Parse network stats using native code.

Switch to parsing detailed network stats with native code, which
is 71% faster than ProcFileReader.

Change-Id: I2525aaee74d227ce187ba3a74dd08a2b06514deb

1 files changed, 20 insertions, 4 deletions

diff --git a/services/java/com/android/server/NetworkManagementService.java b/services/java/com/android/server/NetworkManagementService.java
index 29e4c43..25ed27a 100644
--- a/services/java/com/android/server/NetworkManagementService.java
+++ b/services/java/com/android/server/NetworkManagementService.java
@@ -1120,19 +1120,31 @@ public class NetworkManagementService extends INetworkManagementService.Stub
     @Override
     public NetworkStats getNetworkStatsSummaryDev() {
         mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG);
-        return mStatsFactory.readNetworkStatsSummaryDev();
+        try {
+            return mStatsFactory.readNetworkStatsSummaryDev();
+        } catch (IOException e) {
+            throw new IllegalStateException(e);
+        }
     }
 
     @Override
     public NetworkStats getNetworkStatsSummaryXt() {
         mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG);
-        return mStatsFactory.readNetworkStatsSummaryXt();
+        try {
+            return mStatsFactory.readNetworkStatsSummaryXt();
+        } catch (IOException e) {
+            throw new IllegalStateException(e);
+        }
     }
 
     @Override
     public NetworkStats getNetworkStatsDetail() {
         mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG);
-        return mStatsFactory.readNetworkStatsDetail(UID_ALL);
+        try {
+            return mStatsFactory.readNetworkStatsDetail(UID_ALL);
+        } catch (IOException e) {
+            throw new IllegalStateException(e);
+        }
     }
 
     @Override
@@ -1289,7 +1301,11 @@ public class NetworkManagementService extends INetworkManagementService.Stub
     @Override
     public NetworkStats getNetworkStatsUidDetail(int uid) {
         mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG);
-        return mStatsFactory.readNetworkStatsDetail(uid);
+        try {
+            return mStatsFactory.readNetworkStatsDetail(uid);
+        } catch (IOException e) {
+            throw new IllegalStateException(e);
+        }
     }
 
     @Override