| /* |
| * Copyright (C) 2010 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef _UI_INPUT_DISPATCHER_H |
| #define _UI_INPUT_DISPATCHER_H |
| |
| #include <ui/Input.h> |
| #include <ui/InputTransport.h> |
| #include <utils/KeyedVector.h> |
| #include <utils/Vector.h> |
| #include <utils/threads.h> |
| #include <utils/Timers.h> |
| #include <utils/RefBase.h> |
| #include <utils/String8.h> |
| #include <utils/PollLoop.h> |
| #include <utils/Pool.h> |
| |
| #include <stddef.h> |
| #include <unistd.h> |
| |
| |
| namespace android { |
| |
| /* |
| * Constants used to report the outcome of input event injection. |
| */ |
| enum { |
| /* (INTERNAL USE ONLY) Specifies that injection is pending and its outcome is unknown. */ |
| INPUT_EVENT_INJECTION_PENDING = -1, |
| |
| /* Injection succeeded. */ |
| INPUT_EVENT_INJECTION_SUCCEEDED = 0, |
| |
| /* Injection failed because the injector did not have permission to inject |
| * into the application with input focus. */ |
| INPUT_EVENT_INJECTION_PERMISSION_DENIED = 1, |
| |
| /* Injection failed because there were no available input targets. */ |
| INPUT_EVENT_INJECTION_FAILED = 2, |
| |
| /* Injection failed due to a timeout. */ |
| INPUT_EVENT_INJECTION_TIMED_OUT = 3 |
| }; |
| |
| |
| /* |
| * An input target specifies how an input event is to be dispatched to a particular window |
| * including the window's input channel, control flags, a timeout, and an X / Y offset to |
| * be added to input event coordinates to compensate for the absolute position of the |
| * window area. |
| */ |
| struct InputTarget { |
| enum { |
| /* This flag indicates that subsequent event delivery should be held until the |
| * current event is delivered to this target or a timeout occurs. */ |
| FLAG_SYNC = 0x01, |
| |
| /* This flag indicates that a MotionEvent with ACTION_DOWN falls outside of the area of |
| * this target and so should instead be delivered as an ACTION_OUTSIDE to this target. */ |
| FLAG_OUTSIDE = 0x02, |
| |
| /* This flag indicates that a KeyEvent or MotionEvent is being canceled. |
| * In the case of a key event, it should be delivered with KeyEvent.FLAG_CANCELED set. |
| * In the case of a motion event, it should be delivered as MotionEvent.ACTION_CANCEL. */ |
| FLAG_CANCEL = 0x04 |
| }; |
| |
| // The input channel to be targeted. |
| sp<InputChannel> inputChannel; |
| |
| // Flags for the input target. |
| int32_t flags; |
| |
| // The timeout for event delivery to this target in nanoseconds. Or -1 if none. |
| nsecs_t timeout; |
| |
| // The x and y offset to add to a MotionEvent as it is delivered. |
| // (ignored for KeyEvents) |
| float xOffset, yOffset; |
| }; |
| |
| |
| /* |
| * Input dispatcher policy interface. |
| * |
| * The input reader policy is used by the input reader to interact with the Window Manager |
| * and other system components. |
| * |
| * The actual implementation is partially supported by callbacks into the DVM |
| * via JNI. This interface is also mocked in the unit tests. |
| */ |
| class InputDispatcherPolicyInterface : public virtual RefBase { |
| protected: |
| InputDispatcherPolicyInterface() { } |
| virtual ~InputDispatcherPolicyInterface() { } |
| |
| public: |
| /* Notifies the system that a configuration change has occurred. */ |
| virtual void notifyConfigurationChanged(nsecs_t when) = 0; |
| |
| /* Notifies the system that an input channel is unrecoverably broken. */ |
| virtual void notifyInputChannelBroken(const sp<InputChannel>& inputChannel) = 0; |
| |
| /* Notifies the system that an input channel is not responding. |
| * Returns true and a new timeout value if the dispatcher should keep waiting. |
| * Otherwise returns false. */ |
| virtual bool notifyInputChannelANR(const sp<InputChannel>& inputChannel, |
| nsecs_t& outNewTimeout) = 0; |
| |
| /* Notifies the system that an input channel recovered from ANR. */ |
| virtual void notifyInputChannelRecoveredFromANR(const sp<InputChannel>& inputChannel) = 0; |
| |
| /* Gets the key repeat timeout or -1 if automatic key repeating is disabled. */ |
| virtual nsecs_t getKeyRepeatTimeout() = 0; |
| |
| /* Gets the input targets for a key event. |
| * If the event is being injected, injectorPid and injectorUid should specify the |
| * process id and used id of the injecting application, otherwise they should both |
| * be -1. |
| * Returns one of the INPUT_EVENT_INJECTION_XXX constants. */ |
| virtual int32_t getKeyEventTargets(KeyEvent* keyEvent, uint32_t policyFlags, |
| int32_t injectorPid, int32_t injectorUid, |
| Vector<InputTarget>& outTargets) = 0; |
| |
| /* Gets the input targets for a motion event. |
| * If the event is being injected, injectorPid and injectorUid should specify the |
| * process id and used id of the injecting application, otherwise they should both |
| * be -1. |
| * Returns one of the INPUT_EVENT_INJECTION_XXX constants. */ |
| virtual int32_t getMotionEventTargets(MotionEvent* motionEvent, uint32_t policyFlags, |
| int32_t injectorPid, int32_t injectorUid, |
| Vector<InputTarget>& outTargets) = 0; |
| }; |
| |
| |
| /* Notifies the system about input events generated by the input reader. |
| * The dispatcher is expected to be mostly asynchronous. */ |
| class InputDispatcherInterface : public virtual RefBase { |
| protected: |
| InputDispatcherInterface() { } |
| virtual ~InputDispatcherInterface() { } |
| |
| public: |
| /* Runs a single iteration of the dispatch loop. |
| * Nominally processes one queued event, a timeout, or a response from an input consumer. |
| * |
| * This method should only be called on the input dispatcher thread. |
| */ |
| virtual void dispatchOnce() = 0; |
| |
| /* Notifies the dispatcher about new events. |
| * |
| * These methods should only be called on the input reader thread. |
| */ |
| virtual void notifyConfigurationChanged(nsecs_t eventTime) = 0; |
| virtual void notifyAppSwitchComing(nsecs_t eventTime) = 0; |
| virtual void notifyKey(nsecs_t eventTime, int32_t deviceId, int32_t nature, |
| uint32_t policyFlags, int32_t action, int32_t flags, int32_t keyCode, |
| int32_t scanCode, int32_t metaState, nsecs_t downTime) = 0; |
| virtual void notifyMotion(nsecs_t eventTime, int32_t deviceId, int32_t nature, |
| uint32_t policyFlags, int32_t action, int32_t metaState, int32_t edgeFlags, |
| uint32_t pointerCount, const int32_t* pointerIds, const PointerCoords* pointerCoords, |
| float xPrecision, float yPrecision, nsecs_t downTime) = 0; |
| |
| /* Injects an input event and optionally waits for sync. |
| * This method may block even if sync is false because it must wait for previous events |
| * to be dispatched before it can determine whether input event injection will be |
| * permitted based on the current input focus. |
| * Returns one of the INPUT_EVENT_INJECTION_XXX constants. |
| * |
| * This method may be called on any thread (usually by the input manager). |
| */ |
| virtual int32_t injectInputEvent(const InputEvent* event, |
| int32_t injectorPid, int32_t injectorUid, bool sync, int32_t timeoutMillis) = 0; |
| |
| /* Registers or unregister input channels that may be used as targets for input events. |
| * |
| * These methods may be called on any thread (usually by the input manager). |
| */ |
| virtual status_t registerInputChannel(const sp<InputChannel>& inputChannel) = 0; |
| virtual status_t unregisterInputChannel(const sp<InputChannel>& inputChannel) = 0; |
| }; |
| |
| /* Dispatches events to input targets. Some functions of the input dispatcher, such as |
| * identifying input targets, are controlled by a separate policy object. |
| * |
| * IMPORTANT INVARIANT: |
| * Because the policy can potentially block or cause re-entrance into the input dispatcher, |
| * the input dispatcher never calls into the policy while holding its internal locks. |
| * The implementation is also carefully designed to recover from scenarios such as an |
| * input channel becoming unregistered while identifying input targets or processing timeouts. |
| * |
| * Methods marked 'Locked' must be called with the lock acquired. |
| * |
| * Methods marked 'LockedInterruptible' must be called with the lock acquired but |
| * may during the course of their execution release the lock, call into the policy, and |
| * then reacquire the lock. The caller is responsible for recovering gracefully. |
| * |
| * A 'LockedInterruptible' method may called a 'Locked' method, but NOT vice-versa. |
| */ |
| class InputDispatcher : public InputDispatcherInterface { |
| protected: |
| virtual ~InputDispatcher(); |
| |
| public: |
| explicit InputDispatcher(const sp<InputDispatcherPolicyInterface>& policy); |
| |
| virtual void dispatchOnce(); |
| |
| virtual void notifyConfigurationChanged(nsecs_t eventTime); |
| virtual void notifyAppSwitchComing(nsecs_t eventTime); |
| virtual void notifyKey(nsecs_t eventTime, int32_t deviceId, int32_t nature, |
| uint32_t policyFlags, int32_t action, int32_t flags, int32_t keyCode, |
| int32_t scanCode, int32_t metaState, nsecs_t downTime); |
| virtual void notifyMotion(nsecs_t eventTime, int32_t deviceId, int32_t nature, |
| uint32_t policyFlags, int32_t action, int32_t metaState, int32_t edgeFlags, |
| uint32_t pointerCount, const int32_t* pointerIds, const PointerCoords* pointerCoords, |
| float xPrecision, float yPrecision, nsecs_t downTime); |
| |
| virtual int32_t injectInputEvent(const InputEvent* event, |
| int32_t injectorPid, int32_t injectorUid, bool sync, int32_t timeoutMillis); |
| |
| virtual status_t registerInputChannel(const sp<InputChannel>& inputChannel); |
| virtual status_t unregisterInputChannel(const sp<InputChannel>& inputChannel); |
| |
| private: |
| template <typename T> |
| struct Link { |
| T* next; |
| T* prev; |
| }; |
| |
| struct EventEntry : Link<EventEntry> { |
| enum { |
| TYPE_SENTINEL, |
| TYPE_CONFIGURATION_CHANGED, |
| TYPE_KEY, |
| TYPE_MOTION |
| }; |
| |
| int32_t refCount; |
| int32_t type; |
| nsecs_t eventTime; |
| |
| int32_t injectionResult; // initially INPUT_EVENT_INJECTION_PENDING |
| int32_t injectorPid; // -1 if not injected |
| int32_t injectorUid; // -1 if not injected |
| |
| bool dispatchInProgress; // initially false, set to true while dispatching |
| |
| inline bool isInjected() { return injectorPid >= 0; } |
| }; |
| |
| struct ConfigurationChangedEntry : EventEntry { |
| }; |
| |
| struct KeyEntry : EventEntry { |
| int32_t deviceId; |
| int32_t nature; |
| uint32_t policyFlags; |
| int32_t action; |
| int32_t flags; |
| int32_t keyCode; |
| int32_t scanCode; |
| int32_t metaState; |
| int32_t repeatCount; |
| nsecs_t downTime; |
| }; |
| |
| struct MotionSample { |
| MotionSample* next; |
| |
| nsecs_t eventTime; |
| PointerCoords pointerCoords[MAX_POINTERS]; |
| }; |
| |
| struct MotionEntry : EventEntry { |
| int32_t deviceId; |
| int32_t nature; |
| uint32_t policyFlags; |
| int32_t action; |
| int32_t metaState; |
| int32_t edgeFlags; |
| float xPrecision; |
| float yPrecision; |
| nsecs_t downTime; |
| uint32_t pointerCount; |
| int32_t pointerIds[MAX_POINTERS]; |
| |
| // Linked list of motion samples associated with this motion event. |
| MotionSample firstSample; |
| MotionSample* lastSample; |
| }; |
| |
| // Tracks the progress of dispatching a particular event to a particular connection. |
| struct DispatchEntry : Link<DispatchEntry> { |
| EventEntry* eventEntry; // the event to dispatch |
| int32_t targetFlags; |
| float xOffset; |
| float yOffset; |
| nsecs_t timeout; |
| |
| // True if dispatch has started. |
| bool inProgress; |
| |
| // For motion events: |
| // Pointer to the first motion sample to dispatch in this cycle. |
| // Usually NULL to indicate that the list of motion samples begins at |
| // MotionEntry::firstSample. Otherwise, some samples were dispatched in a previous |
| // cycle and this pointer indicates the location of the first remainining sample |
| // to dispatch during the current cycle. |
| MotionSample* headMotionSample; |
| // Pointer to a motion sample to dispatch in the next cycle if the dispatcher was |
| // unable to send all motion samples during this cycle. On the next cycle, |
| // headMotionSample will be initialized to tailMotionSample and tailMotionSample |
| // will be set to NULL. |
| MotionSample* tailMotionSample; |
| }; |
| |
| // A command entry captures state and behavior for an action to be performed in the |
| // dispatch loop after the initial processing has taken place. It is essentially |
| // a kind of continuation used to postpone sensitive policy interactions to a point |
| // in the dispatch loop where it is safe to release the lock (generally after finishing |
| // the critical parts of the dispatch cycle). |
| // |
| // The special thing about commands is that they can voluntarily release and reacquire |
| // the dispatcher lock at will. Initially when the command starts running, the |
| // dispatcher lock is held. However, if the command needs to call into the policy to |
| // do some work, it can release the lock, do the work, then reacquire the lock again |
| // before returning. |
| // |
| // This mechanism is a bit clunky but it helps to preserve the invariant that the dispatch |
| // never calls into the policy while holding its lock. |
| // |
| // Commands are implicitly 'LockedInterruptible'. |
| struct CommandEntry; |
| typedef void (InputDispatcher::*Command)(CommandEntry* commandEntry); |
| |
| class Connection; |
| struct CommandEntry : Link<CommandEntry> { |
| CommandEntry(); |
| ~CommandEntry(); |
| |
| Command command; |
| |
| // parameters for the command (usage varies by command) |
| sp<Connection> connection; |
| }; |
| |
| // Generic queue implementation. |
| template <typename T> |
| struct Queue { |
| T head; |
| T tail; |
| |
| inline Queue() { |
| head.prev = NULL; |
| head.next = & tail; |
| tail.prev = & head; |
| tail.next = NULL; |
| } |
| |
| inline bool isEmpty() { |
| return head.next == & tail; |
| } |
| |
| inline void enqueueAtTail(T* entry) { |
| T* last = tail.prev; |
| last->next = entry; |
| entry->prev = last; |
| entry->next = & tail; |
| tail.prev = entry; |
| } |
| |
| inline void enqueueAtHead(T* entry) { |
| T* first = head.next; |
| head.next = entry; |
| entry->prev = & head; |
| entry->next = first; |
| first->prev = entry; |
| } |
| |
| inline void dequeue(T* entry) { |
| entry->prev->next = entry->next; |
| entry->next->prev = entry->prev; |
| } |
| |
| inline T* dequeueAtHead() { |
| T* first = head.next; |
| dequeue(first); |
| return first; |
| } |
| }; |
| |
| /* Allocates queue entries and performs reference counting as needed. */ |
| class Allocator { |
| public: |
| Allocator(); |
| |
| ConfigurationChangedEntry* obtainConfigurationChangedEntry(nsecs_t eventTime); |
| KeyEntry* obtainKeyEntry(nsecs_t eventTime, |
| int32_t deviceId, int32_t nature, uint32_t policyFlags, int32_t action, |
| int32_t flags, int32_t keyCode, int32_t scanCode, int32_t metaState, |
| int32_t repeatCount, nsecs_t downTime); |
| MotionEntry* obtainMotionEntry(nsecs_t eventTime, |
| int32_t deviceId, int32_t nature, uint32_t policyFlags, int32_t action, |
| int32_t metaState, int32_t edgeFlags, float xPrecision, float yPrecision, |
| nsecs_t downTime, uint32_t pointerCount, |
| const int32_t* pointerIds, const PointerCoords* pointerCoords); |
| DispatchEntry* obtainDispatchEntry(EventEntry* eventEntry); |
| CommandEntry* obtainCommandEntry(Command command); |
| |
| void releaseEventEntry(EventEntry* entry); |
| void releaseConfigurationChangedEntry(ConfigurationChangedEntry* entry); |
| void releaseKeyEntry(KeyEntry* entry); |
| void releaseMotionEntry(MotionEntry* entry); |
| void releaseDispatchEntry(DispatchEntry* entry); |
| void releaseCommandEntry(CommandEntry* entry); |
| |
| void appendMotionSample(MotionEntry* motionEntry, |
| nsecs_t eventTime, const PointerCoords* pointerCoords); |
| |
| private: |
| Pool<ConfigurationChangedEntry> mConfigurationChangeEntryPool; |
| Pool<KeyEntry> mKeyEntryPool; |
| Pool<MotionEntry> mMotionEntryPool; |
| Pool<MotionSample> mMotionSamplePool; |
| Pool<DispatchEntry> mDispatchEntryPool; |
| Pool<CommandEntry> mCommandEntryPool; |
| |
| void initializeEventEntry(EventEntry* entry, int32_t type, nsecs_t eventTime); |
| }; |
| |
| /* Manages the dispatch state associated with a single input channel. */ |
| class Connection : public RefBase { |
| protected: |
| virtual ~Connection(); |
| |
| public: |
| enum Status { |
| // Everything is peachy. |
| STATUS_NORMAL, |
| // An unrecoverable communication error has occurred. |
| STATUS_BROKEN, |
| // The client is not responding. |
| STATUS_NOT_RESPONDING, |
| // The input channel has been unregistered. |
| STATUS_ZOMBIE |
| }; |
| |
| Status status; |
| sp<InputChannel> inputChannel; |
| InputPublisher inputPublisher; |
| Queue<DispatchEntry> outboundQueue; |
| nsecs_t nextTimeoutTime; // next timeout time (LONG_LONG_MAX if none) |
| |
| nsecs_t lastEventTime; // the time when the event was originally captured |
| nsecs_t lastDispatchTime; // the time when the last event was dispatched |
| nsecs_t lastANRTime; // the time when the last ANR was recorded |
| |
| explicit Connection(const sp<InputChannel>& inputChannel); |
| |
| inline const char* getInputChannelName() const { return inputChannel->getName().string(); } |
| |
| const char* getStatusLabel() const; |
| |
| // Finds a DispatchEntry in the outbound queue associated with the specified event. |
| // Returns NULL if not found. |
| DispatchEntry* findQueuedDispatchEntryForEvent(const EventEntry* eventEntry) const; |
| |
| // Determine whether this connection has a pending synchronous dispatch target. |
| // Since there can only ever be at most one such target at a time, if there is one, |
| // it must be at the tail because nothing else can be enqueued after it. |
| inline bool hasPendingSyncTarget() { |
| return ! outboundQueue.isEmpty() |
| && (outboundQueue.tail.prev->targetFlags & InputTarget::FLAG_SYNC); |
| } |
| |
| // Gets the time since the current event was originally obtained from the input driver. |
| inline double getEventLatencyMillis(nsecs_t currentTime) { |
| return (currentTime - lastEventTime) / 1000000.0; |
| } |
| |
| // Gets the time since the current event entered the outbound dispatch queue. |
| inline double getDispatchLatencyMillis(nsecs_t currentTime) { |
| return (currentTime - lastDispatchTime) / 1000000.0; |
| } |
| |
| // Gets the time since the current event ANR was declared, if applicable. |
| inline double getANRLatencyMillis(nsecs_t currentTime) { |
| return (currentTime - lastANRTime) / 1000000.0; |
| } |
| |
| status_t initialize(); |
| |
| void setNextTimeoutTime(nsecs_t currentTime, nsecs_t timeout); |
| }; |
| |
| sp<InputDispatcherPolicyInterface> mPolicy; |
| |
| Mutex mLock; |
| |
| Allocator mAllocator; |
| sp<PollLoop> mPollLoop; |
| |
| Queue<EventEntry> mInboundQueue; |
| Queue<CommandEntry> mCommandQueue; |
| |
| // All registered connections mapped by receive pipe file descriptor. |
| KeyedVector<int, sp<Connection> > mConnectionsByReceiveFd; |
| |
| // Active connections are connections that have a non-empty outbound queue. |
| // We don't use a ref-counted pointer here because we explicitly abort connections |
| // during unregistration which causes the connection's outbound queue to be cleared |
| // and the connection itself to be deactivated. |
| Vector<Connection*> mActiveConnections; |
| |
| // List of connections that have timed out. Only used by dispatchOnce() |
| // We don't use a ref-counted pointer here because it is not possible for a connection |
| // to be unregistered while processing timed out connections since we hold the lock for |
| // the duration. |
| Vector<Connection*> mTimedOutConnections; |
| |
| // Preallocated key and motion event objects used only to ask the input dispatcher policy |
| // for the targets of an event that is to be dispatched. |
| KeyEvent mReusableKeyEvent; |
| MotionEvent mReusableMotionEvent; |
| |
| // The input targets that were most recently identified for dispatch. |
| // If there is a synchronous event dispatch in progress, the current input targets will |
| // remain unchanged until the dispatch has completed or been aborted. |
| Vector<InputTarget> mCurrentInputTargets; |
| bool mCurrentInputTargetsValid; // false while targets are being recomputed |
| |
| // Event injection and synchronization. |
| Condition mInjectionResultAvailableCondition; |
| Condition mFullySynchronizedCondition; |
| bool isFullySynchronizedLocked(); |
| EventEntry* createEntryFromInputEventLocked(const InputEvent* event); |
| void setInjectionResultLocked(EventEntry* entry, int32_t injectionResult); |
| |
| // Key repeat tracking. |
| // XXX Move this up to the input reader instead. |
| struct KeyRepeatState { |
| KeyEntry* lastKeyEntry; // or null if no repeat |
| nsecs_t nextRepeatTime; |
| } mKeyRepeatState; |
| |
| void resetKeyRepeatLocked(); |
| |
| // Deferred command processing. |
| bool runCommandsLockedInterruptible(); |
| CommandEntry* postCommandLocked(Command command); |
| |
| // Process events that have just been dequeued from the head of the input queue. |
| void processConfigurationChangedLockedInterruptible( |
| nsecs_t currentTime, ConfigurationChangedEntry* entry); |
| void processKeyLockedInterruptible( |
| nsecs_t currentTime, KeyEntry* entry, nsecs_t keyRepeatTimeout); |
| void processKeyRepeatLockedInterruptible( |
| nsecs_t currentTime, nsecs_t keyRepeatTimeout); |
| void processMotionLockedInterruptible( |
| nsecs_t currentTime, MotionEntry* entry); |
| |
| // Identify input targets for an event and dispatch to them. |
| void identifyInputTargetsAndDispatchKeyLockedInterruptible( |
| nsecs_t currentTime, KeyEntry* entry); |
| void identifyInputTargetsAndDispatchMotionLockedInterruptible( |
| nsecs_t currentTime, MotionEntry* entry); |
| void dispatchEventToCurrentInputTargetsLocked( |
| nsecs_t currentTime, EventEntry* entry, bool resumeWithAppendedMotionSample); |
| |
| // Manage the dispatch cycle for a single connection. |
| // These methods are deliberately not Interruptible because doing all of the work |
| // with the mutex held makes it easier to ensure that connection invariants are maintained. |
| // If needed, the methods post commands to run later once the critical bits are done. |
| void prepareDispatchCycleLocked(nsecs_t currentTime, const sp<Connection>& connection, |
| EventEntry* eventEntry, const InputTarget* inputTarget, |
| bool resumeWithAppendedMotionSample); |
| void startDispatchCycleLocked(nsecs_t currentTime, const sp<Connection>& connection); |
| void finishDispatchCycleLocked(nsecs_t currentTime, const sp<Connection>& connection); |
| void timeoutDispatchCycleLocked(nsecs_t currentTime, const sp<Connection>& connection); |
| void resumeAfterTimeoutDispatchCycleLocked(nsecs_t currentTime, |
| const sp<Connection>& connection, nsecs_t newTimeout); |
| void abortDispatchCycleLocked(nsecs_t currentTime, const sp<Connection>& connection, |
| bool broken); |
| static bool handleReceiveCallback(int receiveFd, int events, void* data); |
| |
| // Add or remove a connection to the mActiveConnections vector. |
| void activateConnectionLocked(Connection* connection); |
| void deactivateConnectionLocked(Connection* connection); |
| |
| // Interesting events that we might like to log or tell the framework about. |
| void onDispatchCycleStartedLocked( |
| nsecs_t currentTime, const sp<Connection>& connection); |
| void onDispatchCycleFinishedLocked( |
| nsecs_t currentTime, const sp<Connection>& connection, bool recoveredFromANR); |
| void onDispatchCycleANRLocked( |
| nsecs_t currentTime, const sp<Connection>& connection); |
| void onDispatchCycleBrokenLocked( |
| nsecs_t currentTime, const sp<Connection>& connection); |
| |
| // Outbound policy interactions. |
| void doNotifyInputChannelBrokenLockedInterruptible(CommandEntry* commandEntry); |
| void doNotifyInputChannelANRLockedInterruptible(CommandEntry* commandEntry); |
| void doNotifyInputChannelRecoveredFromANRLockedInterruptible(CommandEntry* commandEntry); |
| }; |
| |
| /* Enqueues and dispatches input events, endlessly. */ |
| class InputDispatcherThread : public Thread { |
| public: |
| explicit InputDispatcherThread(const sp<InputDispatcherInterface>& dispatcher); |
| ~InputDispatcherThread(); |
| |
| private: |
| virtual bool threadLoop(); |
| |
| sp<InputDispatcherInterface> mDispatcher; |
| }; |
| |
| } // namespace android |
| |
| #endif // _UI_INPUT_DISPATCHER_PRIV_H |
