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#include "ardour/graph.h"
#include "ardour/graphnode.h"
#include "ardour/route.h"
using namespace ARDOUR;
// ========================================== GraphNode
GraphNode::GraphNode( graph_ptr_t graph )
: _graph(graph)
{ }
void
GraphNode::prep( int chain )
{
_refcount = _init_refcount[chain];
}
void
GraphNode::dec_ref()
{
if (g_atomic_int_dec_and_test( &_refcount ))
_graph->trigger( this );
}
void
GraphNode::finish( int chain )
{
node_set_t::iterator i;
bool feeds_somebody = false;
for (i=_activation_set[chain].begin(); i!=_activation_set[chain].end(); i++)
{
(*i)->dec_ref();
feeds_somebody = true;
}
if (!feeds_somebody)
{
_graph->dec_ref();
}
}
void
GraphNode::process()
{
_graph->process_one_route( dynamic_cast<Route *>(this) );
}
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