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Throttle for IBB

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git-svn-id: http://svn.igniterealtime.org/svn/repos/smack/trunk@3416 b35dd754-fafc-0310-a699-88a17e54d16e
This commit is contained in:
Alex Wenckus 2006-02-09 01:39:04 +00:00 committed by alex
parent d323d6db9c
commit d1ed521726
1 changed files with 24 additions and 9 deletions
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33
source/org/jivesoftware/smackx/filetransfer/IBBTransferNegotiator.java
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@ -27,6 +27,7 @@ import org.jivesoftware.smack.filter.*;
import org.jivesoftware.smack.packet.IQ;
import org.jivesoftware.smack.packet.Message;
import org.jivesoftware.smack.packet.Packet;
import org.jivesoftware.smack.packet.XMPPError;
import org.jivesoftware.smackx.packet.IBBExtensions;
import org.jivesoftware.smackx.packet.IBBExtensions.Open;
import org.jivesoftware.smackx.packet.StreamInitiation;
@ -206,7 +207,7 @@ public class IBBTransferNegotiator extends StreamNegotiator {
count = 0;
}
private void writeToXML(byte[] buffer, int offset, int len) {
private synchronized void writeToXML(byte[] buffer, int offset, int len) {
Message template = createTemplate(messageID + "_" + seq);
IBBExtensions.Data ext = new IBBExtensions.Data(sid);
template.addExtension(ext);
@ -215,6 +216,13 @@ public class IBBTransferNegotiator extends StreamNegotiator {
ext.setData(enc);
ext.setSeq(seq);
synchronized(this) {
try {
this.wait(100);
}
catch (InterruptedException e) {
}
}
connection.sendPacket(template);
@ -260,6 +268,8 @@ public class IBBTransferNegotiator extends StreamNegotiator {
private IQ closeConfirmation;
private Message lastMess;
private IBBInputStream(String streamID, PacketFilter dataFilter,
PacketFilter closeFilter) {
this.streamID = streamID;
@ -319,22 +329,23 @@ public class IBBTransferNegotiator extends StreamNegotiator {
mess = (Message) dataCollector.nextResult(1000);
}
}
lastMess = mess;
data = (IBBExtensions.Data) mess.getExtension(
IBBExtensions.Data.ELEMENT_NAME,
IBBExtensions.NAMESPACE);
checkSequence((int) data.getSeq());
checkSequence(mess, (int) data.getSeq());
buffer = Base64.decode(data.getData());
bufferPointer = 0;
return true;
}
private void checkSequence(int seq) throws IOException {
private void checkSequence(Message mess, int seq) throws IOException {
if (this.seq == 65535) {
this.seq = -1;
}
if (seq - 1 != this.seq) {
cancelTransfer();
cancelTransfer(mess);
throw new IOException("Packets out of sequence");
}
else {
@ -342,10 +353,10 @@ public class IBBTransferNegotiator extends StreamNegotiator {
}
}
private void cancelTransfer() {
private void cancelTransfer(Message mess) {
cleanup();
sendCancelMessage();
sendCancelMessage(mess);
}
private void cleanup() {
@ -353,7 +364,11 @@ public class IBBTransferNegotiator extends StreamNegotiator {
connection.removePacketListener(this);
}
private void sendCancelMessage() {
private void sendCancelMessage(Message message) {
IQ error = FileTransferNegotiator.createIQ(message.getPacketID(), message.getFrom(), message.getTo(),
IQ.Type.ERROR);
error.setError(new XMPPError(504));
connection.sendPacket(error);
}
public boolean markSupported() {
@ -379,8 +394,8 @@ public class IBBTransferNegotiator extends StreamNegotiator {
if (isEOF) {
sendCloseConfirmation();
}
else {
sendCancelMessage();
else if(lastMess != null) {
sendCancelMessage(lastMess);
}
isClosed = true;
}