Initial commit

include/wfr/execution/ExecutionHandle.h

@@ -0,0 +1,49 @@
+
+#pragma once
+
+#include <exception>
+#include <memory>
+
+namespace wfr {
+
+// Forward declarations
+namespace scheduling {
+class SchedulingDecision;
+}
+
+namespace execution {
+
+
+enum class ExecutionHandleState
+	: int { Unknown,
+			Pending,
+			Running,
+			Finished,
+			Error };
+
+class ExecutionHandle {
+
+// Invariant properties that can be accessed directly.
+public:
+	std::shared_ptr<wfr::scheduling::SchedulingDecision> schedulingDecision = nullptr;
+
+// Mutable properties that need to be accessed via getter-/setter-functions.
+private:
+	ExecutionHandleState state = ExecutionHandleState::Unknown;
+	std::exception_ptr errorCause = nullptr;
+
+public:
+	ExecutionHandle(std::shared_ptr<wfr::scheduling::SchedulingDecision> schedulingDecision) noexcept :
+			schedulingDecision(schedulingDecision), state(ExecutionHandleState::Pending) {}
+
+	std::exception_ptr getErrorCause() const noexcept { return errorCause; }
+
+	void setErrorCause(std::exception_ptr errorCause) noexcept { this->errorCause = errorCause; }
+
+	ExecutionHandleState getState() const noexcept { return state; }
+
+	void setState(ExecutionHandleState state) noexcept { this->state = state; }
+};
+
+} /* namespace execution */
+} /* namespace wfr */