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Timeline: Rework locking.

This commit is contained in:
Jonathan Moore Liles 2013-02-22 17:18:52 -08:00
parent a228920ac1
commit 98c5c196d4
14 changed files with 141 additions and 122 deletions
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2
timeline/src/Audio_Region.C
View File

@ -477,6 +477,8 @@ Audio_Region::draw_box( void )
void
Audio_Region::peaks_ready_callback ( void *v )
{
/* this is called from the peak builder thread */
DMESSAGE("Damaging region from peaks ready callback");
Fl::lock();
((Audio_Region*)v)->redraw();

10
timeline/src/Control_Sequence.C
View File

@ -85,12 +85,8 @@ Control_Sequence::~Control_Sequence ( )
log_destroy();
engine->lock();
track()->remove( this );
engine->unlock();
if ( _output )
{
_output->shutdown();
@ -144,8 +140,6 @@ Control_Sequence::name ( const char *s )
void
Control_Sequence::update_port_name ( void )
{
engine->lock();
bool needs_activation = false;
if ( ! _output )
{
@ -170,8 +164,6 @@ Control_Sequence::update_port_name ( void )
_output = NULL;
}
}
engine->unlock();
}
void
@ -769,7 +761,7 @@ Control_Sequence::handle ( int m )
add( r );
timeline->unlock();
timeline->unlock();
return 1;
}

19
timeline/src/Engine/Disk_Stream.C
View File

@ -73,7 +73,8 @@ Disk_Stream::Disk_Stream ( Track *track, float frame_rate, nframes_t nframes, in
Disk_Stream::~Disk_Stream ( )
{
/* it isn't safe to do all this with the RT thread running */
engine->lock();
timeline->wrlock();
shutdown();
@ -84,7 +85,7 @@ Disk_Stream::~Disk_Stream ( )
for ( int i = channels(); i--; )
jack_ringbuffer_free( _rb[ i ] );
engine->unlock();
timeline->unlock();
}
@ -146,23 +147,13 @@ Disk_Stream::shutdown ( void )
_terminate = true;
/* try to wake the thread so it'll see that it's time to die */
int total_ms = 0;
while ( _terminate )
{
usleep( 1000 * 10 );
total_ms += 10;
usleep( 100 );
block_processed();
if ( total_ms > 100 )
{
WARNING("Disk_Stream thread has taken longer than %ims to respond to terminate signal. Canceling", total_ms );
_thread.cancel();
break;
}
}
if ( ! _terminate )
_thread.join();
_thread.join();
sem_destroy( &_blocks );

18
timeline/src/Engine/Engine.C
View File

@ -168,7 +168,11 @@ Engine::process ( nframes_t nframes )
}
else
{
if ( ! trylock() )
if ( !timeline)
/* handle chicken/egg problem */
return 0;
if ( timeline->tryrdlock() )
{
/* the data structures we need to access here (tracks and
* their ports, but not track contents) may be in an
@ -178,14 +182,12 @@ Engine::process ( nframes_t nframes )
return 0;
}
/* handle chicken/egg problem */
if ( timeline )
/* this will initiate the process() call graph for the various
* number and types of tracks, which will in turn send data out
* the appropriate ports. */
timeline->process( nframes );
/* this will initiate the process() call graph for the various
* number and types of tracks, which will in turn send data out
* the appropriate ports. */
timeline->process( nframes );
unlock();
timeline->unlock();
}
return 0;

2
timeline/src/Engine/Engine.H
View File

@ -27,7 +27,7 @@ class Port;
#include "Thread.H"
class Engine : public JACK::Client, public Mutex
class Engine : public JACK::Client
{
Thread _thread; /* only used for thread checking */

46
timeline/src/Engine/Playback_DS.C
View File

@ -33,6 +33,7 @@
#include "const.h"
#include "debug.h"
#include "Thread.H"
#include <unistd.h>
bool
Playback_DS::seek_pending ( void )
@ -76,29 +77,36 @@ Playback_DS::read_block ( sample_t *buf, nframes_t nframes )
memset( buf, 0, nframes * sizeof( sample_t ) * channels() );
/* stupid chicken/egg */
if ( ! timeline )
return;
// printf( "IO: attempting to read block @ %lu\n", _frame );
timeline->rdlock();
if ( !timeline )
return;
if ( sequence() )
while ( ! _terminate )
{
/* FIXME: how does this work if _delay is not a multiple of bufsize? */
if ( _frame >= _delay )
if ( ! timeline->tryrdlock() )
{
if ( ! sequence()->play( buf, _frame - _delay, nframes, channels() ) )
WARNING( "Programming error?" );
if ( sequence() )
{
/* FIXME: how does this work if _delay is not a multiple of bufsize? */
if ( _frame >= _delay )
{
if ( ! sequence()->play( buf, _frame - _delay, nframes, channels() ) )
WARNING( "Programming error?" );
}
_frame += nframes;
}
timeline->unlock();
return;
}
_frame += nframes;
usleep( 1000 * 10 );
}
timeline->unlock();
}
#define AVOID_UNNECESSARY_COPYING 1
@ -146,6 +154,10 @@ Playback_DS::disk_thread ( void )
read_block( buf, nframes );
/* might have received terminate signal while waiting for block */
if ( _terminate )
goto done;
// unlock(); // for seeking
/* deinterleave the buffer and stuff it into the per-channel ringbuffers */
@ -201,6 +213,8 @@ Playback_DS::disk_thread ( void )
}
done:
DMESSAGE( "playback thread terminating" );
delete[] buf;
@ -209,6 +223,8 @@ Playback_DS::disk_thread ( void )
#endif
_terminate = false;
_thread.exit();
}
/** take a single block from the ringbuffers and send it out the

5
timeline/src/Engine/Track.C
View File

@ -72,7 +72,7 @@ Track::configure_outputs ( int n )
if ( n == on )
return true;
// engine->lock();
DMESSAGE( "Reconfiguring outputs for track %s", name() );
if ( playback_ds )
{
@ -111,7 +111,6 @@ Track::configure_outputs ( int n )
if ( output.size() )
playback_ds = new Playback_DS( this, engine->frame_rate(), engine->nframes(), output.size() );
// engine->unlock();
/* FIXME: bogus */
return true;
}
@ -124,6 +123,8 @@ Track::configure_inputs ( int n )
if ( n == on )
return true;
DMESSAGE( "Reconfiguring inputs for track %s", name() );
// engine->lock();
if ( record_ds )

4
timeline/src/Project.C
View File

@ -204,7 +204,9 @@ Project::close ( void )
return false;
timeline->wrlock();
Loggable::close();
timeline->unlock();
// write_info();
@ -311,13 +313,11 @@ Project::open ( const char *name )
if ( ! engine )
make_engine();
timeline->wrlock();
{
Block_Timer timer( "Replayed journal" );
if ( ! Loggable::open( "history" ) )
return E_INVALID;
}
timeline->unlock();
/* /\* really a good idea? *\/ */
/* timeline->sample_rate( rate ); */

15
timeline/src/Sequence.C
View File

@ -76,14 +76,14 @@ Sequence::~Sequence ( )
{
DMESSAGE( "destroying sequence" );
if ( _name )
free( _name );
if ( _widgets.size() )
FATAL( "programming error: leaf destructor must call Sequence::clear()!" );
if ( parent() )
parent()->remove( this );
if ( _name )
free( _name );
}
@ -155,10 +155,10 @@ void
Sequence::handle_widget_change ( nframes_t start, nframes_t length )
{
/* this might be invoked from Capture or GUI thread */
Fl::lock();
// Fl::lock();
sort();
timeline->damage_sequence();
Fl::unlock();
// Fl::unlock();
// timeline->update_length( start + length );
}
@ -211,7 +211,6 @@ Sequence::remove ( Sequence_Widget *r )
_widgets.remove( r );
handle_widget_change( r->start(), r->length() );
}
static nframes_t
@ -400,9 +399,7 @@ Sequence::handle ( int m )
/* accept objects dragged from other sequences of this type */
timeline->wrlock();
add( Sequence_Widget::pushed() );
timeline->unlock();
damage( FL_DAMAGE_USER1 );
@ -487,7 +484,6 @@ Sequence::handle ( int m )
Loggable::block_start();
timeline->wrlock();
while ( _delete_queue.size() )
{
@ -504,7 +500,6 @@ Sequence::handle ( int m )
delete t;
}
timeline->unlock();
Loggable::block_end();

6
timeline/src/Sequence_Widget.C
View File

@ -168,7 +168,7 @@ Sequence_Widget::begin_drag ( const Drag &d )
{
_drag = new Drag( d );
timeline->rdlock();
timeline->wrlock();
/* copy current values */
@ -400,9 +400,7 @@ Sequence_Widget::handle ( int m )
/* deletion */
if ( test_press( FL_BUTTON3 + FL_CTRL ) )
{
timeline->wrlock();
remove();
timeline->unlock();
return 1;
}
@ -444,7 +442,9 @@ Sequence_Widget::handle ( int m )
if ( test_press( FL_BUTTON1 + FL_CTRL ) && ! _drag->state )
{
/* duplication */
timeline->wrlock();
sequence()->add( this->clone() );
timeline->unlock();
_drag->state = 1;
return 1;

69
timeline/src/Timeline.C
View File

@ -41,7 +41,6 @@
#include "Annotation_Sequence.H"
#include "Track.H"
#include "Transport.H"
#include "Engine/Engine.H" // for lock()
#include "FL/menu_popup.H"
@ -362,6 +361,10 @@ Timeline::range ( nframes_t start, nframes_t length )
void
Timeline::add_take_for_armed_tracks ( void )
{
THREAD_ASSERT( UI );
wrlock();
for ( int i = tracks->children(); i-- ; )
{
Track *t = (Track*)tracks->child( i );
@ -369,6 +372,8 @@ Timeline::add_take_for_armed_tracks ( void )
if ( t->armed() && t->sequence()->_widgets.size() )
t->sequence( new Audio_Sequence( t ) );
}
unlock();
}
void
@ -938,10 +943,12 @@ Timeline::draw_measure_cb ( nframes_t frame, const BBT &bbt, void *v )
return;
if ( bbt.beat )
{
if ( o->panzoomer->zoom() > 12 )
return;
else
c = FL_DARK1;
}
fl_color( fl_color_add_alpha( c, 64 ) );
@ -1246,6 +1253,8 @@ Timeline::draw_cursors ( void ) const
void
Timeline::draw ( void )
{
THREAD_ASSERT( UI );
int X, Y, W, H;
int bdx = 0;
@ -1869,14 +1878,10 @@ Timeline::add_track ( Track *track )
{
DMESSAGE( "added new track to the timeline" );
engine->lock();
tracks->add( track );
// update_track_order();
engine->unlock();
/* FIXME: why is this necessary? doesn't the above add do DAMAGE_CHILD? */
redraw();
@ -1888,16 +1893,12 @@ Timeline::insert_track ( Track *track, int n )
if ( n > tracks->children() || n < 0 )
return;
engine->lock();
tracks->insert( *track, n );
update_track_order();
tracks->redraw();
engine->unlock();
/* FIXME: why is this necessary? doesn't the above add do DAMAGE_CHILD? */
// redraw();
}
@ -1912,7 +1913,7 @@ compare_tracks ( Track *a, Track *b )
void
Timeline::apply_track_order ( void )
{
engine->lock();
/* wrlock(); */
std::list<Track*> tl;
@ -1931,7 +1932,7 @@ Timeline::apply_track_order ( void )
update_track_order();
engine->unlock();
/* unlock(); */
}
void
@ -1947,17 +1948,6 @@ Timeline::find_track ( const Track *track ) const
return tracks->find( *track );
}
void
Timeline::move_track_up ( Track *track )
{
insert_track( track, find_track( track ) - 1 );
}
void
Timeline::move_track_down ( Track *track )
{
insert_track( track, find_track( track ) + 2 );
}
/** remove /track/ from the timeline */
void
@ -1965,15 +1955,11 @@ Timeline::remove_track ( Track *track )
{
DMESSAGE( "removed track from the timeline" );
engine->lock();
/* FIXME: what to do about track contents? */
tracks->remove( track );
update_track_order();
engine->unlock();
/* FIXME: why is this necessary? doesn't the above add do DAMAGE_CHILD? */
redraw();
}
@ -1982,6 +1968,30 @@ Timeline::remove_track ( Track *track )
/* Commands */
/************/
void
Timeline::command_move_track_up ( Track *track )
{
wrlock();
insert_track( track, find_track( track ) - 1 );
unlock();
}
void
Timeline::command_move_track_down ( Track *track )
{
wrlock();
insert_track( track, find_track( track ) + 2 );
unlock();
}
void
Timeline::command_remove_track ( Track *track )
{
wrlock();
remove_track(track);
unlock();
}
void
Timeline::command_quit ( )
{
@ -1998,7 +2008,9 @@ Timeline::command_load ( const char *name, const char *display_name )
if ( ! name )
return false;
wrlock();
int r = Project::open( name );
unlock();
if ( r < 0 )
{
@ -2145,7 +2157,7 @@ Timeline::handle_peer_scan_complete ( void *o )
void
Timeline::connect_osc ( void )
{
wrlock();
// rdlock();
/* try to (re)connect OSC signals */
for ( int i = tracks->children(); i-- ; )
@ -2155,7 +2167,7 @@ Timeline::connect_osc ( void )
t->connect_osc();
}
unlock();
// unlock();
}
void
@ -2183,7 +2195,6 @@ Timeline::process_osc ( void )
{
THREAD_ASSERT( OSC );
/* FIXME: is holding this lock a problem for recording? */
rdlock();
/* reconnect OSC signals */

8
timeline/src/Timeline.H
View File

@ -57,6 +57,8 @@ class Cursor_Point;
class Fl_Panzoomer;
class Fl_Tile;
#include "RWLock.H"
namespace OSC { class Endpoint; }
#define USE_WIDGET_FOR_TIMELINE
@ -83,7 +85,6 @@ struct Rectangle
Rectangle ( int X, int Y, int W, int H ) : x( X ), y( Y ), w( W ), h( H ) {}
};
#include "RWLock.H"
#ifdef USE_WIDGET_FOR_TIMELINE
class Timeline : public Fl_Group, public RWLock
@ -252,9 +253,10 @@ public:
void add_track ( Track *track );
void remove_track ( Track *track );
void command_remove_track ( Track *track );
void move_track_up ( Track *track );
void move_track_down ( Track *track );
void command_move_track_up ( Track *track );
void command_move_track_down ( Track *track );
int find_track ( const Track * track ) const;

50
timeline/src/Track.C
View File

@ -36,8 +36,6 @@
#include "FL/Fl_Scalepack.H"
#include "FL/Fl_Blink_Button.H"
#include "Engine/Engine.H" // for lock()
#include "Control_Sequence.H"
#include "Annotation_Sequence.H"
@ -639,12 +637,8 @@ Track::remove ( Control_Sequence *t )
if ( ! control )
return;
engine->lock();
control->remove( t );
engine->unlock();
adjust_size();
}
@ -681,8 +675,6 @@ Track::add ( Control_Sequence *t )
{
DMESSAGE( "adding control sequence" );
engine->lock();
t->track( this );
t->color( random_color() );
@ -690,8 +682,6 @@ Track::add ( Control_Sequence *t )
// control->insert( *t, 0 );
control->add( t );
engine->unlock();
adjust_size();
}
@ -741,6 +731,16 @@ Track::menu_cb ( Fl_Widget *w, void *v )
((Track*)v)->menu_cb( (Fl_Menu_*) w );
}
void
Track::command_configure_channels ( int n )
{
/* due to locking this should only be invoked by direct user action */
timeline->wrlock();
configure_inputs( n );
configure_outputs( n );
timeline->unlock();
}
void
Track::menu_cb ( const Fl_Menu_ *m )
{
@ -754,18 +754,15 @@ Track::menu_cb ( const Fl_Menu_ *m )
if ( ! strcmp( picked, "Type/Mono" ) )
{
configure_inputs( 1 );
configure_outputs( 1 );
command_configure_channels( 1 );
}
else if ( ! strcmp( picked, "Type/Stereo" ) )
{
configure_inputs( 2 );
configure_outputs( 2 );
command_configure_channels( 2 );
}
else if ( ! strcmp( picked, "Type/Quad" ) )
{
configure_inputs( 4 );
configure_outputs( 4 );
command_configure_channels( 4 );
}
else if ( ! strcmp( picked, "Type/..." ) )
{
@ -779,8 +776,7 @@ Track::menu_cb ( const Fl_Menu_ *m )
fl_alert( "Invalid number of channels." );
else
{
configure_inputs( c );
configure_outputs( c );
command_configure_channels(c);
}
}
}
@ -789,7 +785,9 @@ Track::menu_cb ( const Fl_Menu_ *m )
/* add audio track */
char *name = get_unique_control_name( "Control" );
timeline->wrlock();
new Control_Sequence( this, name );
timeline->unlock();
}
else if ( ! strcmp( picked, "/Overlay controls" ) )
{
@ -846,8 +844,8 @@ Track::menu_cb ( const Fl_Menu_ *m )
if ( r == 2 )
{
timeline->remove_track( this );
Fl::delete_widget( this );
timeline->command_remove_track( this );
Fl::delete_widget( this );
}
}
else if ( ! strcmp( picked, "/Rename" ) )
@ -856,11 +854,11 @@ Track::menu_cb ( const Fl_Menu_ *m )
}
else if ( ! strcmp( picked, "/Move Up" ) )
{
timeline->move_track_up( this );
timeline->command_move_track_up( this );
}
else if ( ! strcmp( picked, "/Move Down" ) )
{
timeline->move_track_down( this );
timeline->command_move_track_down( this );
}
else if ( !strcmp( picked, "Takes/Show all takes" ) )
{
@ -868,7 +866,9 @@ Track::menu_cb ( const Fl_Menu_ *m )
}
else if ( !strcmp( picked, "Takes/New" ) )
{
timeline->wrlock();
sequence( (Audio_Sequence*)sequence()->clone_empty() );
timeline->unlock();
}
else if ( !strcmp( picked, "Takes/Remove" ) )
{
@ -876,12 +876,16 @@ Track::menu_cb ( const Fl_Menu_ *m )
{
Loggable::block_start();
timeline->wrlock();
Audio_Sequence *s = sequence();
sequence( (Audio_Sequence*)takes->child( 0 ) );
delete s;
timeline->unlock();
Loggable::block_end();
}
}
@ -900,7 +904,9 @@ Track::menu_cb ( const Fl_Menu_ *m )
{
Audio_Sequence* s = (Audio_Sequence*)m->mvalue()->user_data();
timeline->wrlock();
sequence( s );
timeline->unlock();
}
}

1
timeline/src/Track.H
View File

@ -111,6 +111,7 @@ private:
bool configure_outputs ( int n );
bool configure_inputs ( int n );
void command_configure_channels ( int n );
void update_port_names ( void );
const char *name_for_port( JACK::Port::type_e type, int n );