darling-JavaScriptCore/heap/CodeBlockSetInlines.h

84 lines
3.1 KiB
C++

/*
* Copyright (C) 2016-2018 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.
* 3. Neither the name of Apple Inc. ("Apple") nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "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 OR ITS 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 "CodeBlock.h"
#include "CodeBlockSet.h"
namespace JSC {
inline void CodeBlockSet::mark(const AbstractLocker&, CodeBlock* codeBlock)
{
if (!codeBlock)
return;
// Conservative root scanning in Eden collection can only find PreciseAllocation that is allocated in this Eden cycle.
// Since CodeBlockSet::m_currentlyExecuting is strongly assuming that this catches all the currently executing CodeBlock,
// we now have a restriction that all CodeBlock needs to be a non-precise-allocation.
ASSERT(!codeBlock->isPreciseAllocation());
m_currentlyExecuting.add(codeBlock);
}
template<typename Functor>
void CodeBlockSet::iterate(const Functor& functor)
{
auto locker = holdLock(m_lock);
iterate(locker, functor);
}
template<typename Functor>
void CodeBlockSet::iterate(const AbstractLocker&, const Functor& functor)
{
for (CodeBlock* codeBlock : m_codeBlocks)
functor(codeBlock);
}
template<typename Functor>
void CodeBlockSet::iterateViaSubspaces(VM& vm, const Functor& functor)
{
vm.forEachCodeBlockSpace(
[&] (auto& spaceAndSet) {
spaceAndSet.space.forEachLiveCell(
[&] (HeapCell* cell, HeapCell::Kind) {
functor(jsCast<CodeBlock*>(static_cast<JSCell*>(cell)));
});
});
}
template<typename Functor>
void CodeBlockSet::iterateCurrentlyExecuting(const Functor& functor)
{
LockHolder locker(&m_lock);
for (CodeBlock* codeBlock : m_currentlyExecuting)
functor(codeBlock);
}
} // namespace JSC