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am 906e57d8: Merge "Fixed race conditions in GeofenceHardwareImpl." into jb-mr2-dev

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* commit '906e57d8c03f887aab6a48001e9d0bdff9864365':
  Fixed race conditions in GeofenceHardwareImpl.
This commit is contained in:
Zhentao Sun
2013-04-29 11:51:58 -07:00
committed by Android Git Automerger
parent ee4e9530e0 906e57d8c0
commit 460778f104
1 changed files with 65 additions and 41 deletions
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106
core/java/android/hardware/location/GeofenceHardwareImpl.java
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@@ -48,11 +48,11 @@ public final class GeofenceHardwareImpl {
private final Context mContext;
private static GeofenceHardwareImpl sInstance;
private PowerManager.WakeLock mWakeLock;
private SparseArray<IGeofenceHardwareCallback> mGeofences =
private final SparseArray<IGeofenceHardwareCallback> mGeofences =
new SparseArray<IGeofenceHardwareCallback>();
private ArrayList<IGeofenceHardwareMonitorCallback>[] mCallbacks =
private final ArrayList<IGeofenceHardwareMonitorCallback>[] mCallbacks =
new ArrayList[GeofenceHardware.NUM_MONITORS];
private ArrayList<Reaper> mReapers = new ArrayList<Reaper>();
private final ArrayList<Reaper> mReapers = new ArrayList<Reaper>();
private IGpsGeofenceHardware mGpsService;
@@ -64,9 +64,7 @@ public final class GeofenceHardwareImpl {
private static final int REMOVE_GEOFENCE_CALLBACK = 3;
private static final int PAUSE_GEOFENCE_CALLBACK = 4;
private static final int RESUME_GEOFENCE_CALLBACK = 5;
private static final int ADD_GEOFENCE = 6;
private static final int REMOVE_GEOFENCE = 7;
private static final int GEOFENCE_CALLBACK_BINDER_DIED = 8;
private static final int GEOFENCE_CALLBACK_BINDER_DIED = 6;
// mCallbacksHandler message types
private static final int GPS_GEOFENCE_STATUS = 1;
@@ -186,17 +184,22 @@ public final class GeofenceHardwareImpl {
// This API is not thread safe. Operations on the same geofence need to be serialized
// by upper layers
if (DEBUG) {
Log.d(TAG, "addCircularFence: GeofenceId: " + geofenceId + "Latitude: " + latitude +
"Longitude: " + longitude + "Radius: " + radius + "LastTransition: "
+ lastTransition + "MonitorTransition: " + monitorTransitions +
"NotificationResponsiveness: " + notificationResponsivenes +
"UnKnown Timer: " + unknownTimer + "MonitoringType: " + monitoringType);
Log.d(TAG, "addCircularFence: GeofenceId: " + geofenceId + " Latitude: " + latitude +
" Longitude: " + longitude + " Radius: " + radius + " LastTransition: "
+ lastTransition + " MonitorTransition: " + monitorTransitions +
" NotificationResponsiveness: " + notificationResponsivenes +
" UnKnown Timer: " + unknownTimer + " MonitoringType: " + monitoringType);
}
boolean result;
Message m = mGeofenceHandler.obtainMessage(ADD_GEOFENCE, callback);
m.arg1 = geofenceId;
mGeofenceHandler.sendMessage(m);
// The callback must be added before addCircularHardwareGeofence is called otherwise the
// callback might not be called after the geofence is added in the geofence hardware.
// This also means that the callback must be removed if the addCircularHardwareGeofence
// operations is not called or fails.
synchronized (mGeofences) {
mGeofences.put(geofenceId, callback);
}
switch (monitoringType) {
case GeofenceHardware.MONITORING_TYPE_GPS_HARDWARE:
@@ -214,13 +217,13 @@ public final class GeofenceHardwareImpl {
result = false;
}
if (result) {
m = mReaperHandler.obtainMessage(REAPER_GEOFENCE_ADDED, callback);
Message m = mReaperHandler.obtainMessage(REAPER_GEOFENCE_ADDED, callback);
m.arg1 = monitoringType;
mReaperHandler.sendMessage(m);
} else {
m = mGeofenceHandler.obtainMessage(REMOVE_GEOFENCE);
m.arg1 = geofenceId;
mGeofenceHandler.sendMessage(m);
synchronized (mGeofences) {
mGeofences.remove(geofenceId);
}
}
if (DEBUG) Log.d(TAG, "addCircularFence: Result is: " + result);
@@ -232,6 +235,12 @@ public final class GeofenceHardwareImpl {
// by upper layers
if (DEBUG) Log.d(TAG, "Remove Geofence: GeofenceId: " + geofenceId);
boolean result = false;
synchronized (mGeofences) {
if (mGeofences.get(geofenceId) == null) {
throw new IllegalArgumentException("Geofence " + geofenceId + " not registered.");
}
}
switch (monitoringType) {
case GeofenceHardware.MONITORING_TYPE_GPS_HARDWARE:
if (mGpsService == null) return false;
@@ -254,6 +263,11 @@ public final class GeofenceHardwareImpl {
// by upper layers
if (DEBUG) Log.d(TAG, "Pause Geofence: GeofenceId: " + geofenceId);
boolean result;
synchronized (mGeofences) {
if (mGeofences.get(geofenceId) == null) {
throw new IllegalArgumentException("Geofence " + geofenceId + " not registered.");
}
}
switch (monitoringType) {
case GeofenceHardware.MONITORING_TYPE_GPS_HARDWARE:
if (mGpsService == null) return false;
@@ -277,6 +291,11 @@ public final class GeofenceHardwareImpl {
// by upper layers
if (DEBUG) Log.d(TAG, "Resume Geofence: GeofenceId: " + geofenceId);
boolean result;
synchronized (mGeofences) {
if (mGeofences.get(geofenceId) == null) {
throw new IllegalArgumentException("Geofence " + geofenceId + " not registered.");
}
}
switch (monitoringType) {
case GeofenceHardware.MONITORING_TYPE_GPS_HARDWARE:
if (mGpsService == null) return false;
@@ -446,18 +465,11 @@ public final class GeofenceHardwareImpl {
int status;
IGeofenceHardwareCallback callback;
switch (msg.what) {
case ADD_GEOFENCE:
geofenceId = msg.arg1;
callback = (IGeofenceHardwareCallback) msg.obj;
mGeofences.put(geofenceId, callback);
break;
case REMOVE_GEOFENCE:
geofenceId = msg.arg1;
mGeofences.remove(geofenceId);
break;
case ADD_GEOFENCE_CALLBACK:
geofenceId = msg.arg1;
callback = mGeofences.get(geofenceId);
synchronized (mGeofences) {
callback = mGeofences.get(geofenceId);
}
if (callback == null) return;
try {
@@ -467,19 +479,25 @@ public final class GeofenceHardwareImpl {
break;
case REMOVE_GEOFENCE_CALLBACK:
geofenceId = msg.arg1;
callback = mGeofences.get(geofenceId);
synchronized (mGeofences) {
callback = mGeofences.get(geofenceId);
}
if (callback == null) return;
try {
callback.onGeofenceRemove(geofenceId, msg.arg2);
} catch (RemoteException e) {}
mGeofences.remove(geofenceId);
synchronized (mGeofences) {
mGeofences.remove(geofenceId);
}
releaseWakeLock();
break;
case PAUSE_GEOFENCE_CALLBACK:
geofenceId = msg.arg1;
callback = mGeofences.get(geofenceId);
synchronized (mGeofences) {
callback = mGeofences.get(geofenceId);
}
if (callback == null) return;
try {
@@ -490,7 +508,9 @@ public final class GeofenceHardwareImpl {
case RESUME_GEOFENCE_CALLBACK:
geofenceId = msg.arg1;
callback = mGeofences.get(geofenceId);
synchronized (mGeofences) {
callback = mGeofences.get(geofenceId);
}
if (callback == null) return;
try {
@@ -501,12 +521,14 @@ public final class GeofenceHardwareImpl {
case GEOFENCE_TRANSITION_CALLBACK:
GeofenceTransition geofenceTransition = (GeofenceTransition)(msg.obj);
callback = mGeofences.get(geofenceTransition.mGeofenceId);
synchronized (mGeofences) {
callback = mGeofences.get(geofenceTransition.mGeofenceId);
}
if (DEBUG) Log.d(TAG, "GeofenceTransistionCallback: GPS : GeofenceId: " +
geofenceTransition.mGeofenceId +
"Transition: " + geofenceTransition.mTransition +
"Location: " + geofenceTransition.mLocation + ":" + mGeofences);
" Transition: " + geofenceTransition.mTransition +
" Location: " + geofenceTransition.mLocation + ":" + mGeofences);
try {
callback.onGeofenceTransition(
@@ -521,12 +543,14 @@ public final class GeofenceHardwareImpl {
callback = (IGeofenceHardwareCallback) (msg.obj);
if (DEBUG) Log.d(TAG, "Geofence callback reaped:" + callback);
int monitoringType = msg.arg1;
for (int i = 0; i < mGeofences.size(); i++) {
if (mGeofences.valueAt(i).equals(callback)) {
geofenceId = mGeofences.keyAt(i);
removeGeofence(mGeofences.keyAt(i), monitoringType);
mGeofences.remove(geofenceId);
}
synchronized (mGeofences) {
for (int i = 0; i < mGeofences.size(); i++) {
if (mGeofences.valueAt(i).equals(callback)) {
geofenceId = mGeofences.keyAt(i);
removeGeofence(mGeofences.keyAt(i), monitoringType);
mGeofences.remove(geofenceId);
}
}
}
}
}