Engine directory for ticket #1

Engine/lib/collada/include/dae/daeMemorySystem.h

@@ -0,0 +1,62 @@
+/*
+ * Copyright 2006 Sony Computer Entertainment Inc.
+ *
+ * Licensed under the SCEA Shared Source License, Version 1.0 (the "License"); you may not use this 
+ * file except in compliance with the License. You may obtain a copy of the License at:
+ * http://research.scea.com/scea_shared_source_license.html
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed under the License 
+ * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or 
+ * implied. See the License for the specific language governing permissions and limitations under the 
+ * License. 
+ */
+
+#ifndef __DAE_MEMORY_SYSTEM_H__
+#define __DAE_MEMORY_SYSTEM_H__
+
+#include <dae/daeTypes.h>
+
+/**
+ * The @c daeMemorySystem class is a simple wrapper for memory operations.
+ * Every allocation passes a string pool name such that
+ * in the future different pools can be used based on allocation type.
+ * Currently the system is just a pass-through to system @c malloc.
+ */
+class daeMemorySystem
+{
+public:
+	/**
+	 * Provides a wrapper malloc with pool field.
+	 * @param pool String name of the pool to use for this allocation.
+	 * @param n Number of bytes to allocate.
+	 * @return Returns the memory allocated if successful, or NULL if not.
+	 */
+	static DLLSPEC daeRawRef alloc(daeString pool, size_t n);
+
+	/**
+	 * Provides a wrapper free with pool argument.
+	 * @param pool Pool the memory should be freed from.
+	 * @param mem Memory to be freed.
+	 */
+	static DLLSPEC void dealloc(daeString pool, daeRawRef mem);
+};
+
+// (steveT) These new/delete overrides aren't complete. What about new[] and delete[]?
+// Standard new should throw a bad_alloc exception, and a nothrow new should be provided
+// that returns null instead of throwing bad_alloc. Because of these problems, plus the
+// fact that we currently don't benefit in any way from overriding new and delete, this
+// code is currently disabled.
+
+#if 0
+#define DAE_ALLOC \
+	/* Standard new/delete */ \
+	inline void* operator new(size_t size) { return daeMemorySystem::alloc("meta", size); } \
+	inline void operator delete(void* p) { daeMemorySystem::dealloc("meta", p); } \
+	/* Placement new/delete */ \
+	inline void* operator new(size_t, void* p) { return p; } \
+	inline void operator delete(void*, void*) { }
+#endif
+
+#define DAE_ALLOC
+
+#endif // __DAE_MEMORY_H__