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Commit 7baa7c80 authored by JP Abgrall's avatar JP Abgrall Committed by Android (Google) Code Review
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Merge "ConnectivityService: add support to set TCP initial rwnd" into klp-dev

parents 8e240af5 3f7f3221

core/java/android/provider/Settings.java

+6 −0
Original line number Diff line number Diff line
@@ -5134,6 +5134,12 @@ public final class Settings { 
         */

        public static final String SMS_SHORT_CODE_RULE = "sms_short_code_rule";



       /**

        * Used to select TCP's default initial receiver window size in segments - defaults to a build config value

        * @hide

        */

       public static final String TCP_DEFAULT_INIT_RWND = "tcp_default_init_rwnd";



       /**

        * Used to disable Tethering on a device - defaults to true

        * @hide

services/java/com/android/server/ConnectivityService.java

+9 −0
Original line number Diff line number Diff line
@@ -2757,6 +2757,15 @@ public class ConnectivityService extends IConnectivityManager.Stub { 
            }

            setBufferSize(bufferSizes);

        }



        final String defaultRwndKey = "net.tcp.default_init_rwnd";

        int defaultRwndValue = SystemProperties.getInt(defaultRwndKey, 0);

        Integer rwndValue = Settings.Global.getInt(mContext.getContentResolver(),

            Settings.Global.TCP_DEFAULT_INIT_RWND, defaultRwndValue);

        final String sysctlKey = "sys.sysctl.tcp_def_init_rwnd";

        if (rwndValue != 0) {

            SystemProperties.set(sysctlKey, rwndValue.toString());

        }

    }



    /**