Initial community commit

Src/replicant/nu/win-x86/ThreadLoop.h

@@ -0,0 +1,37 @@
+#pragma once
+#include "nu/lfmpscq.h"
+#include "nu/LockFreeLIFO.h"
+#include <windows.h>
+
+struct threadloop_node_t : public queue_node_t
+{
+	void (*func)(void *param1, void *param2, double real_value);
+
+	void *param1;
+	void *param2;
+	double real_value;
+};
+
+class ThreadLoop
+{
+public:
+	ThreadLoop();
+	threadloop_node_t *GetAPC(); // returns a node for you to fill out
+	void Schedule(threadloop_node_t *apc);
+	void Run();
+	void Kill();
+private:
+	void RefillCache();
+
+	HANDLE procedure_notification;
+	HANDLE kill_switch;
+	mpscq_t procedure_queue;
+
+	/* Memory cache to be able to run APCs without having the memory manager lock 
+	we'll allocate 100 at a time (#defined by PROCEDURE_CACHE_SEED)
+	and allocate new ones only if the cache is empty (which unfortunately will lock)
+	cache_bases holds the pointers we've allocated (to free on destruction of this object)
+	and procedure_cache holds the individual pointers */
+	static lifo_t procedure_cache;
+	static lifo_t cache_bases;
+};