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Accommodate newly introduced source(s) in our MSVC project (cairocanvas)
[ardour.git]
/
libs
/
ardour
/
graphnode.cc
diff --git
a/libs/ardour/graphnode.cc
b/libs/ardour/graphnode.cc
index 7c0bc936d7d3759993cfce41e5e28173ec8cf96f..c8923a043df84f441d2d0f1e316bebb36d84665d 100644
(file)
--- a/
libs/ardour/graphnode.cc
+++ b/
libs/ardour/graphnode.cc
@@
-24,9
+24,9
@@
using namespace ARDOUR;
using namespace ARDOUR;
-GraphNode::GraphNode (
graph_ptr_t
graph)
+GraphNode::GraphNode (
boost::shared_ptr<Graph>
graph)
: _graph(graph)
: _graph(graph)
-{
+{
}
GraphNode::~GraphNode()
}
GraphNode::~GraphNode()
@@
-36,14
+36,22
@@
GraphNode::~GraphNode()
void
GraphNode::prep (int chain)
{
void
GraphNode::prep (int chain)
{
+ /* This is the number of nodes that directly feed us */
_refcount = _init_refcount[chain];
}
_refcount = _init_refcount[chain];
}
+/** Called by another node to tell us that one of the nodes that feed us
+ * has been processed.
+ */
void
GraphNode::dec_ref()
{
void
GraphNode::dec_ref()
{
- if (g_atomic_int_dec_and_test (&_refcount))
+ if (g_atomic_int_dec_and_test (&_refcount)) {
+ /* All the nodes that feed us are done, so we can queue this node
+ for processing.
+ */
_graph->trigger (this);
_graph->trigger (this);
+ }
}
void
}
void
@@
-52,12
+60,14
@@
GraphNode::finish (int chain)
node_set_t::iterator i;
bool feeds_somebody = false;
node_set_t::iterator i;
bool feeds_somebody = false;
+ /* Tell the nodes that we feed that we've finished */
for (i=_activation_set[chain].begin(); i!=_activation_set[chain].end(); i++) {
(*i)->dec_ref();
feeds_somebody = true;
}
if (!feeds_somebody) {
for (i=_activation_set[chain].begin(); i!=_activation_set[chain].end(); i++) {
(*i)->dec_ref();
feeds_somebody = true;
}
if (!feeds_somebody) {
+ /* This node does not feed anybody, so decrement the graph's finished count */
_graph->dec_ref();
}
}
_graph->dec_ref();
}
}