Initial checkin

BeefySysLib/util/CritSect.h

@@ -0,0 +1,108 @@
+#pragma once
+
+#include "../Common.h"
+
+NS_BF_BEGIN;
+
+class CritSect
+{
+public:
+	BfpCritSect* mCritSect;	
+	int32 mLockCount;
+
+public:
+	CritSect()
+	{				
+		mCritSect = BfpCritSect_Create();
+		mLockCount = 0;
+	}
+		
+	~CritSect()
+	{
+		BfpCritSect_Release(mCritSect);
+		BF_ASSERT(mLockCount == 0);
+	}	
+
+	bool TryLock() 
+	{ 
+		bool locked = BfpCritSect_TryEnter(mCritSect, 0); 
+		if (locked)
+			mLockCount++;
+		return locked;
+	}	
+	
+	bool TryLock(int waitMS)
+	{
+		bool locked = BfpCritSect_TryEnter(mCritSect, waitMS);
+		if (locked)
+			mLockCount++;
+		return locked;
+	}
+
+	void Lock() 
+	{  
+		BfpCritSect_Enter(mCritSect); 
+		mLockCount++;
+	}
+
+	void Unlock() 
+	{ 
+		mLockCount--;
+		BfpCritSect_Leave(mCritSect); 
+	}
+};
+
+class SyncEvent
+{
+public:
+	BfpEvent* mEvent;
+
+public:
+	SyncEvent(bool manualReset = false, bool initialState = false)
+	{
+		BfpEventFlags flags = (manualReset) ? BfpEventFlag_AllowManualReset : (BfpEventFlags)(BfpEventFlag_AllowAutoReset | BfpEventFlag_AllowManualReset);
+		if (initialState)		
+			flags = (BfpEventFlags)(flags | (manualReset ? BfpEventFlag_InitiallySet_Manual : BfpEventFlag_InitiallySet_Auto));
+		mEvent = BfpEvent_Create(flags);
+	}
+
+	~SyncEvent()
+	{
+		BfpEvent_Release(mEvent);
+	}
+		
+	void Set(bool requireManualReset = false)
+	{
+		BfpEvent_Set(mEvent, requireManualReset);		
+	}
+	
+	void Reset()
+	{
+		BfpEvent_Reset(mEvent, NULL);
+	}	
+
+	bool WaitFor(int timeoutMS = -1)
+	{
+		return BfpEvent_WaitFor(mEvent, timeoutMS);
+	}	
+};
+
+class AutoCrit
+{
+public:
+	CritSect* mCritSect;
+    
+public:
+	AutoCrit(CritSect& critSect)
+	{
+		mCritSect = &critSect;
+		mCritSect->Lock();
+	}
+    
+	~AutoCrit()
+	{
+		mCritSect->Unlock();
+	}
+};
+
+NS_BF_END;