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Remove chicken/egg d'tor

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Session::Controllables is a shared_ptr<> list. As long
as the session exists the Controllables will be around. Destroyed(*)
can only be called after the session is destroyed and releases the
shared_ptr<>

NB. this code had a nice hack to construct a "shared_from_this"
workaround. For future reference:

struct null_deleter { void operator()(void const *) const {} };
boost::shared_ptr<Controllable>(c, null_deleter())
This commit is contained in:
Robin Gareus 2019-03-23 14:28:12 +01:00
parent 73029d45ba
commit ff8bd935cf
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2 changed files with 0 additions and 20 deletions
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1
libs/ardour/ardour/session.h
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@ -1079,7 +1079,6 @@ public:
boost::shared_ptr<AutomationControl> automation_control_by_id (const PBD::ID&);
void add_controllable (boost::shared_ptr<PBD::Controllable>);
void remove_controllable (PBD::Controllable*);
boost::shared_ptr<PBD::Controllable> solo_cut_control() const;

19
libs/ardour/session_state.cc
View file

@ -208,7 +208,6 @@ Session::pre_engine_init (string fullpath)
SourceFactory::SourceCreated.connect_same_thread (*this, boost::bind (&Session::add_source, this, _1));
PlaylistFactory::PlaylistCreated.connect_same_thread (*this, boost::bind (&Session::add_playlist, this, _1, _2));
AutomationList::AutomationListCreated.connect_same_thread (*this, boost::bind (&Session::add_automation_list, this, _1));
Controllable::Destroyed.connect_same_thread (*this, boost::bind (&Session::remove_controllable, this, _1));
IO::PortCountChanged.connect_same_thread (*this, boost::bind (&Session::ensure_buffers, this, _1));
/* stop IO objects from doing stuff until we're ready for them */
@ -3739,24 +3738,6 @@ Session::add_controllable (boost::shared_ptr<Controllable> c)
controllables.insert (c);
}
struct null_deleter { void operator()(void const *) const {} };
void
Session::remove_controllable (Controllable* c)
{
if (deletion_in_progress()) {
return;
}
Glib::Threads::Mutex::Lock lm (controllables_lock);
Controllables::iterator x = controllables.find (boost::shared_ptr<Controllable>(c, null_deleter()));
if (x != controllables.end()) {
controllables.erase (x);
}
}
boost::shared_ptr<Controllable>
Session::controllable_by_id (const PBD::ID& id)
{