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/*
* libjingle
* Copyright 2004--2005, Google Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _CRICKET_PHONE_SESSIONSENDTASK_H_
#define _CRICKET_PHONE_SESSIONSENDTASK_H_
#include "talk/xmpp/xmppengine.h"
#include "talk/xmpp/xmpptask.h"
#include "talk/p2p/client/sessionclient.h"
namespace cricket {
// The job of this task is to send an IQ stanza out (after stamping it with
// an ID attribute) and then wait for a response. If not response happens
// within 5 seconds, it will signal failure on a SessionClient. If an error
// happens it will also signal failure. If, however, the send succeeds this
// task will quietly go away.
// It is safe for this to hold on to the session client. In the case where
// the xmpp client goes away, this task will automatically be aborted. The
// session_client is guaranteed to outlive the xmpp session.
class SessionSendTask : public buzz::XmppTask {
public:
SessionSendTask(Task *parent, SessionClient *session_client)
: buzz::XmppTask(parent, buzz::XmppEngine::HL_SINGLE),
session_client_(session_client),
timed_out_(false) {
}
void Send(const buzz::XmlElement* stanza) {
assert(stanza_.get() == NULL);
stanza_.reset(new buzz::XmlElement(*stanza));
stanza_->SetAttr(buzz::QN_ID, task_id());
}
protected:
// This gets called by the task runner every 500 msec
virtual void Poll() {
if (ElapsedTime() > (15 * 1000 * 10000)) { // 15 secs
timed_out_ = true;
Wake();
}
}
virtual int ProcessStart() {
SendStanza(stanza_.get());
return STATE_RESPONSE;
}
virtual int ProcessResponse() {
if (timed_out_) {
session_client_->OnFailedSend(stanza_.get(), NULL);
return STATE_DONE;
}
const buzz::XmlElement* next = NextStanza();
if (next == NULL)
return STATE_BLOCKED;
if (next->Attr(buzz::QN_TYPE) == "result") {
return STATE_DONE;
} else {
session_client_->OnFailedSend(stanza_.get(), next);
return STATE_DONE;
}
}
virtual bool HandleStanza(const buzz::XmlElement *stanza) {
if (!MatchResponseIq(stanza, buzz::Jid(stanza_->Attr(buzz::QN_TO)), task_id()))
return false;
if (stanza->Attr(buzz::QN_TYPE) == "result" ||
stanza->Attr(buzz::QN_TYPE) == "error") {
QueueStanza(stanza);
return true;
}
return false;
}
private:
SessionClient *session_client_;
buzz::scoped_ptr<buzz::XmlElement> stanza_;
bool timed_out_;
};
}
#endif // _CRICKET_PHONE_SESSIONSENDTASK_H_
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