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-rw-r--r--services/companion/java/com/android/server/companion/virtual/VirtualDeviceImpl.java3
-rw-r--r--services/companion/java/com/android/server/companion/virtual/VirtualDeviceManagerService.java65
2 files changed, 67 insertions, 1 deletions
diff --git a/services/companion/java/com/android/server/companion/virtual/VirtualDeviceImpl.java b/services/companion/java/com/android/server/companion/virtual/VirtualDeviceImpl.java
index b338d89a0169..947bd9c57e63 100644
--- a/services/companion/java/com/android/server/companion/virtual/VirtualDeviceImpl.java
+++ b/services/companion/java/com/android/server/companion/virtual/VirtualDeviceImpl.java
@@ -126,7 +126,7 @@ final class VirtualDeviceImpl extends IVirtualDevice.Stub
private final VirtualDeviceManagerService mService;
private final PendingTrampolineCallback mPendingTrampolineCallback;
private final int mOwnerUid;
- private final int mDeviceId;
+ private int mDeviceId;
// Thou shall not hold the mVirtualDeviceLock over the mInputController calls.
// Holding the lock can lead to lock inversion with GlobalWindowManagerLock.
// 1. After display is created the window manager calls into VDM during construction
@@ -404,6 +404,7 @@ final class VirtualDeviceImpl extends IVirtualDevice.Stub
super.close_enforcePermission();
// Remove about-to-be-closed virtual device from the service before butchering it.
mService.removeVirtualDevice(mDeviceId);
+ mDeviceId = Context.DEVICE_ID_INVALID;
VirtualDisplayWrapper[] virtualDisplaysToBeReleased;
synchronized (mVirtualDeviceLock) {
diff --git a/services/companion/java/com/android/server/companion/virtual/VirtualDeviceManagerService.java b/services/companion/java/com/android/server/companion/virtual/VirtualDeviceManagerService.java
index 3b1983f55fb6..eec898f21800 100644
--- a/services/companion/java/com/android/server/companion/virtual/VirtualDeviceManagerService.java
+++ b/services/companion/java/com/android/server/companion/virtual/VirtualDeviceManagerService.java
@@ -66,7 +66,9 @@ import com.android.server.wm.ActivityTaskManagerInternal;
import java.io.FileDescriptor;
import java.io.PrintWriter;
import java.util.ArrayList;
+import java.util.HashSet;
import java.util.List;
+import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.function.Consumer;
@@ -86,6 +88,14 @@ public class VirtualDeviceManagerService extends SystemService {
private static AtomicInteger sNextUniqueIndex = new AtomicInteger(
Context.DEVICE_ID_DEFAULT + 1);
+ private final CompanionDeviceManager.OnAssociationsChangedListener mCdmAssociationListener =
+ new CompanionDeviceManager.OnAssociationsChangedListener() {
+ @Override
+ public void onAssociationsChanged(@NonNull List<AssociationInfo> associations) {
+ syncVirtualDevicesToCdmAssociations(associations);
+ }
+ };
+
/**
* Mapping from device IDs to virtual devices.
*/
@@ -204,11 +214,56 @@ public class VirtualDeviceManagerService extends SystemService {
final long identity = Binder.clearCallingIdentity();
try {
getContext().sendBroadcastAsUser(i, UserHandle.ALL);
+
+ synchronized (mVirtualDeviceManagerLock) {
+ if (mVirtualDevices.size() == 0) {
+ unregisterCdmAssociationListener();
+ }
+ }
} finally {
Binder.restoreCallingIdentity(identity);
}
}
+ private void syncVirtualDevicesToCdmAssociations(List<AssociationInfo> associations) {
+ Set<VirtualDeviceImpl> virtualDevicesToRemove = new HashSet<>();
+ synchronized (mVirtualDeviceManagerLock) {
+ if (mVirtualDevices.size() == 0) {
+ return;
+ }
+
+ Set<Integer> activeAssociationIds = new HashSet<>(associations.size());
+ for (AssociationInfo association : associations) {
+ activeAssociationIds.add(association.getId());
+ }
+
+ for (int i = 0; i < mVirtualDevices.size(); i++) {
+ VirtualDeviceImpl virtualDevice = mVirtualDevices.valueAt(i);
+ if (!activeAssociationIds.contains(virtualDevice.getAssociationId())) {
+ virtualDevicesToRemove.add(virtualDevice);
+ }
+ }
+ }
+
+ for (VirtualDeviceImpl virtualDevice : virtualDevicesToRemove) {
+ virtualDevice.close();
+ }
+
+ }
+
+ private void registerCdmAssociationListener() {
+ final CompanionDeviceManager cdm = getContext().getSystemService(
+ CompanionDeviceManager.class);
+ cdm.addOnAssociationsChangedListener(getContext().getMainExecutor(),
+ mCdmAssociationListener);
+ }
+
+ private void unregisterCdmAssociationListener() {
+ final CompanionDeviceManager cdm = getContext().getSystemService(
+ CompanionDeviceManager.class);
+ cdm.removeOnAssociationsChangedListener(mCdmAssociationListener);
+ }
+
class VirtualDeviceManagerImpl extends IVirtualDeviceManager.Stub {
private final VirtualDeviceImpl.PendingTrampolineCallback mPendingTrampolineCallback =
@@ -254,7 +309,17 @@ public class VirtualDeviceManagerService extends SystemService {
if (associationInfo == null) {
throw new IllegalArgumentException("No association with ID " + associationId);
}
+
synchronized (mVirtualDeviceManagerLock) {
+ if (mVirtualDevices.size() == 0) {
+ final long callindId = Binder.clearCallingIdentity();
+ try {
+ registerCdmAssociationListener();
+ } finally {
+ Binder.restoreCallingIdentity(callindId);
+ }
+ }
+
final UserHandle userHandle = getCallingUserHandle();
final CameraAccessController cameraAccessController =
getCameraAccessController(userHandle);