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/*
* Copyright (C) 2013-2023 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.
*/
#include "config.h"
#include "CodeBlockSet.h"
#include "CodeBlock.h"
#include "HeapInlines.h"
#include <wtf/CommaPrinter.h>
#include <wtf/TZoneMallocInlines.h>
namespace JSC {
WTF_MAKE_TZONE_ALLOCATED_IMPL(CodeBlockSet);
CodeBlockSet::CodeBlockSet() = default;
CodeBlockSet::~CodeBlockSet() = default;
bool CodeBlockSet::contains(const AbstractLocker&, void* candidateCodeBlock)
{
RELEASE_ASSERT(m_lock.isLocked());
CodeBlock* codeBlock = static_cast<CodeBlock*>(candidateCodeBlock);
if (!UncheckedKeyHashSet<CodeBlock*>::isValidValue(codeBlock))
return false;
return m_codeBlocks.contains(codeBlock);
}
void CodeBlockSet::clearCurrentlyExecutingAndRemoveDeadCodeBlocks(VM& vm)
{
ASSERT(vm.heap.isInPhase(CollectorPhase::End));
m_currentlyExecuting.clear();
m_codeBlocks.removeIf([&](CodeBlock* codeBlock) {
return !vm.heap.isMarked(codeBlock);
});
}
bool CodeBlockSet::isCurrentlyExecuting(CodeBlock* codeBlock)
{
return m_currentlyExecuting.contains(codeBlock);
}
void CodeBlockSet::dump(PrintStream& out) const
{
CommaPrinter comma;
out.print("{codeBlocks = ["_s);
for (CodeBlock* codeBlock : m_codeBlocks)
out.print(comma, pointerDump(codeBlock));
out.print("], currentlyExecuting = ["_s);
comma = CommaPrinter();
for (CodeBlock* codeBlock : m_currentlyExecuting)
out.print(comma, pointerDump(codeBlock));
out.print("]}"_s);
}
void CodeBlockSet::add(CodeBlock* codeBlock)
{
Locker locker { m_lock };
auto result = m_codeBlocks.add(codeBlock);
RELEASE_ASSERT(result);
}
void CodeBlockSet::remove(CodeBlock* codeBlock)
{
Locker locker { m_lock };
bool result = m_codeBlocks.remove(codeBlock);
RELEASE_ASSERT(result);
}
} // namespace JSC
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