Add even more of the source

This should be about everything needed to build so far?

CommonUtilitiesLib/OSQueue.h

@@ -0,0 +1,151 @@
+/*
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ *
+ * Copyright (c) 1999-2008 Apple Inc.  All Rights Reserved.
+ *
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ * 
+ * @APPLE_LICENSE_HEADER_END@
+ *
+ */
+/*
+    File:       OSQueue.h
+
+    Contains:   implements OSQueue class
+                    
+    
+*/
+
+#ifndef _OSQUEUE_H_
+#define _OSQUEUE_H_
+
+#include "MyAssert.h"
+#include "OSHeaders.h"
+#include "OSMutex.h"
+#include "OSCond.h"
+#include "OSThread.h"
+
+#define OSQUEUETESTING 0
+
+class OSQueue;
+
+class OSQueueElem {
+    public:
+        OSQueueElem(void* enclosingObject = NULL) : fNext(NULL), fPrev(NULL), fQueue(NULL),
+                                                    fEnclosingObject(enclosingObject) {}
+        virtual ~OSQueueElem() { Assert(fQueue == NULL); }
+
+        Bool16 IsMember(const OSQueue& queue) { return (&queue == fQueue); }
+        Bool16 IsMemberOfAnyQueue()     { return fQueue != NULL; }
+        void* GetEnclosingObject()  { return fEnclosingObject; }
+        void SetEnclosingObject(void* obj) { fEnclosingObject = obj; }
+
+        OSQueueElem* Next() { return fNext; }
+        OSQueueElem* Prev() { return fPrev; }
+        OSQueue* InQueue()  { return fQueue; }
+        inline void Remove();
+
+    private:
+
+        OSQueueElem*    fNext;
+        OSQueueElem*    fPrev;
+        OSQueue *       fQueue;
+        void*           fEnclosingObject;
+
+        friend class    OSQueue;
+};
+
+class OSQueue {
+    public:
+        OSQueue();
+        ~OSQueue() {}
+
+        void            EnQueue(OSQueueElem* object);
+        OSQueueElem*    DeQueue();
+
+        OSQueueElem*    GetHead() { if (fLength > 0) return fSentinel.fPrev; return NULL; }
+        OSQueueElem*    GetTail() { if (fLength > 0) return fSentinel.fNext; return NULL; }
+        UInt32          GetLength() { return fLength; }
+        
+        void            Remove(OSQueueElem* object);
+
+#if OSQUEUETESTING
+        static Bool16       Test();
+#endif
+
+    protected:
+
+        OSQueueElem     fSentinel;
+        UInt32          fLength;
+};
+
+class OSQueueIter
+{
+    public:
+        OSQueueIter(OSQueue* inQueue) : fQueueP(inQueue), fCurrentElemP(inQueue->GetHead()) {}
+        OSQueueIter(OSQueue* inQueue, OSQueueElem* startElemP ) : fQueueP(inQueue)
+            {
+                if ( startElemP )
+                {   Assert( startElemP->IsMember(*inQueue ) );
+                    fCurrentElemP = startElemP;
+                
+                }
+                else
+                    fCurrentElemP = NULL;
+            }
+        ~OSQueueIter() {}
+        
+        void            Reset() { fCurrentElemP = fQueueP->GetHead(); }
+        
+        OSQueueElem*    GetCurrent() { return fCurrentElemP; }
+        void            Next();
+        
+        Bool16          IsDone() { return fCurrentElemP == NULL; }
+        
+    private:
+    
+        OSQueue*        fQueueP;
+        OSQueueElem*    fCurrentElemP;
+};
+
+class OSQueue_Blocking
+{
+    public:
+        OSQueue_Blocking() {}
+        ~OSQueue_Blocking() {}
+        
+        OSQueueElem*    DeQueueBlocking(OSThread* inCurThread, SInt32 inTimeoutInMilSecs);
+        OSQueueElem*    DeQueue();//will not block
+        void            EnQueue(OSQueueElem* obj);
+        
+        OSCond*         GetCond()   { return &fCond; }
+        OSQueue*        GetQueue()  { return &fQueue; }
+        
+    private:
+
+        OSCond              fCond;
+        OSMutex             fMutex;
+        OSQueue             fQueue;
+};
+
+
+void    OSQueueElem::Remove()
+{
+    if (fQueue != NULL)
+        fQueue->Remove(this);
+}
+#endif //_OSQUEUE_H_