Better logging infrastructure in OffloadHardwareInterface am: 248e736f11 (6f76e7f9) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/connectivity/tethering/OffloadHardwareInterface.java

+37 −8

Original line number	Diff line number	Diff line
		@@ -76,6 +76,10 @@ public class OffloadHardwareInterface {
		}
		}

		final String logmsg = String.format("initOffloadControl(%s)",
		(controlCb == null) ? "null"
		: "0x" + Integer.toHexString(System.identityHashCode(controlCb)));

		mTetheringOffloadCallback = new TetheringOffloadCallback(mHandler, mControlCallback);
		final CbResults results = new CbResults();
		try {
		@@ -86,11 +90,11 @@ public class OffloadHardwareInterface {
		results.errMsg = errMsg;
		});
		} catch (RemoteException e) {
		mLog.e("failed to initOffload: " + e);
		record(logmsg, e);
		return false;
		}

		if (!results.success) mLog.e("initOffload failed: " + results.errMsg);
		record(logmsg, results);
		return results.success;
		}

		@@ -108,14 +112,18 @@ public class OffloadHardwareInterface {
		mOffloadControl = null;
		mTetheringOffloadCallback = null;
		mControlCallback = null;
		mLog.log("stopOffloadControl()");
		}

		public boolean setUpstreamParameters(
		String iface, String v4addr, String v4gateway, ArrayList<String> v6gws) {
		iface = iface != null ? iface : NO_INTERFACE_NAME;
		v4addr = v4addr != null ? v4addr : NO_IPV4_ADDRESS;
		v4gateway = v4gateway != null ? v4gateway : NO_IPV4_GATEWAY;
		v6gws = v6gws != null ? v6gws : new ArrayList<>();
		iface = (iface != null) ? iface : NO_INTERFACE_NAME;
		v4addr = (v4addr != null) ? v4addr : NO_IPV4_ADDRESS;
		v4gateway = (v4gateway != null) ? v4gateway : NO_IPV4_GATEWAY;
		v6gws = (v6gws != null) ? v6gws : new ArrayList<>();

		final String logmsg = String.format("setUpstreamParameters(%s, %s, %s, [%s])",
		iface, v4addr, v4gateway, String.join(",", v6gws));

		final CbResults results = new CbResults();
		try {
		@@ -126,14 +134,27 @@ public class OffloadHardwareInterface {
		results.errMsg = errMsg;
		});
		} catch (RemoteException e) {
		mLog.e("failed to setUpstreamParameters: " + e);
		record(logmsg, e);
		return false;
		}

		if (!results.success) mLog.e("setUpstreamParameters failed: " + results.errMsg);
		record(logmsg, results);
		return results.success;
		}

		private void record(String msg, Throwable t) {
		mLog.e(msg + " -> exception: " + t);
		}

		private void record(String msg, CbResults results) {
		final String logmsg = msg + " -> " + results;
		if (!results.success) {
		mLog.e(logmsg);
		} else {
		mLog.log(logmsg);
		}
		}

		private static class TetheringOffloadCallback extends ITetheringOffloadCallback.Stub {
		public final Handler handler;
		public final ControlCallback controlCb;
		@@ -162,5 +183,13 @@ public class OffloadHardwareInterface {
		private static class CbResults {
		boolean success;
		String errMsg;

		public String toString() {
		if (success) {
		return "ok";
		} else {
		return "fail: " + errMsg;
		}
		}
		}
		}