Fix input channel leak.
Bug: 5156144
Input channels could leak or simply live longer than they should
in some cases.
1. Monitor channels (used by the pointer location overlay) are never
unregistered, so they would leak.
Added code to handle failures in the receive callback by closing
the input channel.
2. The DragState held onto its input window and application handles
even after the input channel was disposed.
Added code to null these handles out when they are no longer needed.
3. Input channels previously used as input event targets would stick
around until the targets were cleared (usually on the next
event).
Added code to detect when the input dispatcher is in
an idle state and to proactively clear the targets then
to ensure that resources are released promptly.
4. Native input window handles held onto the input channel even
after the input window was removed from the input dispatcher.
Consequently, the input channel would not be disposed until
the input window handle itself was freed. Since the input
window handle is held from managed code, this meant that the
window's input channel could stick around until the next GC.
Refactored the input window handle to separate the properties
(info) and identify (handle) state into different objects.
Then modified the dispatcher to release the properties (info)
when no longer needed, including the input channel.
7. The pointer location overlay does not actually use its
standard input channel, only the monitor input channel.
Added INPUT_FEATURE_NO_INPUT_CHANNEL to allow windows to
request that they not be provided with an input channel
at all.
Improved some of the error handling logic to emit the status
code as part of the exception message.
Change-Id: I01988d4391a70c6678c8b0e936ca051af680b1a5
diff --git a/services/input/InputDispatcher.cpp b/services/input/InputDispatcher.cpp
index cf167ae..1eb5f0e 100644
--- a/services/input/InputDispatcher.cpp
+++ b/services/input/InputDispatcher.cpp
@@ -306,7 +306,12 @@
}
}
}
+
+ // Nothing to do if there is no pending event.
if (! mPendingEvent) {
+ if (mActiveConnections.isEmpty()) {
+ dispatchIdleLocked();
+ }
return;
}
} else {
@@ -462,6 +467,16 @@
}
}
+void InputDispatcher::dispatchIdleLocked() {
+#if DEBUG_FOCUS
+ LOGD("Dispatcher idle. There are no pending events or active connections.");
+#endif
+
+ // Reset targets when idle, to release input channels and other resources
+ // they are holding onto.
+ resetTargetsLocked();
+}
+
bool InputDispatcher::enqueueInboundEventLocked(EventEntry* entry) {
bool needWake = mInboundQueue.isEmpty();
mInboundQueue.enqueueAtTail(entry);
@@ -525,20 +540,21 @@
size_t numWindows = mWindowHandles.size();
for (size_t i = 0; i < numWindows; i++) {
sp<InputWindowHandle> windowHandle = mWindowHandles.itemAt(i);
- int32_t flags = windowHandle->layoutParamsFlags;
+ const InputWindowInfo* windowInfo = windowHandle->getInfo();
+ int32_t flags = windowInfo->layoutParamsFlags;
- if (windowHandle->visible) {
- if (!(flags & InputWindowHandle::FLAG_NOT_TOUCHABLE)) {
- bool isTouchModal = (flags & (InputWindowHandle::FLAG_NOT_FOCUSABLE
- | InputWindowHandle::FLAG_NOT_TOUCH_MODAL)) == 0;
- if (isTouchModal || windowHandle->touchableRegionContainsPoint(x, y)) {
+ if (windowInfo->visible) {
+ if (!(flags & InputWindowInfo::FLAG_NOT_TOUCHABLE)) {
+ bool isTouchModal = (flags & (InputWindowInfo::FLAG_NOT_FOCUSABLE
+ | InputWindowInfo::FLAG_NOT_TOUCH_MODAL)) == 0;
+ if (isTouchModal || windowInfo->touchableRegionContainsPoint(x, y)) {
// Found window.
return windowHandle;
}
}
}
- if (flags & InputWindowHandle::FLAG_SYSTEM_ERROR) {
+ if (flags & InputWindowInfo::FLAG_SYSTEM_ERROR) {
// Error window is on top but not visible, so touch is dropped.
return NULL;
}
@@ -1051,9 +1067,15 @@
LOGD("Waiting for application to become ready for input: %s",
getApplicationWindowLabelLocked(applicationHandle, windowHandle).string());
#endif
- nsecs_t timeout = windowHandle != NULL ? windowHandle->dispatchingTimeout :
- applicationHandle != NULL ?
- applicationHandle->dispatchingTimeout : DEFAULT_INPUT_DISPATCHING_TIMEOUT;
+ nsecs_t timeout;
+ if (windowHandle != NULL) {
+ timeout = windowHandle->getDispatchingTimeout(DEFAULT_INPUT_DISPATCHING_TIMEOUT);
+ } else if (applicationHandle != NULL) {
+ timeout = applicationHandle->getDispatchingTimeout(
+ DEFAULT_INPUT_DISPATCHING_TIMEOUT);
+ } else {
+ timeout = DEFAULT_INPUT_DISPATCHING_TIMEOUT;
+ }
mInputTargetWaitCause = INPUT_TARGET_WAIT_CAUSE_APPLICATION_NOT_READY;
mInputTargetWaitStartTime = currentTime;
@@ -1168,7 +1190,7 @@
}
// If the currently focused window is paused then keep waiting.
- if (mFocusedWindowHandle->paused) {
+ if (mFocusedWindowHandle->getInfo()->paused) {
#if DEBUG_FOCUS
LOGD("Waiting because focused window is paused.");
#endif
@@ -1302,21 +1324,22 @@
size_t numWindows = mWindowHandles.size();
for (size_t i = 0; i < numWindows; i++) {
sp<InputWindowHandle> windowHandle = mWindowHandles.itemAt(i);
- int32_t flags = windowHandle->layoutParamsFlags;
+ const InputWindowInfo* windowInfo = windowHandle->getInfo();
+ int32_t flags = windowInfo->layoutParamsFlags;
- if (flags & InputWindowHandle::FLAG_SYSTEM_ERROR) {
+ if (flags & InputWindowInfo::FLAG_SYSTEM_ERROR) {
if (topErrorWindowHandle == NULL) {
topErrorWindowHandle = windowHandle;
}
}
- if (windowHandle->visible) {
- if (! (flags & InputWindowHandle::FLAG_NOT_TOUCHABLE)) {
- isTouchModal = (flags & (InputWindowHandle::FLAG_NOT_FOCUSABLE
- | InputWindowHandle::FLAG_NOT_TOUCH_MODAL)) == 0;
- if (isTouchModal || windowHandle->touchableRegionContainsPoint(x, y)) {
+ if (windowInfo->visible) {
+ if (! (flags & InputWindowInfo::FLAG_NOT_TOUCHABLE)) {
+ isTouchModal = (flags & (InputWindowInfo::FLAG_NOT_FOCUSABLE
+ | InputWindowInfo::FLAG_NOT_TOUCH_MODAL)) == 0;
+ if (isTouchModal || windowInfo->touchableRegionContainsPoint(x, y)) {
if (! screenWasOff
- || (flags & InputWindowHandle::FLAG_TOUCHABLE_WHEN_WAKING)) {
+ || (flags & InputWindowInfo::FLAG_TOUCHABLE_WHEN_WAKING)) {
newTouchedWindowHandle = windowHandle;
}
break; // found touched window, exit window loop
@@ -1324,7 +1347,7 @@
}
if (maskedAction == AMOTION_EVENT_ACTION_DOWN
- && (flags & InputWindowHandle::FLAG_WATCH_OUTSIDE_TOUCH)) {
+ && (flags & InputWindowInfo::FLAG_WATCH_OUTSIDE_TOUCH)) {
int32_t outsideTargetFlags = InputTarget::FLAG_DISPATCH_AS_OUTSIDE;
if (isWindowObscuredAtPointLocked(windowHandle, x, y)) {
outsideTargetFlags |= InputTarget::FLAG_WINDOW_IS_OBSCURED;
@@ -1350,7 +1373,8 @@
}
// Figure out whether splitting will be allowed for this window.
- if (newTouchedWindowHandle != NULL && newTouchedWindowHandle->supportsSplitTouch()) {
+ if (newTouchedWindowHandle != NULL
+ && newTouchedWindowHandle->getInfo()->supportsSplitTouch()) {
// New window supports splitting.
isSplit = true;
} else if (isSplit) {
@@ -1396,7 +1420,7 @@
// within the touched window.
if (!isTouchModal) {
while (sample->next) {
- if (!newHoverWindowHandle->touchableRegionContainsPoint(
+ if (!newHoverWindowHandle->getInfo()->touchableRegionContainsPoint(
sample->next->pointerCoords[0].getAxisValue(AMOTION_EVENT_AXIS_X),
sample->next->pointerCoords[0].getAxisValue(AMOTION_EVENT_AXIS_Y))) {
*outSplitBatchAfterSample = sample;
@@ -1444,15 +1468,15 @@
&& newTouchedWindowHandle != NULL) {
#if DEBUG_FOCUS
LOGD("Touch is slipping out of window %s into window %s.",
- oldTouchedWindowHandle->name.string(),
- newTouchedWindowHandle->name.string());
+ oldTouchedWindowHandle->getName().string(),
+ newTouchedWindowHandle->getName().string());
#endif
// Make a slippery exit from the old window.
mTempTouchState.addOrUpdateWindow(oldTouchedWindowHandle,
InputTarget::FLAG_DISPATCH_AS_SLIPPERY_EXIT, BitSet32(0));
// Make a slippery entrance into the new window.
- if (newTouchedWindowHandle->supportsSplitTouch()) {
+ if (newTouchedWindowHandle->getInfo()->supportsSplitTouch()) {
isSplit = true;
}
@@ -1484,7 +1508,8 @@
// Let the previous window know that the hover sequence is over.
if (mLastHoverWindowHandle != NULL) {
#if DEBUG_HOVER
- LOGD("Sending hover exit event to window %s.", mLastHoverWindowHandle->name.string());
+ LOGD("Sending hover exit event to window %s.",
+ mLastHoverWindowHandle->getName().string());
#endif
mTempTouchState.addOrUpdateWindow(mLastHoverWindowHandle,
InputTarget::FLAG_DISPATCH_AS_HOVER_EXIT, BitSet32(0));
@@ -1493,7 +1518,8 @@
// Let the new window know that the hover sequence is starting.
if (newHoverWindowHandle != NULL) {
#if DEBUG_HOVER
- LOGD("Sending hover enter event to window %s.", newHoverWindowHandle->name.string());
+ LOGD("Sending hover enter event to window %s.",
+ newHoverWindowHandle->getName().string());
#endif
mTempTouchState.addOrUpdateWindow(newHoverWindowHandle,
InputTarget::FLAG_DISPATCH_AS_HOVER_ENTER, BitSet32(0));
@@ -1533,12 +1559,12 @@
if (maskedAction == AMOTION_EVENT_ACTION_DOWN) {
sp<InputWindowHandle> foregroundWindowHandle =
mTempTouchState.getFirstForegroundWindowHandle();
- const int32_t foregroundWindowUid = foregroundWindowHandle->ownerUid;
+ const int32_t foregroundWindowUid = foregroundWindowHandle->getInfo()->ownerUid;
for (size_t i = 0; i < mTempTouchState.windows.size(); i++) {
const TouchedWindow& touchedWindow = mTempTouchState.windows[i];
if (touchedWindow.targetFlags & InputTarget::FLAG_DISPATCH_AS_OUTSIDE) {
sp<InputWindowHandle> inputWindowHandle = touchedWindow.windowHandle;
- if (inputWindowHandle->ownerUid != foregroundWindowUid) {
+ if (inputWindowHandle->getInfo()->ownerUid != foregroundWindowUid) {
mTempTouchState.addOrUpdateWindow(inputWindowHandle,
InputTarget::FLAG_ZERO_COORDS, BitSet32(0));
}
@@ -1551,7 +1577,7 @@
const TouchedWindow& touchedWindow = mTempTouchState.windows[i];
if (touchedWindow.targetFlags & InputTarget::FLAG_FOREGROUND) {
// If the touched window is paused then keep waiting.
- if (touchedWindow.windowHandle->paused) {
+ if (touchedWindow.windowHandle->getInfo()->paused) {
#if DEBUG_FOCUS
LOGD("Waiting because touched window is paused.");
#endif
@@ -1581,10 +1607,11 @@
if (maskedAction == AMOTION_EVENT_ACTION_DOWN) {
sp<InputWindowHandle> foregroundWindowHandle =
mTempTouchState.getFirstForegroundWindowHandle();
- if (foregroundWindowHandle->hasWallpaper) {
+ if (foregroundWindowHandle->getInfo()->hasWallpaper) {
for (size_t i = 0; i < mWindowHandles.size(); i++) {
sp<InputWindowHandle> windowHandle = mWindowHandles.itemAt(i);
- if (windowHandle->layoutParamsType == InputWindowHandle::TYPE_WALLPAPER) {
+ if (windowHandle->getInfo()->layoutParamsType
+ == InputWindowInfo::TYPE_WALLPAPER) {
mTempTouchState.addOrUpdateWindow(windowHandle,
InputTarget::FLAG_WINDOW_IS_OBSCURED
| InputTarget::FLAG_DISPATCH_AS_IS,
@@ -1708,12 +1735,13 @@
int32_t targetFlags, BitSet32 pointerIds) {
mCurrentInputTargets.push();
+ const InputWindowInfo* windowInfo = windowHandle->getInfo();
InputTarget& target = mCurrentInputTargets.editTop();
- target.inputChannel = windowHandle->inputChannel;
+ target.inputChannel = windowInfo->inputChannel;
target.flags = targetFlags;
- target.xOffset = - windowHandle->frameLeft;
- target.yOffset = - windowHandle->frameTop;
- target.scaleFactor = windowHandle->scaleFactor;
+ target.xOffset = - windowInfo->frameLeft;
+ target.yOffset = - windowInfo->frameTop;
+ target.scaleFactor = windowInfo->scaleFactor;
target.pointerIds = pointerIds;
}
@@ -1734,14 +1762,15 @@
bool InputDispatcher::checkInjectionPermission(const sp<InputWindowHandle>& windowHandle,
const InjectionState* injectionState) {
if (injectionState
- && (windowHandle == NULL || windowHandle->ownerUid != injectionState->injectorUid)
+ && (windowHandle == NULL
+ || windowHandle->getInfo()->ownerUid != injectionState->injectorUid)
&& !hasInjectionPermission(injectionState->injectorPid, injectionState->injectorUid)) {
if (windowHandle != NULL) {
LOGW("Permission denied: injecting event from pid %d uid %d to window %s "
"owned by uid %d",
injectionState->injectorPid, injectionState->injectorUid,
- windowHandle->name.string(),
- windowHandle->ownerUid);
+ windowHandle->getName().string(),
+ windowHandle->getInfo()->ownerUid);
} else {
LOGW("Permission denied: injecting event from pid %d uid %d",
injectionState->injectorPid, injectionState->injectorUid);
@@ -1759,8 +1788,10 @@
if (otherHandle == windowHandle) {
break;
}
- if (otherHandle->visible && ! otherHandle->isTrustedOverlay()
- && otherHandle->frameContainsPoint(x, y)) {
+
+ const InputWindowInfo* otherInfo = otherHandle->getInfo();
+ if (otherInfo->visible && ! otherInfo->isTrustedOverlay()
+ && otherInfo->frameContainsPoint(x, y)) {
return true;
}
}
@@ -1769,7 +1800,7 @@
bool InputDispatcher::isWindowFinishedWithPreviousInputLocked(
const sp<InputWindowHandle>& windowHandle) {
- ssize_t connectionIndex = getConnectionIndexLocked(windowHandle->inputChannel);
+ ssize_t connectionIndex = getConnectionIndexLocked(windowHandle->getInputChannel());
if (connectionIndex >= 0) {
sp<Connection> connection = mConnectionsByReceiveFd.valueAt(connectionIndex);
return connection->outboundQueue.isEmpty();
@@ -1783,15 +1814,15 @@
const sp<InputWindowHandle>& windowHandle) {
if (applicationHandle != NULL) {
if (windowHandle != NULL) {
- String8 label(applicationHandle->name);
+ String8 label(applicationHandle->getName());
label.append(" - ");
- label.append(windowHandle->name);
+ label.append(windowHandle->getName());
return label;
} else {
- return applicationHandle->name;
+ return applicationHandle->getName();
}
} else if (windowHandle != NULL) {
- return windowHandle->name;
+ return windowHandle->getName();
} else {
return String8("<unknown application or window>");
}
@@ -2127,7 +2158,7 @@
if (status) {
LOGE("channel '%s' ~ Could not publish key event, "
"status=%d", connection->getInputChannelName(), status);
- abortBrokenDispatchCycleLocked(currentTime, connection);
+ abortBrokenDispatchCycleLocked(currentTime, connection, true /*notify*/);
return;
}
break;
@@ -2190,7 +2221,7 @@
if (status) {
LOGE("channel '%s' ~ Could not publish motion event, "
"status=%d", connection->getInputChannelName(), status);
- abortBrokenDispatchCycleLocked(currentTime, connection);
+ abortBrokenDispatchCycleLocked(currentTime, connection, true /*notify*/);
return;
}
@@ -2223,7 +2254,7 @@
LOGE("channel '%s' ~ Could not append motion sample "
"for a reason other than out of memory, status=%d",
connection->getInputChannelName(), status);
- abortBrokenDispatchCycleLocked(currentTime, connection);
+ abortBrokenDispatchCycleLocked(currentTime, connection, true /*notify*/);
return;
}
}
@@ -2245,7 +2276,7 @@
if (status) {
LOGE("channel '%s' ~ Could not send dispatch signal, status=%d",
connection->getInputChannelName(), status);
- abortBrokenDispatchCycleLocked(currentTime, connection);
+ abortBrokenDispatchCycleLocked(currentTime, connection, true /*notify*/);
return;
}
@@ -2280,7 +2311,7 @@
if (status) {
LOGE("channel '%s' ~ Could not reset publisher, status=%d",
connection->getInputChannelName(), status);
- abortBrokenDispatchCycleLocked(currentTime, connection);
+ abortBrokenDispatchCycleLocked(currentTime, connection, true /*notify*/);
return;
}
@@ -2324,10 +2355,10 @@
}
void InputDispatcher::abortBrokenDispatchCycleLocked(nsecs_t currentTime,
- const sp<Connection>& connection) {
+ const sp<Connection>& connection, bool notify) {
#if DEBUG_DISPATCH_CYCLE
- LOGD("channel '%s' ~ abortBrokenDispatchCycle",
- connection->getInputChannelName());
+ LOGD("channel '%s' ~ abortBrokenDispatchCycle - notify=%s",
+ connection->getInputChannelName(), toString(notify));
#endif
// Clear the outbound queue.
@@ -2338,8 +2369,10 @@
if (connection->status == Connection::STATUS_NORMAL) {
connection->status = Connection::STATUS_BROKEN;
- // Notify other system components.
- onDispatchCycleBrokenLocked(currentTime, connection);
+ if (notify) {
+ // Notify other system components.
+ onDispatchCycleBrokenLocked(currentTime, connection);
+ }
}
}
@@ -2368,36 +2401,41 @@
return 0; // remove the callback
}
- nsecs_t currentTime = now();
-
+ bool notify;
sp<Connection> connection = d->mConnectionsByReceiveFd.valueAt(connectionIndex);
- if (events & (ALOOPER_EVENT_ERROR | ALOOPER_EVENT_HANGUP)) {
- LOGE("channel '%s' ~ Consumer closed input channel or an error occurred. "
- "events=0x%x", connection->getInputChannelName(), events);
- d->abortBrokenDispatchCycleLocked(currentTime, connection);
- d->runCommandsLockedInterruptible();
- return 0; // remove the callback
- }
+ if (!(events & (ALOOPER_EVENT_ERROR | ALOOPER_EVENT_HANGUP))) {
+ if (!(events & ALOOPER_EVENT_INPUT)) {
+ LOGW("channel '%s' ~ Received spurious callback for unhandled poll event. "
+ "events=0x%x", connection->getInputChannelName(), events);
+ return 1;
+ }
- if (! (events & ALOOPER_EVENT_INPUT)) {
- LOGW("channel '%s' ~ Received spurious callback for unhandled poll event. "
- "events=0x%x", connection->getInputChannelName(), events);
- return 1;
- }
+ bool handled = false;
+ status_t status = connection->inputPublisher.receiveFinishedSignal(&handled);
+ if (!status) {
+ nsecs_t currentTime = now();
+ d->finishDispatchCycleLocked(currentTime, connection, handled);
+ d->runCommandsLockedInterruptible();
+ return 1;
+ }
- bool handled = false;
- status_t status = connection->inputPublisher.receiveFinishedSignal(&handled);
- if (status) {
LOGE("channel '%s' ~ Failed to receive finished signal. status=%d",
connection->getInputChannelName(), status);
- d->abortBrokenDispatchCycleLocked(currentTime, connection);
- d->runCommandsLockedInterruptible();
- return 0; // remove the callback
+ notify = true;
+ } else {
+ // Monitor channels are never explicitly unregistered.
+ // We do it automatically when the remote endpoint is closed so don't warn
+ // about them.
+ notify = !connection->monitor;
+ if (notify) {
+ LOGW("channel '%s' ~ Consumer closed input channel or an error occurred. "
+ "events=0x%x", connection->getInputChannelName(), events);
+ }
}
- d->finishDispatchCycleLocked(currentTime, connection, handled);
- d->runCommandsLockedInterruptible();
- return 1;
+ // Unregister the channel.
+ d->unregisterInputChannelLocked(connection->inputChannel, notify);
+ return 0; // remove the callback
} // release lock
}
@@ -2450,9 +2488,10 @@
InputTarget target;
sp<InputWindowHandle> windowHandle = getWindowHandleLocked(connection->inputChannel);
if (windowHandle != NULL) {
- target.xOffset = -windowHandle->frameLeft;
- target.yOffset = -windowHandle->frameTop;
- target.scaleFactor = windowHandle->scaleFactor;
+ const InputWindowInfo* windowInfo = windowHandle->getInfo();
+ target.xOffset = -windowInfo->frameLeft;
+ target.yOffset = -windowInfo->frameTop;
+ target.scaleFactor = windowInfo->scaleFactor;
} else {
target.xOffset = 0;
target.yOffset = 0;
@@ -2854,9 +2893,9 @@
#if DEBUG_BATCHING
LOGD("Not streaming hover move because the last hovered window "
"is '%s' but the currently hovered window is '%s'.",
- mLastHoverWindowHandle->name.string(),
+ mLastHoverWindowHandle->getName().string(),
hoverWindowHandle != NULL
- ? hoverWindowHandle->name.string() : "<null>");
+ ? hoverWindowHandle->getName().string() : "<null>");
#endif
goto NoBatchingOrStreaming;
}
@@ -3183,7 +3222,7 @@
size_t numWindows = mWindowHandles.size();
for (size_t i = 0; i < numWindows; i++) {
const sp<InputWindowHandle>& windowHandle = mWindowHandles.itemAt(i);
- if (windowHandle->inputChannel == inputChannel) {
+ if (windowHandle->getInputChannel() == inputChannel) {
return windowHandle;
}
}
@@ -3208,17 +3247,18 @@
{ // acquire lock
AutoMutex _l(mLock);
+ Vector<sp<InputWindowHandle> > oldWindowHandles = mWindowHandles;
mWindowHandles = inputWindowHandles;
sp<InputWindowHandle> newFocusedWindowHandle;
bool foundHoveredWindow = false;
for (size_t i = 0; i < mWindowHandles.size(); i++) {
const sp<InputWindowHandle>& windowHandle = mWindowHandles.itemAt(i);
- if (!windowHandle->update() || windowHandle->inputChannel == NULL) {
+ if (!windowHandle->updateInfo() || windowHandle->getInputChannel() == NULL) {
mWindowHandles.removeAt(i--);
continue;
}
- if (windowHandle->hasFocus) {
+ if (windowHandle->getInfo()->hasFocus) {
newFocusedWindowHandle = windowHandle;
}
if (windowHandle == mLastHoverWindowHandle) {
@@ -3234,19 +3274,20 @@
if (mFocusedWindowHandle != NULL) {
#if DEBUG_FOCUS
LOGD("Focus left window: %s",
- mFocusedWindowHandle->name.string());
+ mFocusedWindowHandle->getName().string());
#endif
- if (mFocusedWindowHandle->inputChannel != NULL) {
+ sp<InputChannel> focusedInputChannel = mFocusedWindowHandle->getInputChannel();
+ if (focusedInputChannel != NULL) {
CancelationOptions options(CancelationOptions::CANCEL_NON_POINTER_EVENTS,
"focus left window");
synthesizeCancelationEventsForInputChannelLocked(
- mFocusedWindowHandle->inputChannel, options);
+ focusedInputChannel, options);
}
}
if (newFocusedWindowHandle != NULL) {
#if DEBUG_FOCUS
LOGD("Focus entered window: %s",
- newFocusedWindowHandle->name.string());
+ newFocusedWindowHandle->getName().string());
#endif
}
mFocusedWindowHandle = newFocusedWindowHandle;
@@ -3256,17 +3297,34 @@
TouchedWindow& touchedWindow = mTouchState.windows.editItemAt(i);
if (!hasWindowHandleLocked(touchedWindow.windowHandle)) {
#if DEBUG_FOCUS
- LOGD("Touched window was removed: %s", touchedWindow.windowHandle->name.string());
+ LOGD("Touched window was removed: %s",
+ touchedWindow.windowHandle->getName().string());
#endif
- if (touchedWindow.windowHandle->inputChannel != NULL) {
+ sp<InputChannel> touchedInputChannel =
+ touchedWindow.windowHandle->getInputChannel();
+ if (touchedInputChannel != NULL) {
CancelationOptions options(CancelationOptions::CANCEL_POINTER_EVENTS,
"touched window was removed");
synthesizeCancelationEventsForInputChannelLocked(
- touchedWindow.windowHandle->inputChannel, options);
+ touchedInputChannel, options);
}
mTouchState.windows.removeAt(i--);
}
}
+
+ // Release information for windows that are no longer present.
+ // This ensures that unused input channels are released promptly.
+ // Otherwise, they might stick around until the window handle is destroyed
+ // which might not happen until the next GC.
+ for (size_t i = 0; i < oldWindowHandles.size(); i++) {
+ const sp<InputWindowHandle>& oldWindowHandle = oldWindowHandles.itemAt(i);
+ if (!hasWindowHandleLocked(oldWindowHandle)) {
+#if DEBUG_FOCUS
+ LOGD("Window went away: %s", oldWindowHandle->getName().string());
+#endif
+ oldWindowHandle->releaseInfo();
+ }
+ }
} // release lock
// Wake up poll loop since it may need to make new input dispatching choices.
@@ -3281,15 +3339,17 @@
{ // acquire lock
AutoMutex _l(mLock);
- if (inputApplicationHandle != NULL && inputApplicationHandle->update()) {
+ if (inputApplicationHandle != NULL && inputApplicationHandle->updateInfo()) {
if (mFocusedApplicationHandle != inputApplicationHandle) {
if (mFocusedApplicationHandle != NULL) {
resetTargetsLocked();
+ mFocusedApplicationHandle->releaseInfo();
}
mFocusedApplicationHandle = inputApplicationHandle;
}
} else if (mFocusedApplicationHandle != NULL) {
resetTargetsLocked();
+ mFocusedApplicationHandle->releaseInfo();
mFocusedApplicationHandle.clear();
}
@@ -3469,13 +3529,14 @@
if (mFocusedApplicationHandle != NULL) {
dump.appendFormat(INDENT "FocusedApplication: name='%s', dispatchingTimeout=%0.3fms\n",
- mFocusedApplicationHandle->name.string(),
- mFocusedApplicationHandle->dispatchingTimeout / 1000000.0);
+ mFocusedApplicationHandle->getName().string(),
+ mFocusedApplicationHandle->getDispatchingTimeout(
+ DEFAULT_INPUT_DISPATCHING_TIMEOUT) / 1000000.0);
} else {
dump.append(INDENT "FocusedApplication: <null>\n");
}
dump.appendFormat(INDENT "FocusedWindow: name='%s'\n",
- mFocusedWindowHandle != NULL ? mFocusedWindowHandle->name.string() : "<null>");
+ mFocusedWindowHandle != NULL ? mFocusedWindowHandle->getName().string() : "<null>");
dump.appendFormat(INDENT "TouchDown: %s\n", toString(mTouchState.down));
dump.appendFormat(INDENT "TouchSplit: %s\n", toString(mTouchState.split));
@@ -3486,7 +3547,8 @@
for (size_t i = 0; i < mTouchState.windows.size(); i++) {
const TouchedWindow& touchedWindow = mTouchState.windows[i];
dump.appendFormat(INDENT2 "%d: name='%s', pointerIds=0x%0x, targetFlags=0x%x\n",
- i, touchedWindow.windowHandle->name.string(), touchedWindow.pointerIds.value,
+ i, touchedWindow.windowHandle->getName().string(),
+ touchedWindow.pointerIds.value,
touchedWindow.targetFlags);
}
} else {
@@ -3497,26 +3559,28 @@
dump.append(INDENT "Windows:\n");
for (size_t i = 0; i < mWindowHandles.size(); i++) {
const sp<InputWindowHandle>& windowHandle = mWindowHandles.itemAt(i);
+ const InputWindowInfo* windowInfo = windowHandle->getInfo();
+
dump.appendFormat(INDENT2 "%d: name='%s', paused=%s, hasFocus=%s, hasWallpaper=%s, "
"visible=%s, canReceiveKeys=%s, flags=0x%08x, type=0x%08x, layer=%d, "
"frame=[%d,%d][%d,%d], scale=%f, "
"touchableRegion=",
- i, windowHandle->name.string(),
- toString(windowHandle->paused),
- toString(windowHandle->hasFocus),
- toString(windowHandle->hasWallpaper),
- toString(windowHandle->visible),
- toString(windowHandle->canReceiveKeys),
- windowHandle->layoutParamsFlags, windowHandle->layoutParamsType,
- windowHandle->layer,
- windowHandle->frameLeft, windowHandle->frameTop,
- windowHandle->frameRight, windowHandle->frameBottom,
- windowHandle->scaleFactor);
- dumpRegion(dump, windowHandle->touchableRegion);
- dump.appendFormat(", inputFeatures=0x%08x", windowHandle->inputFeatures);
+ i, windowInfo->name.string(),
+ toString(windowInfo->paused),
+ toString(windowInfo->hasFocus),
+ toString(windowInfo->hasWallpaper),
+ toString(windowInfo->visible),
+ toString(windowInfo->canReceiveKeys),
+ windowInfo->layoutParamsFlags, windowInfo->layoutParamsType,
+ windowInfo->layer,
+ windowInfo->frameLeft, windowInfo->frameTop,
+ windowInfo->frameRight, windowInfo->frameBottom,
+ windowInfo->scaleFactor);
+ dumpRegion(dump, windowInfo->touchableRegion);
+ dump.appendFormat(", inputFeatures=0x%08x", windowInfo->inputFeatures);
dump.appendFormat(", ownerPid=%d, ownerUid=%d, dispatchingTimeout=%0.3fms\n",
- windowHandle->ownerPid, windowHandle->ownerUid,
- windowHandle->dispatchingTimeout / 1000000.0);
+ windowInfo->ownerPid, windowInfo->ownerUid,
+ windowInfo->dispatchingTimeout / 1000000.0);
}
} else {
dump.append(INDENT "Windows: <none>\n");
@@ -3572,7 +3636,7 @@
return BAD_VALUE;
}
- sp<Connection> connection = new Connection(inputChannel, inputWindowHandle);
+ sp<Connection> connection = new Connection(inputChannel, inputWindowHandle, monitor);
status_t status = connection->initialize();
if (status) {
LOGE("Failed to initialize input publisher for input channel '%s', status=%d",
@@ -3602,31 +3666,10 @@
{ // acquire lock
AutoMutex _l(mLock);
- ssize_t connectionIndex = getConnectionIndexLocked(inputChannel);
- if (connectionIndex < 0) {
- LOGW("Attempted to unregister already unregistered input channel '%s'",
- inputChannel->getName().string());
- return BAD_VALUE;
+ status_t status = unregisterInputChannelLocked(inputChannel, false /*notify*/);
+ if (status) {
+ return status;
}
-
- sp<Connection> connection = mConnectionsByReceiveFd.valueAt(connectionIndex);
- mConnectionsByReceiveFd.removeItemsAt(connectionIndex);
-
- connection->status = Connection::STATUS_ZOMBIE;
-
- for (size_t i = 0; i < mMonitoringChannels.size(); i++) {
- if (mMonitoringChannels[i] == inputChannel) {
- mMonitoringChannels.removeAt(i);
- break;
- }
- }
-
- mLooper->removeFd(inputChannel->getReceivePipeFd());
-
- nsecs_t currentTime = now();
- abortBrokenDispatchCycleLocked(currentTime, connection);
-
- runCommandsLockedInterruptible();
} // release lock
// Wake the poll loop because removing the connection may have changed the current
@@ -3635,6 +3678,42 @@
return OK;
}
+status_t InputDispatcher::unregisterInputChannelLocked(const sp<InputChannel>& inputChannel,
+ bool notify) {
+ ssize_t connectionIndex = getConnectionIndexLocked(inputChannel);
+ if (connectionIndex < 0) {
+ LOGW("Attempted to unregister already unregistered input channel '%s'",
+ inputChannel->getName().string());
+ return BAD_VALUE;
+ }
+
+ sp<Connection> connection = mConnectionsByReceiveFd.valueAt(connectionIndex);
+ mConnectionsByReceiveFd.removeItemsAt(connectionIndex);
+
+ if (connection->monitor) {
+ removeMonitorChannelLocked(inputChannel);
+ }
+
+ mLooper->removeFd(inputChannel->getReceivePipeFd());
+
+ nsecs_t currentTime = now();
+ abortBrokenDispatchCycleLocked(currentTime, connection, notify);
+
+ runCommandsLockedInterruptible();
+
+ connection->status = Connection::STATUS_ZOMBIE;
+ return OK;
+}
+
+void InputDispatcher::removeMonitorChannelLocked(const sp<InputChannel>& inputChannel) {
+ for (size_t i = 0; i < mMonitoringChannels.size(); i++) {
+ if (mMonitoringChannels[i] == inputChannel) {
+ mMonitoringChannels.removeAt(i);
+ break;
+ }
+ }
+}
+
ssize_t InputDispatcher::getConnectionIndexLocked(const sp<InputChannel>& inputChannel) {
ssize_t connectionIndex = mConnectionsByReceiveFd.indexOfKey(inputChannel->getReceivePipeFd());
if (connectionIndex >= 0) {
@@ -3736,7 +3815,7 @@
resumeAfterTargetsNotReadyTimeoutLocked(newTimeout,
commandEntry->inputWindowHandle != NULL
- ? commandEntry->inputWindowHandle->inputChannel : NULL);
+ ? commandEntry->inputWindowHandle->getInputChannel() : NULL);
}
void InputDispatcher::doInterceptKeyBeforeDispatchingLockedInterruptible(
@@ -4495,8 +4574,9 @@
// --- InputDispatcher::Connection ---
InputDispatcher::Connection::Connection(const sp<InputChannel>& inputChannel,
- const sp<InputWindowHandle>& inputWindowHandle) :
+ const sp<InputWindowHandle>& inputWindowHandle, bool monitor) :
status(STATUS_NORMAL), inputChannel(inputChannel), inputWindowHandle(inputWindowHandle),
+ monitor(monitor),
inputPublisher(inputChannel),
lastEventTime(LONG_LONG_MAX), lastDispatchTime(LONG_LONG_MAX) {
}
@@ -4627,8 +4707,9 @@
for (size_t i = 0; i < windows.size(); i++) {
const TouchedWindow& window = windows.itemAt(i);
if (window.targetFlags & InputTarget::FLAG_FOREGROUND) {
- if (haveSlipperyForegroundWindow || !(window.windowHandle->layoutParamsFlags
- & InputWindowHandle::FLAG_SLIPPERY)) {
+ if (haveSlipperyForegroundWindow
+ || !(window.windowHandle->getInfo()->layoutParamsFlags
+ & InputWindowInfo::FLAG_SLIPPERY)) {
return false;
}
haveSlipperyForegroundWindow = true;