AfflictionNetworks/narya
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Handle the client connecting and disconnecting before client object resolution

Browse Source 
completed, or connecting, disconnecting and reconnceting before client object
resolution completes a little more gracefully.


git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@4889 542714f4-19e9-0310-aa3c-eee0fc999fb1
This commit is contained in:
Michael Bayne
2007-12-03 18:28:07 +00:00
parent 362e506fd6
commit c935c46612
2 changed files with 45 additions and 44 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/java/com/threerings/crowd/server/CrowdClient.java
+3 -9
View File
@@ -24,7 +24,6 @@ package com.threerings.crowd.server;
import com.threerings.presents.dobj.AccessController;
import com.threerings.presents.server.PresentsClient;
import com.threerings.crowd.Log;
import com.threerings.crowd.chat.server.SpeakUtil;
import com.threerings.crowd.data.BodyObject;
import com.threerings.crowd.data.OccupantInfo;
@@ -52,14 +51,9 @@ public class CrowdClient extends PresentsClient
{
super.sessionWillResume();
if (_clobj != null) {
// note that the user's active once more
BodyObject bobj = (BodyObject)_clobj;
BodyProvider.updateOccupantStatus(bobj, bobj.location, OccupantInfo.ACTIVE);
} else {
Log.warning("Session resumed but we have no client object!? [client=" + this + "].");
}
// note that the user's active once more
BodyObject bobj = (BodyObject)_clobj;
BodyProvider.updateOccupantStatus(bobj, bobj.location, OccupantInfo.ACTIVE);
}
// documentation inherited
src/java/com/threerings/presents/server/PresentsClient.java
+42 -35
View File
@@ -26,6 +26,7 @@ import java.net.InetAddress;
import java.util.HashMap;
import java.util.Iterator;
import java.util.TimeZone;
import java.util.logging.Level;
import com.samskivert.util.HashIntMap;
import com.samskivert.util.ResultListener;
@@ -33,7 +34,6 @@ import com.samskivert.util.Throttle;
import com.threerings.util.Name;
import com.threerings.util.StreamableArrayList;
import com.threerings.presents.Log;
import com.threerings.presents.data.ClientObject;
import com.threerings.presents.data.InvocationMarshaller;
@@ -64,6 +64,8 @@ import com.threerings.presents.net.UnsubscribeResponse;
import com.threerings.presents.server.net.Connection;
import com.threerings.presents.server.net.MessageHandler;
import static com.threerings.presents.Log.log;
/**
* Represents a client session in the server. It is associated with a connection instance (while
* the client is connected) and acts as the intermediary for the remote client in terms of passing
@@ -193,7 +195,7 @@ public class PresentsClient
// if they old client object is gone by now, they ended their session while we were
// switching, so freak out
if (_clobj == null) {
Log.warning("Client disappeared before we could complete the switch to a " +
log.warning("Client disappeared before we could complete the switch to a " +
"new client object [ousername=" + _username +
", nusername=" + username + "].");
_cmgr.releaseClientObject(username);
@@ -246,9 +248,8 @@ public class PresentsClient
}
public void resolutionFailed (Name username, Exception reason) {
Log.warning("Unable to resolve new client object [oldname=" + _username +
", newname=" + username + ", reason=" + reason + "].");
Log.logStackTrace(reason);
log.log(Level.WARNING, "Unable to resolve new client object [oldname=" + _username +
", newname=" + username + ", reason=" + reason + "].", reason);
// let our listener know we're hosed
if (ucl != null) {
@@ -290,8 +291,7 @@ public class PresentsClient
try {
sessionDidEnd();
} catch (Exception e) {
Log.warning("Choked in sessionDidEnd [client=" + this + "].");
Log.logStackTrace(e);
log.log(Level.WARNING, "Choked in sessionDidEnd " + this + ".", e);
}
// release (and destroy) our client object
@@ -324,6 +324,13 @@ public class PresentsClient
// from interface ClientResolutionListener
public void clientResolved (Name username, ClientObject clobj)
{
// if our connection was closed while we were resolving our client object, then just
// abandon ship
if (getConnection() == null) {
log.info("Session ended before client object could be resolved: " + this + ".");
return;
}
// we'll be keeping this bad boy
_clobj = clobj;
@@ -339,8 +346,7 @@ public class PresentsClient
public void resolutionFailed (Name username, Exception reason)
{
// urk; nothing to do but complain and get the f**k out of dodge
Log.warning("Unable to resolve client [username=" + username + "].");
Log.logStackTrace(reason);
log.log(Level.WARNING, "Unable to resolve client [username=" + username + "].", reason);
// end the session now to prevent danglage
endSession();
@@ -355,7 +361,7 @@ public class PresentsClient
// first time through we end our session, subsequently _throttle is null and we just drop
// any messages that come in until we've fully shutdown
if (_throttle == null) {
// Log.info("Dropping message from force-quit client [conn=" + _conn +
// log.info("Dropping message from force-quit client [conn=" + _conn +
// ", msg=" + message + "].");
return;
@@ -367,7 +373,7 @@ public class PresentsClient
// message that we received
MessageDispatcher disp = _disps.get(message.getClass());
if (disp == null) {
Log.warning("No dispatcher for message [msg=" + message + "].");
log.warning("No dispatcher for message [msg=" + message + "].");
return;
}
@@ -435,7 +441,7 @@ public class PresentsClient
// check to see if we've already got a connection object, in which case it's probably stale
Connection oldconn = getConnection();
if (oldconn != null && !oldconn.isClosed()) {
Log.info("Closing stale connection [old=" + oldconn + ", new=" + conn + "].");
log.info("Closing stale connection [old=" + oldconn + ", new=" + conn + "].");
// close the old connection (which results in everything being properly unregistered)
oldconn.close();
}
@@ -452,8 +458,8 @@ public class PresentsClient
// and let the original session establishment code take care of initializing this resumed
// session
if (_clobj == null) {
Log.warning("Rapid-fire reconnect caused us to arrive in resumeSession() before the " +
"original session resolved its client object? " + this + ".");
log.info("Rapid-fire reconnect caused us to arrive in resumeSession() before the " +
"original session resolved its client object: " + this + ".");
return;
}
@@ -472,13 +478,20 @@ public class PresentsClient
*/
protected void finishResumeSession ()
{
// if we have no client object for whatever reason; we're hosed, shut ourselves down
if (_clobj == null) {
log.info("Missing client object for resuming session. Killing session.");
endSession();
return;
}
// let derived classes do any session resuming
sessionWillResume();
// send off a bootstrap notification immediately as we've already got our client object
sendBootstrap();
Log.info("Session resumed " + this + ".");
log.info("Session resumed " + this + ".");
}
/**
@@ -488,13 +501,7 @@ public class PresentsClient
{
PresentsServer.omgr.postRunnable(new Runnable() {
public void run () {
if (getClientObject() == null) {
// refuse to end the session unless the client is fully resolved
Log.warning("Refusing logoff from still-resolving client " + this + ".");
} else {
// end the session in a civilized manner
endSession();
}
endSession();
}
});
}
@@ -513,7 +520,7 @@ public class PresentsClient
*/
protected void handleThrottleExceeded ()
{
Log.warning("Client sent more than 100 messages in 10 seconds, disconnecting " + this + ".");
log.warning("Client sent more than 100 messages in 10 seconds, disconnecting " + this + ".");
safeEndSession();
_throttle = null;
}
@@ -531,7 +538,7 @@ public class PresentsClient
if (rec != null) {
rec.unsubscribe();
} else {
Log.warning("Requested to unmap non-existent subscription [oid=" + oid + "].");
log.warning("Requested to unmap non-existent subscription [oid=" + oid + "].");
}
}
@@ -543,7 +550,7 @@ public class PresentsClient
{
for (ClientProxy rec : _subscrips.values()) {
if (verbose) {
Log.info("Clearing subscription [client=" + this +
log.info("Clearing subscription [client=" + this +
", obj=" + rec.object.getOid() + "].");
}
rec.unsubscribe();
@@ -615,7 +622,7 @@ public class PresentsClient
*/
protected void sendBootstrap ()
{
// Log.info("Sending bootstrap " + this + ".");
// log.info("Sending bootstrap " + this + ".");
// create and populate our bootstrap data
BootstrapData data = createBootstrapData();
@@ -649,7 +656,7 @@ public class PresentsClient
// fill in the list of bootstrap services
if (_areq.getBootGroups() == null) {
Log.warning("Client provided no invocation service boot groups? " + this);
log.warning("Client provided no invocation service boot groups? " + this);
data.services = new StreamableArrayList<InvocationMarshaller>();
} else {
data.services = PresentsServer.invmgr.getBootstrapServices(_areq.getBootGroups());
@@ -766,13 +773,13 @@ public class PresentsClient
// don't log dropped messages unless we're dropping a lot of them (meaning something is
// still queueing messages up for this dead client even though it shouldn't be)
if (++_messagesDropped % 50 == 0) {
Log.warning("Dropping many messages? [client=" + this +
log.warning("Dropping many messages? [client=" + this +
", count=" + _messagesDropped + "].");
}
// make darned sure we don't have any remaining subscriptions
if (_subscrips.size() > 0) {
// Log.warning("Clearing stale subscriptions [client=" + this +
// log.warning("Clearing stale subscriptions [client=" + this +
// ", subscrips=" + _subscrips.size() + "].");
clearSubscrips(_messagesDropped > 10);
}
@@ -848,7 +855,7 @@ public class PresentsClient
public void eventReceived (DEvent event)
{
if (event instanceof PresentsDObjectMgr.AccessObjectEvent) {
Log.warning("Ignoring event that shouldn't be forwarded " + event + ".");
log.warning("Ignoring event that shouldn't be forwarded " + event + ".");
Thread.dumpStack();
return;
}
@@ -888,7 +895,7 @@ public class PresentsClient
public void dispatch (PresentsClient client, UpstreamMessage msg)
{
SubscribeRequest req = (SubscribeRequest)msg;
// Log.info("Subscribing [client=" + client + ", oid=" + req.getOid() + "].");
// log.info("Subscribing [client=" + client + ", oid=" + req.getOid() + "].");
// forward the subscribe request to the omgr for processing
PresentsServer.omgr.subscribeToObject(req.getOid(), client.createProxySubscriber());
@@ -904,7 +911,7 @@ public class PresentsClient
{
UnsubscribeRequest req = (UnsubscribeRequest)msg;
int oid = req.getOid();
// Log.info("Unsubscribing " + client + " [oid=" + oid + "].");
// log.info("Unsubscribing " + client + " [oid=" + oid + "].");
// unsubscribe from the object and clear out our proxy
client.unmapSubscrip(oid);
@@ -928,14 +935,14 @@ public class PresentsClient
// freak not out if a message arrives from a client just after their session ended
ClientObject clobj = client.getClientObject();
if (clobj == null) {
Log.info("Dropping event that arrived after client disconnected " + fevt + ".");
log.info("Dropping event that arrived after client disconnected " + fevt + ".");
return;
}
// fill in the proper source oid
fevt.setSourceOid(clobj.getOid());
// Log.info("Forwarding event [client=" + client + ", event=" + fevt + "].");
// log.info("Forwarding event [client=" + client + ", event=" + fevt + "].");
// forward the event to the omgr for processing
PresentsServer.omgr.postEvent(fevt);
@@ -962,7 +969,7 @@ public class PresentsClient
{
public void dispatch (final PresentsClient client, UpstreamMessage msg)
{
Log.debug("Client requested logoff " + client + ".");
log.fine("Client requested logoff " + client + ".");
client.safeEndSession();
}
}