96 lines
2.7 KiB
C++
96 lines
2.7 KiB
C++
/*
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* Copyright (C) 2021 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#if PLATFORM(MAC) || PLATFORM(IOS_FAMILY)
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// Probabilistic Guard Malloc is not really enabled on older platforms but opt those to system malloc too for consistency.
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#define HAVE_PROBABILISTIC_GUARD_MALLOC 1
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#endif
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namespace WTF {
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struct SystemMalloc {
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static void* malloc(size_t size)
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{
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auto* result = ::malloc(size);
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if (!result)
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CRASH();
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return result;
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}
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static void* tryMalloc(size_t size)
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{
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return ::malloc(size);
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}
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static void* zeroedMalloc(size_t size)
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{
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auto* result = ::malloc(size);
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if (!result)
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CRASH();
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memset(result, 0, size);
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return result;
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}
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static void* tryZeroedMalloc(size_t size)
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{
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auto* result = ::malloc(size);
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if (!result)
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return nullptr;
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memset(result, 0, size);
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return result;
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}
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static void* realloc(void* p, size_t size)
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{
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auto* result = ::realloc(p, size);
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if (!result)
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CRASH();
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return result;
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}
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static void* tryRealloc(void* p, size_t size)
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{
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return ::realloc(p, size);
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}
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static void free(void* p)
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{
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::free(p);
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}
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};
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#if HAVE(PROBABILISTIC_GUARD_MALLOC)
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using ProbabilisticGuardMalloc = SystemMalloc;
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#endif
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}
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using WTF::SystemMalloc;
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#if HAVE(PROBABILISTIC_GUARD_MALLOC)
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using WTF::ProbabilisticGuardMalloc;
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#endif
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