commit 8ef41bf34fa3a900a030f4591d457706c854dd31
author Jayachandran C <jayachandranc@google.com> Thu Dec 06 11:12:07 2018 -0800
committer Jayachandran Chinnakkannu <jayachandranc@google.com> Fri Jan 18 22:52:16 2019 +0000
tree 35d8b96bebcf432bbf861b49ca772e4dc701185d
parent 56401a4c74dc6acd307b4e3432bd86414a57176a

Cellular data stall recovery based on networkStatus

This CL introduces cellular data stall recovery based on
network validation result. It still re-uses the existing
recovery steps but the triggers are based on networkStatus
from NetworkMonitor when the network is bad. Each recovery
step is spaced by a configurable grace period (default 3 mins)
to avoid back to back recovery.

This feature is controlled by the following settings. If this
feature is enabled then the legacy data stall detection based
on TrafficStats will automatically be disabled.

Settings.Global.DATA_STALL_RECOVERY_ON_BAD_NETWORK
1 => Enabled (default)
0 => Disabled

Settings.Global.MIN_DURATION_BETWEEN_RECOVERY_STEPS_IN_MS
3 minutes is default value

Bug: 113916551
Test: atest FrameworksTelephonyTests:com.android.internal.telephony.dataconnection.DcTrackerTest

Change-Id: I738fc7ed08803de1114f7a3d79bf278449e94ea8

core/tests/coretests/src/android/provider/SettingsBackupTest.java

diff --git a/core/tests/coretests/src/android/provider/SettingsBackupTest.java b/core/tests/coretests/src/android/provider/SettingsBackupTest.java
index 7f23edf..ddab252 100644
--- a/core/tests/coretests/src/android/provider/SettingsBackupTest.java
+++ b/core/tests/coretests/src/android/provider/SettingsBackupTest.java
@@ -189,6 +189,7 @@
                     Settings.Global.DATA_STALL_CONSECUTIVE_DNS_TIMEOUT_THRESHOLD,
                     Settings.Global.DATA_STALL_EVALUATION_TYPE,
                     Settings.Global.DATA_STALL_MIN_EVALUATE_INTERVAL,
+                    Settings.Global.DATA_STALL_RECOVERY_ON_BAD_NETWORK,
                     Settings.Global.DATA_STALL_VALID_DNS_TIME_THRESHOLD,
                     Settings.Global.DEBUG_APP,
                     Settings.Global.DEBUG_VIEW_ATTRIBUTES,
@@ -292,6 +293,7 @@
                     Settings.Global.MDC_INITIAL_MAX_RETRY,
                     Settings.Global.MHL_INPUT_SWITCHING_ENABLED,
                     Settings.Global.MHL_POWER_CHARGE_ENABLED,
+                    Settings.Global.MIN_DURATION_BETWEEN_RECOVERY_STEPS_IN_MS,
                     Settings.Global.MOBILE_DATA, // Candidate for backup?
                     Settings.Global.MOBILE_DATA_ALWAYS_ON,
                     Settings.Global.MODE_RINGER,