Support ANRs from windows that are not tracked by WM
Previously, ANRs for gesture monitors were reported using the pid of the
owner, and ANRs for all windows were reported using its input channel,
which was tracked by WM.
Now, there can be input windows that are not tracked by WM. We unify the
ANR reporting pipeline so that we first try to report an ANR using the
window's input channel. If the ANR reporting fails because the input
channel was not tracked by WM, we fall back on reporting ANR via the
pid of the window owner.
Bug: 210978621
Test: atest inputflinger_tests
Change-Id: I7f71186e042b0fc9df7d342a549ef609ff4862ae
Merged-In: I7f71186e042b0fc9df7d342a549ef609ff4862ae
diff --git a/services/inputflinger/dispatcher/InputDispatcher.cpp b/services/inputflinger/dispatcher/InputDispatcher.cpp
index 58c9303..d982b37 100644
--- a/services/inputflinger/dispatcher/InputDispatcher.cpp
+++ b/services/inputflinger/dispatcher/InputDispatcher.cpp
@@ -5816,35 +5816,21 @@
}
}
-void InputDispatcher::sendMonitorUnresponsiveCommandLocked(int32_t pid, std::string reason) {
- auto command = [this, pid, reason = std::move(reason)]() REQUIRES(mLock) {
- scoped_unlock unlock(mLock);
- mPolicy->notifyMonitorUnresponsive(pid, reason);
- };
- postCommandLocked(std::move(command));
-}
-
void InputDispatcher::sendWindowUnresponsiveCommandLocked(const sp<IBinder>& token,
+ std::optional<int32_t> pid,
std::string reason) {
- auto command = [this, token, reason = std::move(reason)]() REQUIRES(mLock) {
+ auto command = [this, token, pid, reason = std::move(reason)]() REQUIRES(mLock) {
scoped_unlock unlock(mLock);
- mPolicy->notifyWindowUnresponsive(token, reason);
+ mPolicy->notifyWindowUnresponsive(token, pid, reason);
};
postCommandLocked(std::move(command));
}
-void InputDispatcher::sendMonitorResponsiveCommandLocked(int32_t pid) {
- auto command = [this, pid]() REQUIRES(mLock) {
+void InputDispatcher::sendWindowResponsiveCommandLocked(const sp<IBinder>& token,
+ std::optional<int32_t> pid) {
+ auto command = [this, token, pid]() REQUIRES(mLock) {
scoped_unlock unlock(mLock);
- mPolicy->notifyMonitorResponsive(pid);
- };
- postCommandLocked(std::move(command));
-}
-
-void InputDispatcher::sendWindowResponsiveCommandLocked(const sp<IBinder>& connectionToken) {
- auto command = [this, connectionToken]() REQUIRES(mLock) {
- scoped_unlock unlock(mLock);
- mPolicy->notifyWindowResponsive(connectionToken);
+ mPolicy->notifyWindowResponsive(token, pid);
};
postCommandLocked(std::move(command));
}
@@ -5857,22 +5843,21 @@
void InputDispatcher::processConnectionUnresponsiveLocked(const Connection& connection,
std::string reason) {
const sp<IBinder>& connectionToken = connection.inputChannel->getConnectionToken();
+ std::optional<int32_t> pid;
if (connection.monitor) {
ALOGW("Monitor %s is unresponsive: %s", connection.inputChannel->getName().c_str(),
reason.c_str());
- std::optional<int32_t> pid = findMonitorPidByTokenLocked(connectionToken);
- if (!pid.has_value()) {
- ALOGE("Could not find unresponsive monitor for connection %s",
- connection.inputChannel->getName().c_str());
- return;
+ pid = findMonitorPidByTokenLocked(connectionToken);
+ } else {
+ // The connection is a window
+ ALOGW("Window %s is unresponsive: %s", connection.inputChannel->getName().c_str(),
+ reason.c_str());
+ const sp<WindowInfoHandle> handle = getWindowHandleLocked(connectionToken);
+ if (handle != nullptr) {
+ pid = handle->getInfo()->ownerPid;
}
- sendMonitorUnresponsiveCommandLocked(pid.value(), std::move(reason));
- return;
}
- // If not a monitor, must be a window
- ALOGW("Window %s is unresponsive: %s", connection.inputChannel->getName().c_str(),
- reason.c_str());
- sendWindowUnresponsiveCommandLocked(connectionToken, std::move(reason));
+ sendWindowUnresponsiveCommandLocked(connectionToken, pid, std::move(reason));
}
/**
@@ -5880,18 +5865,17 @@
*/
void InputDispatcher::processConnectionResponsiveLocked(const Connection& connection) {
const sp<IBinder>& connectionToken = connection.inputChannel->getConnectionToken();
+ std::optional<int32_t> pid;
if (connection.monitor) {
- std::optional<int32_t> pid = findMonitorPidByTokenLocked(connectionToken);
- if (!pid.has_value()) {
- ALOGE("Could not find responsive monitor for connection %s",
- connection.inputChannel->getName().c_str());
- return;
+ pid = findMonitorPidByTokenLocked(connectionToken);
+ } else {
+ // The connection is a window
+ const sp<WindowInfoHandle> handle = getWindowHandleLocked(connectionToken);
+ if (handle != nullptr) {
+ pid = handle->getInfo()->ownerPid;
}
- sendMonitorResponsiveCommandLocked(pid.value());
- return;
}
- // If not a monitor, must be a window
- sendWindowResponsiveCommandLocked(connectionToken);
+ sendWindowResponsiveCommandLocked(connectionToken, pid);
}
bool InputDispatcher::afterKeyEventLockedInterruptable(const sp<Connection>& connection,