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lib/haxerecast/recastnavigation/Detour/Include/DetourAlloc.h

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+//
+// Copyright (c) 2009-2010 Mikko Mononen memon@inside.org
+//
+// This software is provided 'as-is', without any express or implied
+// warranty.  In no event will the authors be held liable for any damages
+// arising from the use of this software.
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would be
+//    appreciated but is not required.
+// 2. Altered source versions must be plainly marked as such, and must not be
+//    misrepresented as being the original software.
+// 3. This notice may not be removed or altered from any source distribution.
+//
+
+#ifndef DETOURALLOCATOR_H
+#define DETOURALLOCATOR_H
+
+#include <stddef.h>
+
+/// Provides hint values to the memory allocator on how long the
+/// memory is expected to be used.
+enum dtAllocHint
+{
+	DT_ALLOC_PERM,		///< Memory persist after a function call.
+	DT_ALLOC_TEMP		///< Memory used temporarily within a function.
+};
+
+/// A memory allocation function.
+//  @param[in]		size			The size, in bytes of memory, to allocate.
+//  @param[in]		rcAllocHint	A hint to the allocator on how long the memory is expected to be in use.
+//  @return A pointer to the beginning of the allocated memory block, or null if the allocation failed.
+///  @see dtAllocSetCustom
+typedef void* (dtAllocFunc)(size_t size, dtAllocHint hint);
+
+/// A memory deallocation function.
+///  @param[in]		ptr		A pointer to a memory block previously allocated using #dtAllocFunc.
+/// @see dtAllocSetCustom
+typedef void (dtFreeFunc)(void* ptr);
+
+/// Sets the base custom allocation functions to be used by Detour.
+///  @param[in]		allocFunc	The memory allocation function to be used by #dtAlloc
+///  @param[in]		freeFunc	The memory de-allocation function to be used by #dtFree
+void dtAllocSetCustom(dtAllocFunc *allocFunc, dtFreeFunc *freeFunc);
+
+/// Allocates a memory block.
+///  @param[in]		size	The size, in bytes of memory, to allocate.
+///  @param[in]		hint	A hint to the allocator on how long the memory is expected to be in use.
+///  @return A pointer to the beginning of the allocated memory block, or null if the allocation failed.
+/// @see dtFree
+void* dtAlloc(size_t size, dtAllocHint hint);
+
+/// Deallocates a memory block.
+///  @param[in]		ptr		A pointer to a memory block previously allocated using #dtAlloc.
+/// @see dtAlloc
+void dtFree(void* ptr);
+
+#endif