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Commit 2564d9a4 authored by Mitchell Wills's avatar Mitchell Wills
Browse files

Expose gscan exponential backoff API 

Will be ignored until scan scheduling supports it

Change-Id: I9d392080e6ec8dfa9a998f6c04ec37f9c6dad0b2
parent 80ac37d0

api/system-current.txt

+3 −0
Original line number Diff line number Diff line
@@ -21495,10 +21495,13 @@ 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 {

























wifi/java/android/net/wifi/WifiScanner.java



+22
−0




























Original line number
Diff line number
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@@ -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++) {