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Resolve confusion between ns and ms, which should not have actually changed much except the fuzz time around idle returns (which seem to never happen in production anymore). 

Increased number of messages returned at one time to 20.
Increased wait time for more messages before returning to 50ms.
This commit is contained in:
Andy Janata 2013-08-07 07:58:28 +01:00
parent 2187eaa320
commit fe0b3552b3
2 changed files with 9 additions and 7 deletions
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3
src/net/socialgamer/cah/data/ConnectedUsers.java
View File

@ -30,6 +30,7 @@ import java.util.HashSet;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.TimeUnit;
import javax.annotation.Nullable;
@ -58,7 +59,7 @@ public class ConnectedUsers {
/**
* Duration of a ping timeout, in nanoseconds.
*/
public static final long PING_TIMEOUT = 45L * 1000L * 1000000L;
public static final long PING_TIMEOUT = TimeUnit.SECONDS.toNanos(45);
/**
* Key (username) must be stored in lower-case to facilitate case-insensitivity in nicks.

13
src/net/socialgamer/cah/servlets/LongPollServlet.java
View File

@ -30,6 +30,7 @@ import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.TimeUnit;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
@ -60,28 +61,28 @@ public class LongPollServlet extends CahServlet {
/**
* Minimum amount of time before timing out and returning a no-op, in nanoseconds.
*/
private static final long TIMEOUT_BASE = 20 * 1000 * 1000;
private static final long TIMEOUT_BASE = TimeUnit.SECONDS.toNanos(20);
// private static final long TIMEOUT_BASE = 10 * 1000 * 1000;
/**
* Randomness factor added to minimum timeout duration, in nanoseconds. The maximum timeout delay
* will be TIMEOUT_BASE + TIMEOUT_RANDOMNESS - 1.
*/
private static final double TIMEOUT_RANDOMNESS = 5 * 1000 * 1000;
private static final double TIMEOUT_RANDOMNESS = TimeUnit.SECONDS.toNanos(5);
// private static final double TIMEOUT_RANDOMNESS = 0;
/**
* The maximum number of messages which will be returned to a client during a single poll
* operation.
*/
private static final int MAX_MESSAGES_PER_POLL = 10;
private static final int MAX_MESSAGES_PER_POLL = 20;
/**
* An amount of milliseconds to wait after being notified that the user has at least one message
* to deliver, before we actually deliver messages. This will allow multiple messages that arrive
* in close proximity to each other to actually be delivered in the same client request.
*/
private static final int WAIT_FOR_MORE_DELAY = 30;
private static final int WAIT_FOR_MORE_DELAY = 50;
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
@ -99,9 +100,9 @@ public class LongPollServlet extends CahServlet {
final User user = (User) hSession.getAttribute(SessionAttribute.USER);
assert (user != null);
user.contactedServer();
while (!(user.hasQueuedMessages()) && System.nanoTime() < end) {
while (!(user.hasQueuedMessages()) && System.nanoTime() - end < 0) {
try {
user.waitForNewMessageNotification((end - System.nanoTime()) / 1000);
user.waitForNewMessageNotification(TimeUnit.NANOSECONDS.toMillis(end - System.nanoTime()));
} catch (final InterruptedException ie) {
// pass
}