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// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Thin allocation wrappers for the windows heap. This file should be deleted
// once the win-specific allocation shim has been removed, and the generic shim
// has becaome the default.
#include <stdint.h>
#include "base/base_export.h"
namespace base {
namespace allocator {
// Set to true if the link-time magic has successfully hooked into the CRT's
// heap initialization.
extern bool g_is_win_shim_layer_initialized;
// Thin wrappers to implement the standard C allocation semantics on the
// CRT's Windows heap.
void* WinHeapMalloc(size_t size);
void WinHeapFree(void* ptr);
void* WinHeapRealloc(void* ptr, size_t size);
// Returns a lower-bound estimate for the full amount of memory consumed by the
// the allocation |ptr|.
size_t WinHeapGetSizeEstimate(void* ptr);
// Call the new handler, if one has been set.
// Returns true on successfully calling the handler, false otherwise.
bool WinCallNewHandler(size_t size);
// Wrappers to implement the interface for the _aligned_* functions on top of
// the CRT's Windows heap. Exported for tests.
BASE_EXPORT void* WinHeapAlignedMalloc(size_t size, size_t alignment);
BASE_EXPORT void* WinHeapAlignedRealloc(void* ptr,
size_t size,
size_t alignment);
BASE_EXPORT void WinHeapAlignedFree(void* ptr);
} // namespace allocator
} // namespace base