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Commit 075698c3 authored by Mitchell Wills's avatar Mitchell Wills Committed by Randy Pan
Browse files

DO NOT MERGE Expose gscan exponential backoff API 

Will be ignored until scan scheduling supports it

Cherry-picked from 2564d9a4
Change-Id: I9d392080e6ec8dfa9a998f6c04ec37f9c6dad0b2
parent 21c748d0

api/system-current.txt

+3 −0
Original line number Diff line number Diff line
@@ -21275,10 +21275,13 @@ 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
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++) {