commit 751d12e3837e32d4e0bb6aa3d055f413ab620c71
author JP Abgrall <jpa@google.com> Mon May 31 06:57:10 2021 +0000
committer Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com> Mon May 31 06:57:10 2021 +0000
tree a97edfa947810634515f5e06005ba40a92a9b0bf
parent 82496e50ce86412354cceab080d6dedcf310046a
parent d3bc570b7b26eb51981cd16c87cf3790e0734339

ConnectivityService: add support to set TCP initial rwnd am: d3bc570b7b

Original change: undetermined

Change-Id: I8b4bd1aaf800ce9383637950f4cdc50de86bbf53

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

diff --git a/services/core/java/com/android/server/ConnectivityService.java b/services/core/java/com/android/server/ConnectivityService.java
index b56923f..342336e 100644
--- a/services/core/java/com/android/server/ConnectivityService.java
+++ b/services/core/java/com/android/server/ConnectivityService.java
@@ -2669,6 +2669,15 @@
             }
             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());
+        }
     }
 
     /**