blob: 8ff7dc764f28b72cfe00d3091c6d6f916f8994a4 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
|
/*
* Copyright (c) 2011 Isode Limited, London, England.
* All rights reserved.
*/
/*
* Copyright (c) 2010 Remko Tronçon.
* All rights reserved.
*/
package com.isode.stroke.streammanagement;
import com.isode.stroke.elements.Message;
import com.isode.stroke.elements.Stanza;
import com.isode.stroke.signals.Signal;
import com.isode.stroke.signals.Signal1;
import java.util.ArrayList;
import java.util.List;
public class StanzaAckRequester {
static final long MAX_HANDLED_STANZA_COUNT = Long.parseLong("4294967295"); //boost::numeric_cast<unsigned int>((1ULL<<32) - 1);
public StanzaAckRequester() {
this.lastHandledStanzasCount = 0L;
}
public void handleStanzaSent(Stanza stanza) {
unackedStanzas.add(stanza);
if (stanza instanceof Message) {
onRequestAck.emit();
}
}
public void handleAckReceived(long handledStanzasCount) {
long i = lastHandledStanzasCount;
while (i != handledStanzasCount) {
if (unackedStanzas.isEmpty()) {
System.err.println("Warning: Server acked more stanzas than we sent");
break;
}
Stanza ackedStanza = unackedStanzas.get(0);
unackedStanzas.remove(0);
onStanzaAcked.emit(ackedStanza);
i = (i == MAX_HANDLED_STANZA_COUNT ? 0 : i + 1);
}
lastHandledStanzasCount = handledStanzasCount;
}
public Signal onRequestAck = new Signal();
public Signal1<Stanza> onStanzaAcked = new Signal1<Stanza>();
long lastHandledStanzasCount;
List<Stanza> unackedStanzas = new ArrayList<Stanza>();
}
|