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//
// Copyright (c) ZeroC, Inc. All rights reserved.
//
#include <IceUtil/UUID.h>
#include <IceUtil/Random.h>
#include <IceUtil/Time.h>
#include <IceUtil/Thread.h>
#include <IceUtil/Mutex.h>
#include <IceUtil/MutexPtrLock.h>
#include <TestHelper.h>
#include <set>
#include <vector>
using namespace IceUtil;
using namespace std;
namespace
{
Mutex* staticMutex = 0;
class Init
{
public:
Init()
{
staticMutex = new IceUtil::Mutex;
}
~Init()
{
delete staticMutex;
staticMutex = 0;
}
};
Init init;
}
inline void usage(const char* myName)
{
cerr << "Usage: " << myName << " [number of UUIDs to generate] [number of threads]" << endl;
}
template<typename T, typename GenerateFunc> class InsertThread : public Thread
{
public:
typedef set<T> ItemSet;
InsertThread(int threadId, ItemSet& itemSet, GenerateFunc func, long howMany, bool verbose)
: _threadId(threadId), _itemSet(itemSet), _func(func), _howMany(howMany), _verbose(verbose)
{
}
void run()
{
for(long i = 0; i < _howMany; i++)
{
T item = _func();
IceUtilInternal::MutexPtrLock<IceUtil::Mutex> lock(staticMutex);
pair<typename ItemSet::iterator, bool> ok = _itemSet.insert(item);
if(!ok.second)
{
cerr << "******* iteration " << i << endl;
cerr << "******* Duplicate item: " << *ok.first << endl;
}
test(ok.second);
if(_verbose && i > 0 && (i % 100000 == 0))
{
cout << "Thread " << _threadId << ": generated " << i << " UUIDs." << endl;
}
}
}
private:
int _threadId;
ItemSet& _itemSet;
GenerateFunc _func;
long _howMany;
bool _verbose;
};
struct GenerateUUID
{
string
operator()()
{
return generateUUID();
}
};
struct GenerateRandomString
{
string
operator()()
{
string s;
s.resize(21);
char buf[21];
IceUtilInternal::generateRandom(buf, sizeof(buf));
for(unsigned int i = 0; i < sizeof(buf); ++i)
{
s[i] = 33 + static_cast<unsigned char>(buf[i]) % (127 - 33); // We use ASCII 33-126 (from ! to ~, w/o space).
}
// cerr << s << endl;
return s;
}
};
struct GenerateRandomInt
{
public:
int
operator()()
{
return static_cast<int>(IceUtilInternal::random());
}
};
template<typename T, typename GenerateFunc> void
runTest(int threadCount, GenerateFunc func, long howMany, bool verbose, string name)
{
cout << "Generating " << howMany << " " << name << "s using " << threadCount << " thread";
if(threadCount > 1)
{
cout << "s";
}
cout << "... ";
if(verbose)
{
cout << endl;
}
else
{
cout << flush;
}
set<T> itemSet;
vector<ThreadControl> threads;
Time start = Time::now();
for(int i = 0; i < threadCount; i++)
{
ThreadPtr t = new InsertThread<T, GenerateFunc>(i, itemSet, func, 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 " << name << " took an average of "
<< (double) ((finish - start).toMicroSeconds()) / howMany
<< " micro seconds to generate and insert into a set."
<< endl;
}
}
class Client : public Test::TestHelper
{
public:
virtual void run(int argc, char* argv[]);
};
void
Client::run(int argc, char* argv[])
{
long howMany = 300000;
int threadCount = 3;
bool verbose = false;
if(argc > 3)
{
usage(argv[0]);
throw std::invalid_argument("too many arguments");
}
if(argc > 1)
{
howMany = atol(argv[1]);
if(howMany == 0)
{
usage(argv[0]);
throw invalid_argument("argv[1] howMany is not a number");
}
}
if(argc > 2)
{
threadCount = atoi(argv[2]);
if(threadCount <= 0)
{
usage(argv[0]);
throw invalid_argument("argv[2] threadCount is not a number");
}
verbose = true;
}
runTest<string, GenerateUUID>(threadCount, GenerateUUID(), howMany, verbose, "UUID");
runTest<string, GenerateRandomString>(threadCount, GenerateRandomString(), howMany, verbose, "string");
}
DEFINE_TEST(Client);
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