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/*
* Request.h
*
* Copyright (C) 2008 Matthias Schiffer <matthias@gamezock.de>
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef MAD_COMMON_XMLREQUEST_H_
#define MAD_COMMON_XMLREQUEST_H_
#include "RequestHandler.h"
#include <Net/Exception.h>
#include <memory>
#include <boost/bind.hpp>
#include <boost/thread/condition_variable.hpp>
#include <boost/thread/locks.hpp>
#include <boost/thread/mutex.hpp>
namespace Mad {
namespace Common {
class Request : public RequestHandler {
private:
friend class RequestManager;
Net::Signals::Signal1<Request&> finished;
std::auto_ptr<XmlPacket> res;
Net::Exception exp;
boost::mutex mutex;
boost::condition_variable finishCond;
bool isFinished;
static void doNothing(Request&) {}
public:
typedef Net::Signals::Signal1<Request&>::slot_type slot_type;
protected:
static slot_type empty_slot;
Request(Connection *connection, uint16_t requestId, slot_type slot)
: RequestHandler(connection, requestId), exp(Net::Exception::NOT_FINISHED), isFinished(false) {
finished.connect(slot);
finished.connect(boost::bind(&Request::signalFinished, this));
}
virtual ~Request() {
wait();
}
void finish(std::auto_ptr<XmlPacket> result) {
{
boost::lock_guard<boost::mutex> lock(mutex);
res = result;
isFinished = true;
}
finishCond.notify_all();
finished.emit(*this);
}
void finish(const XmlPacket& result) {
{
boost::lock_guard<boost::mutex> lock(mutex);
res.reset(new XmlPacket(result));
isFinished = true;
}
finishCond.notify_all();
finished.emit(*this);
}
void finishWithError(const Net::Exception &e) {
{
boost::lock_guard<boost::mutex> lock(mutex);
exp = e;
isFinished = true;
}
finishCond.notify_all();
finished.emit(*this);
}
virtual void sendRequest() = 0;
virtual void handlePacket(const XmlPacket &packet);
public:
const XmlPacket& getResult() throw(Net::Exception) {
boost::lock_guard<boost::mutex> lock(mutex);
if(res.get())
return *res;
throw exp;
}
void wait() {
boost::unique_lock<boost::mutex> lock(mutex);
while(!isFinished)
finishCond.wait(lock);
}
};
}
}
#endif /* MAD_COMMON_XMLREQUEST_H_ */
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