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/**
* @file lleventpoll.cpp
* @brief Implementation of the LLEventPoll class.
*
* Copyright (c) 2006-2007, Linden Research, Inc.
*
* Second Life Viewer Source Code
* The source code in this file ("Source Code") is provided by Linden Lab
* to you under the terms of the GNU General Public License, version 2.0
* ("GPL"), unless you have obtained a separate licensing agreement
* ("Other License"), formally executed by you and Linden Lab. Terms of
* the GPL can be found in doc/GPL-license.txt in this distribution, or
* online at http://secondlife.com/developers/opensource/gplv2
*
* There are special exceptions to the terms and conditions of the GPL as
* it is applied to this Source Code. View the full text of the exception
* in the file doc/FLOSS-exception.txt in this software distribution, or
* online at http://secondlife.com/developers/opensource/flossexception
*
* By copying, modifying or distributing this software, you acknowledge
* that you have read and understood your obligations described above,
* and agree to abide by those obligations.
*
* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
* COMPLETENESS OR PERFORMANCE.
*/
#include "llviewerprecompiledheaders.h"
#include "llagent.h"
#include "lleventpoll.h"
#include "llhttpclient.h"
#include "llsdserialize.h"
#include "llviewerregion.h"
#include "message.h"
namespace
{
class LLEventPollResponder : public LLHTTPClient::Responder
{
public:
static LLHTTPClient::ResponderPtr start(const std::string& pollURL, const LLHost& sender);
void stop();
private:
LLEventPollResponder(const std::string& pollURL, const LLHost& sender);
~LLEventPollResponder();
void makeRequest();
void handleMessage(const LLSD& content);
virtual void error(U32 status, const std::string& reason);
virtual void result(const LLSD& content);
private:
bool mDone;
std::string mPollURL;
std::string mSender;
LLSD mAcknowledge;
// these are only here for debugging so we can see which poller is which
static int sCount;
int mCount;
};
//static
LLHTTPClient::ResponderPtr LLEventPollResponder::start(
const std::string& pollURL, const LLHost& sender)
{
LLHTTPClient::ResponderPtr result = new LLEventPollResponder(pollURL, sender);
llinfos << "LLEventPollResponder::start <" << sCount << "> "
<< pollURL << llendl;
return result;
}
void LLEventPollResponder::stop()
{
llinfos << "LLEventPollResponder::stop <" << mCount << "> "
<< mPollURL << llendl;
// there should be a way to stop a LLHTTPClient request in progress
mDone = true;
}
int LLEventPollResponder::sCount = 0;
LLEventPollResponder::LLEventPollResponder(const std::string& pollURL, const LLHost& sender)
: mDone(false),
mPollURL(pollURL),
mCount(++sCount)
{
//extract host and port of simulator to set as sender
LLViewerRegion *regionp = gAgent.getRegion();
if (!regionp)
{
llerrs << "LLEventPoll initialized before region is added." << llendl;
}
mSender = sender.getIPandPort();
llinfos << "LLEventPoll initialized with sender " << mSender << llendl;
makeRequest();
}
LLEventPollResponder::~LLEventPollResponder()
{
stop();
lldebugs << "LLEventPollResponder::~Impl <" << mCount << "> "
<< mPollURL << llendl;
}
void LLEventPollResponder::makeRequest()
{
LLSD request;
request["ack"] = mAcknowledge;
request["done"] = mDone;
lldebugs << "LLEventPollResponder::makeRequest <" << mCount << "> ack = "
<< LLSDXMLStreamer(mAcknowledge) << llendl;
LLHTTPClient::post(mPollURL, request, this);
}
void LLEventPollResponder::handleMessage(const LLSD& content)
{
std::string msg_name = content["message"];
LLSD message;
message["sender"] = mSender;
message["body"] = content["body"];
LLMessageSystem::dispatch(msg_name, message);
}
//virtual
void LLEventPollResponder::error(U32 status, const std::string& reason)
{
if (mDone) return;
if(status != 499)
{
llwarns << "LLEventPollResponder::error: <" << mCount << "> got "
<< status << ": " << reason
<< (mDone ? " -- done" : "") << llendl;
stop();
return;
}
makeRequest();
}
//virtual
void LLEventPollResponder::result(const LLSD& content)
{
lldebugs << "LLEventPollResponder::result <" << mCount << ">"
<< (mDone ? " -- done" : "") << llendl;
if (mDone) return;
if (!content.get("events") ||
!content.get("id"))
{
llwarns << "received event poll with no events or id key" << llendl;
return;
}
mAcknowledge = content["id"];
LLSD events = content["events"];
if(mAcknowledge.isUndefined())
{
llwarns << "LLEventPollResponder: id undefined" << llendl;
}
llinfos << "LLEventPollResponder::completed <" << mCount << "> " << events.size() << "events (id "
<< LLSDXMLStreamer(mAcknowledge) << ")" << llendl;
LLSD::array_const_iterator i = events.beginArray();
LLSD::array_const_iterator end = events.endArray();
for (; i != end; ++i)
{
if (i->has("message"))
{
handleMessage(*i);
}
}
makeRequest();
}
}
LLEventPoll::LLEventPoll(const std::string& pollURL, const LLHost& sender)
: mImpl(LLEventPollResponder::start(pollURL, sender))
{ }
LLEventPoll::~LLEventPoll()
{
}
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