1 files changed, 73 insertions, 0 deletions
diff --git a/src/server/ProcessSlave.cpp b/src/server/ProcessSlave.cpp
new file mode 100644
index 00000000..8d60dab3
--- /dev/null
+++ b/src/server/ProcessSlave.cpp
@@ -0,0 +1,73 @@
+/* This file is part of Ingen.
+ * Copyright 2007-2011 David Robillard <http://drobilla.net>
+ *
+ * Ingen is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 2 of the License, or (at your option) any later
+ * version.
+ *
+ * Ingen is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "ProcessSlave.hpp"
+#include "NodeImpl.hpp"
+#include "CompiledPatch.hpp"
+
+using namespace std;
+
+namespace Ingen {
+namespace Server {
+
+uint32_t ProcessSlave::_next_id = 0;
+
+void
+ProcessSlave::_whipped()
+{
+	assert(_compiled_patch);
+	CompiledPatch* const cp = _compiled_patch;
+
+	/* Iterate over all nodes attempting to run immediately or block then run,
+	 * until we've been through the entire array without getting a lock,
+	 * and thus are finished this cycle.
+	 */
+
+	size_t num_finished = 0; // Number of consecutive finished nodes hit
+
+	while (_state == STATE_RUNNING) {
+
+		CompiledNode& n = (*cp)[_index];
+
+		if (n.node()->process_lock()) {
+
+			n.node()->wait_for_input(n.n_providers());
+
+			n.node()->process(*_context);
+
+			/* Signal dependants their input is ready */
+			for (size_t i=0; i < n.dependants().size(); ++i)
+				n.dependants()[i]->signal_input_ready();
+
+			num_finished = 1;
+		} else {
+			++num_finished;
+		}
+
+		_index = (_index + 1) % cp->size();
+
+		if (num_finished >= cp->size())
+			break;
+	}
+
+	_index = 0;
+	_compiled_patch = NULL;
+	_state = STATE_FINISHED;
+}
+
+} // namespace Server
+} // namespace Ingen