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- // Copyright (c) 2018 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.
- #ifndef BASE_ALLOCATOR_PARTITION_ALLOCATOR_PARTITION_COOKIE_H_
- #define BASE_ALLOCATOR_PARTITION_ALLOCATOR_PARTITION_COOKIE_H_
- #include "base/allocator/partition_allocator/partition_alloc_base/compiler_specific.h"
- #include "base/allocator/partition_allocator/partition_alloc_base/debug/debugging_buildflags.h"
- #include "base/allocator/partition_allocator/partition_alloc_check.h"
- namespace partition_alloc::internal {
- static constexpr size_t kCookieSize = 16;
- // Cookie is enabled for debug builds.
- #if BUILDFLAG(PA_DCHECK_IS_ON)
- static constexpr unsigned char kCookieValue[kCookieSize] = {
- 0xDE, 0xAD, 0xBE, 0xEF, 0xCA, 0xFE, 0xD0, 0x0D,
- 0x13, 0x37, 0xF0, 0x05, 0xBA, 0x11, 0xAB, 0x1E};
- constexpr size_t kPartitionCookieSizeAdjustment = kCookieSize;
- PA_ALWAYS_INLINE void PartitionCookieCheckValue(unsigned char* cookie_ptr) {
- for (size_t i = 0; i < kCookieSize; ++i, ++cookie_ptr)
- PA_DCHECK(*cookie_ptr == kCookieValue[i]);
- }
- PA_ALWAYS_INLINE void PartitionCookieWriteValue(unsigned char* cookie_ptr) {
- for (size_t i = 0; i < kCookieSize; ++i, ++cookie_ptr)
- *cookie_ptr = kCookieValue[i];
- }
- #else
- constexpr size_t kPartitionCookieSizeAdjustment = 0;
- PA_ALWAYS_INLINE void PartitionCookieCheckValue(unsigned char* address) {}
- PA_ALWAYS_INLINE void PartitionCookieWriteValue(unsigned char* cookie_ptr) {}
- #endif // BUILDFLAG(PA_DCHECK_IS_ON)
- } // namespace partition_alloc::internal
- #endif // BASE_ALLOCATOR_PARTITION_ALLOCATOR_PARTITION_COOKIE_H_
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