C++ parentProcessConnection函数代码示例

void NetworkProcess::createNetworkConnectionToWebProcess()
{
#if USE(UNIX_DOMAIN_SOCKETS)
    IPC::Connection::SocketPair socketPair = IPC::Connection::createPlatformConnection();

    RefPtr<NetworkConnectionToWebProcess> connection = NetworkConnectionToWebProcess::create(socketPair.server);
    m_webProcessConnections.append(connection.release());

    IPC::Attachment clientSocket(socketPair.client);
    parentProcessConnection()->send(Messages::NetworkProcessProxy::DidCreateNetworkConnectionToWebProcess(clientSocket), 0);
#elif OS(DARWIN)
    // Create the listening port.
    mach_port_t listeningPort;
    mach_port_allocate(mach_task_self(), MACH_PORT_RIGHT_RECEIVE, &listeningPort);

    // Create a listening connection.
    RefPtr<NetworkConnectionToWebProcess> connection = NetworkConnectionToWebProcess::create(IPC::Connection::Identifier(listeningPort));
    m_webProcessConnections.append(connection.release());

    IPC::Attachment clientPort(listeningPort, MACH_MSG_TYPE_MAKE_SEND);
    parentProcessConnection()->send(Messages::NetworkProcessProxy::DidCreateNetworkConnectionToWebProcess(clientPort), 0);
#else
    notImplemented();
#endif
}

void NetworkProcess::logDiagnosticMessageWithResult(uint64_t webPageID, const String& message, const String& description, WebCore::DiagnosticLoggingResultType result, WebCore::ShouldSample shouldSample)
{
    if (!DiagnosticLoggingClient::shouldLogAfterSampling(shouldSample))
        return;

    parentProcessConnection()->send(Messages::NetworkProcessProxy::LogSampledDiagnosticMessageWithResult(webPageID, message, description, result), 0);
}

void WebProcess::plugInDidReceiveUserInteraction(const String& pageOrigin, const String& pluginOrigin, const String& mimeType, SessionID sessionID)
{
    if (pageOrigin.isEmpty())
        return;

    unsigned plugInOriginHash = hashForPlugInOrigin(pageOrigin, pluginOrigin, mimeType);
    if (!plugInOriginHash)
        return;

    HashMap<WebCore::SessionID, HashMap<unsigned, double>>::const_iterator sessionIterator = m_plugInAutoStartOriginHashes.find(sessionID);
    HashMap<unsigned, double>::const_iterator it;
    bool contains = false;
    if (sessionIterator != m_plugInAutoStartOriginHashes.end()) {
        it = sessionIterator->value.find(plugInOriginHash);
        contains = it != sessionIterator->value.end();
    }
    if (!contains) {
        sessionIterator = m_plugInAutoStartOriginHashes.find(SessionID::defaultSessionID());
        it = sessionIterator->value.find(plugInOriginHash);
        if (it == sessionIterator->value.end())
            return;
    }

    if (it->value - currentTime() > plugInAutoStartExpirationTimeUpdateThreshold)
        return;

    parentProcessConnection()->send(Messages::WebProcessPool::PlugInDidReceiveUserInteraction(plugInOriginHash, sessionID), 0);
}

void WebProcess::ensureNetworkProcessConnection()
{
    if (!m_usesNetworkProcess)
        return;

    if (m_networkProcessConnection)
        return;

    IPC::Attachment encodedConnectionIdentifier;

    if (!parentProcessConnection()->sendSync(Messages::WebProcessProxy::GetNetworkProcessConnection(),
        Messages::WebProcessProxy::GetNetworkProcessConnection::Reply(encodedConnectionIdentifier), 0))
        return;

#if OS(DARWIN)
    IPC::Connection::Identifier connectionIdentifier(encodedConnectionIdentifier.port());
#elif USE(UNIX_DOMAIN_SOCKETS)
    IPC::Connection::Identifier connectionIdentifier = encodedConnectionIdentifier.releaseFileDescriptor();
#else
    ASSERT_NOT_REACHED();
#endif
    if (IPC::Connection::identifierIsNull(connectionIdentifier))
        return;
    m_networkProcessConnection = NetworkProcessConnection::create(connectionIdentifier);
}

void DatabaseProcess::deleteWebsiteData(WebCore::SessionID, uint64_t websiteDataTypes, std::chrono::system_clock::time_point modifiedSince, uint64_t callbackID)
{
    struct CallbackAggregator final : public ThreadSafeRefCounted<CallbackAggregator> {
        explicit CallbackAggregator(std::function<void ()> completionHandler)
            : m_completionHandler(WTFMove(completionHandler))
        {
        }

        ~CallbackAggregator()
        {
            ASSERT(RunLoop::isMain());

            RunLoop::main().dispatch(WTFMove(m_completionHandler));
        }

        std::function<void ()> m_completionHandler;
    };

    RefPtr<CallbackAggregator> callbackAggregator = adoptRef(new CallbackAggregator([this, callbackID]() {
        parentProcessConnection()->send(Messages::DatabaseProcessProxy::DidDeleteWebsiteData(callbackID), 0);
    }));

#if ENABLE(INDEXED_DATABASE)
    if (websiteDataTypes & WebsiteDataTypeIndexedDBDatabases) {
        postDatabaseTask(std::make_unique<CrossThreadTask>([this, callbackAggregator, modifiedSince] {

            deleteIndexedDatabaseEntriesModifiedSince(modifiedSince);
            RunLoop::main().dispatch([callbackAggregator] { });
        }));
    }
#endif
}

void NetworkProcess::deleteWebsiteData(SessionID sessionID, uint64_t websiteDataTypes, std::chrono::system_clock::time_point modifiedSince, uint64_t callbackID)
{
#if PLATFORM(COCOA)
    if (websiteDataTypes & WebsiteDataTypeHSTSCache) {
        if (auto* networkStorageSession = SessionTracker::storageSession(sessionID))
            clearHSTSCache(*networkStorageSession, modifiedSince);
    }
#endif

    if (websiteDataTypes & WebsiteDataTypeCookies) {
        if (auto* networkStorageSession = SessionTracker::storageSession(sessionID))
            deleteAllCookiesModifiedSince(*networkStorageSession, modifiedSince);
    }

    auto completionHandler = [this, callbackID] {
        parentProcessConnection()->send(Messages::NetworkProcessProxy::DidDeleteWebsiteData(callbackID), 0);
    };

    if ((websiteDataTypes & WebsiteDataTypeDiskCache) && !sessionID.isEphemeral()) {
        clearDiskCache(modifiedSince, WTFMove(completionHandler));
        return;
    }

    completionHandler();
}

void NetworkProcess::logDiagnosticMessageWithValue(uint64_t webPageID, const String& message, const String& description, const String& value, ShouldSample shouldSample)
{
    if (!DiagnosticLoggingClient::shouldLogAfterSampling(shouldSample))
        return;

    parentProcessConnection()->send(Messages::NetworkProcessProxy::LogSampledDiagnosticMessageWithValue(webPageID, message, description, value), 0);
}

void WebProcess::processSuspensionCleanupTimerFired()
{
    if (!markAllLayersVolatileIfPossible())
        return;
    m_processSuspensionCleanupTimer.stop();
    if (m_shouldAcknowledgeWhenReadyToSuspend == ShouldAcknowledgeWhenReadyToSuspend::Yes)
        parentProcessConnection()->send(Messages::WebProcessProxy::ProcessReadyToSuspend(), 0);
}

void PluginProcess::getSitesWithData(uint64_t callbackID)
{
    Vector<String> sites;
    if (NetscapePluginModule* module = netscapePluginModule())
        sites = module->sitesWithData();

    parentProcessConnection()->send(Messages::PluginProcessProxy::DidGetSitesWithData(sites, callbackID), 0);
}

void PluginProcess::createWebProcessConnection()
{
    bool didHaveAnyWebProcessConnections = !m_webProcessConnections.isEmpty();

#if OS(DARWIN)
    // Create the listening port.
    mach_port_t listeningPort;
    mach_port_allocate(mach_task_self(), MACH_PORT_RIGHT_RECEIVE, &listeningPort);

    // Create a listening connection.
    RefPtr<WebProcessConnection> connection = WebProcessConnection::create(IPC::Connection::Identifier(listeningPort));

    if (m_audioHardwareListener) {
        if (m_audioHardwareListener->hardwareActivity() == WebCore::AudioHardwareActivityType::IsActive)
            connection->audioHardwareDidBecomeActive();
        else if (m_audioHardwareListener->hardwareActivity() == WebCore::AudioHardwareActivityType::IsInactive)
            connection->audioHardwareDidBecomeInactive();
    }

    m_webProcessConnections.append(connection.release());

    IPC::Attachment clientPort(listeningPort, MACH_MSG_TYPE_MAKE_SEND);
    parentProcessConnection()->send(Messages::PluginProcessProxy::DidCreateWebProcessConnection(clientPort, m_supportsAsynchronousPluginInitialization), 0);
#elif USE(UNIX_DOMAIN_SOCKETS)
    IPC::Connection::SocketPair socketPair = IPC::Connection::createPlatformConnection();

    RefPtr<WebProcessConnection> connection = WebProcessConnection::create(socketPair.server);
    m_webProcessConnections.append(connection.release());

    IPC::Attachment clientSocket(socketPair.client);
    parentProcessConnection()->send(Messages::PluginProcessProxy::DidCreateWebProcessConnection(clientSocket, m_supportsAsynchronousPluginInitialization), 0);
#else
    notImplemented();
#endif

    if (NetscapePluginModule* module = netscapePluginModule()) {
        if (!didHaveAnyWebProcessConnections) {
            // Increment the load count. This is matched by a call to decrementLoadCount in removeWebProcessConnection.
            // We do this so that the plug-in module's NP_Shutdown won't be called until right before exiting.
            module->incrementLoadCount();
        }
    }

    disableTermination();
}

void WebProcess::addPlugInAutoStartOrigin(const String& pageOrigin, unsigned plugInOriginHash)
{
    if (isPlugInAutoStartOrigin(plugInOriginHash)) {
        LOG(Plugins, "Hash %x already exists as auto-start origin (request for %s)", plugInOriginHash, pageOrigin.utf8().data());
        return;
    }

    parentProcessConnection()->send(Messages::WebContext::AddPlugInAutoStartOriginHash(pageOrigin, plugInOriginHash), 0);
}

void WebProcess::cancelPrepareToSuspend()
{
    setAllLayerTreeStatesFrozen(false);

    // If we've already finished cleaning up and sent ProcessReadyToSuspend, we
    // shouldn't send DidCancelProcessSuspension; the UI process strictly expects one or the other.
    if (!m_processSuspensionCleanupTimer.isActive())
        return;

    m_processSuspensionCleanupTimer.stop();
    parentProcessConnection()->send(Messages::WebProcessProxy::DidCancelProcessSuspension(), 0);
}

bool WebProcess::shouldTerminate()
{
    ASSERT(m_pageMap.isEmpty());
    ASSERT(usesNetworkProcess() || !downloadManager().isDownloading());

    // FIXME: the ShouldTerminate message should also send termination parameters, such as any session cookies that need to be preserved.
    bool shouldTerminate = false;
    if (parentProcessConnection()->sendSync(Messages::WebProcessProxy::ShouldTerminate(), Messages::WebProcessProxy::ShouldTerminate::Reply(shouldTerminate), 0)
        && !shouldTerminate)
        return false;

    return true;
}

void WebProcess::plugInDidReceiveUserInteraction(unsigned plugInOriginHash)
{
    if (!plugInOriginHash)
        return;

    HashMap<unsigned, double>::iterator it = m_plugInAutoStartOrigins.find(plugInOriginHash);
    if (it == m_plugInAutoStartOrigins.end())
        return;
    if (it->value - currentTime() > plugInAutoStartExpirationTimeUpdateThreshold)
        return;

    parentProcessConnection()->send(Messages::WebContext::PlugInDidReceiveUserInteraction(plugInOriginHash), 0);
}

void WebProcess::deleteWebsiteData(SessionID sessionID, uint64_t websiteDataTypes, std::chrono::system_clock::time_point modifiedSince, uint64_t callbackID)
{
    UNUSED_PARAM(modifiedSince);

    if (websiteDataTypes & WebsiteDataTypeMemoryCache) {
        PageCache::singleton().pruneToSizeNow(0, PruningReason::None);
        MemoryCache::singleton().evictResources(sessionID);

        CrossOriginPreflightResultCache::singleton().empty();
    }

    parentProcessConnection()->send(Messages::WebProcessProxy::DidDeleteWebsiteData(callbackID), 0);
}