ComponentThread: Remove lambdas; use standard async pattern

We've finally cleaned this code up by removing these dirty lambdas.
Next we do the Mind:: class sequences.

smocore/include/componentThread.h

@@ -54,11 +54,13 @@ public:
 	typedef void (mainFn)(ComponentThread &self);
 	static mainFn main, marionetteMain;
 
+	typedef std::function<void()> threadLifetimeMgmtOpCbFn;
 	// Thread management methods
-	void startThreadReq(std::function<void()> callback = nullptr);
-	void exitThreadReq(std::function<void()> callback = nullptr);
-	void pauseThreadReq(std::function<void()> callback = nullptr);
-	void resumeThreadReq(std::function<void()> callback = nullptr);
+	void startThreadReq(threadLifetimeMgmtOpCbFn callback);
+	void exitThreadReq(threadLifetimeMgmtOpCbFn callback);
+	void pauseThreadReq(threadLifetimeMgmtOpCbFn callback);
+	void resumeThreadReq(threadLifetimeMgmtOpCbFn callback);
+
 	/**
 	 * JOLTs this thread to begin processing after global initialization.
 	 *
@@ -66,7 +68,7 @@ public:
 	 * event loops and set up TLS vars after all global constructors have
 	 * completed. This prevents race conditions during system startup.
 	 */
-	void joltThreadReq(std::function<void()> callback = nullptr);
+	void joltThreadReq(threadLifetimeMgmtOpCbFn callback);
 
 	// CPU management methods
 	static int getAvailableCpuCount();
@@ -82,8 +84,9 @@ public:
 		N_ITEMS
 	};
 
+	typedef std::function<void()> mindShutdownIndOpCbFn;
 	// Intentionally doesn't take a callback.
-	void exceptionInd(ComponentThread& thread);
+	void exceptionInd(const std::shared_ptr<ComponentThread> &faultyThread);
 	// Intentionally doesn't take a callback.
 	void userShutdownInd();
 
@@ -124,6 +127,10 @@ public:
 
 		return threadNames[id];
 	}
+
+private:
+	class ThreadLifetimeMgmtOp;
+	class MindShutdownIndOp;
 };
 
 namespace mrntt {