mirror of
https://github.com/darlinghq/darling-bmalloc.git
synced 2024-11-23 12:29:43 +00:00
137 lines
4.2 KiB
C++
137 lines
4.2 KiB
C++
/*
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* Copyright (C) 2014-2018 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. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include "AvailableMemory.h"
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#include "Cache.h"
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#include "Gigacage.h"
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#include "Heap.h"
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#include "IsoTLS.h"
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#include "Mutex.h"
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#include "PerHeapKind.h"
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#include "Scavenger.h"
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namespace bmalloc {
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namespace api {
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// Returns null on failure.
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inline void* tryMalloc(size_t size, HeapKind kind = HeapKind::Primary)
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{
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return Cache::tryAllocate(kind, size);
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}
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// Crashes on failure.
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inline void* malloc(size_t size, HeapKind kind = HeapKind::Primary)
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{
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return Cache::allocate(kind, size);
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}
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BEXPORT void* mallocOutOfLine(size_t size, HeapKind kind = HeapKind::Primary);
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// Returns null on failure.
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inline void* tryMemalign(size_t alignment, size_t size, HeapKind kind = HeapKind::Primary)
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{
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return Cache::tryAllocate(kind, alignment, size);
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}
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// Crashes on failure.
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inline void* memalign(size_t alignment, size_t size, HeapKind kind = HeapKind::Primary)
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{
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return Cache::allocate(kind, alignment, size);
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}
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// Returns null on failure.
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inline void* tryRealloc(void* object, size_t newSize, HeapKind kind = HeapKind::Primary)
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{
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return Cache::tryReallocate(kind, object, newSize);
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}
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// Crashes on failure.
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inline void* realloc(void* object, size_t newSize, HeapKind kind = HeapKind::Primary)
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{
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return Cache::reallocate(kind, object, newSize);
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}
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// Returns null on failure.
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// This API will give you zeroed pages that are ready to be used. These pages
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// will page fault on first access. It returns to you memory that initially only
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// uses up virtual address space, not `size` bytes of physical memory.
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BEXPORT void* tryLargeZeroedMemalignVirtual(size_t alignment, size_t size, HeapKind kind = HeapKind::Primary);
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inline void free(void* object, HeapKind kind = HeapKind::Primary)
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{
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Cache::deallocate(kind, object);
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}
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BEXPORT void freeOutOfLine(void* object, HeapKind kind = HeapKind::Primary);
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BEXPORT void freeLargeVirtual(void* object, size_t, HeapKind kind = HeapKind::Primary);
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inline void scavengeThisThread()
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{
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for (unsigned i = numHeaps; i--;)
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Cache::scavenge(static_cast<HeapKind>(i));
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IsoTLS::scavenge();
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}
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BEXPORT void scavenge();
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BEXPORT bool isEnabled(HeapKind kind = HeapKind::Primary);
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// ptr must be aligned to vmPageSizePhysical and size must be divisible
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// by vmPageSizePhysical.
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BEXPORT void decommitAlignedPhysical(void* object, size_t, HeapKind = HeapKind::Primary);
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BEXPORT void commitAlignedPhysical(void* object, size_t, HeapKind = HeapKind::Primary);
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inline size_t availableMemory()
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{
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return bmalloc::availableMemory();
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}
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#if BPLATFORM(IOS_FAMILY) || BOS(LINUX) || BOS(FREEBSD)
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inline size_t memoryFootprint()
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{
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return bmalloc::memoryFootprint();
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}
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inline double percentAvailableMemoryInUse()
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{
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return bmalloc::percentAvailableMemoryInUse();
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}
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#endif
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#if BOS(DARWIN)
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BEXPORT void setScavengerThreadQOSClass(qos_class_t overrideClass);
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#endif
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BEXPORT void enableMiniMode();
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// Used for debugging only.
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BEXPORT void disableScavenger();
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} // namespace api
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} // namespace bmalloc
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