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DO NOT MERGE: Support timeouts for requestNetwork() invocations.

Browse Source 
(cherry-pick of 0b7a74842b)
(cherry picked from commit 155a59aa63)

Bug: 21414325
Change-Id: I1a58823a372154589f972b98c4c428eab0e0523e
This commit is contained in:
Erik Kline
2015-11-25 12:49:38 +09:00
committed by Lorenzo Colitti
parent fb3178adfc
commit 5791c5f681
3 changed files with 127 additions and 8 deletions
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27
core/java/android/net/ConnectivityManager.java
View File

@@ -2592,7 +2592,8 @@ public class ConnectivityManager {
/**
* Called if no network is found in the given timeout time. If no timeout is given,
* this will not be called.
* this will not be called. The associated {@link NetworkRequest} will have already
* been removed and released, as if {@link #unregisterNetworkCallback} had been called.
* @hide
*/
public void onUnavailable() {}
@@ -2665,6 +2666,26 @@ public class ConnectivityManager {
/** @hide */
public static final int CALLBACK_RESUMED = BASE + 12;
/** @hide */
public static String getCallbackName(int whichCallback) {
switch (whichCallback) {
case CALLBACK_PRECHECK: return "CALLBACK_PRECHECK";
case CALLBACK_AVAILABLE: return "CALLBACK_AVAILABLE";
case CALLBACK_LOSING: return "CALLBACK_LOSING";
case CALLBACK_LOST: return "CALLBACK_LOST";
case CALLBACK_UNAVAIL: return "CALLBACK_UNAVAIL";
case CALLBACK_CAP_CHANGED: return "CALLBACK_CAP_CHANGED";
case CALLBACK_IP_CHANGED: return "CALLBACK_IP_CHANGED";
case CALLBACK_RELEASED: return "CALLBACK_RELEASED";
case CALLBACK_EXIT: return "CALLBACK_EXIT";
case EXPIRE_LEGACY_REQUEST: return "EXPIRE_LEGACY_REQUEST";
case CALLBACK_SUSPENDED: return "CALLBACK_SUSPENDED";
case CALLBACK_RESUMED: return "CALLBACK_RESUMED";
default:
return Integer.toString(whichCallback);
}
}
private class CallbackHandler extends Handler {
private final HashMap<NetworkRequest, NetworkCallback>mCallbackMap;
private final AtomicInteger mRefCount;
@@ -2831,7 +2852,7 @@ public class ConnectivityManager {
private final static int REQUEST = 2;
private NetworkRequest sendRequestForNetwork(NetworkCapabilities need,
NetworkCallback networkCallback, int timeoutSec, int action,
NetworkCallback networkCallback, int timeoutMs, int action,
int legacyType) {
if (networkCallback == null) {
throw new IllegalArgumentException("null NetworkCallback");
@@ -2847,7 +2868,7 @@ public class ConnectivityManager {
new Messenger(sCallbackHandler), new Binder());
} else {
networkCallback.networkRequest = mService.requestNetwork(need,
new Messenger(sCallbackHandler), timeoutSec, new Binder(), legacyType);
new Messenger(sCallbackHandler), timeoutMs, new Binder(), legacyType);
}
if (networkCallback.networkRequest != null) {
sNetworkCallback.put(networkCallback.networkRequest, networkCallback);

27
services/core/java/com/android/server/ConnectivityService.java
View File

@@ -2600,14 +2600,28 @@ public class ConnectivityService extends IConnectivityManager.Stub
"request NetworkCapabilities", ConnectivityManager.CALLBACK_CAP_CHANGED);
}
private void handleTimedOutNetworkRequest(final NetworkRequestInfo nri) {
if (mNetworkRequests.get(nri.request) != null && mNetworkForRequestId.get(
nri.request.requestId) == null) {
handleRemoveNetworkRequest(nri, ConnectivityManager.CALLBACK_UNAVAIL);
}
}
private void handleReleaseNetworkRequest(NetworkRequest request, int callingUid) {
final NetworkRequestInfo nri = getNriForAppRequest(
request, callingUid, "release NetworkRequest");
if (nri == null) return;
if (nri != null) {
handleRemoveNetworkRequest(nri, ConnectivityManager.CALLBACK_RELEASED);
}
}
if (VDBG || (DBG && nri.request.isRequest())) log("releasing " + request);
private void handleRemoveNetworkRequest(final NetworkRequestInfo nri, final int whichCallback) {
final String logCallbackType = ConnectivityManager.getCallbackName(whichCallback);
if (VDBG || (DBG && nri.request.isRequest())) {
log("releasing " + nri.request + " (" + logCallbackType + ")");
}
nri.unlinkDeathRecipient();
mNetworkRequests.remove(request);
mNetworkRequests.remove(nri.request);
synchronized (mUidToNetworkRequestCount) {
int requests = mUidToNetworkRequestCount.get(nri.mUid, 0);
if (requests < 1) {
@@ -2701,7 +2715,7 @@ public class ConnectivityService extends IConnectivityManager.Stub
}
}
}
callCallbackForRequest(nri, null, ConnectivityManager.CALLBACK_RELEASED, 0);
callCallbackForRequest(nri, null, whichCallback, 0);
}
@Override
@@ -2938,6 +2952,11 @@ public class ConnectivityService extends IConnectivityManager.Stub
handleRegisterNetworkRequestWithIntent(msg);
break;
}
case EVENT_TIMEOUT_NETWORK_REQUEST: {
NetworkRequestInfo nri = (NetworkRequestInfo) msg.obj;
handleTimedOutNetworkRequest(nri);
break;
}
case EVENT_RELEASE_NETWORK_REQUEST_WITH_INTENT: {
handleReleaseNetworkRequestWithIntent((PendingIntent) msg.obj, msg.arg1);
break;

81
services/tests/servicestests/src/com/android/server/ConnectivityServiceTest.java
View File

@@ -1077,7 +1077,8 @@ public class ConnectivityServiceTest extends AndroidTestCase {
NETWORK_CAPABILITIES,
LINK_PROPERTIES,
LOSING,
LOST
LOST,
UNAVAILABLE
}
/**
@@ -1117,6 +1118,11 @@ public class ConnectivityServiceTest extends AndroidTestCase {
setLastCallback(CallbackState.AVAILABLE, network, null);
}
@Override
public void onUnavailable() {
setLastCallback(CallbackState.UNAVAILABLE, null, null);
}
@Override
public void onLosing(Network network, int maxMsToLive) {
setLastCallback(CallbackState.LOSING, network, maxMsToLive /* autoboxed int */);
@@ -2221,6 +2227,79 @@ public class ConnectivityServiceTest extends AndroidTestCase {
mCm.unregisterNetworkCallback(defaultCallback);
}
/**
* Validate that a satisfied network request does not trigger onUnavailable() once the
* time-out period expires.
*/
@SmallTest
public void testSatisfiedNetworkRequestDoesNotTriggerOnUnavailable() {
NetworkRequest nr = new NetworkRequest.Builder().addTransportType(
NetworkCapabilities.TRANSPORT_WIFI).build();
final TestNetworkCallback networkCallback = new TestNetworkCallback();
mCm.requestNetwork(nr, networkCallback, 10);
mWiFiNetworkAgent = new MockNetworkAgent(TRANSPORT_WIFI);
mWiFiNetworkAgent.connect(false);
networkCallback.expectCallback(CallbackState.AVAILABLE, mWiFiNetworkAgent);
// pass timeout and validate that UNAVAILABLE is not called
try {
Thread.sleep(15);
} catch (InterruptedException e) {
}
networkCallback.assertNoCallback();
}
/**
* Validate that when a time-out is specified for a network request the onUnavailable()
* callback is called when time-out expires. Then validate that if network request is
* (somehow) satisfied - the callback isn't called later.
*/
@SmallTest
public void testTimedoutNetworkRequest() {
NetworkRequest nr = new NetworkRequest.Builder().addTransportType(
NetworkCapabilities.TRANSPORT_WIFI).build();
final TestNetworkCallback networkCallback = new TestNetworkCallback();
mCm.requestNetwork(nr, networkCallback, 10);
// pass timeout and validate that UNAVAILABLE is called
networkCallback.expectCallback(CallbackState.UNAVAILABLE, null);
// create a network satisfying request - validate that request not triggered
mWiFiNetworkAgent = new MockNetworkAgent(TRANSPORT_WIFI);
mWiFiNetworkAgent.connect(false);
networkCallback.assertNoCallback();
}
/**
* Validate that when a network request is unregistered (cancelled) the time-out for that
* request doesn't trigger the onUnavailable() callback.
*/
@SmallTest
public void testTimedoutAfterUnregisteredNetworkRequest() {
NetworkRequest nr = new NetworkRequest.Builder().addTransportType(
NetworkCapabilities.TRANSPORT_WIFI).build();
final TestNetworkCallback networkCallback = new TestNetworkCallback();
mCm.requestNetwork(nr, networkCallback, 10);
// remove request
mCm.unregisterNetworkCallback(networkCallback);
// pass timeout and validate that no callbacks
// Note: doesn't validate that nothing called from CS since even if called the CM already
// unregisters the callback and won't pass it through!
try {
Thread.sleep(15);
} catch (InterruptedException e) {
}
networkCallback.assertNoCallback();
// create a network satisfying request - validate that request not triggered
mWiFiNetworkAgent = new MockNetworkAgent(TRANSPORT_WIFI);
mWiFiNetworkAgent.connect(false);
networkCallback.assertNoCallback();
}
private static class TestKeepaliveCallback extends PacketKeepaliveCallback {
public static enum CallbackType { ON_STARTED, ON_STOPPED, ON_ERROR };