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// **********************************************************************
//
// Copyright (c) 2003
// ZeroC, Inc.
// Billerica, MA, USA
//
// All Rights Reserved.
//
// Ice is free software; you can redistribute it and/or modify it under
// the terms of the GNU General Public License version 2 as published by
// the Free Software Foundation.
//
// **********************************************************************
#include <Ice/Ice.h>
#include <IceStorm/IceStorm.h>
#include <Single.h>
#include <fcntl.h>
#ifdef _WIN32
# include <io.h>
#else
# include <sys/types.h>
# include <sys/stat.h>
#endif
using namespace std;
using namespace Ice;
using namespace IceStorm;
class SingleI : public Single, public IceUtil::Mutex
{
public:
SingleI(const CommunicatorPtr& communicator) :
_communicator(communicator),
_count(0)
{
}
virtual void event(const Current&)
{
IceUtil::Mutex::Lock sync(*this);
if(++_count == 10)
{
_communicator->shutdown();
}
}
private:
CommunicatorPtr _communicator;
int _count;
};
void
createLock(const string& name)
{
int fd = open(name.c_str(), O_CREAT | O_WRONLY | O_EXCL, 0777);
assert(fd != -1);
close(fd);
}
void
deleteLock(const string& name)
{
#ifdef _WIN32
int ret = _unlink(name.c_str());
#else
int ret = unlink(name.c_str());
#endif
assert(ret != -1);
}
int
run(int argc, char* argv[], const CommunicatorPtr& communicator)
{
string lockfile = "subscriber.lock";
if(argc != 1)
{
lockfile = argv[1];
}
createLock(lockfile);
PropertiesPtr properties = communicator->getProperties();
const char* managerProxyProperty = "IceStorm.TopicManager.Proxy";
string managerProxy = properties->getProperty(managerProxyProperty);
if(managerProxy.empty())
{
cerr << argv[0] << ": property `" << managerProxyProperty << "' is not set" << endl;
return EXIT_FAILURE;
}
ObjectPrx base = communicator->stringToProxy(managerProxy);
IceStorm::TopicManagerPrx manager = IceStorm::TopicManagerPrx::checkedCast(base);
if(!manager)
{
cerr << argv[0] << ": `" << managerProxy << "' is not running" << endl;
return EXIT_FAILURE;
}
ObjectAdapterPtr adapter = communicator->createObjectAdapterWithEndpoints("SingleAdapter", "default");
ObjectPtr single = new SingleI(communicator);
ObjectPrx object = adapter->addWithUUID(single);
IceStorm::QoS qos;
//TODO: qos["reliability"] = "batch";
try
{
TopicPrx topic = manager->retrieve("single");
topic->subscribe(qos, object);
}
catch(const IceStorm::NoSuchTopic& e)
{
cerr << argv[0] << ": NoSuchTopic: " << e.name << endl;
return EXIT_FAILURE;
}
adapter->activate();
communicator->waitForShutdown();
deleteLock(lockfile);
return EXIT_SUCCESS;
}
int
main(int argc, char* argv[])
{
int status;
CommunicatorPtr communicator;
try
{
communicator = initialize(argc, argv);
status = run(argc, argv, communicator);
}
catch(const Exception& ex)
{
cerr << ex << endl;
status = EXIT_FAILURE;
}
if(communicator)
{
try
{
communicator->destroy();
}
catch(const Exception& ex)
{
cerr << ex << endl;
status = EXIT_FAILURE;
}
}
return status;
}
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