am 38210df3: Merge change I326c1f7e into eclair (f7394fca) · Commits · e / os / android_frameworks_base

telephony/java/com/android/internal/telephony/cdma/CdmaServiceStateTracker.java

+59 −38

Original line number	Diff line number	Diff line
		@@ -67,6 +67,15 @@ final class CdmaServiceStateTracker extends ServiceStateTracker {
		CdmaCellLocation cellLoc;
		CdmaCellLocation newCellLoc;

		/** if time between NTIZ updates is less than mNitzUpdateSpacing the update may be ignored. */
		private static final int NITZ_UPDATE_SPACING_DEFAULT = 1000 * 60 * 10;
		private int mNitzUpdateSpacing = SystemProperties.getInt("ro.nitz_update_spacing",
		NITZ_UPDATE_SPACING_DEFAULT);

		/** If mNitzUpdateSpacing hasn't been exceeded but update is > mNitzUpdate do the update */
		private static final int NITZ_UPDATE_DIFF_DEFAULT = 2000;
		private int mNitzUpdateDiff = SystemProperties.getInt("ro.nitz_update_diff",
		NITZ_UPDATE_DIFF_DEFAULT);
		/**
		* Values correspond to ServiceStateTracker.DATA_ACCESS_ definitions.
		*/
		@@ -1426,7 +1435,9 @@ final class CdmaServiceStateTracker extends ServiceStateTracker {
		try {
		mWakeLock.acquire();

		if (getAutoTime()) {
		/**
		* Correct the NITZ time by how long its taken to get here.
		*/
		long millisSinceNitzReceived
		= SystemClock.elapsedRealtime() - nitzReceiveTime;

		@@ -1449,22 +1460,37 @@ final class CdmaServiceStateTracker extends ServiceStateTracker {
		// Note: with range checks above, cast to int is safe
		c.add(Calendar.MILLISECOND, (int)millisSinceNitzReceived);

		Log.i(LOG_TAG, "NITZ: Setting time of day to " + c.getTime()
		+ " NITZ receive delay(ms): " + millisSinceNitzReceived
		+ " gained(ms): "
		+ (c.getTimeInMillis() - System.currentTimeMillis())
		+ " from " + nitz);
		if (getAutoTime()) {
		/**
		* Update system time automatically
		*/
		long gained = c.getTimeInMillis() - System.currentTimeMillis();
		long timeSinceLastUpdate = SystemClock.elapsedRealtime() - mSavedAtTime;

		if ((timeSinceLastUpdate > mNitzUpdateSpacing)
		\|\| (Math.abs(gained) > mNitzUpdateDiff)) {
		Log.i(LOG_TAG, "NITZ: Auto updating time of day to " + c.getTime()
		+ " NITZ receive delay=" + millisSinceNitzReceived
		+ "ms gained=" + gained + "ms from " + nitz);

		setAndBroadcastNetworkSetTime(c.getTimeInMillis());
		Log.i(LOG_TAG, "NITZ: after Setting time of day");
		} else {
		Log.i(LOG_TAG, "NITZ: ignore, a previous update was "
		+ timeSinceLastUpdate + "ms ago and gained=" + gained + "ms");
		return;
		}
		SystemProperties.set("gsm.nitz.time", String.valueOf(c.getTimeInMillis()));
		saveNitzTime(c.getTimeInMillis());
		if (Config.LOGV) {
		long end = SystemClock.elapsedRealtime();
		Log.v(LOG_TAG, "NITZ: end=" + end + " dur=" + (end - start));
		}

		/**
		* Update properties and save the time we did the update
		*/
		Log.i(LOG_TAG, "NITZ: update nitz time property");
		SystemProperties.set("gsm.nitz.time", String.valueOf(c.getTimeInMillis()));
		mSavedTime = c.getTimeInMillis();
		mSavedAtTime = SystemClock.elapsedRealtime();
		} finally {
		long end = SystemClock.elapsedRealtime();
		Log.i(LOG_TAG, "NITZ: end=" + end + " dur=" + (end - start));
		mWakeLock.release();
		}
		} catch (RuntimeException ex) {
		@@ -1485,11 +1511,6 @@ final class CdmaServiceStateTracker extends ServiceStateTracker {
		mSavedTimeZone = zoneId;
		}

		private void saveNitzTime(long time) {
		mSavedTime = time;
		mSavedAtTime = SystemClock.elapsedRealtime();
		}

		/**
		* Set the timezone and send out a sticky broadcast so the system can
		* determine if the timezone was set by the carrier.