LineageOS/android_packages_modules_Connectivity
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[SP12] Remove the usage of getVtDataUsage

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Currently NetworkStatsService holding a lock when invoking
getVtDataUsage, which causes a lot of deadlock problems since
Phone will also have binder calls to system_server.

Thus, this change uses a new set of API to break such situation,
that allows VT to report stats asynchronously.

Test: atest FrameworksNetTests FrameworksTelephonyTests
Bug: 130855321
Fix: 143923500

Change-Id: Ifdb8599c3bade09208b4730710fc99da1afad71d
This commit is contained in:
junyulai
2020-01-14 18:41:08 +08:00
parent e486951a92
commit 12ddc700c8
1 changed files with 1 additions and 31 deletions
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32
services/core/java/com/android/server/net/NetworkStatsService.java
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@@ -1249,7 +1249,7 @@ public class NetworkStatsService extends INetworkStatsService.Stub {
final NetworkStats uidSnapshot = getNetworkStatsUidDetail(INTERFACES_ALL);
Trace.traceEnd(TRACE_TAG_NETWORK);
Trace.traceBegin(TRACE_TAG_NETWORK, "snapshotXt");
final NetworkStats xtSnapshot = getNetworkStatsXt();
final NetworkStats xtSnapshot = readNetworkStatsSummaryXt();
Trace.traceEnd(TRACE_TAG_NETWORK);
Trace.traceBegin(TRACE_TAG_NETWORK, "snapshotDev");
final NetworkStats devSnapshot = readNetworkStatsSummaryDev();
@@ -1707,18 +1707,6 @@ public class NetworkStatsService extends INetworkStatsService.Stub {
mUseBpfTrafficStats);
uidSnapshot.combineAllValues(tetherSnapshot);
final TelephonyManager telephonyManager = (TelephonyManager) mContext.getSystemService(
Context.TELEPHONY_SERVICE);
// fold video calling data usage stats into uid snapshot
final NetworkStats vtStats = telephonyManager.getVtDataUsage(STATS_PER_UID);
if (vtStats != null) {
vtStats.filter(UID_ALL, ifaces, TAG_ALL);
mStatsFactory.apply464xlatAdjustments(uidSnapshot, vtStats,
mUseBpfTrafficStats);
uidSnapshot.combineAllValues(vtStats);
}
// get a stale copy of uid stats snapshot provided by providers.
final NetworkStats providerStats = getNetworkStatsFromProviders(STATS_PER_UID);
providerStats.filter(UID_ALL, ifaces, TAG_ALL);
@@ -1730,24 +1718,6 @@ public class NetworkStatsService extends INetworkStatsService.Stub {
return uidSnapshot;
}
/**
* Return snapshot of current XT statistics with video calling data usage statistics.
*/
private NetworkStats getNetworkStatsXt() throws RemoteException {
final NetworkStats xtSnapshot = readNetworkStatsSummaryXt();
final TelephonyManager telephonyManager = (TelephonyManager) mContext.getSystemService(
Context.TELEPHONY_SERVICE);
// Merge video calling data usage into XT
final NetworkStats vtSnapshot = telephonyManager.getVtDataUsage(STATS_PER_IFACE);
if (vtSnapshot != null) {
xtSnapshot.combineAllValues(vtSnapshot);
}
return xtSnapshot;
}
/**
* Return snapshot of current tethering statistics. Will return empty
* {@link NetworkStats} if any problems are encountered.