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Commit a5d34961 authored by TreeHugger Robot's avatar TreeHugger Robot Committed by Android (Google) Code Review
Browse files

Merge "Tell policy about responsive connections"

parents e1208a47 234129c0

services/inputflinger/benchmarks/InputDispatcher_benchmarks.cpp

+10 −4
Original line number Diff line number Diff line
@@ -50,12 +50,18 @@ protected: 
private:

    void notifyConfigurationChanged(nsecs_t) override {}



    std::chrono::nanoseconds notifyAnr(const std::shared_ptr<InputApplicationHandle>&,

                                       const sp<IBinder>&, const std::string& name) override {

        ALOGE("The window is not responding : %s", name.c_str());

        return 0s;

    void notifyNoFocusedWindowAnr(

            const std::shared_ptr<InputApplicationHandle>& applicationHandle) override {

        ALOGE("There is no focused window for %s", applicationHandle->getName().c_str());

    }



    void notifyConnectionUnresponsive(const sp<IBinder>& connectionToken,

                                      const std::string& reason) override {

        ALOGE("Connection is not responding: %s", reason.c_str());

    }



    void notifyConnectionResponsive(const sp<IBinder>& connectionToken) override {}



    void notifyInputChannelBroken(const sp<IBinder>&) override {}



    void notifyFocusChanged(const sp<IBinder>&, const sp<IBinder>&) override {}

services/inputflinger/dispatcher/InputDispatcher.cpp

+47 −58
Original line number Diff line number Diff line
@@ -2336,7 +2336,7 @@ bool InputDispatcher::isWindowObscuredLocked(const sp<InputWindowHandle>& window 
}



std::string InputDispatcher::getApplicationWindowLabel(

        const std::shared_ptr<InputApplicationHandle>& applicationHandle,

        const InputApplicationHandle* applicationHandle,

        const sp<InputWindowHandle>& windowHandle) {

    if (applicationHandle != nullptr) {

        if (windowHandle != nullptr) {
@@ -4922,24 +4922,21 @@ void InputDispatcher::onAnrLocked(const Connection& connection) { 
    sp<IBinder> connectionToken = connection.inputChannel->getConnectionToken();

    updateLastAnrStateLocked(getWindowHandleLocked(connectionToken), reason);



    std::unique_ptr<CommandEntry> commandEntry =

            std::make_unique<CommandEntry>(&InputDispatcher::doNotifyAnrLockedInterruptible);

    commandEntry->inputApplicationHandle = nullptr;

    std::unique_ptr<CommandEntry> commandEntry = std::make_unique<CommandEntry>(

            &InputDispatcher::doNotifyConnectionUnresponsiveLockedInterruptible);

    commandEntry->connectionToken = connectionToken;

    commandEntry->reason = std::move(reason);

    postCommandLocked(std::move(commandEntry));

}



void InputDispatcher::onAnrLocked(const std::shared_ptr<InputApplicationHandle>& application) {

    std::string reason = android::base::StringPrintf("%s does not have a focused window",

                                                     application->getName().c_str());



    updateLastAnrStateLocked(application, reason);

void InputDispatcher::onAnrLocked(std::shared_ptr<InputApplicationHandle> application) {

    std::string reason =

            StringPrintf("%s does not have a focused window", application->getName().c_str());

    updateLastAnrStateLocked(*application, reason);



    std::unique_ptr<CommandEntry> commandEntry =

            std::make_unique<CommandEntry>(&InputDispatcher::doNotifyAnrLockedInterruptible);

    commandEntry->inputApplicationHandle = application;

    commandEntry->reason = std::move(reason);

    std::unique_ptr<CommandEntry> commandEntry = std::make_unique<CommandEntry>(

            &InputDispatcher::doNotifyNoFocusedWindowAnrLockedInterruptible);

    commandEntry->inputApplicationHandle = std::move(application);

    postCommandLocked(std::move(commandEntry));

}
@@ -4956,9 +4953,9 @@ void InputDispatcher::updateLastAnrStateLocked(const sp<InputWindowHandle>& wind 
    updateLastAnrStateLocked(windowLabel, reason);

}



void InputDispatcher::updateLastAnrStateLocked(

        const std::shared_ptr<InputApplicationHandle>& application, const std::string& reason) {

    const std::string windowLabel = getApplicationWindowLabel(application, nullptr);

void InputDispatcher::updateLastAnrStateLocked(const InputApplicationHandle& application,

                                               const std::string& reason) {

    const std::string windowLabel = getApplicationWindowLabel(&application, nullptr);

    updateLastAnrStateLocked(windowLabel, reason);

}
@@ -5006,61 +5003,44 @@ void InputDispatcher::doNotifyFocusChangedLockedInterruptible(CommandEntry* comm 
    mLock.lock();

}



void InputDispatcher::doNotifyAnrLockedInterruptible(CommandEntry* commandEntry) {

void InputDispatcher::doNotifyNoFocusedWindowAnrLockedInterruptible(CommandEntry* commandEntry) {

    mLock.unlock();

    const sp<IBinder>& token = commandEntry->connectionToken;

    const std::chrono::nanoseconds timeoutExtension =

            mPolicy->notifyAnr(commandEntry->inputApplicationHandle, token, commandEntry->reason);



    mPolicy->notifyNoFocusedWindowAnr(commandEntry->inputApplicationHandle);



    mLock.lock();

}



void InputDispatcher::doNotifyConnectionUnresponsiveLockedInterruptible(

        CommandEntry* commandEntry) {

    mLock.unlock();



    mPolicy->notifyConnectionUnresponsive(commandEntry->connectionToken, commandEntry->reason);



    mLock.lock();



    if (timeoutExtension > 0s) {

        extendAnrTimeoutsLocked(commandEntry->inputApplicationHandle, token, timeoutExtension);

    } else {

    // stop waking up for events in this connection, it is already not responding

        sp<Connection> connection = getConnectionLocked(token);

    sp<Connection> connection = getConnectionLocked(commandEntry->connectionToken);

    if (connection == nullptr) {

        return;

    }

    cancelEventsForAnrLocked(connection);

}

}



void InputDispatcher::doNotifyUntrustedTouchLockedInterruptible(CommandEntry* commandEntry) {

void InputDispatcher::doNotifyConnectionResponsiveLockedInterruptible(CommandEntry* commandEntry) {

    mLock.unlock();



    mPolicy->notifyUntrustedTouch(commandEntry->obscuringPackage);

    mPolicy->notifyConnectionResponsive(commandEntry->connectionToken);



    mLock.lock();

}



void InputDispatcher::extendAnrTimeoutsLocked(

        const std::shared_ptr<InputApplicationHandle>& application,

        const sp<IBinder>& connectionToken, std::chrono::nanoseconds timeoutExtension) {

    if (connectionToken == nullptr && application != nullptr) {

        // The ANR happened because there's no focused window

        mNoFocusedWindowTimeoutTime = now() + timeoutExtension.count();

        mAwaitedFocusedApplication = application;

    }



    sp<Connection> connection = getConnectionLocked(connectionToken);

    if (connection == nullptr) {

        // It's possible that the connection already disappeared. No action necessary.

        return;

    }

void InputDispatcher::doNotifyUntrustedTouchLockedInterruptible(CommandEntry* commandEntry) {

    mLock.unlock();



    ALOGI("Raised ANR, but the policy wants to keep waiting on %s for %" PRId64 "ms longer",

          connection->inputChannel->getName().c_str(), millis(timeoutExtension));

    mPolicy->notifyUntrustedTouch(commandEntry->obscuringPackage);



    connection->responsive = true;

    const nsecs_t newTimeout = now() + timeoutExtension.count();

    for (DispatchEntry* entry : connection->waitQueue) {

        if (newTimeout >= entry->timeoutTime) {

            // Already removed old entries when connection was marked unresponsive

            entry->timeoutTime = newTimeout;

            mAnrTracker.insert(entry->timeoutTime, connectionToken);

        }

    }

    mLock.lock();

}



void InputDispatcher::doInterceptKeyBeforeDispatchingLockedInterruptible(
@@ -5150,10 +5130,19 @@ void InputDispatcher::doDispatchCycleFinishedLockedInterruptible(CommandEntry* c 
    if (dispatchEntryIt != connection->waitQueue.end()) {

        dispatchEntry = *dispatchEntryIt;

        connection->waitQueue.erase(dispatchEntryIt);

        mAnrTracker.erase(dispatchEntry->timeoutTime,

                          connection->inputChannel->getConnectionToken());

        const sp<IBinder>& connectionToken = connection->inputChannel->getConnectionToken();

        mAnrTracker.erase(dispatchEntry->timeoutTime, connectionToken);

        if (!connection->responsive) {

            connection->responsive = isConnectionResponsive(*connection);

            if (connection->responsive) {

                // The connection was unresponsive, and now it's responsive. Tell the policy

                // about it so that it can stop ANR.

                std::unique_ptr<CommandEntry> connectionResponsiveCommand =

                        std::make_unique<CommandEntry>(

                                &InputDispatcher::doNotifyConnectionResponsiveLockedInterruptible);

                connectionResponsiveCommand->connectionToken = connectionToken;

                postCommandLocked(std::move(connectionResponsiveCommand));

            }

        }

        traceWaitQueueLength(connection);

        if (restartEvent && connection->status == Connection::STATUS_NORMAL) {

services/inputflinger/dispatcher/InputDispatcher.h

+9 −9
Original line number Diff line number Diff line
@@ -419,9 +419,6 @@ private: 
    // Once a connection becomes unresponsive, its entries are removed from AnrTracker to

    // prevent unneeded wakeups.

    AnrTracker mAnrTracker GUARDED_BY(mLock);

    void extendAnrTimeoutsLocked(const std::shared_ptr<InputApplicationHandle>& application,

                                 const sp<IBinder>& connectionToken,

                                 std::chrono::nanoseconds timeoutExtension) REQUIRES(mLock);



    // Contains the last window which received a hover event.

    sp<InputWindowHandle> mLastHoverWindowHandle GUARDED_BY(mLock);
@@ -475,8 +472,7 @@ private: 
                                       int32_t y) const REQUIRES(mLock);

    bool isWindowObscuredLocked(const sp<InputWindowHandle>& windowHandle) const REQUIRES(mLock);

    std::string dumpWindowForTouchOcclusion(const InputWindowInfo* info, bool isTouchWindow) const;

    std::string getApplicationWindowLabel(

            const std::shared_ptr<InputApplicationHandle>& applicationHandle,

    std::string getApplicationWindowLabel(const InputApplicationHandle* applicationHandle,

                                          const sp<InputWindowHandle>& windowHandle);



    // Manage the dispatch cycle for a single connection.
@@ -554,11 +550,11 @@ private: 
    void notifyFocusChangedLocked(const sp<IBinder>& oldFocus, const sp<IBinder>& newFocus)

            REQUIRES(mLock);

    void onAnrLocked(const Connection& connection) REQUIRES(mLock);

    void onAnrLocked(const std::shared_ptr<InputApplicationHandle>& application) REQUIRES(mLock);

    void onAnrLocked(std::shared_ptr<InputApplicationHandle> application) REQUIRES(mLock);

    void onUntrustedTouchLocked(const std::string& obscuringPackage) REQUIRES(mLock);

    void updateLastAnrStateLocked(const sp<InputWindowHandle>& window, const std::string& reason)

            REQUIRES(mLock);

    void updateLastAnrStateLocked(const std::shared_ptr<InputApplicationHandle>& application,

    void updateLastAnrStateLocked(const InputApplicationHandle& application,

                                  const std::string& reason) REQUIRES(mLock);

    void updateLastAnrStateLocked(const std::string& windowLabel, const std::string& reason)

            REQUIRES(mLock);
@@ -568,7 +564,11 @@ private: 
            REQUIRES(mLock);

    void doNotifyInputChannelBrokenLockedInterruptible(CommandEntry* commandEntry) REQUIRES(mLock);

    void doNotifyFocusChangedLockedInterruptible(CommandEntry* commandEntry) REQUIRES(mLock);

    void doNotifyAnrLockedInterruptible(CommandEntry* commandEntry) REQUIRES(mLock);

    void doNotifyNoFocusedWindowAnrLockedInterruptible(CommandEntry* commandEntry) REQUIRES(mLock);

    void doNotifyConnectionUnresponsiveLockedInterruptible(CommandEntry* commandEntry)

            REQUIRES(mLock);

    void doNotifyConnectionResponsiveLockedInterruptible(CommandEntry* commandEntry)

            REQUIRES(mLock);

    void doNotifyUntrustedTouchLockedInterruptible(CommandEntry* commandEntry) REQUIRES(mLock);

    void doInterceptKeyBeforeDispatchingLockedInterruptible(CommandEntry* commandEntry)

            REQUIRES(mLock);

services/inputflinger/dispatcher/include/InputDispatcherPolicyInterface.h

+19 −5
Original line number Diff line number Diff line
@@ -45,11 +45,25 @@ public: 
    /* Notifies the system that a configuration change has occurred. */

    virtual void notifyConfigurationChanged(nsecs_t when) = 0;



    /* Notifies the system that an application is not responding.

     * Returns a new timeout to continue waiting, or 0 to abort dispatch. */

    virtual std::chrono::nanoseconds notifyAnr(

            const std::shared_ptr<InputApplicationHandle>& inputApplicationHandle,

            const sp<IBinder>& token, const std::string& reason) = 0;

    /* Notifies the system that an application does not have a focused window.

     */

    virtual void notifyNoFocusedWindowAnr(

            const std::shared_ptr<InputApplicationHandle>& inputApplicationHandle) = 0;



    /* Notifies the system that a connection just became unresponsive. This indicates that ANR

     * should be raised for this connection. The connection is identified via token.

     * The string reason contains information about the input event that we haven't received

     * a response for.

     */

    virtual void notifyConnectionUnresponsive(const sp<IBinder>& token,

                                              const std::string& reason) = 0;



    /* Notifies the system that a connection just became responsive. This is only called after the

     * connection was first marked "unresponsive". This indicates that ANR dialog (if any) should

     * no longer should be shown to the user. The connection is eligible to cause a new ANR in the

     * future.

     */

    virtual void notifyConnectionResponsive(const sp<IBinder>& token) = 0;



    /* Notifies the system that an input channel is unrecoverably broken. */

    virtual void notifyInputChannelBroken(const sp<IBinder>& token) = 0;

services/inputflinger/tests/InputDispatcher_test.cpp

+152 −93

File changed.

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