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/*
* Copyright (C) 2017 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include "BAssert.h"
#include "BInline.h"
#include "Gigacage.h"
namespace bmalloc {
enum class HeapKind {
Primary,
PrimitiveGigacage,
JSValueGigacage
};
static constexpr unsigned numHeaps = 3;
BINLINE bool isGigacage(HeapKind heapKind)
{
switch (heapKind) {
case HeapKind::Primary:
return false;
case HeapKind::PrimitiveGigacage:
case HeapKind::JSValueGigacage:
return true;
}
BCRASH();
return false;
}
BINLINE Gigacage::Kind gigacageKind(HeapKind kind)
{
switch (kind) {
case HeapKind::Primary:
BCRASH();
return Gigacage::Primitive;
case HeapKind::PrimitiveGigacage:
return Gigacage::Primitive;
case HeapKind::JSValueGigacage:
return Gigacage::JSValue;
}
BCRASH();
return Gigacage::Primitive;
}
BINLINE HeapKind heapKind(Gigacage::Kind kind)
{
switch (kind) {
case Gigacage::Primitive:
return HeapKind::PrimitiveGigacage;
case Gigacage::JSValue:
return HeapKind::JSValueGigacage;
}
BCRASH();
return HeapKind::Primary;
}
BINLINE bool isActiveHeapKindAfterEnsuringGigacage(HeapKind kind)
{
switch (kind) {
case HeapKind::PrimitiveGigacage:
case HeapKind::JSValueGigacage:
if (Gigacage::wasEnabled())
return true;
return false;
default:
return true;
}
}
BEXPORT bool isActiveHeapKind(HeapKind);
BINLINE HeapKind mapToActiveHeapKindAfterEnsuringGigacage(HeapKind kind)
{
switch (kind) {
case HeapKind::PrimitiveGigacage:
case HeapKind::JSValueGigacage:
if (Gigacage::wasEnabled())
return kind;
return HeapKind::Primary;
default:
return kind;
}
}
BEXPORT HeapKind mapToActiveHeapKind(HeapKind);
} // namespace bmalloc