Start combining threads in system process.
This introduces four generic thread that services can
use in the system process:
- Background: part of the framework for all processes, for
work that is purely background (no timing constraint).
- UI: for time-critical display of UI.
- Foreground: normal foreground work.
- IO: performing IO operations.
I went through and moved services into these threads in the
places I felt relatively comfortable about understanding what
they are doing. There are still a bunch more we need to look
at -- lots of networking stuff left, 3 or so different native
daemon connectors which I didn't know how much would block,
audio stuff, etc.
Also updated Watchdog to be aware of and check these new
threads, with a new API for other threads to also participate
in this checking.
Change-Id: Ie2f11061cebde5f018d7383b3a910fbbd11d5e11
diff --git a/services/java/com/android/server/LocationManagerService.java b/services/java/com/android/server/LocationManagerService.java
index 2675309..b162c6b 100644
--- a/services/java/com/android/server/LocationManagerService.java
+++ b/services/java/com/android/server/LocationManagerService.java
@@ -63,6 +63,7 @@
import com.android.internal.content.PackageMonitor;
import com.android.internal.location.ProviderProperties;
import com.android.internal.location.ProviderRequest;
+import com.android.internal.os.BackgroundThread;
import com.android.server.location.GeocoderProxy;
import com.android.server.location.GeofenceProxy;
import com.android.server.location.GeofenceManager;
@@ -93,7 +94,6 @@
public static final boolean D = Log.isLoggable(TAG, Log.DEBUG);
private static final String WAKELOCK_KEY = TAG;
- private static final String THREAD_NAME = TAG;
// Location resolution level: no location data whatsoever
private static final int RESOLUTION_LEVEL_NONE = 0;
@@ -143,7 +143,6 @@
private LocationWorkerHandler mLocationHandler;
private PassiveProvider mPassiveProvider; // track passive provider for special cases
private LocationBlacklist mBlacklist;
- private HandlerThread mHandlerThread;
// --- fields below are protected by mWakeLock ---
private int mPendingBroadcasts;
@@ -216,9 +215,7 @@
mWakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, WAKELOCK_KEY);
// prepare worker thread
- mHandlerThread = new HandlerThread(THREAD_NAME, Process.THREAD_PRIORITY_BACKGROUND);
- mHandlerThread.start();
- mLocationHandler = new LocationWorkerHandler(mHandlerThread.getLooper());
+ mLocationHandler = new LocationWorkerHandler(BackgroundThread.get().getLooper());
// prepare mLocationHandler's dependents
mLocationFudger = new LocationFudger(mContext, mLocationHandler);