| /* |
| * Copyright (C) 2022 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. 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 INC. 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. |
| */ |
| |
| #include "config.h" |
| #include "IPCStreamTester.h" |
| |
| #if ENABLE(IPC_TESTING_API) |
| #include "Decoder.h" |
| #include "IPCStreamTesterMessages.h" |
| #include "IPCStreamTesterProxyMessages.h" |
| #include "IPCTester.h" |
| #include "StreamConnectionWorkQueue.h" |
| #include "StreamServerConnection.h" |
| |
| #if USE(FOUNDATION) |
| #include <CoreFoundation/CoreFoundation.h> |
| #endif |
| |
| namespace WebKit { |
| |
| RefPtr<IPCStreamTester> IPCStreamTester::create(IPC::Connection& connection, IPCStreamTesterIdentifier identifier, IPC::StreamConnectionBuffer&& stream) |
| { |
| auto tester = adoptRef(*new IPCStreamTester(connection, identifier, WTFMove(stream))); |
| tester->initialize(); |
| return tester; |
| } |
| |
| IPCStreamTester::IPCStreamTester(IPC::Connection& connection, IPCStreamTesterIdentifier identifier, IPC::StreamConnectionBuffer&& stream) |
| : m_workQueue(IPC::StreamConnectionWorkQueue::create("IPCStreamTester work queue")) |
| , m_streamConnection(IPC::StreamServerConnection::create(connection, WTFMove(stream), workQueue())) |
| , m_identifier(identifier) |
| { |
| } |
| |
| IPCStreamTester::~IPCStreamTester() = default; |
| |
| void IPCStreamTester::initialize() |
| { |
| m_streamConnection->startReceivingMessages(*this, Messages::IPCStreamTester::messageReceiverName(), m_identifier.toUInt64()); |
| m_streamConnection->open(); |
| workQueue().dispatch([this] { |
| m_streamConnection->connection().send(Messages::IPCStreamTesterProxy::WasCreated(workQueue().wakeUpSemaphore(), m_streamConnection->clientWaitSemaphore()), m_identifier); |
| }); |
| } |
| |
| void IPCStreamTester::stopListeningForIPC(Ref<IPCStreamTester>&& refFromConnection) |
| { |
| m_streamConnection->invalidate(); |
| m_streamConnection->stopReceivingMessages(Messages::IPCStreamTester::messageReceiverName(), m_identifier.toUInt64()); |
| workQueue().stopAndWaitForCompletion(); |
| } |
| |
| void IPCStreamTester::syncMessageReturningSharedMemory1(uint32_t byteCount, CompletionHandler<void(SharedMemory::IPCHandle)>&& completionHandler) |
| { |
| auto result = [&]() -> SharedMemory::IPCHandle { |
| auto sharedMemory = WebKit::SharedMemory::allocate(byteCount); |
| if (!sharedMemory) |
| return { }; |
| SharedMemory::Handle handle; |
| if (!sharedMemory->createHandle(handle, SharedMemory::Protection::ReadOnly)) |
| return { }; |
| if (handle.isNull()) |
| return { }; |
| uint8_t* data = static_cast<uint8_t*>(sharedMemory->data()); |
| for (size_t i = 0; i < sharedMemory->size(); ++i) |
| data[i] = i; |
| return { WTFMove(handle), sharedMemory->size() }; |
| }(); |
| completionHandler(WTFMove(result)); |
| } |
| |
| void IPCStreamTester::syncCrashOnZero(int32_t value, CompletionHandler<void(int32_t)>&& completionHandler) |
| { |
| if (!value) { |
| // Use exit so that we don't leave a crash report. |
| #if OS(WINDOWS) |
| // Calling _exit in non-main threads may cause a deadlock in WTF::Thread::ThreadHolder::~ThreadHolder. |
| TerminateProcess(GetCurrentProcess(), EXIT_SUCCESS); |
| #else |
| _exit(EXIT_SUCCESS); |
| #endif |
| } |
| completionHandler(value); |
| } |
| |
| #if USE(FOUNDATION) |
| |
| namespace { |
| struct UseCountHolder { |
| std::shared_ptr<bool> value; |
| }; |
| } |
| |
| static void releaseUseCountHolder(CFAllocatorRef, const void* value) |
| { |
| delete static_cast<const UseCountHolder*>(value); |
| } |
| |
| #endif |
| |
| void IPCStreamTester::checkAutoreleasePool(CompletionHandler<void(int32_t)>&& completionHandler) |
| { |
| if (!m_autoreleasePoolCheckValue) |
| m_autoreleasePoolCheckValue = std::make_shared<bool>(true); |
| completionHandler(m_autoreleasePoolCheckValue.use_count()); |
| |
| #if USE(FOUNDATION) |
| static const CFArrayCallBacks arrayCallbacks { |
| .release = releaseUseCountHolder, |
| }; |
| const void* values[] = { new UseCountHolder { m_autoreleasePoolCheckValue } }; |
| CFArrayRef releaseDetector = CFArrayCreate(kCFAllocatorDefault, values, 1, &arrayCallbacks); |
| CFAutorelease(releaseDetector); |
| #endif |
| } |
| } |
| |
| #endif |