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