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Mixer: Fix crash when closing project containing certain configurations of modules.

This commit is contained in:
Jonathan Moore Liles 2020-12-02 20:13:44 -08:00
parent 97d12322f5
commit 0106604073
10 changed files with 114 additions and 53 deletions
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21
mixer/src/Chain.C
View File

@ -174,7 +174,9 @@ Chain::~Chain ( )
_deleting = true;
client()->lock();
/* FIXME: client may already be dead during teardown if group is destroyed first. */
if ( client() )
client()->lock();
for ( unsigned int i = scratch_port.size(); i--; )
free( (sample_t*)scratch_port[i].buffer() );
@ -182,9 +184,12 @@ Chain::~Chain ( )
/* if we leave this up to FLTK, it will happen after we've
already destroyed the client */
modules_pack->clear();
modules_pack = NULL;
controls_pack->clear();
modules_pack = NULL;
client()->unlock();
if ( client() )
client()->unlock();
}
Group *
@ -534,6 +539,8 @@ Chain::name ( const char *name )
if ( strip()->group() )
{
if ( strip()->group()->single() )
/* we are the owner of this group and its only member, so
* rename it */
strip()->group()->name(name);
}
@ -713,6 +720,8 @@ Chain::add_to_process_queue ( Module *m )
void
Chain::build_process_queue ( void )
{
client()->lock();
process_queue.clear();
for ( int i = 0; i < modules(); ++i )
@ -780,6 +789,8 @@ Chain::build_process_queue ( void )
/* delete[] s; */
/* } */
/* } */
client()->unlock();
}
void
@ -901,9 +912,9 @@ Chain::process ( nframes_t nframes )
{
for ( std::list<Module*>::const_iterator i = process_queue.begin(); i != process_queue.end(); ++i )
{
Module *m = *i;
m->process( nframes );
Module *m = *i;
m->process( nframes );
}
}

2
mixer/src/Chain.H
View File

@ -109,7 +109,7 @@ public:
bool can_support_input_channels ( int n );
int modules ( void ) const { return modules_pack->children(); }
int modules ( void ) const { return modules_pack ? modules_pack->children() : 0; }
Module *module ( int n ) const { return (Module*)modules_pack->child( n ); }
void remove ( Controller_Module *m );
void remove ( Module *m );

2
mixer/src/Controller_Module.C
View File

@ -96,8 +96,6 @@ Controller_Module::~Controller_Module ( )
/* shutdown JACK port, if we have one */
mode( GUI );
// disconnect();
}
void

37
mixer/src/Group.C
View File

@ -56,9 +56,18 @@ Group::~Group ( )
{
DMESSAGE( "Destroying group" );
for ( std::list<Mixer_Strip*>::iterator i = strips.begin();
i != strips.end();
i++ )
{
/* avoid a use after free during project close when the group
* may be destroyed before its member strips are */
(*i)->clear_group();
}
if ( _name )
free( _name );
deactivate();
}
@ -101,12 +110,16 @@ Group::set ( Log_Entry &e )
void
Group::latency ( jack_latency_callback_mode_t mode )
{
for ( std::list<Mixer_Strip*>::iterator i = strips.begin();
i != strips.end();
i++ )
if ( trylock() )
{
if ( (*i)->chain() )
(*i)->chain()->set_latency(mode == JackCaptureLatency ? JACK::Port::Input : JACK::Port::Output );
for ( std::list<Mixer_Strip*>::iterator i = strips.begin();
i != strips.end();
i++ )
{
if ( (*i)->chain() )
(*i)->chain()->set_latency(mode == JackCaptureLatency ? JACK::Port::Input : JACK::Port::Output );
}
unlock();
}
}
@ -208,8 +221,9 @@ Group::process ( nframes_t nframes )
void
Group::recal_load_coef ( void )
{
_load_coef = 1.0f / ( nframes() / (float)sample_rate() * 1000000.0 );
_load_coef = 1.0f / ( nframes() / (float)sample_rate() * 1000000.0f );
}
int
Group::sample_rate_changed ( nframes_t srate )
{
@ -273,6 +287,7 @@ void
Group::add ( Mixer_Strip *o )
{
lock();
if ( ! active() )
{
/* to call init */
@ -280,10 +295,12 @@ Group::add ( Mixer_Strip *o )
name(n);
free(n);
}
if ( o->chain() )
o->chain()->thaw_ports();
strips.push_back(o);
unlock();
}
@ -291,13 +308,15 @@ void
Group::remove ( Mixer_Strip *o )
{
lock();
strips.remove(o);
if ( o->chain() )
o->chain()->freeze_ports();
if ( strips.size() == 0 && active() )
{
Client::close();
}
unlock();
}

2
mixer/src/Group.H
View File

@ -97,6 +97,8 @@ public:
void add (Mixer_Strip*);
void remove (Mixer_Strip*);
int children ( void ) const { return strips.size(); }
/* Engine *engine ( void ) { return _engine; } */
};

2
mixer/src/Mixer.C
View File

@ -821,8 +821,6 @@ void Mixer::remove ( Mixer_Strip *ms )
mixer_strips->remove( ms );
ms->group()->remove( ms );
if ( parent() )
parent()->redraw();
}

24
mixer/src/Mixer_Strip.C
View File

@ -73,6 +73,7 @@ Mixer_Strip::Mixer_Strip( const char *strip_name ) : Fl_Group( 0, 0, 120, 600 )
init();
/* create single member group */
_group = new Group(strip_name, true);
_group->add( this );
@ -105,14 +106,30 @@ Mixer_Strip::~Mixer_Strip ( )
// _chain->engine()->lock();
log_destroy();
mixer->remove( this );
/* make sure this gets destroyed before the chain */
fader_tab->clear();
delete _chain;
_chain = NULL;
if ( _group )
{
_group->remove( this );
}
if ( _chain )
{
delete _chain;
_chain = NULL;
}
if ( _group )
{
if ( 0 == _group->children() )
delete _group;
_group = NULL;
}
}
@ -347,6 +364,7 @@ void Mixer_Strip::cb_handle(Fl_Widget* o, void* v) {
void
Mixer_Strip::group ( Group *g )
{
/* FIXME: what is the intention here? */
if ( !g && _group && _group->single() )
return;

3
mixer/src/Mixer_Strip.H
View File

@ -169,7 +169,8 @@ public:
Controller_Module *spatializer ( void );
Group *group ( void ) { return _group;}
Group *group ( void ) { return _group; }
void clear_group ( void ) { _group = NULL; }
// int group ( void ) const;
void group ( Group * );

53
mixer/src/Module.C
View File

@ -104,27 +104,36 @@ Module::~Module ( )
if ( control_input[i].connected() )
{
Module *o = (Module*)control_input[i].connected_port()->module();
if ( ! o->is_default() )
{
control_input[i].disconnect();
DMESSAGE( "Deleting connected module %s", o->label() );
delete o;
}
else
{
control_input[i].disconnect();
}
}
if ( !o )
{
DWARNING( "Programming error. Connected port has null module. %s %s",
label(),
control_input[i].connected_port()->name());
}
control_input[i].disconnect();
if ( o )
{
if ( ! o->is_default() )
{
DMESSAGE( "Deleting connected module %s", o->label() );
delete o;
}
}
}
control_input[i].destroy_osc_port();
}
for ( unsigned int i = 0; i < control_output.size(); ++i )
control_output[i].disconnect();
aux_audio_output.clear();
aux_audio_input.clear();
audio_input.clear();
audio_output.clear();
@ -1180,7 +1189,19 @@ Module::freeze_ports ( void )
for ( int i = 0; i < ncontrol_inputs(); ++i )
{
if ( control_input[i].connected() )
control_input[i].connected_port()->module()->freeze_ports();
{
if ( ! control_input[i].connected_port()->module() )
{
DWARNING( "Programming error. Connected port has null module. %s %s",
name(),
control_input[i].connected_port()->name());
}
else
{
control_input[i].connected_port()->module()->freeze_ports();
}
}
}
for ( unsigned int i = 0; i < aux_audio_input.size(); ++i )

21
mixer/src/Module.H
View File

@ -173,6 +173,9 @@ public:
virtual ~Port ( )
{
/* FIXME: will this cause problems with cloning an instance? */
disconnect();
if ( _by_number_path )
free( _by_number_path );
_by_number_path = NULL;
@ -321,20 +324,10 @@ public:
/* disconnect from *all* connected ports */
void disconnect ( void )
{
if ( _connected.size() )
{
for ( std::list<Port*>::iterator i = _connected.begin(); i != _connected.end(); i++ )
{
Port *p = *i;
/* iterator about to be invalidated... */
i = _connected.erase(i);
disconnect(p);
}
}
}
while ( _connected.size() )
disconnect(_connected.front());
}
void jack_port ( JACK::Port *v ) { _jack_port = v; }
JACK::Port *jack_port ( void ) const { return _jack_port; }