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-rw-r--r--services/java/com/android/server/ConnectivityService.java73
-rw-r--r--services/java/com/android/server/WifiService.java41
2 files changed, 78 insertions, 36 deletions
diff --git a/services/java/com/android/server/ConnectivityService.java b/services/java/com/android/server/ConnectivityService.java
index 33df76c..9ff7de6 100644
--- a/services/java/com/android/server/ConnectivityService.java
+++ b/services/java/com/android/server/ConnectivityService.java
@@ -34,6 +34,7 @@ import android.os.Handler;
import android.os.IBinder;
import android.os.Looper;
import android.os.Message;
+import android.os.PowerManager;
import android.os.RemoteException;
import android.os.ServiceManager;
import android.os.SystemProperties;
@@ -67,7 +68,6 @@ public class ConnectivityService extends IConnectivityManager.Stub {
private static final String NETWORK_RESTORE_DELAY_PROP_NAME =
"android.telephony.apn-restore";
-
private Tethering mTethering;
private boolean mTetheringConfigValid = false;
@@ -107,6 +107,11 @@ public class ConnectivityService extends IConnectivityManager.Stub {
private boolean mSystemReady;
private Intent mInitialBroadcast;
+ private PowerManager.WakeLock mNetTransitionWakeLock;
+ private String mNetTransitionWakeLockCausedBy = "";
+ private int mNetTransitionWakeLockSerialNumber;
+ private int mNetTransitionWakeLockTimeout;
+
private static class NetworkAttributes {
/**
* Class for holding settings read from resources.
@@ -197,6 +202,12 @@ public class ConnectivityService extends IConnectivityManager.Stub {
}
mContext = context;
+
+ PowerManager powerManager = (PowerManager)mContext.getSystemService(Context.POWER_SERVICE);
+ mNetTransitionWakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, TAG);
+ mNetTransitionWakeLockTimeout = mContext.getResources().getInteger(
+ com.android.internal.R.integer.config_networkTransitionTimeout);
+
mNetTrackers = new NetworkStateTracker[
ConnectivityManager.MAX_NETWORK_TYPE+1];
mHandler = new MyHandler();
@@ -878,6 +889,12 @@ public class ConnectivityService extends IConnectivityManager.Stub {
"ConnectivityService");
}
+ private void enforceConnectivityInternalPermission() {
+ mContext.enforceCallingOrSelfPermission(
+ android.Manifest.permission.CONNECTIVITY_INTERNAL,
+ "ConnectivityService");
+ }
+
/**
* Handle a {@code DISCONNECTED} event. If this pertains to the non-active
* network, we ignore it. If it is for the active network, we send out a
@@ -1153,9 +1170,17 @@ public class ConnectivityService extends IConnectivityManager.Stub {
Slog.e(TAG, "Network declined teardown request");
return;
}
- if (isFailover) {
- otherNet.releaseWakeLock();
- }
+ }
+ }
+ synchronized (ConnectivityService.this) {
+ // have a new default network, release the transition wakelock in a second
+ // if it's held. The second pause is to allow apps to reconnect over the
+ // new network
+ if (mNetTransitionWakeLock.isHeld()) {
+ mHandler.sendMessageDelayed(mHandler.obtainMessage(
+ NetworkStateTracker.EVENT_CLEAR_NET_TRANSITION_WAKELOCK,
+ mNetTransitionWakeLockSerialNumber, 0),
+ 1000);
}
}
mActiveDefaultNetwork = type;
@@ -1546,6 +1571,13 @@ public class ConnectivityService extends IConnectivityManager.Stub {
}
pw.println();
+ synchronized (this) {
+ pw.println("NetworkTranstionWakeLock is currently " +
+ (mNetTransitionWakeLock.isHeld() ? "" : "not ") + "held.");
+ pw.println("It was last requested for "+mNetTransitionWakeLockCausedBy);
+ }
+ pw.println();
+
mTethering.dump(fd, pw, args);
}
@@ -1637,6 +1669,20 @@ public class ConnectivityService extends IConnectivityManager.Stub {
FeatureUser u = (FeatureUser)msg.obj;
u.expire();
break;
+ case NetworkStateTracker.EVENT_CLEAR_NET_TRANSITION_WAKELOCK:
+ String causedBy = null;
+ synchronized (ConnectivityService.this) {
+ if (msg.arg1 == mNetTransitionWakeLockSerialNumber &&
+ mNetTransitionWakeLock.isHeld()) {
+ mNetTransitionWakeLock.release();
+ causedBy = mNetTransitionWakeLockCausedBy;
+ }
+ }
+ if (causedBy != null) {
+ Slog.d(TAG, "NetTransition Wakelock for " +
+ causedBy + " released by timeout");
+ }
+ break;
}
}
}
@@ -1720,4 +1766,23 @@ public class ConnectivityService extends IConnectivityManager.Stub {
Settings.Secure.TETHER_SUPPORTED, defaultVal) != 0);
return tetherEnabledInSettings && mTetheringConfigValid;
}
+
+ // An API NetworkStateTrackers can call when they lose their network.
+ // This will automatically be cleared after X seconds or a network becomes CONNECTED,
+ // whichever happens first. The timer is started by the first caller and not
+ // restarted by subsequent callers.
+ public void requestNetworkTransitionWakelock(String forWhom) {
+ enforceConnectivityInternalPermission();
+ synchronized (this) {
+ if (mNetTransitionWakeLock.isHeld()) return;
+ mNetTransitionWakeLockSerialNumber++;
+ mNetTransitionWakeLock.acquire();
+ mNetTransitionWakeLockCausedBy = forWhom;
+ }
+ mHandler.sendMessageDelayed(mHandler.obtainMessage(
+ NetworkStateTracker.EVENT_CLEAR_NET_TRANSITION_WAKELOCK,
+ mNetTransitionWakeLockSerialNumber, 0),
+ mNetTransitionWakeLockTimeout);
+ return;
+ }
}
diff --git a/services/java/com/android/server/WifiService.java b/services/java/com/android/server/WifiService.java
index 46a68ac..6d9888b 100644
--- a/services/java/com/android/server/WifiService.java
+++ b/services/java/com/android/server/WifiService.java
@@ -144,19 +144,6 @@ public class WifiService extends IWifiManager.Stub {
private static final String WAKELOCK_TAG = "WifiService";
- /**
- * The maximum amount of time to hold the wake lock after a disconnect
- * caused by stopping the driver. Establishing an EDGE connection has been
- * observed to take about 5 seconds under normal circumstances. This
- * provides a bit of extra margin.
- * <p>
- * See {@link android.provider.Settings.Secure#WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS}.
- * This is the default value if a Settings.Secure value is not present.
- */
- private static final int DEFAULT_WAKELOCK_TIMEOUT = 8000;
-
- // Wake lock used by driver-stop operation
- private static PowerManager.WakeLock sDriverStopWakeLock;
// Wake lock used by other operations
private static PowerManager.WakeLock sWakeLock;
@@ -164,7 +151,6 @@ public class WifiService extends IWifiManager.Stub {
private static final int MESSAGE_DISABLE_WIFI = 1;
private static final int MESSAGE_STOP_WIFI = 2;
private static final int MESSAGE_START_WIFI = 3;
- private static final int MESSAGE_RELEASE_WAKELOCK = 4;
private static final int MESSAGE_UPDATE_STATE = 5;
private static final int MESSAGE_START_ACCESS_POINT = 6;
private static final int MESSAGE_STOP_ACCESS_POINT = 7;
@@ -238,7 +224,6 @@ public class WifiService extends IWifiManager.Stub {
PowerManager powerManager = (PowerManager)mContext.getSystemService(Context.POWER_SERVICE);
sWakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, WAKELOCK_TAG);
- sDriverStopWakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, WAKELOCK_TAG);
mContext.registerReceiver(
new BroadcastReceiver() {
@@ -293,7 +278,10 @@ public class WifiService extends IWifiManager.Stub {
IBinder b = ServiceManager.getService(Context.NETWORKMANAGEMENT_SERVICE);
INetworkManagementService service = INetworkManagementService.Stub.asInterface(b);
- mCm = (ConnectivityManager)mContext.getSystemService(Context.CONNECTIVITY_SERVICE);
+ if (mCm == null) {
+ mCm = (ConnectivityManager)mContext.getSystemService(Context.CONNECTIVITY_SERVICE);
+ }
+
mWifiRegexs = mCm.getTetherableWifiRegexs();
for (String intf : available) {
@@ -1827,19 +1815,12 @@ public class WifiService extends IWifiManager.Stub {
sWakeLock.acquire();
sendStartMessage(strongestLockMode == WifiManager.WIFI_MODE_SCAN_ONLY);
} else if (!mWifiStateTracker.isDriverStopped()) {
- int wakeLockTimeout =
- Settings.Secure.getInt(
- mContext.getContentResolver(),
- Settings.Secure.WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS,
- DEFAULT_WAKELOCK_TIMEOUT);
- /*
- * We are assuming that ConnectivityService can make
- * a transition to cellular data within wakeLockTimeout time.
- * The wakelock is released by the delayed message.
- */
- sDriverStopWakeLock.acquire();
+ if (mCm == null) {
+ mCm = (ConnectivityManager)mContext.
+ getSystemService(Context.CONNECTIVITY_SERVICE);
+ }
+ mCm.requestNetworkTransitionWakelock(TAG);
mWifiHandler.sendEmptyMessage(MESSAGE_STOP_WIFI);
- mWifiHandler.sendEmptyMessageDelayed(MESSAGE_RELEASE_WAKELOCK, wakeLockTimeout);
}
} else {
sWakeLock.acquire();
@@ -1925,10 +1906,6 @@ public class WifiService extends IWifiManager.Stub {
// don't release wakelock
break;
- case MESSAGE_RELEASE_WAKELOCK:
- sDriverStopWakeLock.release();
- break;
-
case MESSAGE_START_ACCESS_POINT:
setWifiApEnabledBlocking(true,
msg.arg1,
generated by cgit v1.1 at 2025-08-18 06:30:00 +0000