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// **********************************************************************
//
// Copyright (c) 2003-2006 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/UUID.h>
#include <IceUtil/Time.h>
#include <IceUtil/Thread.h>
#include <IceUtil/StaticMutex.h>
#include <TestCommon.h>
#include <set>
#include <vector>
using namespace IceUtil;
using namespace std;
static StaticMutex staticMutex = ICE_STATIC_MUTEX_INITIALIZER;
inline void usage(const char* myName)
{
cerr << "Usage: " << myName << " [number of UUIDs to generate] [number of threads]" << endl;
}
class InsertThread : public Thread
{
public:
InsertThread(int threadId, set<string>& uuidSet, long howMany, bool verbose)
: _threadId(threadId), _uuidSet(uuidSet), _howMany(howMany), _verbose(verbose)
{
}
void run()
{
for(long i = 0; i < _howMany; i++)
{
string uuid = generateUUID();
StaticMutex::Lock lock(staticMutex);
pair<set<string>::iterator, bool> ok = _uuidSet.insert(uuid);
if(!ok.second)
{
cerr << "******* iteration " << i << endl;
cerr << "******* Duplicate UUID: " << *ok.first << endl;
}
test(ok.second);
if(_verbose && i > 0 && (i % 100000 == 0))
{
cout << "Thread " << _threadId << ": generated " << i << " UUIDs." << endl;
}
}
}
private:
int _threadId;
set<string>& _uuidSet;
long _howMany;
bool _verbose;
};
int main(int argc, char* argv[])
{
long howMany = 300000;
int threadCount = 3;
bool verbose = false;
if(argc > 3)
{
usage(argv[0]);
return EXIT_FAILURE;
}
else if(argc == 3)
{
howMany = atol(argv[1]);
if (howMany == 0)
{
usage(argv[0]);
return EXIT_FAILURE;
}
threadCount = atoi(argv[2]);
if(threadCount <= 0)
{
usage(argv[0]);
return EXIT_FAILURE;
}
verbose = true;
}
else if(argc == 2)
{
howMany = atol(argv[1]);
if (howMany == 0)
{
usage(argv[0]);
return EXIT_FAILURE;
}
}
cout << "Generating " << howMany << " UUIDs using " << threadCount << " thread";
if(threadCount > 1)
{
cout << "s";
}
cout << "... ";
if(verbose)
{
cout << endl;
}
else
{
cout << flush;
}
set<string> uuidSet;
vector<ThreadControl> threads;
Time start = Time::now();
for(int i = 0; i < threadCount; i++)
{
ThreadPtr t = new InsertThread(i, uuidSet, howMany / threadCount, verbose);
threads.push_back(t->start());
}
for(vector<ThreadControl>::iterator p = threads.begin(); p != threads.end(); ++p)
{
p->join();
}
Time finish = Time::now();
cout << "ok" << endl;
if(verbose)
{
cout << "Each UUID took an average of "
<< (double) ((finish - start).toMicroSeconds()) / howMany
<< " micro seconds to generate and insert into a set<string>."
<< endl;
}
return EXIT_SUCCESS;
}
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