From 0f86e6b4544aa89c59a1361bbe837f4b3bd5bd66 Mon Sep 17 00:00:00 2001
From: David Robillard <d@drobilla.net>
Date: Mon, 12 Jun 2006 17:57:01 +0000
Subject: Fixed engine-side node destruction bug

git-svn-id: http://svn.drobilla.net/lad/grauph@34 a436a847-0d15-0410-975c-d299462d15a1
---
 src/libs/client/PatchModel.cpp            | 1 +
 src/libs/client/PatchModel.h              | 1 +
 src/libs/engine/QueuedEngineInterface.cpp | 2 +-
 src/libs/engine/QueuedEvent.h             | 2 +-
 src/libs/engine/events/DestroyEvent.cpp   | 5 +++--
 src/libs/engine/events/DestroyEvent.h     | 2 +-
 6 files changed, 8 insertions(+), 5 deletions(-)

(limited to 'src/libs')

diff --git a/src/libs/client/PatchModel.cpp b/src/libs/client/PatchModel.cpp
index 90ffd38a..551b3d4c 100644
--- a/src/libs/client/PatchModel.cpp
+++ b/src/libs/client/PatchModel.cpp
@@ -80,6 +80,7 @@ PatchModel::remove_node(const string& name)
 	if (i != m_nodes.end()) {
 		//delete i->second;
 		m_nodes.erase(i);
+		removed_node_sig.emit(name);
 		return;
 	}
 	
diff --git a/src/libs/client/PatchModel.h b/src/libs/client/PatchModel.h
index bc794d25..6b3b212f 100644
--- a/src/libs/client/PatchModel.h
+++ b/src/libs/client/PatchModel.h
@@ -71,6 +71,7 @@ public:
 	
 	// Signals
 	sigc::signal<void, CountedPtr<NodeModel> >        new_node_sig; 
+	sigc::signal<void, const string& >                removed_node_sig; 
 	sigc::signal<void, CountedPtr<ConnectionModel> >  new_connection_sig; 
 	sigc::signal<void, const string&, const string& > removed_connection_sig; 
 
diff --git a/src/libs/engine/QueuedEngineInterface.cpp b/src/libs/engine/QueuedEngineInterface.cpp
index 0734eb7a..1b50deb9 100644
--- a/src/libs/engine/QueuedEngineInterface.cpp
+++ b/src/libs/engine/QueuedEngineInterface.cpp
@@ -149,7 +149,7 @@ QueuedEngineInterface::rename(const string& old_path,
 void
 QueuedEngineInterface::destroy(const string& path)
 {
-	DestroyEvent* ev = new DestroyEvent(_responder, path);
+	DestroyEvent* ev = new DestroyEvent(_responder, this, path);
 	push(ev);
 }
 
diff --git a/src/libs/engine/QueuedEvent.h b/src/libs/engine/QueuedEvent.h
index 16560aaa..0cdaacdb 100644
--- a/src/libs/engine/QueuedEvent.h
+++ b/src/libs/engine/QueuedEvent.h
@@ -70,7 +70,7 @@ protected:
 	: Event(responder), m_pre_processed(false), m_blocking(blocking), m_source(source)
 	{}
 	
-	// NULL event base (for internal events)
+	// NULL event base (for internal events only!)
 	QueuedEvent()
 	: Event(), m_pre_processed(false), m_blocking(false), m_source(NULL)
 	{}
diff --git a/src/libs/engine/events/DestroyEvent.cpp b/src/libs/engine/events/DestroyEvent.cpp
index 3988195a..85ec0011 100644
--- a/src/libs/engine/events/DestroyEvent.cpp
+++ b/src/libs/engine/events/DestroyEvent.cpp
@@ -35,8 +35,8 @@
 namespace Om {
 
 
-DestroyEvent::DestroyEvent(CountedPtr<Responder> responder, const string& path, bool lock_mutex)
-: QueuedEvent(responder, true),
+DestroyEvent::DestroyEvent(CountedPtr<Responder> responder, QueuedEventSource* source, const string& path, bool lock_mutex)
+: QueuedEvent(responder, true, source),
   m_path(path),
   m_node(NULL),
   m_patch_listnode(NULL),
@@ -142,6 +142,7 @@ DestroyEvent::execute(samplecount offset)
 void
 DestroyEvent::post_process()
 {
+	assert(m_source);
 	m_source->unblock();
 	
 	if (m_node == NULL) {
diff --git a/src/libs/engine/events/DestroyEvent.h b/src/libs/engine/events/DestroyEvent.h
index fc579bf4..8ad5deba 100644
--- a/src/libs/engine/events/DestroyEvent.h
+++ b/src/libs/engine/events/DestroyEvent.h
@@ -44,7 +44,7 @@ class DisconnectPortEvent;
 class DestroyEvent : public QueuedEvent
 {
 public:
-	DestroyEvent(CountedPtr<Responder> responder, const string& path, bool lock_mutex = true);
+	DestroyEvent(CountedPtr<Responder> responder, QueuedEventSource* source, const string& path, bool lock_mutex = true);
 	DestroyEvent(CountedPtr<Responder> responder, Node* node, bool lock_mutex = true);
 	~DestroyEvent();
 
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