Libspinscale: Initial top-level SMO port to coroutine framework

We haven't ported everything. Just the top-level methods. We'll
dig in to the leaf stuff later. Surprisingly, this all went without
any real difficulties.

Runs like a charm on first try.

smocore/include/marionette/marionette.h

@@ -4,9 +4,12 @@
 #include <boost/asio/signal_set.hpp>
 #include <cstdint>
 #include <atomic>
+#include <exception>
 #include <functional>
 #include <memory>
+#include <optional>
 #include <spinscale/component.h>
+#include <marionette/marionetteThread.h>
 
 namespace sscl {
 
@@ -26,11 +29,17 @@ public:
 	{}
 	~MarionetteComponent() = default;
 
-public:
-	typedef std::function<void(bool)> mrnttLifetimeMgmtOpCbFn;
-	void initializeReq(sscl::Callback<mrnttLifetimeMgmtOpCbFn> callback);
-	void finalizeReq(sscl::Callback<mrnttLifetimeMgmtOpCbFn> callback);
-	// Intentionally doesn't take a callback.
+	void holdInitializeCReq(std::function<void()> completion);
+	void holdFinalizeCReq(std::function<void()> completion);
+
+	MrnttNonViralPostingInvoker initializeCReq(
+		std::exception_ptr &exceptionPtr,
+		std::function<void()> callback);
+
+	MrnttNonViralPostingInvoker finalizeCReq(
+		std::exception_ptr &exceptionPtr,
+		std::function<void()> callback);
+
 	void exceptionInd();
 
 	void handleLoopExceptionHook() override;
@@ -47,11 +56,14 @@ protected:
 	void handleTryBlock1UnknownException() override;
 
 private:
-	class MrnttLifetimeMgmtOp;
-	class TerminationEvent;
-
 	std::unique_ptr<boost::asio::signal_set> signals;
 	bool callShutdownSalmanoff = false;
+	std::optional<MrnttNonViralPostingInvoker> initializeCReqInvoker;
+	std::optional<MrnttNonViralPostingInvoker> finalizeCReqInvoker;
+
+public:
+	std::exception_ptr initializeLifetimeExceptionPtr;
+	std::exception_ptr finalizeLifetimeExceptionPtr;
 };
 
 extern std::shared_ptr<sscl::PuppeteerThread> thread;