switch to a RWLock for Playlist, to allow simultaneous reads (which can happen occasionally, eg. peak and butler threads)
git-svn-id: svn://localhost/ardour2/branches/3.0@12301 d708f5d6-7413-0410-9779-e7cbd77b26cf
This commit is contained in:
parent
674a7b3ac0
commit
88f6395134
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@ -230,25 +230,30 @@ public:
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friend class Session;
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protected:
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struct RegionLock {
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RegionLock (Playlist *pl, bool do_block_notify = true) : playlist (pl), block_notify (do_block_notify) {
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if (!playlist->region_lock.trylock()) {
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std::cerr << "Lock for playlist " << pl->name() << " already held\n";
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PBD::stacktrace (std::cerr, 10);
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}
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if (block_notify) {
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playlist->delay_notifications();
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}
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}
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~RegionLock() {
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playlist->region_lock.unlock();
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if (block_notify) {
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playlist->release_notifications ();
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}
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}
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Playlist *playlist;
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bool block_notify;
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};
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struct RegionReadLock : public Glib::RWLock::ReaderLock {
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RegionReadLock (Playlist *pl) : Glib::RWLock::ReaderLock (pl->region_lock) {}
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~RegionReadLock() { Glib::RWLock::ReaderLock::release (); }
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};
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struct RegionWriteLock : public Glib::RWLock::WriterLock {
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RegionWriteLock (Playlist *pl, bool do_block_notify = true)
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: Glib::RWLock::WriterLock (pl->region_lock)
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, playlist (pl)
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, block_notify (do_block_notify) {
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if (block_notify) {
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playlist->delay_notifications();
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}
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}
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~RegionWriteLock() {
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Glib::RWLock::WriterLock::release ();
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if (block_notify) {
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playlist->release_notifications ();
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}
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}
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Playlist *playlist;
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bool block_notify;
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};
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RegionListProperty regions; /* the current list of regions in the playlist */
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std::set<boost::shared_ptr<Region> > all_regions; /* all regions ever added to this playlist */
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@ -365,8 +370,9 @@ public:
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virtual void pre_uncombine (std::vector<boost::shared_ptr<Region> >&, boost::shared_ptr<Region>) {}
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private:
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friend class RegionLock;
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mutable Glib::Mutex region_lock;
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friend class RegionReadLock;
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friend class RegionWriteLock;
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mutable Glib::RWLock region_lock;
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private:
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void setup_layering_indices (RegionList const &);
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@ -66,7 +66,7 @@ AudioPlaylist::AudioPlaylist (boost::shared_ptr<const AudioPlaylist> other, stri
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AudioPlaylist::AudioPlaylist (boost::shared_ptr<const AudioPlaylist> other, framepos_t start, framecnt_t cnt, string name, bool hidden)
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: Playlist (other, start, cnt, name, hidden)
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{
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RegionLock rlock2 (const_cast<AudioPlaylist*> (other.get()));
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RegionReadLock rlock2 (const_cast<AudioPlaylist*> (other.get()));
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in_set_state++;
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framepos_t const end = start + cnt - 1;
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@ -186,7 +186,7 @@ AudioPlaylist::read (Sample *buf, Sample *mixdown_buffer, float *gain_buffer, fr
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its OK to block (for short intervals).
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*/
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Playlist::RegionLock rl (this, false);
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Playlist::RegionReadLock rl (this);
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/* Find all the regions that are involved in the bit we are reading,
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and sort them by descending layer and ascending position.
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@ -437,7 +437,7 @@ AudioPlaylist::destroy_region (boost::shared_ptr<Region> region)
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bool changed = false;
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{
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RegionLock rlock (this);
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RegionWriteLock rlock (this);
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for (RegionList::iterator i = regions.begin(); i != regions.end(); ) {
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@ -107,7 +107,7 @@ MidiPlaylist::read (Evoral::EventSink<framepos_t>& dst, framepos_t start, framec
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its OK to block (for short intervals).
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*/
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Playlist::RegionLock rl (this, false);
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Playlist::RegionReadLock rl (this);
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DEBUG_TRACE (DEBUG::MidiPlaylistIO, string_compose ("++++++ %1 .. %2 +++++++ %3 trackers +++++++++++++++++\n",
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start, start + dur, _note_trackers.size()));
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@ -295,7 +295,7 @@ MidiPlaylist::read (Evoral::EventSink<framepos_t>& dst, framepos_t start, framec
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void
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MidiPlaylist::clear_note_trackers ()
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{
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Playlist::RegionLock rl (this, false);
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Playlist::RegionWriteLock rl (this, false);
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for (NoteTrackers::iterator n = _note_trackers.begin(); n != _note_trackers.end(); ++n) {
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delete n->second;
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@ -367,7 +367,7 @@ MidiPlaylist::destroy_region (boost::shared_ptr<Region> region)
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bool changed = false;
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{
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RegionLock rlock (this);
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RegionWriteLock rlock (this);
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RegionList::iterator i;
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RegionList::iterator tmp;
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@ -401,7 +401,7 @@ MidiPlaylist::contained_automation()
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its OK to block (for short intervals).
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*/
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Playlist::RegionLock rl (this, false);
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Playlist::RegionReadLock rl (this);
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set<Evoral::Parameter> ret;
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for (RegionList::const_iterator r = regions.begin(); r != regions.end(); ++r) {
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@ -195,7 +195,7 @@ Playlist::Playlist (boost::shared_ptr<const Playlist> other, framepos_t start, f
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, _type(other->_type)
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, _orig_track_id (other->_orig_track_id)
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{
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RegionLock rlock2 (const_cast<Playlist*> (other.get()));
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RegionReadLock rlock2 (const_cast<Playlist*> (other.get()));
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framepos_t end = start + cnt - 1;
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@ -287,7 +287,7 @@ Playlist::release ()
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void
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Playlist::copy_regions (RegionList& newlist) const
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{
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RegionLock rlock (const_cast<Playlist *> (this));
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RegionReadLock rlock (const_cast<Playlist *> (this));
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for (RegionList::const_iterator i = regions.begin(); i != regions.end(); ++i) {
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newlist.push_back (RegionFactory::RegionFactory::create (*i, true));
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@ -330,7 +330,7 @@ Playlist::~Playlist ()
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DEBUG_TRACE (DEBUG::Destruction, string_compose ("Playlist %1 destructor\n", _name));
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{
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RegionLock rl (this);
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RegionReadLock rl (this);
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for (set<boost::shared_ptr<Region> >::iterator i = all_regions.begin(); i != all_regions.end(); ++i) {
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(*i)->set_playlist (boost::shared_ptr<Playlist>());
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@ -660,7 +660,7 @@ Playlist::flush_notifications (bool from_undo)
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void
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Playlist::add_region (boost::shared_ptr<Region> region, framepos_t position, float times, bool auto_partition)
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{
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RegionLock rlock (this);
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RegionWriteLock rlock (this);
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times = fabs (times);
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int itimes = (int) floor (times);
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@ -717,7 +717,7 @@ Playlist::flush_notifications (bool from_undo)
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void
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Playlist::set_region_ownership ()
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{
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RegionLock rl (this);
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RegionWriteLock rl (this);
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RegionList::iterator i;
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boost::weak_ptr<Playlist> pl (shared_from_this());
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@ -768,7 +768,7 @@ Playlist::flush_notifications (bool from_undo)
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void
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Playlist::replace_region (boost::shared_ptr<Region> old, boost::shared_ptr<Region> newr, framepos_t pos)
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{
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RegionLock rlock (this);
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RegionWriteLock rlock (this);
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bool old_sp = _splicing;
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_splicing = true;
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@ -785,7 +785,7 @@ Playlist::flush_notifications (bool from_undo)
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void
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Playlist::remove_region (boost::shared_ptr<Region> region)
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{
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RegionLock rlock (this);
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RegionWriteLock rlock (this);
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remove_region_internal (region);
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}
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@ -876,7 +876,7 @@ Playlist::flush_notifications (bool from_undo)
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RegionList new_regions;
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{
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RegionLock rlock (this);
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RegionWriteLock rlock (this);
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boost::shared_ptr<Region> region;
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boost::shared_ptr<Region> current;
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@ -1196,8 +1196,8 @@ Playlist::flush_notifications (bool from_undo)
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times = fabs (times);
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{
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RegionLock rl1 (this);
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RegionLock rl2 (other.get());
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RegionWriteLock rl1 (this);
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RegionReadLock rl2 (other.get());
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int itimes = (int) floor (times);
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framepos_t pos = position;
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@ -1228,7 +1228,7 @@ Playlist::flush_notifications (bool from_undo)
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{
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times = fabs (times);
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RegionLock rl (this);
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RegionWriteLock rl (this);
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int itimes = (int) floor (times);
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framepos_t pos = position + 1;
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@ -1261,7 +1261,7 @@ Playlist::flush_notifications (bool from_undo)
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void
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Playlist::shift (framepos_t at, frameoffset_t distance, bool move_intersected, bool ignore_music_glue)
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{
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RegionLock rlock (this);
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RegionWriteLock rlock (this);
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RegionList copy (regions.rlist());
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RegionList fixup;
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@ -1300,7 +1300,7 @@ Playlist::flush_notifications (bool from_undo)
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void
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Playlist::split (framepos_t at)
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{
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RegionLock rlock (this);
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RegionWriteLock rlock (this);
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RegionList copy (regions.rlist());
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/* use a copy since this operation can modify the region list
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@ -1314,7 +1314,7 @@ Playlist::flush_notifications (bool from_undo)
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void
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Playlist::split_region (boost::shared_ptr<Region> region, framepos_t playlist_position)
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{
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RegionLock rl (this);
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RegionWriteLock rl (this);
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_split_region (region, playlist_position);
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}
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@ -1417,7 +1417,7 @@ Playlist::flush_notifications (bool from_undo)
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Playlist::splice_locked (framepos_t at, framecnt_t distance, boost::shared_ptr<Region> exclude)
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{
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{
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RegionLock rl (this);
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RegionWriteLock rl (this);
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core_splice (at, distance, exclude);
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}
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}
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@ -1582,7 +1582,7 @@ Playlist::flush_notifications (bool from_undo)
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void
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Playlist::drop_regions ()
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{
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RegionLock rl (this);
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RegionWriteLock rl (this);
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regions.clear ();
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all_regions.clear ();
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}
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@ -1590,7 +1590,7 @@ Playlist::flush_notifications (bool from_undo)
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void
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Playlist::sync_all_regions_with_regions ()
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{
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RegionLock rl (this);
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RegionWriteLock rl (this);
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all_regions.clear ();
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@ -1603,7 +1603,7 @@ Playlist::flush_notifications (bool from_undo)
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Playlist::clear (bool with_signals)
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{
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{
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RegionLock rl (this);
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RegionWriteLock rl (this);
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region_state_changed_connections.drop_connections ();
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@ -1638,14 +1638,14 @@ Playlist::flush_notifications (bool from_undo)
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boost::shared_ptr<RegionList>
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Playlist::regions_at (framepos_t frame)
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{
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RegionLock rlock (this);
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RegionReadLock rlock (this);
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return find_regions_at (frame);
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}
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uint32_t
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Playlist::count_regions_at (framepos_t frame) const
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{
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RegionLock rlock (const_cast<Playlist*>(this));
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RegionReadLock rlock (const_cast<Playlist*>(this));
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uint32_t cnt = 0;
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for (RegionList::const_iterator i = regions.begin(); i != regions.end(); ++i) {
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@ -1661,7 +1661,7 @@ Playlist::regions_at (framepos_t frame)
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Playlist::top_region_at (framepos_t frame)
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{
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RegionLock rlock (this);
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RegionReadLock rlock (this);
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boost::shared_ptr<RegionList> rlist = find_regions_at (frame);
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boost::shared_ptr<Region> region;
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@ -1678,7 +1678,7 @@ Playlist::regions_at (framepos_t frame)
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Playlist::top_unmuted_region_at (framepos_t frame)
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{
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RegionLock rlock (this);
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RegionReadLock rlock (this);
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boost::shared_ptr<RegionList> rlist = find_regions_at (frame);
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for (RegionList::iterator i = rlist->begin(); i != rlist->end(); ) {
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@ -1723,7 +1723,7 @@ Playlist::find_regions_at (framepos_t frame)
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boost::shared_ptr<RegionList>
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Playlist::regions_with_start_within (Evoral::Range<framepos_t> range)
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{
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RegionLock rlock (this);
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RegionReadLock rlock (this);
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boost::shared_ptr<RegionList> rlist (new RegionList);
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for (RegionList::iterator i = regions.begin(); i != regions.end(); ++i) {
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@ -1738,7 +1738,7 @@ Playlist::regions_with_start_within (Evoral::Range<framepos_t> range)
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boost::shared_ptr<RegionList>
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Playlist::regions_with_end_within (Evoral::Range<framepos_t> range)
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{
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RegionLock rlock (this);
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RegionReadLock rlock (this);
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boost::shared_ptr<RegionList> rlist (new RegionList);
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for (RegionList::iterator i = regions.begin(); i != regions.end(); ++i) {
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@ -1757,7 +1757,7 @@ Playlist::regions_with_end_within (Evoral::Range<framepos_t> range)
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boost::shared_ptr<RegionList>
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Playlist::regions_touched (framepos_t start, framepos_t end)
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{
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RegionLock rlock (this);
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RegionReadLock rlock (this);
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return regions_touched_locked (start, end);
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}
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@ -1778,7 +1778,7 @@ Playlist::regions_touched_locked (framepos_t start, framepos_t end)
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framepos_t
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Playlist::find_next_transient (framepos_t from, int dir)
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{
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RegionLock rlock (this);
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RegionReadLock rlock (this);
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AnalysisFeatureList points;
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AnalysisFeatureList these_points;
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@ -1838,7 +1838,7 @@ Playlist::find_next_transient (framepos_t from, int dir)
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boost::shared_ptr<Region>
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Playlist::find_next_region (framepos_t frame, RegionPoint point, int dir)
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{
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RegionLock rlock (this);
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RegionReadLock rlock (this);
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boost::shared_ptr<Region> ret;
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framepos_t closest = max_framepos;
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@ -1898,7 +1898,7 @@ Playlist::find_next_region (framepos_t frame, RegionPoint point, int dir)
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framepos_t
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Playlist::find_next_region_boundary (framepos_t frame, int dir)
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{
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RegionLock rlock (this);
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RegionReadLock rlock (this);
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framepos_t closest = max_framepos;
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framepos_t ret = -1;
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@ -1980,14 +1980,14 @@ Playlist::find_next_region (framepos_t frame, RegionPoint point, int dir)
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void
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Playlist::rdiff (vector<Command*>& cmds) const
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{
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RegionLock rlock (const_cast<Playlist *> (this));
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RegionReadLock rlock (const_cast<Playlist *> (this));
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Stateful::rdiff (cmds);
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}
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void
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Playlist::clear_owned_changes ()
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{
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RegionLock rlock (this);
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RegionReadLock rlock (this);
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Stateful::clear_owned_changes ();
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}
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@ -2092,7 +2092,7 @@ Playlist::find_next_region (framepos_t frame, RegionPoint point, int dir)
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}
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{
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RegionLock rlock (this);
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RegionWriteLock rlock (this);
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add_region_internal (region, region->position());
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}
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@ -2152,7 +2152,7 @@ Playlist::state (bool full_state)
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node->add_property (X_("frozen"), _frozen ? "yes" : "no");
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if (full_state) {
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RegionLock rlock (this, false);
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RegionReadLock rlock (this);
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snprintf (buf, sizeof (buf), "%u", _combine_ops);
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node->add_property ("combine-ops", buf);
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@ -2172,21 +2172,21 @@ Playlist::state (bool full_state)
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bool
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Playlist::empty() const
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{
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RegionLock rlock (const_cast<Playlist *>(this), false);
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RegionReadLock rlock (const_cast<Playlist *>(this));
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return regions.empty();
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}
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uint32_t
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Playlist::n_regions() const
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{
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RegionLock rlock (const_cast<Playlist *>(this), false);
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RegionReadLock rlock (const_cast<Playlist *>(this));
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return regions.size();
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}
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pair<framepos_t, framepos_t>
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Playlist::get_extent () const
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{
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RegionLock rlock (const_cast<Playlist *>(this), false);
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RegionReadLock rlock (const_cast<Playlist *>(this));
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return _get_extent ();
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}
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@ -2229,7 +2229,7 @@ Playlist::bump_name (string name, Session &session)
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layer_t
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||||
Playlist::top_layer() const
|
||||
{
|
||||
RegionLock rlock (const_cast<Playlist *> (this));
|
||||
RegionReadLock rlock (const_cast<Playlist *> (this));
|
||||
layer_t top = 0;
|
||||
|
||||
for (RegionList::const_iterator i = regions.begin(); i != regions.end(); ++i) {
|
||||
|
|
@ -2450,7 +2450,7 @@ Playlist::nudge_after (framepos_t start, framecnt_t distance, bool forwards)
|
|||
_nudging = true;
|
||||
|
||||
{
|
||||
RegionLock rlock (const_cast<Playlist *> (this));
|
||||
RegionWriteLock rlock (const_cast<Playlist *> (this));
|
||||
|
||||
for (i = regions.begin(); i != regions.end(); ++i) {
|
||||
|
||||
|
|
@ -2491,7 +2491,7 @@ Playlist::nudge_after (framepos_t start, framecnt_t distance, bool forwards)
|
|||
bool
|
||||
Playlist::uses_source (boost::shared_ptr<const Source> src) const
|
||||
{
|
||||
RegionLock rlock (const_cast<Playlist*> (this));
|
||||
RegionReadLock rlock (const_cast<Playlist*> (this));
|
||||
|
||||
for (set<boost::shared_ptr<Region> >::iterator r = all_regions.begin(); r != all_regions.end(); ++r) {
|
||||
if ((*r)->uses_source (src)) {
|
||||
|
|
@ -2505,7 +2505,7 @@ Playlist::uses_source (boost::shared_ptr<const Source> src) const
|
|||
boost::shared_ptr<Region>
|
||||
Playlist::find_region (const ID& id) const
|
||||
{
|
||||
RegionLock rlock (const_cast<Playlist*> (this));
|
||||
RegionReadLock rlock (const_cast<Playlist*> (this));
|
||||
|
||||
/* searches all regions currently in use by the playlist */
|
||||
|
||||
|
|
@ -2521,7 +2521,7 @@ Playlist::find_region (const ID& id) const
|
|||
uint32_t
|
||||
Playlist::region_use_count (boost::shared_ptr<Region> r) const
|
||||
{
|
||||
RegionLock rlock (const_cast<Playlist*> (this));
|
||||
RegionReadLock rlock (const_cast<Playlist*> (this));
|
||||
uint32_t cnt = 0;
|
||||
|
||||
for (RegionList::const_iterator i = regions.begin(); i != regions.end(); ++i) {
|
||||
|
|
@ -2585,7 +2585,7 @@ Playlist::shuffle (boost::shared_ptr<Region> region, int dir)
|
|||
_shuffling = true;
|
||||
|
||||
{
|
||||
RegionLock rlock (const_cast<Playlist*> (this));
|
||||
RegionWriteLock rlock (const_cast<Playlist*> (this));
|
||||
|
||||
|
||||
if (dir > 0) {
|
||||
|
|
@ -2690,7 +2690,7 @@ Playlist::shuffle (boost::shared_ptr<Region> region, int dir)
|
|||
bool
|
||||
Playlist::region_is_shuffle_constrained (boost::shared_ptr<Region>)
|
||||
{
|
||||
RegionLock rlock (const_cast<Playlist*> (this));
|
||||
RegionReadLock rlock (const_cast<Playlist*> (this));
|
||||
|
||||
if (regions.size() > 1) {
|
||||
return true;
|
||||
|
|
@ -2702,7 +2702,7 @@ Playlist::region_is_shuffle_constrained (boost::shared_ptr<Region>)
|
|||
void
|
||||
Playlist::update_after_tempo_map_change ()
|
||||
{
|
||||
RegionLock rlock (const_cast<Playlist*> (this));
|
||||
RegionWriteLock rlock (const_cast<Playlist*> (this));
|
||||
RegionList copy (regions.rlist());
|
||||
|
||||
freeze ();
|
||||
|
|
@ -2717,7 +2717,7 @@ Playlist::update_after_tempo_map_change ()
|
|||
void
|
||||
Playlist::foreach_region (boost::function<void(boost::shared_ptr<Region>)> s)
|
||||
{
|
||||
RegionLock rl (this, false);
|
||||
RegionWriteLock rl (this, false);
|
||||
for (RegionList::iterator i = regions.begin(); i != regions.end(); ++i) {
|
||||
s (*i);
|
||||
}
|
||||
|
|
@ -2726,7 +2726,7 @@ Playlist::foreach_region (boost::function<void(boost::shared_ptr<Region>)> s)
|
|||
bool
|
||||
Playlist::has_region_at (framepos_t const p) const
|
||||
{
|
||||
RegionLock (const_cast<Playlist *> (this));
|
||||
RegionReadLock (const_cast<Playlist *> (this));
|
||||
|
||||
RegionList::const_iterator i = regions.begin ();
|
||||
while (i != regions.end() && !(*i)->covers (p)) {
|
||||
|
|
@ -2740,7 +2740,7 @@ Playlist::has_region_at (framepos_t const p) const
|
|||
void
|
||||
Playlist::remove_region_by_source (boost::shared_ptr<Source> s)
|
||||
{
|
||||
RegionLock rl (this);
|
||||
RegionWriteLock rl (this);
|
||||
|
||||
RegionList::iterator i = regions.begin();
|
||||
while (i != regions.end()) {
|
||||
|
|
@ -2763,7 +2763,7 @@ Playlist::remove_region_by_source (boost::shared_ptr<Source> s)
|
|||
framepos_t
|
||||
Playlist::find_next_top_layer_position (framepos_t t) const
|
||||
{
|
||||
RegionLock rlock (const_cast<Playlist *> (this));
|
||||
RegionReadLock rlock (const_cast<Playlist *> (this));
|
||||
|
||||
layer_t const top = top_layer ();
|
||||
|
||||
|
|
@ -3063,7 +3063,7 @@ Playlist::uncombine (boost::shared_ptr<Region> target)
|
|||
uint32_t
|
||||
Playlist::max_source_level () const
|
||||
{
|
||||
RegionLock rlock (const_cast<Playlist *> (this));
|
||||
RegionReadLock rlock (const_cast<Playlist *> (this));
|
||||
uint32_t lvl = 0;
|
||||
|
||||
for (RegionList::const_iterator i = regions.begin(); i != regions.end(); ++i) {
|
||||
|
|
|
|||
Loading…
Reference in New Issue