Merge "Expose gscan exponential backoff API" (48241ddc) · Commits · e / os / android_frameworks_base

api/system-current.txt

+3 −0

Original line number	Diff line number	Diff line
		@@ -21515,10 +21515,13 @@ package android.net.wifi {
		method public void writeToParcel(android.os.Parcel, int);
		field public int band;
		field public android.net.wifi.WifiScanner.ChannelSpec[] channels;
		field public int exponent;
		field public int maxPeriodInMs;
		field public int maxScansToCache;
		field public int numBssidsPerScan;
		field public int periodInMs;
		field public int reportEvents;
		field public int stepCount;
		}

		public static abstract interface WifiScanner.WifiChangeListener implements android.net.wifi.WifiScanner.ActionListener {

+22 −0

Original line number	Diff line number	Diff line
		@@ -168,6 +168,22 @@ public class WifiScanner {
		* to wake up at fixed interval
		*/
		public int maxScansToCache;
		/**
		* if maxPeriodInMs is non zero or different than period, then this bucket is
		* an exponential backoff bucket and the scan period will grow exponentially
		* as per formula: actual_period(N) = period ^ (N/(step_count+1))
		* to a maximum period of max_period.
		*/
		public int maxPeriodInMs;
		/**
		* for exponential back off bucket: multiplier: new_period=old_period*exponent
		*/
		public int exponent;
		/**
		* for exponential back off bucket, number of scans performed at a given
		* period and until the exponent is applied
		*/
		public int stepCount;

		/** Implement the Parcelable interface {@hide} */
		public int describeContents() {
		@@ -181,6 +197,9 @@ public class WifiScanner {
		dest.writeInt(reportEvents);
		dest.writeInt(numBssidsPerScan);
		dest.writeInt(maxScansToCache);
		dest.writeInt(maxPeriodInMs);
		dest.writeInt(exponent);
		dest.writeInt(stepCount);

		if (channels != null) {
		dest.writeInt(channels.length);
		@@ -206,6 +225,9 @@ public class WifiScanner {
		settings.reportEvents = in.readInt();
		settings.numBssidsPerScan = in.readInt();
		settings.maxScansToCache = in.readInt();
		settings.maxPeriodInMs = in.readInt();
		settings.exponent = in.readInt();
		settings.stepCount = in.readInt();
		int num_channels = in.readInt();
		settings.channels = new ChannelSpec[num_channels];
		for (int i = 0; i < num_channels; i++) {