Initial commit

include/wfr/enactment/EnactmentEngine.h

@@ -0,0 +1,66 @@
+
+#pragma once
+
+#include <wfr/common/types/LwdTypes.h>
+#include <mutex>
+#include <queue>
+#include <memory>
+#include <condition_variable>
+
+
+namespace wfr {
+
+//Forward declarations
+namespace wfs {
+class Workflow;
+class ActivityInstance;
+}
+namespace wep {
+class WorkflowExecutionPlan;
+}
+namespace scheduling {
+class AbstractScheduler;
+}
+
+// Main namespace
+namespace enactment {
+
+
+class EnactmentEngine {
+
+// Mutable properties that need to be accessed via getter-/setter-functions.
+private:
+	std::shared_ptr<wep::WorkflowExecutionPlan> wep;
+
+	bool breakExecutionLoop = false;
+
+	std::queue<wfs::ActivityInstance*> updateQueue;
+	std::mutex updateMutex;
+	std::condition_variable updateCondition;
+
+	bool enableWepDotFileWriter;
+	bool enableEarlyEvaluation;
+
+// Invariant properties that can be accessed directly.
+public:
+	wfs::Workflow& workflow;
+	scheduling::AbstractScheduler& scheduler;
+
+// Public static functions
+public:
+	static void init(int argc, char** argv);
+	static void finish();
+
+// Public functions
+public:
+	EnactmentEngine(wfs::Workflow& workflow, scheduling::AbstractScheduler& scheduler) noexcept;
+
+	void workflowExecutionLoop(lwd::_wfr_lwd* input, lwd::_wfr_lwd* output);
+
+	void notifyActivityInstanceStateUpdate(wfs::ActivityInstance& ai, scheduling::AbstractScheduler& scheduler);
+};
+
+} /* namespace wep */
+} /* namespace wfr */
+
+