOW))
{
- msg_Warn( p_sd, "unable to find playlist, cancelling");
+ var_DelCallback( p_sd, "podcast-request", Request, p_sys );
+ var_DelCallback( p_sd, "podcast-urls", UrlsChange, p_sys );
+ vlc_cond_destroy( &p_sys->wait );
+ vlc_mutex_destroy( &p_sys->lock );
+ free (p_sys);
return VLC_EGENERIC;
}
-
- p_view = playlist_ViewFind( p_playlist, VIEW_CATEGORY );
- p_sys->p_node = playlist_NodeCreate( p_playlist, VIEW_CATEGORY,
- _("Podcast"), p_view->p_root );
- for( i = 0; i < p_sys->i_urls; i++ )
- {
- asprintf( &psz_buf, "%s", p_sys->ppsz_urls[i] );
- p_item = playlist_ItemNew( p_playlist, psz_buf,
- p_sys->ppsz_urls[i] );
- free( psz_buf );
- playlist_ItemAddOption( p_item, "demux=podcast" );
- playlist_NodeAddItem( p_playlist, p_item,
- p_sys->p_node->pp_parents[0]->i_view,
- p_sys->p_node, PLAYLIST_APPEND,
- PLAYLIST_END );
-
- /* We need to declare the parents of the node as the same of the
- * parent's ones */
- playlist_CopyParents( p_sys->p_node, p_item );
- p_sys->p_input = input_CreateThread( p_playlist, &p_item->input );
- }
-
-
- p_sys->p_node->i_flags |= PLAYLIST_RO_FLAG;
- val.b_bool = VLC_TRUE;
- var_Set( p_playlist, "intf-change", val );
-
- vlc_object_release( p_playlist );
-
return VLC_SUCCESS;
}
{
services_discovery_t *p_sd = ( services_discovery_t* )p_this;
services_discovery_sys_t *p_sys = p_sd->p_sys;
- playlist_t *p_playlist = (playlist_t *) vlc_object_find( p_sd,
- VLC_OBJECT_PLAYLIST, FIND_ANYWHERE );
int i;
- if( p_sd->p_sys->p_input )
- {
- input_StopThread( p_sd->p_sys->p_input );
- input_DestroyThread( p_sd->p_sys->p_input );
- vlc_object_detach( p_sd->p_sys->p_input );
- vlc_object_destroy( p_sd->p_sys->p_input );
- p_sd->p_sys->p_input = NULL;
- }
- if( p_playlist )
+
+ vlc_cancel (p_sys->thread);
+ vlc_join (p_sys->thread, NULL);
+
+ var_DelCallback( p_sd, "podcast-urls", UrlsChange, p_sys );
+ var_DelCallback( p_sd, "podcast-request", Request, p_sys );
+ vlc_cond_destroy( &p_sys->wait );
+ vlc_mutex_destroy( &p_sys->lock );
+
+ for( i = 0; i < p_sys->i_input; i++ )
{
- playlist_NodeDelete( p_playlist, p_sys->p_node, VLC_TRUE, VLC_TRUE );
- vlc_object_release( p_playlist );
+ input_thread_t *p_input = p_sd->p_sys->pp_input[i];
+ if( !p_input )
+ continue;
+
+ input_Stop( p_input, true );
+ vlc_thread_join( p_input );
+ vlc_object_release( p_input );
+
+ p_sd->p_sys->pp_input[i] = NULL;
}
+ free( p_sd->p_sys->pp_input );
for( i = 0; i < p_sys->i_urls; i++ ) free( p_sys->ppsz_urls[i] );
free( p_sys->ppsz_urls );
+ for( i = 0; i < p_sys->i_items; i++ ) vlc_gc_decref( p_sys->pp_items[i] );
+ free( p_sys->pp_items );
+ free( p_sys->psz_request );
free( p_sys );
}
/*****************************************************************************
* Run: main thread
*****************************************************************************/
-static void Run( services_discovery_t *p_sd )
+static void *Run( void *data )
{
- while( !p_sd->b_die )
+ services_discovery_t *p_sd = data;
+ services_discovery_sys_t *p_sys = p_sd->p_sys;
+
+ vlc_mutex_lock( &p_sys->lock );
+ mutex_cleanup_push( &p_sys->lock );
+ for( ;; )
{
- if( p_sd->p_sys->p_input &&
- ( p_sd->p_sys->p_input->b_eof || p_sd->p_sys->p_input->b_error ) )
+ while( !p_sys->b_update )
+ vlc_cond_wait( &p_sys->wait, &p_sys->lock );
+
+ int canc = vlc_savecancel ();
+ msg_Dbg( p_sd, "Update required" );
+
+ if( p_sys->update_type == UPDATE_URLS )
{
- input_StopThread( p_sd->p_sys->p_input );
- input_DestroyThread( p_sd->p_sys->p_input );
- vlc_object_detach( p_sd->p_sys->p_input );
- vlc_object_destroy( p_sd->p_sys->p_input );
- p_sd->p_sys->p_input = NULL;
+ char* psz_urls = var_GetNonEmptyString( p_sd, "podcast-urls" );
+ ParseUrls( p_sd, psz_urls );
+ free( psz_urls );
}
- msleep( 100000 );
+ else if( p_sys->update_type == UPDATE_REQUEST )
+ {
+ ParseRequest( p_sd );
+ }
+
+ p_sys->b_update = false;
+
+ for( int i = 0; i < p_sd->p_sys->i_input; i++ )
+ {
+ input_thread_t *p_input = p_sd->p_sys->pp_input[i];
+
+ if( p_input->b_eof || p_input->b_error )
+ {
+ input_Stop( p_input, false );
+ vlc_thread_join( p_input );
+ vlc_object_release( p_input );
+
+ p_sd->p_sys->pp_input[i] = NULL;
+ REMOVE_ELEM( p_sys->pp_input, p_sys->i_input, i );
+ i--;
+ }
+ }
+ 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;
+
+ vlc_mutex_lock( &p_sys->lock );
+ p_sys->b_update = true;
+ p_sys->update_type = UPDATE_URLS;
+ vlc_cond_signal( &p_sys->wait );
+ vlc_mutex_unlock( &p_sys->lock );
+ return VLC_SUCCESS;
+}
+
+static int Request( 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);
+ services_discovery_sys_t *p_sys = (services_discovery_sys_t *)p_data;
+
+ vlc_mutex_lock( &p_sys->lock );
+ free( p_sys->psz_request );
+ p_sys->psz_request = NULL;
+ if( newval.psz_string && *newval.psz_string ) {
+ p_sys->psz_request = strdup( newval.psz_string );
+ p_sys->b_update = true;
+ p_sys->update_type = UPDATE_REQUEST;
+ vlc_cond_signal( &p_sys->wait );
+ }
+ vlc_mutex_unlock( &p_sys->lock );
+ return VLC_SUCCESS;
+}
+
+static void ParseUrls( services_discovery_t *p_sd, char *psz_urls )
+{
+ services_discovery_sys_t *p_sys = p_sd->p_sys;
+ int i_new_items = 0;
+ input_item_t **pp_new_items = NULL;
+
+ int i_new_urls = 0;
+ char **ppsz_new_urls = NULL;
+
+ int i, j;
+
+ for( ;; )
+ {
+ if( !psz_urls ) break;
+
+ char *psz_tok = strchr( psz_urls, '|' );
+ if( psz_tok ) *psz_tok = '\0';
+
+ for( i = 0; i < p_sys->i_urls; i++ )
+ if( !strcmp( psz_urls, p_sys->ppsz_urls[i] ) )
+ break;
+ if( i == p_sys->i_urls )
+ {
+ INSERT_ELEM( ppsz_new_urls, i_new_urls, i_new_urls,
+ strdup( psz_urls ) );
+
+ input_item_t *p_input;
+ p_input = input_item_New( p_sd, psz_urls, psz_urls );
+ input_item_AddOption( p_input, "demux=podcast", VLC_INPUT_OPTION_TRUSTED );
+
+ INSERT_ELEM( pp_new_items, i_new_items, i_new_items, p_input );
+ services_discovery_AddItem( p_sd, p_input, NULL /* no cat */ );
+
+ INSERT_ELEM( p_sys->pp_input, p_sys->i_input, p_sys->i_input,
+ input_CreateAndStart( p_sd, p_input, NULL ) );
+ }
+ else
+ {
+ INSERT_ELEM( ppsz_new_urls, i_new_urls, i_new_urls,
+ strdup( p_sys->ppsz_urls[i]) );
+ INSERT_ELEM( pp_new_items, i_new_items, i_new_items, p_sys->pp_items[i] );
+ }
+ if( psz_tok ) psz_urls = psz_tok+1;
+ else break;
+ }
+
+ /* delete removed items and signal the removal */
+ for( i = 0; i<p_sys->i_items; ++i )
+ {
+ for( j = 0; j < i_new_items; ++j )
+ if( pp_new_items[j] == p_sys->pp_items[i] ) break;
+ if( j == i_new_items )
+ {
+ services_discovery_RemoveItem( p_sd, p_sys->pp_items[i] );
+ vlc_gc_decref( p_sys->pp_items[i] );
+ }
+ }
+ free( p_sys->pp_items );
+ for( int i = 0; i < p_sys->i_urls; i++ ) free( p_sys->ppsz_urls[i] );
+ free( p_sys->ppsz_urls );
+
+ p_sys->ppsz_urls = ppsz_new_urls;
+ p_sys->i_urls = i_new_urls;
+ p_sys->pp_items = pp_new_items;
+ p_sys->i_items = i_new_items;
+}
+
+static void ParseRequest( services_discovery_t *p_sd )
+{
+ services_discovery_sys_t *p_sys = p_sd->p_sys;
+
+ char *psz_request = p_sys->psz_request;
+
+ int i;
+
+ char *psz_tok = strchr( psz_request, ':' );
+ if( !psz_tok ) return;
+ *psz_tok = '\0';
+ if( !strcmp( psz_request, "ADD" ) )
+ {
+ psz_request = psz_tok + 1;
+ for( i = 0; i<p_sys->i_urls; i++ )
+ if( !strcmp(p_sys->ppsz_urls[i],psz_request) )
+ break;
+ if( i == p_sys->i_urls )
+ {
+ INSERT_ELEM( p_sys->ppsz_urls, p_sys->i_urls, p_sys->i_urls,
+ strdup( psz_request ) );
+
+ input_item_t *p_input;
+ p_input = input_item_New( p_sd, psz_request, psz_request );
+ input_item_AddOption( p_input, "demux=podcast", VLC_INPUT_OPTION_TRUSTED );
+
+ INSERT_ELEM( p_sys->pp_items, p_sys->i_items, p_sys->i_items, p_input );
+ services_discovery_AddItem( p_sd, p_input, NULL /* no cat */ );
+
+ INSERT_ELEM( p_sys->pp_input, p_sys->i_input, p_sys->i_input,
+ input_CreateAndStart( p_sd, p_input, NULL ) );
+ SaveUrls( p_sd );
+ }
+ }
+ else if ( !strcmp( psz_request, "RM" ) )
+ {
+ psz_request = psz_tok + 1;
+ for( i = 0; i<p_sys->i_urls; i++ )
+ if( !strcmp(p_sys->ppsz_urls[i],psz_request) )
+ break;
+ if( i != p_sys->i_urls )
+ {
+ services_discovery_RemoveItem( p_sd, p_sys->pp_items[i] );
+ vlc_gc_decref( p_sys->pp_items[i] );
+ REMOVE_ELEM( p_sys->ppsz_urls, p_sys->i_urls, i );
+ REMOVE_ELEM( p_sys->pp_items, p_sys->i_items, i );
+ }
+ SaveUrls( p_sd );
+ }
+
+ free( p_sys->psz_request );
+ p_sys->psz_request = NULL;
+}
+
+static void SaveUrls( services_discovery_t *p_sd )
+{
+ services_discovery_sys_t *p_sys = p_sd->p_sys;
+ int i;
+ char *psz_urls;
+ int len = 0;
+
+ for( i=0; i < p_sys->i_urls; i++ )
+ len += strlen( p_sys->ppsz_urls[i] ) + 1;
+
+ psz_urls = (char*) calloc( len, sizeof(char) );
+
+ for( i=0; i < p_sys->i_urls; i++ )
+ {
+ strcat( psz_urls, p_sys->ppsz_urls[i] );
+ if( i < p_sys->i_urls - 1 ) strcat( psz_urls, "|" );
+ }
+
+ config_PutPsz( p_sd, "podcast-urls", psz_urls );
+ config_SaveConfigFile( p_sd, "podcast" );
+
+ free( psz_urls );
}
projects / vlc / blobdiff