Merge "Initialize mCurrentPageCanvas on construction" into sc-dev
diff --git a/libs/binder/ndk/include_platform/android/binder_manager.h b/libs/binder/ndk/include_platform/android/binder_manager.h
index e13d4cc..4580751 100644
--- a/libs/binder/ndk/include_platform/android/binder_manager.h
+++ b/libs/binder/ndk/include_platform/android/binder_manager.h
@@ -95,4 +95,52 @@
  */
 bool AServiceManager_isDeclared(const char* instance) __INTRODUCED_IN(31);
 
+/**
+ * Prevent lazy services without client from shutting down their process
+ *
+ * \param persist 'true' if the process should not exit.
+ */
+void AServiceManager_forceLazyServicesPersist(bool persist) __INTRODUCED_IN(31);
+
+/**
+ * Set a callback that is invoked when the active service count (i.e. services with clients)
+ * registered with this process drops to zero (or becomes nonzero).
+ * The callback takes a boolean argument, which is 'true' if there is
+ * at least one service with clients.
+ *
+ * \param callback function to call when the number of services
+ *    with clients changes.
+ * \param context opaque pointer passed back as second parameter to the
+ * callback.
+ *
+ * The callback takes two arguments. The first is a boolean that represents if there are
+ * services with clients (true) or not (false).
+ * The second is the 'context' pointer passed during the registration.
+ *
+ * Callback return value:
+ * - false: Default behavior for lazy services (shut down the process if there
+ *          are no clients).
+ * - true:  Don't shut down the process even if there are no clients.
+ *
+ * This callback gives a chance to:
+ * 1 - Perform some additional operations before exiting;
+ * 2 - Prevent the process from exiting by returning "true" from the callback.
+ */
+void AServiceManager_setActiveServicesCallback(bool (*callback)(bool, void*), void* context)
+        __INTRODUCED_IN(31);
+
+/**
+ * Try to unregister all services previously registered with 'registerService'.
+ *
+ * \return true on success.
+ */
+bool AServiceManager_tryUnregister() __INTRODUCED_IN(31);
+
+/**
+ * Re-register services that were unregistered by 'tryUnregister'.
+ * This method should be called in the case 'tryUnregister' fails
+ * (and should be called on the same thread).
+ */
+void AServiceManager_reRegister() __INTRODUCED_IN(31);
+
 __END_DECLS
diff --git a/libs/binder/ndk/libbinder_ndk.map.txt b/libs/binder/ndk/libbinder_ndk.map.txt
index 9a93bf3..cef0bf3 100644
--- a/libs/binder/ndk/libbinder_ndk.map.txt
+++ b/libs/binder/ndk/libbinder_ndk.map.txt
@@ -120,6 +120,10 @@
     AServiceManager_isDeclared; # apex llndk
     AServiceManager_registerLazyService; # llndk
     AServiceManager_waitForService; # apex llndk
+    AServiceManager_forceLazyServicesPersist; # llndk
+    AServiceManager_setActiveServicesCallback; # llndk
+    AServiceManager_tryUnregister; # llndk
+    AServiceManager_reRegister; # llndk
 
     AIBinder_Class_getDescriptor;
     AIBinder_Weak_clone;
diff --git a/libs/binder/ndk/service_manager.cpp b/libs/binder/ndk/service_manager.cpp
index c782d47..cb0987e 100644
--- a/libs/binder/ndk/service_manager.cpp
+++ b/libs/binder/ndk/service_manager.cpp
@@ -92,3 +92,22 @@
     sp<IServiceManager> sm = defaultServiceManager();
     return sm->isDeclared(String16(instance));
 }
+void AServiceManager_forceLazyServicesPersist(bool persist) {
+    auto serviceRegistrar = android::binder::LazyServiceRegistrar::getInstance();
+    serviceRegistrar.forcePersist(persist);
+}
+void AServiceManager_setActiveServicesCallback(bool (*callback)(bool, void*), void* context) {
+    auto serviceRegistrar = android::binder::LazyServiceRegistrar::getInstance();
+    std::function<bool(bool)> fn = [=](bool hasClients) -> bool {
+        return callback(hasClients, context);
+    };
+    serviceRegistrar.setActiveServicesCallback(fn);
+}
+bool AServiceManager_tryUnregister() {
+    auto serviceRegistrar = android::binder::LazyServiceRegistrar::getInstance();
+    return serviceRegistrar.tryUnregister();
+}
+void AServiceManager_reRegister() {
+    auto serviceRegistrar = android::binder::LazyServiceRegistrar::getInstance();
+    serviceRegistrar.reRegister();
+}
\ No newline at end of file
diff --git a/libs/binder/ndk/tests/IBinderNdkUnitTest.aidl b/libs/binder/ndk/tests/IBinderNdkUnitTest.aidl
index dc77467d..ecbd649 100644
--- a/libs/binder/ndk/tests/IBinderNdkUnitTest.aidl
+++ b/libs/binder/ndk/tests/IBinderNdkUnitTest.aidl
@@ -28,4 +28,7 @@
     void forceFlushCommands();
 
     boolean getsRequestedSid();
+
+    void forcePersist(boolean persist);
+    void setCustomActiveServicesCallback();
 }
diff --git a/libs/binder/ndk/tests/libbinder_ndk_unit_test.cpp b/libs/binder/ndk/tests/libbinder_ndk_unit_test.cpp
index 0d1989e..de1a48d 100644
--- a/libs/binder/ndk/tests/libbinder_ndk_unit_test.cpp
+++ b/libs/binder/ndk/tests/libbinder_ndk_unit_test.cpp
@@ -46,6 +46,11 @@
 constexpr char kExistingNonNdkService[] = "SurfaceFlinger";
 constexpr char kBinderNdkUnitTestService[] = "BinderNdkUnitTest";
 constexpr char kLazyBinderNdkUnitTestService[] = "LazyBinderNdkUnitTest";
+constexpr char kForcePersistNdkUnitTestService[] = "ForcePersistNdkUnitTestService";
+constexpr char kActiveServicesNdkUnitTestService[] = "ActiveServicesNdkUnitTestService";
+
+constexpr unsigned int kShutdownWaitTime = 10;
+constexpr uint64_t kContextTestValue = 0xb4e42fb4d9a1d715;
 
 class MyBinderNdkUnitTest : public aidl::BnBinderNdkUnitTest {
     ndk::ScopedAStatus repeatInt(int32_t in, int32_t* out) {
@@ -76,6 +81,46 @@
         fsync(out);
         return STATUS_OK;
     }
+    ndk::ScopedAStatus forcePersist(bool persist) {
+        AServiceManager_forceLazyServicesPersist(persist);
+        return ndk::ScopedAStatus::ok();
+    }
+    ndk::ScopedAStatus setCustomActiveServicesCallback() {
+        AServiceManager_setActiveServicesCallback(activeServicesCallback, this);
+        return ndk::ScopedAStatus::ok();
+    }
+    static bool activeServicesCallback(bool hasClients, void* context) {
+        if (hasClients) {
+            return false;
+        }
+
+        // Unregister all services
+        if (!AServiceManager_tryUnregister()) {
+            // Prevent shutdown (test will fail)
+            return false;
+        }
+
+        // Re-register all services
+        AServiceManager_reRegister();
+
+        // Unregister again before shutdown
+        if (!AServiceManager_tryUnregister()) {
+            // Prevent shutdown (test will fail)
+            return false;
+        }
+
+        // Check if the context was passed correctly
+        MyBinderNdkUnitTest* service = static_cast<MyBinderNdkUnitTest*>(context);
+        if (service->contextTestValue != kContextTestValue) {
+            // Prevent shutdown (test will fail)
+            return false;
+        }
+
+        exit(EXIT_SUCCESS);
+        // Unreachable
+    }
+
+    uint64_t contextTestValue = kContextTestValue;
 };
 
 int generatedService() {
@@ -168,6 +213,16 @@
     return 1;  // should not return
 }
 
+bool isServiceRunning(const char* serviceName) {
+    AIBinder* binder = AServiceManager_checkService(serviceName);
+    if (binder == nullptr) {
+        return false;
+    }
+    AIBinder_decStrong(binder);
+
+    return true;
+}
+
 TEST(NdkBinder, GetServiceThatDoesntExist) {
     sp<IFoo> foo = IFoo::getService("asdfghkl;");
     EXPECT_EQ(nullptr, foo.get());
@@ -238,10 +293,51 @@
     service = nullptr;
     IPCThreadState::self()->flushCommands();
     // Make sure the service is dead after some time of no use
-    sleep(10);
+    sleep(kShutdownWaitTime);
     ASSERT_EQ(nullptr, AServiceManager_checkService(kLazyBinderNdkUnitTestService));
 }
 
+TEST(NdkBinder, ForcedPersistenceTest) {
+    for (int i = 0; i < 2; i++) {
+        ndk::SpAIBinder binder(AServiceManager_waitForService(kForcePersistNdkUnitTestService));
+        std::shared_ptr<aidl::IBinderNdkUnitTest> service =
+                aidl::IBinderNdkUnitTest::fromBinder(binder);
+        ASSERT_NE(service, nullptr);
+        ASSERT_TRUE(service->forcePersist(i == 0).isOk());
+
+        binder = nullptr;
+        service = nullptr;
+        IPCThreadState::self()->flushCommands();
+
+        sleep(kShutdownWaitTime);
+
+        bool isRunning = isServiceRunning(kForcePersistNdkUnitTestService);
+
+        if (i == 0) {
+            ASSERT_TRUE(isRunning) << "Service shut down when it shouldn't have.";
+        } else {
+            ASSERT_FALSE(isRunning) << "Service failed to shut down.";
+        }
+    }
+}
+
+TEST(NdkBinder, ActiveServicesCallbackTest) {
+    ndk::SpAIBinder binder(AServiceManager_waitForService(kActiveServicesNdkUnitTestService));
+    std::shared_ptr<aidl::IBinderNdkUnitTest> service =
+            aidl::IBinderNdkUnitTest::fromBinder(binder);
+    ASSERT_NE(service, nullptr);
+    ASSERT_TRUE(service->setCustomActiveServicesCallback().isOk());
+
+    binder = nullptr;
+    service = nullptr;
+    IPCThreadState::self()->flushCommands();
+
+    sleep(kShutdownWaitTime);
+
+    ASSERT_FALSE(isServiceRunning(kActiveServicesNdkUnitTestService))
+            << "Service failed to shut down.";
+}
+
 void LambdaOnDeath(void* cookie) {
     auto onDeath = static_cast<std::function<void(void)>*>(cookie);
     (*onDeath)();
@@ -564,10 +660,18 @@
     }
     if (fork() == 0) {
         prctl(PR_SET_PDEATHSIG, SIGHUP);
+        return lazyService(kForcePersistNdkUnitTestService);
+    }
+    if (fork() == 0) {
+        prctl(PR_SET_PDEATHSIG, SIGHUP);
+        return lazyService(kActiveServicesNdkUnitTestService);
+    }
+    if (fork() == 0) {
+        prctl(PR_SET_PDEATHSIG, SIGHUP);
         return generatedService();
     }
 
-    ABinderProcess_setThreadPoolMaxThreadCount(1);  // to recieve death notifications/callbacks
+    ABinderProcess_setThreadPoolMaxThreadCount(1);  // to receive death notifications/callbacks
     ABinderProcess_startThreadPool();
 
     return RUN_ALL_TESTS();
diff --git a/libs/binder/rust/Android.bp b/libs/binder/rust/Android.bp
index fd5f2f5..f804f14 100644
--- a/libs/binder/rust/Android.bp
+++ b/libs/binder/rust/Android.bp
@@ -14,7 +14,11 @@
         darwin: {
             enabled: false,
         }
-    }
+    },
+    apex_available: [
+        "//apex_available:platform",
+        "com.android.virt",
+    ],
 }
 
 rust_library {
@@ -32,7 +36,11 @@
         darwin: {
             enabled: false,
         }
-    }
+    },
+    apex_available: [
+        "//apex_available:platform",
+        "com.android.virt",
+    ],
 }
 
 rust_bindgen {
@@ -78,6 +86,10 @@
             enabled: false,
         },
     },
+    apex_available: [
+        "//apex_available:platform",
+        "com.android.virt",
+    ],
 }
 
 rust_test {
diff --git a/services/inputflinger/dispatcher/InputDispatcher.cpp b/services/inputflinger/dispatcher/InputDispatcher.cpp
index e4237b5..9898e9d 100644
--- a/services/inputflinger/dispatcher/InputDispatcher.cpp
+++ b/services/inputflinger/dispatcher/InputDispatcher.cpp
@@ -1673,9 +1673,7 @@
 
     if (!mKeyIsWaitingForEventsTimeout.has_value()) {
         // Start the timer
-        ALOGD("Waiting to send key to %s because there are unprocessed events that may cause "
-              "focus to change",
-              focusedWindowName);
+        // Wait to send key because there are unprocessed events that may cause focus to change
         mKeyIsWaitingForEventsTimeout = currentTime +
                 std::chrono::duration_cast<std::chrono::nanoseconds>(KEY_WAITING_FOR_EVENTS_TIMEOUT)
                         .count();
@@ -2834,10 +2832,6 @@
  * This includes situations like the soft BACK button key. When the user releases (lifts up the
  * finger) the back button, then navigation bar will inject KEYCODE_BACK with ACTION_UP.
  * Both of those ACTION_UP events would not be logged
- * Monitors (both gesture and global): any gesture monitors or global monitors receiving events
- * will not be logged. This is omitted to reduce the amount of data printed.
- * If you see <none>, it's likely that one of the gesture monitors pilfered the event, and therefore
- * gesture monitor is the only connection receiving the remainder of the gesture.
  */
 void InputDispatcher::updateInteractionTokensLocked(const EventEntry& entry,
                                                     const std::vector<InputTarget>& targets) {
@@ -2867,8 +2861,8 @@
 
         sp<IBinder> token = target.inputChannel->getConnectionToken();
         sp<Connection> connection = getConnectionLocked(token);
-        if (connection == nullptr || connection->monitor) {
-            continue; // We only need to keep track of the non-monitor connections.
+        if (connection == nullptr) {
+            continue;
         }
         newConnectionTokens.insert(std::move(token));
         newConnections.emplace_back(connection);
@@ -2878,12 +2872,12 @@
     }
     mInteractionConnectionTokens = newConnectionTokens;
 
-    std::string windowList;
+    std::string targetList;
     for (const sp<Connection>& connection : newConnections) {
-        windowList += connection->getWindowName() + ", ";
+        targetList += connection->getWindowName() + ", ";
     }
-    std::string message = "Interaction with windows: " + windowList;
-    if (windowList.empty()) {
+    std::string message = "Interaction with: " + targetList;
+    if (targetList.empty()) {
         message += "<none>";
     }
     android_log_event_list(LOGTAG_INPUT_INTERACTION) << message << LOG_ID_EVENTS;
@@ -3221,8 +3215,7 @@
             }
         } else {
             // Monitor channels are never explicitly unregistered.
-            // We do it automatically when the remote endpoint is closed so don't warn
-            // about them.
+            // We do it automatically when the remote endpoint is closed so don't warn about them.
             const bool stillHaveWindowHandle =
                     d->getWindowHandleLocked(connection->inputChannel->getConnectionToken()) !=
                     nullptr;
@@ -4978,7 +4971,7 @@
                                                    bool notify) {
     sp<Connection> connection = getConnectionLocked(connectionToken);
     if (connection == nullptr) {
-        ALOGW("Attempted to unregister already unregistered input channel");
+        // Connection can be removed via socket hang up or an explicit call to 'removeInputChannel'
         return BAD_VALUE;
     }
 
@@ -5042,9 +5035,11 @@
         }
 
         TouchState& state = stateIt->second;
+        std::shared_ptr<InputChannel> requestingChannel;
         std::optional<int32_t> foundDeviceId;
         for (const TouchedMonitor& touchedMonitor : state.gestureMonitors) {
             if (touchedMonitor.monitor.inputChannel->getConnectionToken() == token) {
+                requestingChannel = touchedMonitor.monitor.inputChannel;
                 foundDeviceId = state.deviceId;
             }
         }
@@ -5060,13 +5055,19 @@
                                    "gesture monitor stole pointer stream");
         options.deviceId = deviceId;
         options.displayId = displayId;
+        std::string canceledWindows = "[";
         for (const TouchedWindow& window : state.windows) {
             std::shared_ptr<InputChannel> channel =
                     getInputChannelLocked(window.windowHandle->getToken());
             if (channel != nullptr) {
                 synthesizeCancelationEventsForInputChannelLocked(channel, options);
+                canceledWindows += channel->getName() + ", ";
             }
         }
+        canceledWindows += "]";
+        ALOGI("Monitor %s is stealing touch from %s", requestingChannel->getName().c_str(),
+              canceledWindows.c_str());
+
         // Then clear the current touch state so we stop dispatching to them as well.
         state.filterNonMonitors();
     }
diff --git a/services/surfaceflinger/BufferStateLayer.cpp b/services/surfaceflinger/BufferStateLayer.cpp
index 579130a..f30e1eb 100644
--- a/services/surfaceflinger/BufferStateLayer.cpp
+++ b/services/surfaceflinger/BufferStateLayer.cpp
@@ -236,10 +236,6 @@
 bool BufferStateLayer::applyPendingStates(Layer::State* stateToCommit) {
     mCurrentStateModified = mCurrentState.modified;
     bool stateUpdateAvailable = Layer::applyPendingStates(stateToCommit);
-    if (stateUpdateAvailable && mCallbackHandleAcquireTime != -1) {
-        // Update the acquire fence time if we have a buffer
-        mSurfaceFrame->setAcquireFenceTime(mCallbackHandleAcquireTime);
-    }
     mCurrentStateModified = stateUpdateAvailable && mCurrentStateModified;
     mCurrentState.modified = false;
     return stateUpdateAvailable;
@@ -612,11 +608,12 @@
 }
 
 std::optional<nsecs_t> BufferStateLayer::nextPredictedPresentTime() const {
-    if (!getDrawingState().isAutoTimestamp || !mSurfaceFrame) {
+    const State& drawingState(getDrawingState());
+    if (!drawingState.isAutoTimestamp || !drawingState.bufferSurfaceFrameTX) {
         return std::nullopt;
     }
 
-    return mSurfaceFrame->getPredictions().presentTime;
+    return drawingState.bufferSurfaceFrameTX->getPredictions().presentTime;
 }
 
 status_t BufferStateLayer::updateTexImage(bool& /*recomputeVisibleRegions*/, nsecs_t latchTime,
diff --git a/services/surfaceflinger/Layer.cpp b/services/surfaceflinger/Layer.cpp
index 6a28da3..237aaff 100644
--- a/services/surfaceflinger/Layer.cpp
+++ b/services/surfaceflinger/Layer.cpp
@@ -1583,7 +1583,7 @@
     surfaceFrame->setAcquireFenceTime(postTime);
     const auto fps = mFlinger->mScheduler->getFrameRateOverride(getOwnerUid());
     if (fps) {
-        mSurfaceFrame->setRenderRate(*fps);
+        surfaceFrame->setRenderRate(*fps);
     }
     onSurfaceFrameCreated(surfaceFrame);
     return surfaceFrame;
@@ -1598,7 +1598,7 @@
     surfaceFrame->setActualQueueTime(queueTime);
     const auto fps = mFlinger->mScheduler->getFrameRateOverride(getOwnerUid());
     if (fps) {
-        mSurfaceFrame->setRenderRate(*fps);
+        surfaceFrame->setRenderRate(*fps);
     }
     // TODO(b/178542907): Implement onSurfaceFrameCreated for BQLayer as well.
     onSurfaceFrameCreated(surfaceFrame);
diff --git a/services/surfaceflinger/Layer.h b/services/surfaceflinger/Layer.h
index a1fdc3c..687f473 100644
--- a/services/surfaceflinger/Layer.h
+++ b/services/surfaceflinger/Layer.h
@@ -1145,9 +1145,6 @@
     // Window types from WindowManager.LayoutParams
     const InputWindowInfo::Type mWindowType;
 
-    // Can only be accessed with the SF state lock held.
-    std::shared_ptr<frametimeline::SurfaceFrame> mSurfaceFrame;
-
     // The owner of the layer. If created from a non system process, it will be the calling uid.
     // If created from a system process, the value can be passed in.
     uid_t mOwnerUid;
diff --git a/services/surfaceflinger/SurfaceTracing.cpp b/services/surfaceflinger/SurfaceTracing.cpp
index 1d1f0c5..b4d8a9a 100644
--- a/services/surfaceflinger/SurfaceTracing.cpp
+++ b/services/surfaceflinger/SurfaceTracing.cpp
@@ -71,12 +71,14 @@
 }
 
 void SurfaceTracing::notify(const char* where) {
+    std::scoped_lock lock(mTraceLock);
     if (mEnabled) {
         runner->notify(where);
     }
 }
 
 void SurfaceTracing::notifyLocked(const char* where) {
+    std::scoped_lock lock(mTraceLock);
     if (mEnabled) {
         runner->notifyLocked(where);
     }
diff --git a/services/surfaceflinger/SurfaceTracing.h b/services/surfaceflinger/SurfaceTracing.h
index 497ebd3..15a503d 100644
--- a/services/surfaceflinger/SurfaceTracing.h
+++ b/services/surfaceflinger/SurfaceTracing.h
@@ -81,8 +81,8 @@
 
     SurfaceFlinger& mFlinger;
     mutable std::mutex mTraceLock;
-    bool mEnabled = false;
-    std::unique_ptr<Runner> runner;
+    bool mEnabled GUARDED_BY(mTraceLock) = false;
+    std::unique_ptr<Runner> runner GUARDED_BY(mTraceLock);
 
     struct Config {
         uint32_t flags = TRACE_CRITICAL | TRACE_INPUT | TRACE_SYNC;