From 54d5f36311d041ce3d5fa3e6ed14fde30bcb70b7 Mon Sep 17 00:00:00 2001
From: Paul Davis <paul@linuxaudiosystems.com>
Date: Tue, 28 Jun 2016 15:05:48 -0400
Subject: changes in logic used by source cleanup to avoid endless recursion in
 sessions with deeply nested/recursive compound regions.

This also fixes some potentially dangerous cleanup logic related to two sources with the same name (but different paths)
---
 libs/ardour/playlist.cc | 37 +++++++++++++++----------------------
 1 file changed, 15 insertions(+), 22 deletions(-)

(limited to 'libs/ardour/playlist.cc')

diff --git a/libs/ardour/playlist.cc b/libs/ardour/playlist.cc
index eaee1c4326..7267ec8cdf 100644
--- a/libs/ardour/playlist.cc
+++ b/libs/ardour/playlist.cc
@@ -1774,12 +1774,23 @@ Playlist::region_bounds_changed (const PropertyChange& what_changed, boost::shar
   **********************************************************************/
 
 boost::shared_ptr<RegionList>
-Playlist::region_list() {
+Playlist::region_list()
+{
 	RegionReadLock rlock (this);
 	boost::shared_ptr<RegionList> rlist (new RegionList (regions.rlist ()));
 	return rlist;
 }
 
+void
+Playlist::deep_sources (std::set<boost::shared_ptr<Source> >& sources) const
+{
+	RegionReadLock rlock (const_cast<Playlist*>(this));
+
+	for (RegionList::const_iterator i = regions.begin(); i != regions.end(); ++i) {
+		(*i)->deep_sources (sources);
+	}
+}
+
 boost::shared_ptr<RegionList>
 Playlist::regions_at (framepos_t frame)
 {
@@ -2659,12 +2670,12 @@ Playlist::nudge_after (framepos_t start, framecnt_t distance, bool forwards)
 }
 
 bool
-Playlist::uses_source (boost::shared_ptr<const Source> src) const
+Playlist::uses_source (boost::shared_ptr<const Source> src, bool shallow) const
 {
 	RegionReadLock rlock (const_cast<Playlist*> (this));
 
 	for (set<boost::shared_ptr<Region> >::const_iterator r = all_regions.begin(); r != all_regions.end(); ++r) {
-		if ((*r)->uses_source (src)) {
+		if ((*r)->uses_source (src, true)) {
 			return true;
 		}
 	}
@@ -2672,6 +2683,7 @@ Playlist::uses_source (boost::shared_ptr<const Source> src) const
 	return false;
 }
 
+
 boost::shared_ptr<Region>
 Playlist::find_region (const ID& id) const
 {
@@ -2936,25 +2948,6 @@ Playlist::has_region_at (framepos_t const p) const
 	return (i != regions.end());
 }
 
-/** Remove any region that uses a given source */
-void
-Playlist::remove_region_by_source (boost::shared_ptr<Source> s)
-{
-	RegionWriteLock rl (this);
-
-	RegionList::iterator i = regions.begin();
-	while (i != regions.end()) {
-		RegionList::iterator j = i;
-		++j;
-
-		if ((*i)->uses_source (s)) {
-			remove_region_internal (*i);
-		}
-
-		i = j;
-	}
-}
-
 /** Look from a session frame time and find the start time of the next region
  *  which is on the top layer of this playlist.
  *  @param t Time to look from.
-- 
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