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Commit 8f0f6c74 authored by Laurent Aimar's avatar Laurent Aimar
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Clean up main playlist thread. 

No useless wake up and simplify.
Fix a few race conditions with deactivation.
parent b2efc40a
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Showing with 211 additions and 205 deletions
src/playlist/control.c
View file @ 8f0f6c74
......@@ -190,7 +190,10 @@ int playlist_PreparseEnqueue( playlist_t *p_playlist,
{
playlist_private_t *p_sys = pl_priv(p_playlist);
playlist_preparser_Push( p_sys->p_preparser, p_item );
PL_LOCK;
if( p_sys->p_preparser )
playlist_preparser_Push( p_sys->p_preparser, p_item );
PL_UNLOCK;
return VLC_SUCCESS;
}
......@@ -200,7 +203,10 @@ int playlist_AskForArtEnqueue( playlist_t *p_playlist,
{
playlist_private_t *p_sys = pl_priv(p_playlist);
playlist_fetcher_Push( p_sys->p_fetcher, p_item );
PL_LOCK;
if( p_sys->p_fetcher )
playlist_fetcher_Push( p_sys->p_fetcher, p_item );
PL_UNLOCK;
return VLC_SUCCESS;
}
......
src/playlist/engine.c
View file @ 8f0f6c74
......@@ -174,11 +174,12 @@ static void playlist_Destructor( vlc_object_t * p_this )
playlist_t *p_playlist = (playlist_t *)p_this;
playlist_private_t *p_sys = pl_priv(p_playlist);
assert( !p_sys->p_input );
assert( !p_sys->p_sout );
assert( !p_sys->p_preparser );
assert( !p_sys->p_fetcher );
msg_Err( p_this, "Destroyed" );
msg_Dbg( p_this, "Destroyed" );
}
/** Get current playing input.
......
src/playlist/thread.c
View file @ 8f0f6c74
......@@ -85,14 +85,23 @@ void playlist_Deactivate( playlist_t *p_playlist )
vlc_thread_join( p_playlist );
assert( !p_sys->p_input );
if( p_sys->p_preparser )
playlist_preparser_Delete( p_sys->p_preparser );
if( p_sys->p_fetcher )
playlist_fetcher_Delete( p_sys->p_fetcher );
PL_LOCK;
playlist_preparser_t *p_preparser = p_sys->p_preparser;
playlist_fetcher_t *p_fetcher = p_sys->p_fetcher;
p_sys->p_preparser = NULL;
p_sys->p_fetcher = NULL;
PL_UNLOCK;
if( p_preparser )
playlist_preparser_Delete( p_preparser );
if( p_fetcher )
playlist_fetcher_Delete( p_fetcher );
/* close the remaining sout-keep */
if( p_sys->p_sout )
sout_DeleteInstance( p_sys->p_sout );
p_sys->p_sout = NULL;
/* */
playlist_MLDump( p_playlist );
......@@ -111,22 +120,18 @@ void playlist_Deactivate( playlist_t *p_playlist )
free( p_del );
FOREACH_END();
ARRAY_RESET( p_playlist->all_items );
FOREACH_ARRAY( playlist_item_t *p_del, pl_priv(p_playlist)->items_to_delete )
FOREACH_ARRAY( playlist_item_t *p_del, p_sys->items_to_delete )
free( p_del->pp_children );
vlc_gc_decref( p_del->p_input );
free( p_del );
FOREACH_END();
ARRAY_RESET( pl_priv(p_playlist)->items_to_delete );
ARRAY_RESET( p_sys->items_to_delete );
ARRAY_RESET( p_playlist->items );
ARRAY_RESET( p_playlist->current );
PL_UNLOCK;
/* The NULL are there only to assert in playlist destructor */
p_sys->p_sout = NULL;
p_sys->p_preparser = NULL;
p_sys->p_fetcher = NULL;
msg_Dbg( p_playlist, "Deactivated" );
}
......@@ -140,7 +145,7 @@ static int InputEvent( vlc_object_t *p_this, char const *psz_cmd,
playlist_t *p_playlist = p_data;
if( newval.i_int != INPUT_EVENT_STATE &&
newval.i_int != INPUT_EVENT_ES )
newval.i_int != INPUT_EVENT_DEAD )
return VLC_SUCCESS;
PL_LOCK;
......@@ -151,6 +156,14 @@ static int InputEvent( vlc_object_t *p_this, char const *psz_cmd,
return VLC_SUCCESS;
}
static void UpdateActivity( playlist_t *p_playlist, int i_delta )
{
PL_ASSERT_LOCKED;
const int i_activity = var_GetInteger( p_playlist, "activity" ) ;
var_SetInteger( p_playlist, "activity", i_activity + i_delta );
}
/**
* Synchronise the current index of the playlist
* to match the index of the current item.
......@@ -161,53 +174,55 @@ static int InputEvent( vlc_object_t *p_this, char const *psz_cmd,
*/
static void ResyncCurrentIndex( playlist_t *p_playlist, playlist_item_t *p_cur )
{
PL_DEBUG( "resyncing on %s", PLI_NAME( p_cur ) );
/* Simply resync index */
int i;
p_playlist->i_current_index = -1;
for( i = 0 ; i< p_playlist->current.i_size; i++ )
{
if( ARRAY_VAL( p_playlist->current, i ) == p_cur )
{
p_playlist->i_current_index = i;
break;
}
}
PL_DEBUG( "%s is at %i", PLI_NAME( p_cur ), p_playlist->i_current_index );
PL_ASSERT_LOCKED;
PL_DEBUG( "resyncing on %s", PLI_NAME( p_cur ) );
/* Simply resync index */
int i;
p_playlist->i_current_index = -1;
for( i = 0 ; i< p_playlist->current.i_size; i++ )
{
if( ARRAY_VAL( p_playlist->current, i ) == p_cur )
{
p_playlist->i_current_index = i;
break;
}
}
PL_DEBUG( "%s is at %i", PLI_NAME( p_cur ), p_playlist->i_current_index );
}
static void ResetCurrentlyPlaying( playlist_t *p_playlist, bool b_random,
static void ResetCurrentlyPlaying( playlist_t *p_playlist,
playlist_item_t *p_cur )
{
playlist_item_t *p_next = NULL;
playlist_private_t *p_sys = pl_priv(p_playlist);
stats_TimerStart( p_playlist, "Items array build",
STATS_TIMER_PLAYLIST_BUILD );
PL_DEBUG( "rebuilding array of current - root %s",
PLI_NAME( pl_priv(p_playlist)->status.p_node ) );
PLI_NAME( p_sys->status.p_node ) );
ARRAY_RESET( p_playlist->current );
p_playlist->i_current_index = -1;
while( 1 )
for( playlist_item_t *p_next = NULL; ; )
{
/** FIXME: this is *slow* */
p_next = playlist_GetNextLeaf( p_playlist,
pl_priv(p_playlist)->status.p_node,
p_sys->status.p_node,
p_next, true, false );
if( p_next )
{
if( p_next == p_cur )
p_playlist->i_current_index = p_playlist->current.i_size;
ARRAY_APPEND( p_playlist->current, p_next);
}
else break;
if( !p_next )
break;
if( p_next == p_cur )
p_playlist->i_current_index = p_playlist->current.i_size;
ARRAY_APPEND( p_playlist->current, p_next);
}
PL_DEBUG("rebuild done - %i items, index %i", p_playlist->current.i_size,
p_playlist->i_current_index);
if( b_random )
if( var_GetBool( p_playlist, "random" ) )
{
/* Shuffle the array */
srand( (unsigned int)mdate() );
int j;
for( j = p_playlist->current.i_size - 1; j > 0; j-- )
for( int j = p_playlist->current.i_size - 1; j > 0; j-- )
{
int i = rand() % (j+1); /* between 0 and j */
playlist_item_t *p_tmp;
......@@ -217,7 +232,7 @@ static void ResetCurrentlyPlaying( playlist_t *p_playlist, bool b_random,
ARRAY_VAL(p_playlist->current,j) = p_tmp;
}
}
pl_priv(p_playlist)->b_reset_currently_playing = false;
p_sys->b_reset_currently_playing = false;
stats_TimerStop( p_playlist, STATS_TIMER_PLAYLIST_BUILD );
}
......@@ -231,9 +246,8 @@ static void ResetCurrentlyPlaying( playlist_t *p_playlist, bool b_random,
*/
static int PlayItem( playlist_t *p_playlist, playlist_item_t *p_item )
{
playlist_private_t *p_sys = pl_priv(p_playlist);
input_item_t *p_input = p_item->p_input;
sout_instance_t **pp_sout = &pl_priv(p_playlist)->p_sout;
int i_activity = var_GetInteger( p_playlist, "activity" ) ;
PL_ASSERT_LOCKED;
......@@ -242,24 +256,23 @@ static int PlayItem( playlist_t *p_playlist, playlist_item_t *p_item )
p_input->i_nb_played++;
set_current_status_item( p_playlist, p_item );
pl_priv(p_playlist)->status.i_status = PLAYLIST_RUNNING;
p_sys->status.i_status = PLAYLIST_RUNNING;
var_SetInteger( p_playlist, "activity", i_activity +
DEFAULT_INPUT_ACTIVITY );
UpdateActivity( p_playlist, DEFAULT_INPUT_ACTIVITY );
assert( pl_priv(p_playlist)->p_input == NULL );
assert( p_sys->p_input == NULL );
input_thread_t *p_input_thread =
input_CreateThreadExtended( p_playlist, p_input, NULL, *pp_sout );
input_CreateThreadExtended( p_playlist, p_input, NULL, p_sys->p_sout );
if( p_input_thread )
{
pl_priv(p_playlist)->p_input = p_input_thread;
p_sys->p_input = p_input_thread;
var_AddCallback( p_input_thread, "intf-event", InputEvent, p_playlist );
}
*pp_sout = NULL;
p_sys->p_sout = NULL;
char *psz_uri = input_item_GetURI( p_item->p_input );
if( psz_uri && ( !strncmp( psz_uri, "directory:", 10 ) ||
......@@ -307,13 +320,8 @@ static int PlayItem( playlist_t *p_playlist, playlist_item_t *p_item )
*/
static playlist_item_t *NextItem( playlist_t *p_playlist )
{
playlist_private_t *p_sys = pl_priv(p_playlist);
playlist_item_t *p_new = NULL;
int i_skip = 0, i;
bool b_loop = var_GetBool( p_playlist, "loop" );
bool b_random = var_GetBool( p_playlist, "random" );
bool b_repeat = var_GetBool( p_playlist, "repeat" );
bool b_playstop = var_GetBool( p_playlist, "play-and-stop" );
/* Handle quickly a few special cases */
/* No items to play */
......@@ -323,50 +331,22 @@ static playlist_item_t *NextItem( playlist_t *p_playlist )
return NULL;
}
/* Repeat and play/stop */
if( !pl_priv(p_playlist)->request.b_request && b_repeat == true &&
get_current_status_item( p_playlist ) )
{
msg_Dbg( p_playlist,"repeating item" );
return get_current_status_item( p_playlist );
}
if( !pl_priv(p_playlist)->request.b_request && b_playstop == true )
{
msg_Dbg( p_playlist,"stopping (play and stop)" );
return NULL;
}
if( !pl_priv(p_playlist)->request.b_request &&
get_current_status_item( p_playlist ) )
{
playlist_item_t *p_parent = get_current_status_item( p_playlist );
while( p_parent )
{
if( p_parent->i_flags & PLAYLIST_SKIP_FLAG )
{
msg_Dbg( p_playlist, "blocking item, stopping") ;
return NULL;
}
p_parent = p_parent->p_parent;
}
}
/* Start the real work */
if( pl_priv(p_playlist)->request.b_request )
if( p_sys->request.b_request )
{
p_new = pl_priv(p_playlist)->request.p_item;
i_skip = pl_priv(p_playlist)->request.i_skip;
p_new = p_sys->request.p_item;
int i_skip = p_sys->request.i_skip;
PL_DEBUG( "processing request item %s node %s skip %i",
PLI_NAME( pl_priv(p_playlist)->request.p_item ),
PLI_NAME( pl_priv(p_playlist)->request.p_node ), i_skip );
PLI_NAME( p_sys->request.p_item ),
PLI_NAME( p_sys->request.p_node ), i_skip );
if( pl_priv(p_playlist)->request.p_node &&
pl_priv(p_playlist)->request.p_node != get_current_status_node( p_playlist ) )
if( p_sys->request.p_node &&
p_sys->request.p_node != get_current_status_node( p_playlist ) )
{
set_current_status_node( p_playlist, pl_priv(p_playlist)->request.p_node );
pl_priv(p_playlist)->request.p_node = NULL;
pl_priv(p_playlist)->b_reset_currently_playing = true;
set_current_status_node( p_playlist, p_sys->request.p_node );
p_sys->request.p_node = NULL;
p_sys->b_reset_currently_playing = true;
}
/* If we are asked for a node, go to it's first child */
......@@ -376,7 +356,7 @@ static playlist_item_t *NextItem( playlist_t *p_playlist )
if( p_new != NULL )
{
p_new = playlist_GetNextLeaf( p_playlist, p_new, NULL, true, false );
for( i = 0; i < p_playlist->current.i_size; i++ )
for( int i = 0; i < p_playlist->current.i_size; i++ )
{
if( p_new == ARRAY_VAL( p_playlist->current, i ) )
{
......@@ -387,9 +367,9 @@ static playlist_item_t *NextItem( playlist_t *p_playlist )
}
}
if( pl_priv(p_playlist)->b_reset_currently_playing )
if( p_sys->b_reset_currently_playing )
/* A bit too bad to reset twice ... */
ResetCurrentlyPlaying( p_playlist, b_random, p_new );
ResetCurrentlyPlaying( p_playlist, p_new );
else if( p_new )
ResyncCurrentIndex( p_playlist, p_new );
else
......@@ -399,7 +379,7 @@ static playlist_item_t *NextItem( playlist_t *p_playlist )
{
if( p_playlist->i_current_index < -1 )
p_playlist->i_current_index = -1;
for( i = i_skip; i > 0 ; i-- )
for( int i = i_skip; i > 0 ; i-- )
{
p_playlist->i_current_index++;
if( p_playlist->i_current_index >= p_playlist->current.i_size )
......@@ -413,7 +393,7 @@ static playlist_item_t *NextItem( playlist_t *p_playlist )
}
else if( p_playlist->current.i_size && (i_skip < 0) )
{
for( i = i_skip; i < 0 ; i++ )
for( int i = i_skip; i < 0 ; i++ )
{
p_playlist->i_current_index--;
if( p_playlist->i_current_index <= -1 )
......@@ -426,11 +406,42 @@ static playlist_item_t *NextItem( playlist_t *p_playlist )
p_playlist->i_current_index );
}
/* Clear the request */
pl_priv(p_playlist)->request.b_request = false;
p_sys->request.b_request = false;
}
/* "Automatic" item change ( next ) */
else
{
bool b_loop = var_GetBool( p_playlist, "loop" );
bool b_repeat = var_GetBool( p_playlist, "repeat" );
bool b_playstop = var_GetBool( p_playlist, "play-and-stop" );
/* Repeat and play/stop */
if( b_repeat && get_current_status_item( p_playlist ) )
{
msg_Dbg( p_playlist,"repeating item" );
return get_current_status_item( p_playlist );
}
if( b_playstop )
{
msg_Dbg( p_playlist,"stopping (play and stop)" );
return NULL;
}
/* */
if( get_current_status_item( p_playlist ) )
{
playlist_item_t *p_parent = get_current_status_item( p_playlist );
while( p_parent )
{
if( p_parent->i_flags & PLAYLIST_SKIP_FLAG )
{
msg_Dbg( p_playlist, "blocking item, stopping") ;
return NULL;
}
p_parent = p_parent->p_parent;
}
}
PL_DEBUG( "changing item without a request (current %i/%i)",
p_playlist->i_current_index, p_playlist->current.i_size );
/* Cant go to next from current item */
......@@ -438,19 +449,21 @@ static playlist_item_t *NextItem( playlist_t *p_playlist )
get_current_status_item( p_playlist )->i_flags & PLAYLIST_SKIP_FLAG )
return NULL;
if( pl_priv(p_playlist)->b_reset_currently_playing )
ResetCurrentlyPlaying( p_playlist, b_random,
if( p_sys->b_reset_currently_playing )
ResetCurrentlyPlaying( p_playlist,
get_current_status_item( p_playlist ) );
p_playlist->i_current_index++;
assert( p_playlist->i_current_index <= p_playlist->current.i_size );
if( p_playlist->i_current_index == p_playlist->current.i_size )
{
if( !b_loop || p_playlist->current.i_size == 0 ) return NULL;
if( !b_loop || p_playlist->current.i_size == 0 )
return NULL;
p_playlist->i_current_index = 0;
}
PL_DEBUG( "using item %i", p_playlist->i_current_index );
if ( p_playlist->current.i_size == 0 ) return NULL;
if ( p_playlist->current.i_size == 0 )
return NULL;
p_new = ARRAY_VAL( p_playlist->current, p_playlist->i_current_index );
/* The new item can't be autoselected */
......@@ -460,120 +473,95 @@ static playlist_item_t *NextItem( playlist_t *p_playlist )
return p_new;
}
/**
* Main loop
*
* Main loop for the playlist. It should be entered with the
* playlist lock (otherwise input event may be lost)
* \param p_playlist the playlist object
* \return nothing
*/
static void Loop( playlist_t *p_playlist )
static int LoopInput( playlist_t *p_playlist )
{
bool b_playexit = var_GetBool( p_playlist, "play-and-exit" );
playlist_private_t *p_sys = pl_priv(p_playlist);
input_thread_t *p_input = p_sys->p_input;
PL_ASSERT_LOCKED;
if( !p_input )
return VLC_EGENERIC;
if( pl_priv(p_playlist)->b_reset_currently_playing &&
mdate() - pl_priv(p_playlist)->last_rebuild_date > 30000 ) // 30 ms
if( ( p_sys->request.b_request || !vlc_object_alive( p_playlist ) ) && !p_input->b_die )
{
ResetCurrentlyPlaying( p_playlist, var_GetBool( p_playlist, "random" ),
get_current_status_item( p_playlist ) );
pl_priv(p_playlist)->last_rebuild_date = mdate();
PL_DEBUG( "incoming request - stopping current input" );
input_StopThread( p_input );
}
check_input:
/* If there is an input, check that it doesn't need to die. */
if( pl_priv(p_playlist)->p_input )
/* This input is dead. Remove it ! */
if( p_input->b_dead )
{
input_thread_t *p_input = pl_priv(p_playlist)->p_input;
PL_DEBUG( "dead input" );
if( pl_priv(p_playlist)->request.b_request && !p_input->b_die )
{
PL_DEBUG( "incoming request - stopping current input" );
input_StopThread( p_input );
}
assert( p_sys->p_sout == NULL );
if( var_CreateGetBool( p_input, "sout-keep" ) )
p_sys->p_sout = input_DetachSout( p_input );
/* This input is dead. Remove it ! */
if( p_input->b_dead )
{
sout_instance_t **pp_sout = &pl_priv(p_playlist)->p_sout;
/* The DelCallback must be issued without playlist lock
* It is not a problem as we return VLC_EGENERIC */
PL_UNLOCK;
var_DelCallback( p_input, "intf-event", InputEvent, p_playlist );
PL_LOCK;
PL_DEBUG( "dead input" );
p_sys->p_input = NULL;
vlc_thread_join( p_input );
vlc_object_release( p_input );
assert( *pp_sout == NULL );
if( var_CreateGetBool( p_input, "sout-keep" ) )
*pp_sout = input_DetachSout( p_input );
UpdateActivity( p_playlist, -DEFAULT_INPUT_ACTIVITY );
/* Destroy input */
var_DelCallback( p_input, "intf-event", InputEvent, p_playlist );
pl_priv(p_playlist)->p_input = NULL;
return VLC_EGENERIC;
}
/* This input is dying, let it do */
else if( p_input->b_die )
{
PL_DEBUG( "dying input" );
}
/* This input has finished, ask it to die ! */
else if( p_input->b_error || p_input->b_eof )
{
PL_DEBUG( "finished input" );
input_StopThread( p_input );
}
return VLC_SUCCESS;
}
/* Release the playlist lock, because we may get stuck
* in vlc_object_release() for some time. */
PL_UNLOCK;
vlc_thread_join( p_input );
vlc_object_release( p_input );
PL_LOCK;
static void LoopRequest( playlist_t *p_playlist )
{
playlist_private_t *p_sys = pl_priv(p_playlist);
assert( !p_sys->p_input );
int i_activity= var_GetInteger( p_playlist, "activity" );
var_SetInteger( p_playlist, "activity",
i_activity - DEFAULT_INPUT_ACTIVITY );
goto check_input;
}
/* This input is dying, let it do */
else if( p_input->b_die )
{
PL_DEBUG( "dying input" );
PL_UNLOCK;
msleep( INTF_IDLE_SLEEP );
PL_LOCK;
goto check_input;
}
/* This input has finished, ask it to die ! */
else if( p_input->b_error || p_input->b_eof )
{
PL_DEBUG( "finished input" );
input_StopThread( p_input );
/* No need to wait here, we'll wait in the p_input->b_die case */
goto check_input;
}
/* No input. Several cases
* - No request, running status -> start new item
* - No request, stopped status -> collect garbage
* - Request, running requested -> start new item
* - Request, stopped requested -> collect garbage
*/
const int i_status = p_sys->request.b_request ?
p_sys->request.i_status : p_sys->status.i_status;
if( i_status == PLAYLIST_STOPPED )
{
p_sys->status.i_status = PLAYLIST_STOPPED;
if( vlc_object_alive( p_playlist ) )
vlc_object_wait( p_playlist );
return;
}
else
playlist_item_t *p_item = NextItem( p_playlist );
if( p_item )
{
/* No input. Several cases
* - No request, running status -> start new item
* - No request, stopped status -> collect garbage
* - Request, running requested -> start new item
* - Request, stopped requested -> collect garbage
*/
int i_status = pl_priv(p_playlist)->request.b_request ?
pl_priv(p_playlist)->request.i_status : pl_priv(p_playlist)->status.i_status;
if( i_status != PLAYLIST_STOPPED )
{
msg_Dbg( p_playlist, "starting new item" );
playlist_item_t *p_item = NextItem( p_playlist );
msg_Dbg( p_playlist, "starting new item" );
PlayItem( p_playlist, p_item );
return;
}
if( p_item == NULL )
{
msg_Dbg( p_playlist, "nothing to play" );
pl_priv(p_playlist)->status.i_status = PLAYLIST_STOPPED;
msg_Dbg( p_playlist, "nothing to play" );
p_sys->status.i_status = PLAYLIST_STOPPED;
if( b_playexit == true )
{
msg_Info( p_playlist, "end of playlist, exiting" );
vlc_object_kill( p_playlist->p_libvlc );
}
return;
}
PlayItem( p_playlist, p_item );
/* PlayItem loose input event, we need to recheck */
goto check_input;
}
else
{
pl_priv(p_playlist)->status.i_status = PLAYLIST_STOPPED;
}
if( var_GetBool( p_playlist, "play-and-exit" ) )
{
msg_Info( p_playlist, "end of playlist, exiting" );
vlc_object_kill( p_playlist->p_libvlc );
}
}
......@@ -583,15 +571,26 @@ check_input:
static void *Thread ( vlc_object_t *p_this )
{
playlist_t *p_playlist = (playlist_t*)p_this;
playlist_private_t *p_sys = pl_priv(p_playlist);
int canc = vlc_savecancel();
vlc_object_lock( p_playlist );
while( vlc_object_alive( p_playlist ) || pl_priv(p_playlist)->p_input )
while( vlc_object_alive( p_playlist ) || p_sys->p_input )
{
Loop( p_playlist );
/* FIXME: what's that ! */
if( p_sys->b_reset_currently_playing &&
mdate() - p_sys->last_rebuild_date > 30000 ) // 30 ms
{
ResetCurrentlyPlaying( p_playlist,
get_current_status_item( p_playlist ) );
p_sys->last_rebuild_date = mdate();
}
if( vlc_object_alive( p_playlist ) )
/* If there is an input, check that it doesn't need to die. */
while( !LoopInput( p_playlist ) )
vlc_object_wait( p_playlist );
LoopRequest( p_playlist );
}
vlc_object_unlock( p_playlist );
......
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