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// **********************************************************************
//
// Copyright (c) 2003-2012 ZeroC, Inc. All rights reserved.
//
// This copy of Ice is licensed to you under the terms described in the
// ICE_LICENSE file included in this distribution.
//
// **********************************************************************
#include <IceUtil/IceUtil.h>
#include <Ice/Ice.h>
#include <Item.h>
#include <stdlib.h>
using namespace std;
using namespace Warehouse;
const int readCount = 15000;
const int writeCount = 1500;
const int objectCount = 10000;
class WarehouseClient : public Ice::Application
{
public:
virtual int run(int, char*[]);
};
int
main(int argc, char* argv[])
{
WarehouseClient app;
return app.main(argc, argv, "config.client");
}
class ReaderThread : public IceUtil::Thread
{
public:
ReaderThread(const ItemPrx& anItem) :
_anItem(anItem),
_requestsPerSecond(-1)
{
}
virtual void run()
{
//
// Measures how long it takes to read 'readCount' items at random
//
IceUtil::Time start = IceUtil::Time::now(IceUtil::Time::Monotonic);
try
{
for(int i = 0; i < readCount; ++i)
{
int id = rand() % objectCount;
ostringstream os;
os << "P/N " << id;
string name = os.str();
Ice::Identity identity;
identity.name = name;
ItemPrx item = ItemPrx::uncheckedCast(_anItem->ice_identity(identity));
item->getDescription();
}
_requestsPerSecond =
static_cast<int>(readCount / (IceUtil::Time::now(IceUtil::Time::Monotonic) - start).toSecondsDouble());
}
catch(const IceUtil::Exception& e)
{
cerr << "Unexpected exception in ReaderThread: " << e << endl;
}
}
int getRequestsPerSecond() const
{
return _requestsPerSecond;
}
private:
const ItemPrx _anItem;
int _requestsPerSecond;
};
typedef IceUtil::Handle<ReaderThread> ReaderThreadPtr;
class WriterThread : public IceUtil::Thread
{
public:
WriterThread(const ItemPrx& anItem) :
_anItem(anItem),
_requestsPerSecond(-1)
{
}
virtual void run()
{
//
// Measure how long it takes to write 'writeCount' items at random.
//
IceUtil::Time start = IceUtil::Time::now(IceUtil::Time::Monotonic);
try
{
for(int i = 0; i < writeCount; ++i)
{
int id = rand() % objectCount;
ostringstream os;
os << "P/N " << id;
string name = os.str();
Ice::Identity identity;
identity.name = name;
ItemPrx item = ItemPrx::uncheckedCast(_anItem->ice_identity(identity));
item->adjustStock(1);
}
_requestsPerSecond =
static_cast<int>(writeCount / (IceUtil::Time::now(IceUtil::Time::Monotonic) - start).toSecondsDouble());
}
catch(const IceUtil::Exception& e)
{
cerr << "Unexpected exception in WriterThread: " << e << endl;
}
}
int getRequestsPerSecond() const
{
return _requestsPerSecond;
}
private:
const ItemPrx _anItem;
int _requestsPerSecond;
};
typedef IceUtil::Handle<WriterThread> WriterThreadPtr;
int
WarehouseClient::run(int argc, char*[])
{
if(argc > 1)
{
cerr << appName() << ": too many arguments" << endl;
return EXIT_FAILURE;
}
//
// Initialize pseudo-random number generator; here, for fair comparisons,
// it's useful to get the same sequence for each run.
//
srand(1);
//
// Retrieve a proxy to one item (any item will do).
//
ItemPrx anItem = ItemPrx::checkedCast(communicator()->propertyToProxy("Item.Proxy"));
//
// Start 1 writer and 5 readers.
//
WriterThreadPtr wt = new WriterThread(anItem);
wt->start();
const int readerCount = 5;
ReaderThreadPtr rt[readerCount];
int i;
for(i = 0; i < readerCount; ++i)
{
rt[i] = new ReaderThread(anItem);
rt[i]->start();
}
wt->getThreadControl().join();
for(i = 0; i < readerCount; ++i)
{
rt[i]->getThreadControl().join();
}
//
// Display results.
//
cout.precision(3);
int rpt = wt->getRequestsPerSecond();
if(rpt > 0)
{
cout << "Writer: " << rpt << " requests per second (" << 1000.0 / rpt << " ms per request)" << endl;
}
for(i = 0; i < readerCount; ++i)
{
rpt = rt[i]->getRequestsPerSecond();
if(rpt > 0)
{
cout << "Reader " << i << ": " << rpt << " requests per second (" << 1000.0 / rpt
<< " ms per request)" << endl;
}
}
return EXIT_SUCCESS;
}
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