diff options
author | Paul Davis <paul@linuxaudiosystems.com> | 2010-06-23 20:14:07 +0000 |
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committer | Paul Davis <paul@linuxaudiosystems.com> | 2010-06-23 20:14:07 +0000 |
commit | f4401c59284258c6aa56707da64e3da32756329f (patch) | |
tree | 73679199ae43516347d607adad212c10612f7eb9 /libs/ardour/ardour/source.h | |
parent | cac03dbeb6ebdcd406385dd14a746cb8c51dd5f8 (diff) |
midway snapshot of work done on managing Region & Source lifetimes correctly. may fix missing MIDI file bug ; save empty playlists because they may be referred to by the history file ; undo commands auto-delete when objects they refer to die (currently not commands built from XML deserialization); Sources now know how many regions are using them for something, meaning that we know if we can delete the files holding any data for the source
git-svn-id: svn://localhost/ardour2/branches/3.0@7291 d708f5d6-7413-0410-9779-e7cbd77b26cf
Diffstat (limited to 'libs/ardour/ardour/source.h')
-rw-r--r-- | libs/ardour/ardour/source.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/libs/ardour/ardour/source.h b/libs/ardour/ardour/source.h index bf92e5a6e4..16a762eb94 100644 --- a/libs/ardour/ardour/source.h +++ b/libs/ardour/ardour/source.h @@ -23,6 +23,8 @@ #include <string> #include <set> +#include <glib.h> + #include <boost/utility.hpp> #include "pbd/statefuldestructible.h" @@ -102,6 +104,15 @@ class Source : public SessionObject Glib::Mutex& mutex() { return _lock; } Flag flags() const { return _flags; } + void inc_use_count () { g_atomic_int_inc (&_use_count); } + void dec_use_count () { + gint oldval = g_atomic_int_exchange_and_add (&_use_count, -1); + assert (oldval > 0); + } + + int use_count() const { return g_atomic_int_get (&_use_count); } + bool used() const { return use_count() > 0; } + protected: DataType _type; Flag _flags; @@ -111,6 +122,7 @@ class Source : public SessionObject mutable Glib::Mutex _lock; mutable Glib::Mutex _analysis_lock; Glib::Mutex _playlist_lock; + gint _use_count; /* atomic */ private: void fix_writable_flags (); |