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authorDavid Robillard <d@drobilla.net>2011-09-24 03:22:30 +0000
committerDavid Robillard <d@drobilla.net>2011-09-24 03:22:30 +0000
commit74a711e0d1cdb5c505a227dc9b1925657f1e778d (patch)
tree78f93b26e4154c76892cb0160414c4effbfc730e /src/server/events/CreatePort.cpp
parent2be10b0b6f2c0f01870208e9d18e5db87e5dfb88 (diff)
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Use store lock to avoid race conditions with Get and create/delete events.
Get really shouldn't be reading the store (via ObjectSender) in the post processing thread at all, avoiding that entirely would be a better solution. git-svn-id: http://svn.drobilla.net/lad/trunk/ingen@3484 a436a847-0d15-0410-975c-d299462d15a1
Diffstat (limited to 'src/server/events/CreatePort.cpp')
-rw-r--r--src/server/events/CreatePort.cpp9
1 files changed, 8 insertions, 1 deletions
diff --git a/src/server/events/CreatePort.cpp b/src/server/events/CreatePort.cpp
index 4541892b..fdf675a6 100644
--- a/src/server/events/CreatePort.cpp
+++ b/src/server/events/CreatePort.cpp
@@ -58,6 +58,7 @@ CreatePort::CreatePort(
, _patch_port(NULL)
, _driver_port(NULL)
, _properties(properties)
+ , _lock(engine.engine_store()->lock(), Glib::NOT_LOCK)
{
/* This is blocking because of the two different sets of Patch ports, the array used in the
* audio thread (inherited from NodeImpl), and the arrays used in the pre processor thread.
@@ -74,6 +75,8 @@ CreatePort::CreatePort(
void
CreatePort::pre_process()
{
+ _lock.acquire();
+
if (_error == UNKNOWN_TYPE || _engine.engine_store()->find_object(_path)) {
QueuedEvent::pre_process();
return;
@@ -161,8 +164,10 @@ CreatePort::execute(ProcessContext& context)
void
CreatePort::post_process()
{
- if (!_request)
+ if (!_request) {
+ _lock.release();
return;
+ }
string msg;
switch (_error) {
@@ -183,6 +188,8 @@ CreatePort::post_process()
_request->respond_error(msg);
break;
}
+
+ _lock.release();
}
} // namespace Server