haikuwebkit/Source/WTF/wtf/MainThreadData.h

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[WTF] Add DataMutex and MainThreadData wrappers https://bugs.webkit.org/show_bug.cgi?id=199831 Reviewed by Alex Christensen. Source/WTF: This patch adds two new wrapper classes: DataMutex<T> stores an instance of T in a private member along with a mutex. In order to use its fields, users need to instantiate a DataMutex<T>::LockedWrapper instance in the stack. This class uses RAII to lock and unlock the mutex in construction and destruction respectively, and by using the arrow operator lets the user access T's members. This way, DataMutex<T> prevents most instances of accidental access to data fields that should only be read and modified in an atomic matter. Still, both the Lock and the LockHolder are exposed once the user has taken the lock so that special cases such as waiting for a condition variable or performing an early unlock are doable. MainThreadData<T> is another wrapper class, in this case for data fields that should only be accessed from the main thread. In this case, it works similar to a smart pointer, except that (1) there is no actual memory indirection, T is stored directly inside MainThreadData<T> and (2) attempts to use the -> or * operator have an isMainThread() assertion. Together, these two wrapper classes make it easier to write multi-threaded code in a safer, more self-documented way by letting the author group data into structures that have certain access safety requirements. These structures were originally part of the new GStreamer WebKitMediaSrc rework patch: https://bugs.webkit.org/show_bug.cgi?id=199719 * wtf/CMakeLists.txt: * wtf/DataMutex.h: Added. (WTF::DataMutex::DataMutex): (WTF::DataMutex::LockedWrapper::LockedWrapper): (WTF::DataMutex::LockedWrapper::operator->): (WTF::DataMutex::LockedWrapper::operator*): (WTF::DataMutex::LockedWrapper::mutex): (WTF::DataMutex::LockedWrapper::lockHolder): * wtf/MainThreadData.h: Added. (WTF::MainThreadData::MainThreadData): (WTF::MainThreadData::operator->): (WTF::MainThreadData::operator*): Tools: Added a very simple test that checks that DataMutex<T> indeed takes the lock and indeed holds data. * TestWebKitAPI/CMakeLists.txt: * TestWebKitAPI/Tests/WTF/DataMutex.cpp: Added. (TestWebKitAPI::TEST): Canonical link: https://commits.webkit.org/213882@main git-svn-id: https://svn.webkit.org/repository/webkit/trunk@247723 268f45cc-cd09-0410-ab3c-d52691b4dbfc
2019-07-23 14:51:29 +00:00
/*
* Copyright (C) 2019 Igalia, S.L.
* Copyright (C) 2019 Metrological Group B.V.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* aint with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#pragma once
#include <wtf/RunLoop.h>
#include <wtf/StdLibExtras.h>
namespace WTF {
template<typename T>
class MainThreadData {
[WTF][JSC] Make JSC and WTF aggressively-fast-malloced https://bugs.webkit.org/show_bug.cgi?id=200611 Reviewed by Saam Barati. Source/JavaScriptCore: This patch aggressively puts many classes into FastMalloc. In JSC side, we grep `std::make_unique` etc. to find potentially system-malloc-allocated classes. After this patch, all the JSC related allocations in JetStream2 cli is done from bmalloc. In the future, it would be nice that we add `WTF::makeUnique<T>` helper function and throw a compile error if `T` is not FastMalloc annotated[1]. Putting WebKit classes in FastMalloc has many benefits. 1. Simply, it is fast. 2. vmmap can tell the amount of memory used for WebKit. 3. bmalloc can isolate WebKit memory allocation from the rest of the world. This is useful since we can know more about what component is corrupting the memory from the memory corruption crash. [1]: https://bugs.webkit.org/show_bug.cgi?id=200620 * API/ObjCCallbackFunction.mm: * assembler/AbstractMacroAssembler.h: * b3/B3PhiChildren.h: * b3/air/AirAllocateRegistersAndStackAndGenerateCode.h: * b3/air/AirDisassembler.h: * bytecode/AccessCaseSnippetParams.h: * bytecode/CallVariant.h: * bytecode/DeferredSourceDump.h: * bytecode/ExecutionCounter.h: * bytecode/GetByIdStatus.h: * bytecode/GetByIdVariant.h: * bytecode/InByIdStatus.h: * bytecode/InByIdVariant.h: * bytecode/InstanceOfStatus.h: * bytecode/InstanceOfVariant.h: * bytecode/PutByIdStatus.h: * bytecode/PutByIdVariant.h: * bytecode/ValueProfile.h: * dfg/DFGAbstractInterpreter.h: * dfg/DFGByteCodeParser.cpp: (JSC::DFG::ByteCodeParser::newVariableAccessData): * dfg/DFGFlowIndexing.h: * dfg/DFGFlowMap.h: * dfg/DFGLiveCatchVariablePreservationPhase.cpp: (JSC::DFG::LiveCatchVariablePreservationPhase::newVariableAccessData): * dfg/DFGMaximalFlushInsertionPhase.cpp: (JSC::DFG::MaximalFlushInsertionPhase::newVariableAccessData): * dfg/DFGOSRExit.h: * dfg/DFGSpeculativeJIT.h: * dfg/DFGVariableAccessData.h: * disassembler/ARM64/A64DOpcode.h: * inspector/remote/socket/RemoteInspectorMessageParser.h: * inspector/remote/socket/RemoteInspectorSocket.h: * inspector/remote/socket/RemoteInspectorSocketEndpoint.h: * jit/PCToCodeOriginMap.h: * runtime/BasicBlockLocation.h: * runtime/DoublePredictionFuzzerAgent.h: * runtime/JSRunLoopTimer.h: * runtime/PromiseDeferredTimer.h: (JSC::PromiseDeferredTimer::create): PromiseDeferredTimer should be allocated as `Ref<>` instead of `std::unique_ptr` since it is inheriting ThreadSafeRefCounted<>. Holding such a class with std::unique_ptr could lead to potentially dangerous operations (like, someone holds it with Ref<> while it is deleted by std::unique_ptr<>). * runtime/RandomizingFuzzerAgent.h: * runtime/SymbolTable.h: * runtime/VM.cpp: (JSC::VM::VM): * runtime/VM.h: * tools/JSDollarVM.cpp: * tools/SigillCrashAnalyzer.cpp: * wasm/WasmFormat.h: * wasm/WasmMemory.cpp: * wasm/WasmSignature.h: * yarr/YarrJIT.h: Source/WebCore: Changed the accessor since we changed std::unique_ptr to Ref for this field. No behavior change. * bindings/js/WorkerScriptController.cpp: (WebCore::WorkerScriptController::addTimerSetNotification): (WebCore::WorkerScriptController::removeTimerSetNotification): Source/WTF: WTF has many data structures, in particular, containers. And these containers can be allocated like `std::make_unique<Container>()`. Without WTF_MAKE_FAST_ALLOCATED, this container itself is allocated from the system malloc. This patch attaches WTF_MAKE_FAST_ALLOCATED more aggressively not to allocate them from the system malloc. And we add some `final` to containers and classes that would be never inherited. * wtf/Assertions.cpp: * wtf/Atomics.h: * wtf/AutodrainedPool.h: * wtf/Bag.h: (WTF::Bag::Bag): Deleted. (WTF::Bag::~Bag): Deleted. (WTF::Bag::clear): Deleted. (WTF::Bag::add): Deleted. (WTF::Bag::iterator::iterator): Deleted. (WTF::Bag::iterator::operator! const): Deleted. (WTF::Bag::iterator::operator* const): Deleted. (WTF::Bag::iterator::operator++): Deleted. (WTF::Bag::iterator::operator== const): Deleted. (WTF::Bag::iterator::operator!= const): Deleted. (WTF::Bag::begin): Deleted. (WTF::Bag::begin const): Deleted. (WTF::Bag::end const): Deleted. (WTF::Bag::isEmpty const): Deleted. (WTF::Bag::unwrappedHead const): Deleted. * wtf/BitVector.h: (WTF::BitVector::BitVector): Deleted. (WTF::BitVector::~BitVector): Deleted. (WTF::BitVector::operator=): Deleted. (WTF::BitVector::size const): Deleted. (WTF::BitVector::ensureSize): Deleted. (WTF::BitVector::quickGet const): Deleted. (WTF::BitVector::quickSet): Deleted. (WTF::BitVector::quickClear): Deleted. (WTF::BitVector::get const): Deleted. (WTF::BitVector::contains const): Deleted. (WTF::BitVector::set): Deleted. (WTF::BitVector::add): Deleted. (WTF::BitVector::ensureSizeAndSet): Deleted. (WTF::BitVector::clear): Deleted. (WTF::BitVector::remove): Deleted. (WTF::BitVector::merge): Deleted. (WTF::BitVector::filter): Deleted. (WTF::BitVector::exclude): Deleted. (WTF::BitVector::bitCount const): Deleted. (WTF::BitVector::isEmpty const): Deleted. (WTF::BitVector::findBit const): Deleted. (WTF::BitVector::isEmptyValue const): Deleted. (WTF::BitVector::isDeletedValue const): Deleted. (WTF::BitVector::isEmptyOrDeletedValue const): Deleted. (WTF::BitVector::operator== const): Deleted. (WTF::BitVector::hash const): Deleted. (WTF::BitVector::iterator::iterator): Deleted. (WTF::BitVector::iterator::operator* const): Deleted. (WTF::BitVector::iterator::operator++): Deleted. (WTF::BitVector::iterator::isAtEnd const): Deleted. (WTF::BitVector::iterator::operator== const): Deleted. (WTF::BitVector::iterator::operator!= const): Deleted. (WTF::BitVector::begin const): Deleted. (WTF::BitVector::end const): Deleted. (WTF::BitVector::bitsInPointer): Deleted. (WTF::BitVector::maxInlineBits): Deleted. (WTF::BitVector::byteCount): Deleted. (WTF::BitVector::makeInlineBits): Deleted. (WTF::BitVector::cleanseInlineBits): Deleted. (WTF::BitVector::bitCount): Deleted. (WTF::BitVector::findBitFast const): Deleted. (WTF::BitVector::findBitSimple const): Deleted. (WTF::BitVector::OutOfLineBits::numBits const): Deleted. (WTF::BitVector::OutOfLineBits::numWords const): Deleted. (WTF::BitVector::OutOfLineBits::bits): Deleted. (WTF::BitVector::OutOfLineBits::bits const): Deleted. (WTF::BitVector::OutOfLineBits::OutOfLineBits): Deleted. (WTF::BitVector::isInline const): Deleted. (WTF::BitVector::outOfLineBits const): Deleted. (WTF::BitVector::outOfLineBits): Deleted. (WTF::BitVector::bits): Deleted. (WTF::BitVector::bits const): Deleted. * wtf/Bitmap.h: (WTF::Bitmap::size): Deleted. (WTF::Bitmap::iterator::iterator): Deleted. (WTF::Bitmap::iterator::operator* const): Deleted. (WTF::Bitmap::iterator::operator++): Deleted. (WTF::Bitmap::iterator::operator== const): Deleted. (WTF::Bitmap::iterator::operator!= const): Deleted. (WTF::Bitmap::begin const): Deleted. (WTF::Bitmap::end const): Deleted. * wtf/Box.h: * wtf/BumpPointerAllocator.h: * wtf/CPUTime.h: * wtf/CheckedBoolean.h: * wtf/CommaPrinter.h: (WTF::CommaPrinter::CommaPrinter): Deleted. (WTF::CommaPrinter::dump const): Deleted. (WTF::CommaPrinter::didPrint const): Deleted. * wtf/CompactPointerTuple.h: (WTF::CompactPointerTuple::encodeType): Deleted. (WTF::CompactPointerTuple::decodeType): Deleted. (WTF::CompactPointerTuple::CompactPointerTuple): Deleted. (WTF::CompactPointerTuple::pointer const): Deleted. (WTF::CompactPointerTuple::setPointer): Deleted. (WTF::CompactPointerTuple::type const): Deleted. (WTF::CompactPointerTuple::setType): Deleted. * wtf/CompilationThread.h: (WTF::CompilationScope::CompilationScope): Deleted. (WTF::CompilationScope::~CompilationScope): Deleted. (WTF::CompilationScope::leaveEarly): Deleted. * wtf/CompletionHandler.h: (WTF::CompletionHandler<Out): (WTF::Detail::CallableWrapper<CompletionHandler<Out): (WTF::CompletionHandlerCallingScope::CompletionHandlerCallingScope): Deleted. (WTF::CompletionHandlerCallingScope::~CompletionHandlerCallingScope): Deleted. (WTF::CompletionHandlerCallingScope::CompletionHandler<void): Deleted. * wtf/ConcurrentBuffer.h: (WTF::ConcurrentBuffer::ConcurrentBuffer): Deleted. (WTF::ConcurrentBuffer::~ConcurrentBuffer): Deleted. (WTF::ConcurrentBuffer::growExact): Deleted. (WTF::ConcurrentBuffer::grow): Deleted. (WTF::ConcurrentBuffer::array const): Deleted. (WTF::ConcurrentBuffer::operator[]): Deleted. (WTF::ConcurrentBuffer::operator[] const): Deleted. (WTF::ConcurrentBuffer::createArray): Deleted. * wtf/ConcurrentPtrHashSet.h: (WTF::ConcurrentPtrHashSet::contains): Deleted. (WTF::ConcurrentPtrHashSet::add): Deleted. (WTF::ConcurrentPtrHashSet::size const): Deleted. (WTF::ConcurrentPtrHashSet::Table::maxLoad const): Deleted. (WTF::ConcurrentPtrHashSet::hash): Deleted. (WTF::ConcurrentPtrHashSet::cast): Deleted. (WTF::ConcurrentPtrHashSet::containsImpl const): Deleted. (WTF::ConcurrentPtrHashSet::addImpl): Deleted. * wtf/ConcurrentVector.h: (WTF::ConcurrentVector::~ConcurrentVector): Deleted. (WTF::ConcurrentVector::size const): Deleted. (WTF::ConcurrentVector::isEmpty const): Deleted. (WTF::ConcurrentVector::at): Deleted. (WTF::ConcurrentVector::at const): Deleted. (WTF::ConcurrentVector::operator[]): Deleted. (WTF::ConcurrentVector::operator[] const): Deleted. (WTF::ConcurrentVector::first): Deleted. (WTF::ConcurrentVector::first const): Deleted. (WTF::ConcurrentVector::last): Deleted. (WTF::ConcurrentVector::last const): Deleted. (WTF::ConcurrentVector::takeLast): Deleted. (WTF::ConcurrentVector::append): Deleted. (WTF::ConcurrentVector::alloc): Deleted. (WTF::ConcurrentVector::removeLast): Deleted. (WTF::ConcurrentVector::grow): Deleted. (WTF::ConcurrentVector::begin): Deleted. (WTF::ConcurrentVector::end): Deleted. (WTF::ConcurrentVector::segmentExistsFor): Deleted. (WTF::ConcurrentVector::segmentFor): Deleted. (WTF::ConcurrentVector::subscriptFor): Deleted. (WTF::ConcurrentVector::ensureSegmentsFor): Deleted. (WTF::ConcurrentVector::ensureSegment): Deleted. (WTF::ConcurrentVector::allocateSegment): Deleted. * wtf/Condition.h: (WTF::Condition::waitUntil): Deleted. (WTF::Condition::waitFor): Deleted. (WTF::Condition::wait): Deleted. (WTF::Condition::notifyOne): Deleted. (WTF::Condition::notifyAll): Deleted. * wtf/CountingLock.h: (WTF::CountingLock::LockHooks::lockHook): Deleted. (WTF::CountingLock::LockHooks::unlockHook): Deleted. (WTF::CountingLock::LockHooks::parkHook): Deleted. (WTF::CountingLock::LockHooks::handoffHook): Deleted. (WTF::CountingLock::tryLock): Deleted. (WTF::CountingLock::lock): Deleted. (WTF::CountingLock::unlock): Deleted. (WTF::CountingLock::isHeld const): Deleted. (WTF::CountingLock::isLocked const): Deleted. (WTF::CountingLock::Count::operator bool const): Deleted. (WTF::CountingLock::Count::operator== const): Deleted. (WTF::CountingLock::Count::operator!= const): Deleted. (WTF::CountingLock::tryOptimisticRead): Deleted. (WTF::CountingLock::validate): Deleted. (WTF::CountingLock::doOptimizedRead): Deleted. (WTF::CountingLock::tryOptimisticFencelessRead): Deleted. (WTF::CountingLock::fencelessValidate): Deleted. (WTF::CountingLock::doOptimizedFencelessRead): Deleted. (WTF::CountingLock::getCount): Deleted. * wtf/CrossThreadQueue.h: * wtf/CrossThreadTask.h: * wtf/CryptographicallyRandomNumber.cpp: * wtf/DataMutex.h: * wtf/DateMath.h: * wtf/Deque.h: (WTF::Deque::size const): Deleted. (WTF::Deque::isEmpty const): Deleted. (WTF::Deque::begin): Deleted. (WTF::Deque::end): Deleted. (WTF::Deque::begin const): Deleted. (WTF::Deque::end const): Deleted. (WTF::Deque::rbegin): Deleted. (WTF::Deque::rend): Deleted. (WTF::Deque::rbegin const): Deleted. (WTF::Deque::rend const): Deleted. (WTF::Deque::first): Deleted. (WTF::Deque::first const): Deleted. (WTF::Deque::last): Deleted. (WTF::Deque::last const): Deleted. (WTF::Deque::append): Deleted. * wtf/Dominators.h: * wtf/DoublyLinkedList.h: * wtf/Expected.h: * wtf/FastBitVector.h: * wtf/FileMetadata.h: * wtf/FileSystem.h: * wtf/GraphNodeWorklist.h: * wtf/GregorianDateTime.h: (WTF::GregorianDateTime::GregorianDateTime): Deleted. (WTF::GregorianDateTime::year const): Deleted. (WTF::GregorianDateTime::month const): Deleted. (WTF::GregorianDateTime::yearDay const): Deleted. (WTF::GregorianDateTime::monthDay const): Deleted. (WTF::GregorianDateTime::weekDay const): Deleted. (WTF::GregorianDateTime::hour const): Deleted. (WTF::GregorianDateTime::minute const): Deleted. (WTF::GregorianDateTime::second const): Deleted. (WTF::GregorianDateTime::utcOffset const): Deleted. (WTF::GregorianDateTime::isDST const): Deleted. (WTF::GregorianDateTime::setYear): Deleted. (WTF::GregorianDateTime::setMonth): Deleted. (WTF::GregorianDateTime::setYearDay): Deleted. (WTF::GregorianDateTime::setMonthDay): Deleted. (WTF::GregorianDateTime::setWeekDay): Deleted. (WTF::GregorianDateTime::setHour): Deleted. (WTF::GregorianDateTime::setMinute): Deleted. (WTF::GregorianDateTime::setSecond): Deleted. (WTF::GregorianDateTime::setUtcOffset): Deleted. (WTF::GregorianDateTime::setIsDST): Deleted. (WTF::GregorianDateTime::operator tm const): Deleted. (WTF::GregorianDateTime::copyFrom): Deleted. * wtf/HashTable.h: * wtf/Hasher.h: * wtf/HexNumber.h: * wtf/Indenter.h: * wtf/IndexMap.h: * wtf/IndexSet.h: * wtf/IndexSparseSet.h: * wtf/IndexedContainerIterator.h: * wtf/Insertion.h: * wtf/IteratorAdaptors.h: * wtf/IteratorRange.h: * wtf/KeyValuePair.h: * wtf/ListHashSet.h: (WTF::ListHashSet::begin): Deleted. (WTF::ListHashSet::end): Deleted. (WTF::ListHashSet::begin const): Deleted. (WTF::ListHashSet::end const): Deleted. (WTF::ListHashSet::random): Deleted. (WTF::ListHashSet::random const): Deleted. (WTF::ListHashSet::rbegin): Deleted. (WTF::ListHashSet::rend): Deleted. (WTF::ListHashSet::rbegin const): Deleted. (WTF::ListHashSet::rend const): Deleted. * wtf/Liveness.h: * wtf/LocklessBag.h: (WTF::LocklessBag::LocklessBag): Deleted. (WTF::LocklessBag::add): Deleted. (WTF::LocklessBag::iterate): Deleted. (WTF::LocklessBag::consumeAll): Deleted. (WTF::LocklessBag::consumeAllWithNode): Deleted. (WTF::LocklessBag::~LocklessBag): Deleted. * wtf/LoggingHashID.h: * wtf/MD5.h: * wtf/MachSendRight.h: * wtf/MainThreadData.h: * wtf/Markable.h: * wtf/MediaTime.h: * wtf/MemoryPressureHandler.h: * wtf/MessageQueue.h: (WTF::MessageQueue::MessageQueue): Deleted. * wtf/MetaAllocator.h: * wtf/MonotonicTime.h: (WTF::MonotonicTime::MonotonicTime): Deleted. (WTF::MonotonicTime::fromRawSeconds): Deleted. (WTF::MonotonicTime::infinity): Deleted. (WTF::MonotonicTime::nan): Deleted. (WTF::MonotonicTime::secondsSinceEpoch const): Deleted. (WTF::MonotonicTime::approximateMonotonicTime const): Deleted. (WTF::MonotonicTime::operator bool const): Deleted. (WTF::MonotonicTime::operator+ const): Deleted. (WTF::MonotonicTime::operator- const): Deleted. (WTF::MonotonicTime::operator% const): Deleted. (WTF::MonotonicTime::operator+=): Deleted. (WTF::MonotonicTime::operator-=): Deleted. (WTF::MonotonicTime::operator== const): Deleted. (WTF::MonotonicTime::operator!= const): Deleted. (WTF::MonotonicTime::operator< const): Deleted. (WTF::MonotonicTime::operator> const): Deleted. (WTF::MonotonicTime::operator<= const): Deleted. (WTF::MonotonicTime::operator>= const): Deleted. (WTF::MonotonicTime::isolatedCopy const): Deleted. (WTF::MonotonicTime::encode const): Deleted. (WTF::MonotonicTime::decode): Deleted. * wtf/NaturalLoops.h: * wtf/NoLock.h: * wtf/OSAllocator.h: * wtf/OptionSet.h: * wtf/Optional.h: * wtf/OrderMaker.h: * wtf/Packed.h: (WTF::alignof): * wtf/PackedIntVector.h: (WTF::PackedIntVector::PackedIntVector): Deleted. (WTF::PackedIntVector::operator=): Deleted. (WTF::PackedIntVector::size const): Deleted. (WTF::PackedIntVector::ensureSize): Deleted. (WTF::PackedIntVector::resize): Deleted. (WTF::PackedIntVector::clearAll): Deleted. (WTF::PackedIntVector::get const): Deleted. (WTF::PackedIntVector::set): Deleted. (WTF::PackedIntVector::mask): Deleted. * wtf/PageBlock.h: * wtf/ParallelJobsOpenMP.h: * wtf/ParkingLot.h: * wtf/PriorityQueue.h: (WTF::PriorityQueue::size const): Deleted. (WTF::PriorityQueue::isEmpty const): Deleted. (WTF::PriorityQueue::enqueue): Deleted. (WTF::PriorityQueue::peek const): Deleted. (WTF::PriorityQueue::dequeue): Deleted. (WTF::PriorityQueue::decreaseKey): Deleted. (WTF::PriorityQueue::increaseKey): Deleted. (WTF::PriorityQueue::begin const): Deleted. (WTF::PriorityQueue::end const): Deleted. (WTF::PriorityQueue::isValidHeap const): Deleted. (WTF::PriorityQueue::parentOf): Deleted. (WTF::PriorityQueue::leftChildOf): Deleted. (WTF::PriorityQueue::rightChildOf): Deleted. (WTF::PriorityQueue::siftUp): Deleted. (WTF::PriorityQueue::siftDown): Deleted. * wtf/RandomDevice.h: * wtf/Range.h: * wtf/RangeSet.h: (WTF::RangeSet::RangeSet): Deleted. (WTF::RangeSet::~RangeSet): Deleted. (WTF::RangeSet::add): Deleted. (WTF::RangeSet::contains const): Deleted. (WTF::RangeSet::overlaps const): Deleted. (WTF::RangeSet::clear): Deleted. (WTF::RangeSet::dump const): Deleted. (WTF::RangeSet::dumpRaw const): Deleted. (WTF::RangeSet::begin const): Deleted. (WTF::RangeSet::end const): Deleted. (WTF::RangeSet::addAll): Deleted. (WTF::RangeSet::compact): Deleted. (WTF::RangeSet::overlapsNonEmpty): Deleted. (WTF::RangeSet::subsumesNonEmpty): Deleted. (WTF::RangeSet::findRange const): Deleted. * wtf/RecursableLambda.h: * wtf/RedBlackTree.h: (WTF::RedBlackTree::Node::successor const): Deleted. (WTF::RedBlackTree::Node::predecessor const): Deleted. (WTF::RedBlackTree::Node::successor): Deleted. (WTF::RedBlackTree::Node::predecessor): Deleted. (WTF::RedBlackTree::Node::reset): Deleted. (WTF::RedBlackTree::Node::parent const): Deleted. (WTF::RedBlackTree::Node::setParent): Deleted. (WTF::RedBlackTree::Node::left const): Deleted. (WTF::RedBlackTree::Node::setLeft): Deleted. (WTF::RedBlackTree::Node::right const): Deleted. (WTF::RedBlackTree::Node::setRight): Deleted. (WTF::RedBlackTree::Node::color const): Deleted. (WTF::RedBlackTree::Node::setColor): Deleted. (WTF::RedBlackTree::RedBlackTree): Deleted. (WTF::RedBlackTree::insert): Deleted. (WTF::RedBlackTree::remove): Deleted. (WTF::RedBlackTree::findExact const): Deleted. (WTF::RedBlackTree::findLeastGreaterThanOrEqual const): Deleted. (WTF::RedBlackTree::findGreatestLessThanOrEqual const): Deleted. (WTF::RedBlackTree::first const): Deleted. (WTF::RedBlackTree::last const): Deleted. (WTF::RedBlackTree::size): Deleted. (WTF::RedBlackTree::isEmpty): Deleted. (WTF::RedBlackTree::treeMinimum): Deleted. (WTF::RedBlackTree::treeMaximum): Deleted. (WTF::RedBlackTree::treeInsert): Deleted. (WTF::RedBlackTree::leftRotate): Deleted. (WTF::RedBlackTree::rightRotate): Deleted. (WTF::RedBlackTree::removeFixup): Deleted. * wtf/ResourceUsage.h: * wtf/RunLoop.cpp: * wtf/RunLoopTimer.h: * wtf/SHA1.h: * wtf/Seconds.h: (WTF::Seconds::Seconds): Deleted. (WTF::Seconds::value const): Deleted. (WTF::Seconds::minutes const): Deleted. (WTF::Seconds::seconds const): Deleted. (WTF::Seconds::milliseconds const): Deleted. (WTF::Seconds::microseconds const): Deleted. (WTF::Seconds::nanoseconds const): Deleted. (WTF::Seconds::minutesAs const): Deleted. (WTF::Seconds::secondsAs const): Deleted. (WTF::Seconds::millisecondsAs const): Deleted. (WTF::Seconds::microsecondsAs const): Deleted. (WTF::Seconds::nanosecondsAs const): Deleted. (WTF::Seconds::fromMinutes): Deleted. (WTF::Seconds::fromHours): Deleted. (WTF::Seconds::fromMilliseconds): Deleted. (WTF::Seconds::fromMicroseconds): Deleted. (WTF::Seconds::fromNanoseconds): Deleted. (WTF::Seconds::infinity): Deleted. (WTF::Seconds::nan): Deleted. (WTF::Seconds::operator bool const): Deleted. (WTF::Seconds::operator+ const): Deleted. (WTF::Seconds::operator- const): Deleted. (WTF::Seconds::operator* const): Deleted. (WTF::Seconds::operator/ const): Deleted. (WTF::Seconds::operator% const): Deleted. (WTF::Seconds::operator+=): Deleted. (WTF::Seconds::operator-=): Deleted. (WTF::Seconds::operator*=): Deleted. (WTF::Seconds::operator/=): Deleted. (WTF::Seconds::operator%=): Deleted. (WTF::Seconds::operator== const): Deleted. (WTF::Seconds::operator!= const): Deleted. (WTF::Seconds::operator< const): Deleted. (WTF::Seconds::operator> const): Deleted. (WTF::Seconds::operator<= const): Deleted. (WTF::Seconds::operator>= const): Deleted. (WTF::Seconds::isolatedCopy const): Deleted. (WTF::Seconds::encode const): Deleted. (WTF::Seconds::decode): Deleted. * wtf/SegmentedVector.h: (WTF::SegmentedVector::~SegmentedVector): Deleted. (WTF::SegmentedVector::size const): Deleted. (WTF::SegmentedVector::isEmpty const): Deleted. (WTF::SegmentedVector::at): Deleted. (WTF::SegmentedVector::at const): Deleted. (WTF::SegmentedVector::operator[]): Deleted. (WTF::SegmentedVector::operator[] const): Deleted. (WTF::SegmentedVector::first): Deleted. (WTF::SegmentedVector::first const): Deleted. (WTF::SegmentedVector::last): Deleted. (WTF::SegmentedVector::last const): Deleted. (WTF::SegmentedVector::takeLast): Deleted. (WTF::SegmentedVector::append): Deleted. (WTF::SegmentedVector::alloc): Deleted. (WTF::SegmentedVector::removeLast): Deleted. (WTF::SegmentedVector::grow): Deleted. (WTF::SegmentedVector::clear): Deleted. (WTF::SegmentedVector::begin): Deleted. (WTF::SegmentedVector::end): Deleted. (WTF::SegmentedVector::shrinkToFit): Deleted. (WTF::SegmentedVector::deleteAllSegments): Deleted. (WTF::SegmentedVector::segmentExistsFor): Deleted. (WTF::SegmentedVector::segmentFor): Deleted. (WTF::SegmentedVector::subscriptFor): Deleted. (WTF::SegmentedVector::ensureSegmentsFor): Deleted. (WTF::SegmentedVector::ensureSegment): Deleted. (WTF::SegmentedVector::allocateSegment): Deleted. * wtf/SetForScope.h: * wtf/SingleRootGraph.h: * wtf/SinglyLinkedList.h: * wtf/SmallPtrSet.h: * wtf/SpanningTree.h: * wtf/Spectrum.h: * wtf/StackBounds.h: * wtf/StackShot.h: * wtf/StackShotProfiler.h: * wtf/StackStats.h: * wtf/StackTrace.h: * wtf/StreamBuffer.h: * wtf/SynchronizedFixedQueue.h: (WTF::SynchronizedFixedQueue::create): Deleted. (WTF::SynchronizedFixedQueue::open): Deleted. (WTF::SynchronizedFixedQueue::close): Deleted. (WTF::SynchronizedFixedQueue::isOpen): Deleted. (WTF::SynchronizedFixedQueue::enqueue): Deleted. (WTF::SynchronizedFixedQueue::dequeue): Deleted. (WTF::SynchronizedFixedQueue::SynchronizedFixedQueue): Deleted. * wtf/SystemTracing.h: * wtf/ThreadGroup.h: (WTF::ThreadGroup::create): Deleted. (WTF::ThreadGroup::threads const): Deleted. (WTF::ThreadGroup::getLock): Deleted. (WTF::ThreadGroup::weakFromThis): Deleted. * wtf/ThreadSpecific.h: * wtf/ThreadingPrimitives.h: (WTF::Mutex::impl): Deleted. * wtf/TimeWithDynamicClockType.h: (WTF::TimeWithDynamicClockType::TimeWithDynamicClockType): Deleted. (WTF::TimeWithDynamicClockType::fromRawSeconds): Deleted. (WTF::TimeWithDynamicClockType::secondsSinceEpoch const): Deleted. (WTF::TimeWithDynamicClockType::clockType const): Deleted. (WTF::TimeWithDynamicClockType::withSameClockAndRawSeconds const): Deleted. (WTF::TimeWithDynamicClockType::operator bool const): Deleted. (WTF::TimeWithDynamicClockType::operator+ const): Deleted. (WTF::TimeWithDynamicClockType::operator- const): Deleted. (WTF::TimeWithDynamicClockType::operator+=): Deleted. (WTF::TimeWithDynamicClockType::operator-=): Deleted. (WTF::TimeWithDynamicClockType::operator== const): Deleted. (WTF::TimeWithDynamicClockType::operator!= const): Deleted. * wtf/TimingScope.h: * wtf/TinyLRUCache.h: * wtf/TinyPtrSet.h: * wtf/URLParser.cpp: * wtf/URLParser.h: * wtf/Unexpected.h: * wtf/Variant.h: * wtf/WTFSemaphore.h: (WTF::Semaphore::Semaphore): Deleted. (WTF::Semaphore::signal): Deleted. (WTF::Semaphore::waitUntil): Deleted. (WTF::Semaphore::waitFor): Deleted. (WTF::Semaphore::wait): Deleted. * wtf/WallTime.h: (WTF::WallTime::WallTime): Deleted. (WTF::WallTime::fromRawSeconds): Deleted. (WTF::WallTime::infinity): Deleted. (WTF::WallTime::nan): Deleted. (WTF::WallTime::secondsSinceEpoch const): Deleted. (WTF::WallTime::approximateWallTime const): Deleted. (WTF::WallTime::operator bool const): Deleted. (WTF::WallTime::operator+ const): Deleted. (WTF::WallTime::operator- const): Deleted. (WTF::WallTime::operator+=): Deleted. (WTF::WallTime::operator-=): Deleted. (WTF::WallTime::operator== const): Deleted. (WTF::WallTime::operator!= const): Deleted. (WTF::WallTime::operator< const): Deleted. (WTF::WallTime::operator> const): Deleted. (WTF::WallTime::operator<= const): Deleted. (WTF::WallTime::operator>= const): Deleted. (WTF::WallTime::isolatedCopy const): Deleted. * wtf/WeakHashSet.h: (WTF::WeakHashSet::WeakHashSetConstIterator::WeakHashSetConstIterator): Deleted. (WTF::WeakHashSet::WeakHashSetConstIterator::get const): Deleted. (WTF::WeakHashSet::WeakHashSetConstIterator::operator* const): Deleted. (WTF::WeakHashSet::WeakHashSetConstIterator::operator-> const): Deleted. (WTF::WeakHashSet::WeakHashSetConstIterator::operator++): Deleted. (WTF::WeakHashSet::WeakHashSetConstIterator::skipEmptyBuckets): Deleted. (WTF::WeakHashSet::WeakHashSetConstIterator::operator== const): Deleted. (WTF::WeakHashSet::WeakHashSetConstIterator::operator!= const): Deleted. (WTF::WeakHashSet::WeakHashSet): Deleted. (WTF::WeakHashSet::begin const): Deleted. (WTF::WeakHashSet::end const): Deleted. (WTF::WeakHashSet::add): Deleted. (WTF::WeakHashSet::remove): Deleted. (WTF::WeakHashSet::contains const): Deleted. (WTF::WeakHashSet::capacity const): Deleted. (WTF::WeakHashSet::computesEmpty const): Deleted. (WTF::WeakHashSet::hasNullReferences const): Deleted. (WTF::WeakHashSet::computeSize const): Deleted. (WTF::WeakHashSet::checkConsistency const): Deleted. * wtf/WeakRandom.h: (WTF::WeakRandom::WeakRandom): Deleted. (WTF::WeakRandom::setSeed): Deleted. (WTF::WeakRandom::seed const): Deleted. (WTF::WeakRandom::get): Deleted. (WTF::WeakRandom::getUint32): Deleted. (WTF::WeakRandom::lowOffset): Deleted. (WTF::WeakRandom::highOffset): Deleted. (WTF::WeakRandom::nextState): Deleted. (WTF::WeakRandom::generate): Deleted. (WTF::WeakRandom::advance): Deleted. * wtf/WordLock.h: (WTF::WordLock::lock): Deleted. (WTF::WordLock::unlock): Deleted. (WTF::WordLock::isHeld const): Deleted. (WTF::WordLock::isLocked const): Deleted. (WTF::WordLock::isFullyReset const): Deleted. * wtf/generic/MainThreadGeneric.cpp: * wtf/glib/GMutexLocker.h: * wtf/linux/CurrentProcessMemoryStatus.h: * wtf/posix/ThreadingPOSIX.cpp: (WTF::Semaphore::Semaphore): Deleted. (WTF::Semaphore::~Semaphore): Deleted. (WTF::Semaphore::wait): Deleted. (WTF::Semaphore::post): Deleted. * wtf/text/ASCIILiteral.h: (WTF::ASCIILiteral::operator const char* const): Deleted. (WTF::ASCIILiteral::fromLiteralUnsafe): Deleted. (WTF::ASCIILiteral::null): Deleted. (WTF::ASCIILiteral::characters const): Deleted. (WTF::ASCIILiteral::ASCIILiteral): Deleted. * wtf/text/AtomString.h: (WTF::AtomString::operator=): Deleted. (WTF::AtomString::isHashTableDeletedValue const): Deleted. (WTF::AtomString::existingHash const): Deleted. (WTF::AtomString::operator const String& const): Deleted. (WTF::AtomString::string const): Deleted. (WTF::AtomString::impl const): Deleted. (WTF::AtomString::is8Bit const): Deleted. (WTF::AtomString::characters8 const): Deleted. (WTF::AtomString::characters16 const): Deleted. (WTF::AtomString::length const): Deleted. (WTF::AtomString::operator[] const): Deleted. (WTF::AtomString::contains const): Deleted. (WTF::AtomString::containsIgnoringASCIICase const): Deleted. (WTF::AtomString::find const): Deleted. (WTF::AtomString::findIgnoringASCIICase const): Deleted. (WTF::AtomString::startsWith const): Deleted. (WTF::AtomString::startsWithIgnoringASCIICase const): Deleted. (WTF::AtomString::endsWith const): Deleted. (WTF::AtomString::endsWithIgnoringASCIICase const): Deleted. (WTF::AtomString::toInt const): Deleted. (WTF::AtomString::toDouble const): Deleted. (WTF::AtomString::toFloat const): Deleted. (WTF::AtomString::percentage const): Deleted. (WTF::AtomString::isNull const): Deleted. (WTF::AtomString::isEmpty const): Deleted. (WTF::AtomString::operator NSString * const): Deleted. * wtf/text/AtomStringImpl.h: (WTF::AtomStringImpl::lookUp): Deleted. (WTF::AtomStringImpl::add): Deleted. (WTF::AtomStringImpl::addWithStringTableProvider): Deleted. * wtf/text/CString.h: (WTF::CStringBuffer::data): Deleted. (WTF::CStringBuffer::length const): Deleted. (WTF::CStringBuffer::CStringBuffer): Deleted. (WTF::CStringBuffer::mutableData): Deleted. (WTF::CString::CString): Deleted. (WTF::CString::data const): Deleted. (WTF::CString::length const): Deleted. (WTF::CString::isNull const): Deleted. (WTF::CString::buffer const): Deleted. (WTF::CString::isHashTableDeletedValue const): Deleted. * wtf/text/ExternalStringImpl.h: (WTF::ExternalStringImpl::freeExternalBuffer): Deleted. * wtf/text/LineBreakIteratorPoolICU.h: * wtf/text/NullTextBreakIterator.h: * wtf/text/OrdinalNumber.h: * wtf/text/StringBuffer.h: * wtf/text/StringBuilder.h: * wtf/text/StringConcatenateNumbers.h: * wtf/text/StringHasher.h: * wtf/text/StringImpl.h: * wtf/text/StringView.cpp: * wtf/text/StringView.h: (WTF::StringView::left const): Deleted. (WTF::StringView::right const): Deleted. (WTF::StringView::underlyingStringIsValid const): Deleted. (WTF::StringView::setUnderlyingString): Deleted. * wtf/text/SymbolImpl.h: (WTF::SymbolImpl::StaticSymbolImpl::StaticSymbolImpl): Deleted. (WTF::SymbolImpl::StaticSymbolImpl::operator SymbolImpl&): Deleted. (WTF::PrivateSymbolImpl::PrivateSymbolImpl): Deleted. (WTF::RegisteredSymbolImpl::symbolRegistry const): Deleted. (WTF::RegisteredSymbolImpl::clearSymbolRegistry): Deleted. (WTF::RegisteredSymbolImpl::RegisteredSymbolImpl): Deleted. * wtf/text/SymbolRegistry.h: * wtf/text/TextBreakIterator.h: * wtf/text/TextPosition.h: * wtf/text/TextStream.h: * wtf/text/WTFString.h: (WTF::String::swap): Deleted. (WTF::String::adopt): Deleted. (WTF::String::isNull const): Deleted. (WTF::String::isEmpty const): Deleted. (WTF::String::impl const): Deleted. (WTF::String::releaseImpl): Deleted. (WTF::String::length const): Deleted. (WTF::String::characters8 const): Deleted. (WTF::String::characters16 const): Deleted. (WTF::String::is8Bit const): Deleted. (WTF::String::sizeInBytes const): Deleted. (WTF::String::operator[] const): Deleted. (WTF::String::find const): Deleted. (WTF::String::findIgnoringASCIICase const): Deleted. (WTF::String::reverseFind const): Deleted. (WTF::String::contains const): Deleted. (WTF::String::containsIgnoringASCIICase const): Deleted. (WTF::String::startsWith const): Deleted. (WTF::String::startsWithIgnoringASCIICase const): Deleted. (WTF::String::hasInfixStartingAt const): Deleted. (WTF::String::endsWith const): Deleted. (WTF::String::endsWithIgnoringASCIICase const): Deleted. (WTF::String::hasInfixEndingAt const): Deleted. (WTF::String::append): Deleted. (WTF::String::left const): Deleted. (WTF::String::right const): Deleted. (WTF::String::createUninitialized): Deleted. (WTF::String::fromUTF8WithLatin1Fallback): Deleted. (WTF::String::isAllASCII const): Deleted. (WTF::String::isAllLatin1 const): Deleted. (WTF::String::isSpecialCharacter const): Deleted. (WTF::String::isHashTableDeletedValue const): Deleted. (WTF::String::hash const): Deleted. (WTF::String::existingHash const): Deleted. * wtf/text/cf/TextBreakIteratorCF.h: * wtf/text/icu/TextBreakIteratorICU.h: * wtf/text/icu/UTextProviderLatin1.h: * wtf/threads/BinarySemaphore.h: (WTF::BinarySemaphore::waitFor): Deleted. (WTF::BinarySemaphore::wait): Deleted. * wtf/unicode/Collator.h: * wtf/win/GDIObject.h: * wtf/win/PathWalker.h: * wtf/win/Win32Handle.h: Canonical link: https://commits.webkit.org/214396@main git-svn-id: https://svn.webkit.org/repository/webkit/trunk@248546 268f45cc-cd09-0410-ab3c-d52691b4dbfc
2019-08-12 20:57:15 +00:00
WTF_MAKE_FAST_ALLOCATED;
[WTF] Add DataMutex and MainThreadData wrappers https://bugs.webkit.org/show_bug.cgi?id=199831 Reviewed by Alex Christensen. Source/WTF: This patch adds two new wrapper classes: DataMutex<T> stores an instance of T in a private member along with a mutex. In order to use its fields, users need to instantiate a DataMutex<T>::LockedWrapper instance in the stack. This class uses RAII to lock and unlock the mutex in construction and destruction respectively, and by using the arrow operator lets the user access T's members. This way, DataMutex<T> prevents most instances of accidental access to data fields that should only be read and modified in an atomic matter. Still, both the Lock and the LockHolder are exposed once the user has taken the lock so that special cases such as waiting for a condition variable or performing an early unlock are doable. MainThreadData<T> is another wrapper class, in this case for data fields that should only be accessed from the main thread. In this case, it works similar to a smart pointer, except that (1) there is no actual memory indirection, T is stored directly inside MainThreadData<T> and (2) attempts to use the -> or * operator have an isMainThread() assertion. Together, these two wrapper classes make it easier to write multi-threaded code in a safer, more self-documented way by letting the author group data into structures that have certain access safety requirements. These structures were originally part of the new GStreamer WebKitMediaSrc rework patch: https://bugs.webkit.org/show_bug.cgi?id=199719 * wtf/CMakeLists.txt: * wtf/DataMutex.h: Added. (WTF::DataMutex::DataMutex): (WTF::DataMutex::LockedWrapper::LockedWrapper): (WTF::DataMutex::LockedWrapper::operator->): (WTF::DataMutex::LockedWrapper::operator*): (WTF::DataMutex::LockedWrapper::mutex): (WTF::DataMutex::LockedWrapper::lockHolder): * wtf/MainThreadData.h: Added. (WTF::MainThreadData::MainThreadData): (WTF::MainThreadData::operator->): (WTF::MainThreadData::operator*): Tools: Added a very simple test that checks that DataMutex<T> indeed takes the lock and indeed holds data. * TestWebKitAPI/CMakeLists.txt: * TestWebKitAPI/Tests/WTF/DataMutex.cpp: Added. (TestWebKitAPI::TEST): Canonical link: https://commits.webkit.org/213882@main git-svn-id: https://svn.webkit.org/repository/webkit/trunk@247723 268f45cc-cd09-0410-ab3c-d52691b4dbfc
2019-07-23 14:51:29 +00:00
public:
MainThreadData() { }
explicit MainThreadData(T&& data)
: m_data(WTFMove(data))
{ }
T* operator->()
{
ASSERT(isMainThread());
return &m_data;
}
T& operator*()
{
ASSERT(isMainThread());
return m_data;
}
private:
T m_data;
};
} // namespace WTF