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/**
* @file lleventpoll.cpp
* @brief Implementation of the LLEventPoll class.
*
* Copyright (c) 2006-$CurrentYear$, Linden Research, Inc.
* $License$
*/
#include "llviewerprecompiledheaders.h"
#include "llagent.h"
#include "lleventpoll.h"
#include "llhttpclient.h"
#include "llsdserialize.h"
#include "llviewerregion.h"
#include "message.h"
class LLEventPoll::Impl : LLHTTPClient::Responder
{
public:
static Impl& start(const std::string& pollURL);
void stop();
private:
Impl(const std::string& pollURL);
~Impl();
void makeRequest();
void handleMessage(const LLSD& content);
virtual void error(U32 status, const std::string& reason);
virtual void result(const LLSD& content);
private:
typedef LLHTTPClient::ResponderPtr Ptr;
Ptr mPtr;
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
LLEventPoll::Impl& LLEventPoll::Impl::start(
const std::string& pollURL)
{
Impl* i = new Impl(pollURL);
llinfos << "LLEventPoll::Impl::start <" << i->mCount << "> "
<< pollURL << llendl;
return *i;
}
void LLEventPoll::Impl::stop()
{
lldebugs << "LLEventPoll::Impl::stop <" << mCount << "> "
<< mPollURL << llendl;
// there should be a way to stop a LLHTTPClient request in progress
mDone = true;
mPtr = NULL;
}
int LLEventPoll::Impl::sCount = 0;
LLEventPoll::Impl::Impl(const std::string& pollURL)
: mPtr(NULL), mDone(false),
mPollURL(pollURL),
mCount(++sCount)
{
mPtr = this;
//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 = regionp->getHost().getIPandPort();
llinfos << "LLEventPoll initialized with sender " << mSender << llendl;
makeRequest();
}
LLEventPoll::Impl::~Impl()
{
lldebugs << "LLEventPoll::Impl::~Impl <" << mCount << "> "
<< mPollURL << llendl;
}
void LLEventPoll::Impl::makeRequest()
{
LLSD request;
request["ack"] = mAcknowledge;
request["done"] = mDone;
lldebugs << "LLEventPoll::Impl::makeRequest <" << mCount << "> ack = "
<< LLSDXMLStreamer(mAcknowledge) << llendl;
LLHTTPClient::post(mPollURL, request, mPtr);
}
void LLEventPoll::Impl::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 LLEventPoll::Impl::error(U32 status, const std::string& reason)
{
if (mDone) return;
if(status != 499)
{
llwarns << "LLEventPoll::Impl::error: <" << mCount << "> got "
<< status << ": " << reason
<< (mDone ? " -- done" : "") << llendl;
stop();
return;
}
makeRequest();
}
//virtual
void LLEventPoll::Impl::result(const LLSD& content)
{
lldebugs << "LLEventPoll::Impl::result <" << mCount << ">"
<< (mDone ? " -- done" : "") << llendl;
if (mDone) return;
mAcknowledge = content["id"];
LLSD events = content["events"];
if(mAcknowledge.isUndefined())
{
llwarns << "LLEventPoll::Impl: id undefined" << llendl;
}
llinfos << "LLEventPoll::Impl::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)
: impl(Impl::start(pollURL))
{ }
LLEventPoll::~LLEventPoll()
{
impl.stop();
}
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