//threadpoolmain.cpp
#include <iostream>
#include "threadpool.h"
using namespace std;
#define ITERATIONS 200
class SampleWorkerThread : public WorkerThread
{
public:
int id;
unsigned virtual executeThis()
{
// Instead of sleep() we could do anytime consuming work here.
//Using ThreadPools is advantageous only when the work to be done is really time consuming. (atleast 1 or 2 seconds)
sleep(2);
return(0);
}
SampleWorkerThread(int id) : WorkerThread(id), id(id)
{
// cout << "Creating SampleWorkerThread " << id << "\t address=" << this << endl;
}
~SampleWorkerThread()
{
// cout << "Deleting SampleWorkerThread " << id << "\t address=" << this << endl;
}
};
int main(int argc, char **argv)
{
//ThreadPool(N);
//Create a Threadpool with N number of threads
ThreadPool* myPool = new ThreadPool(25);
myPool->initializeThreads();
//We will count time elapsed after initializeThreads()
time_t t1=time(NULL);
//Lets start bullying ThreadPool with tonnes of work !!!
for(unsigned int i=0;i<ITERATIONS;i++){
SampleWorkerThread* myThread = new SampleWorkerThread(i);
//cout << "myThread[" << myThread->id << "] = [" << myThread << "]" << endl;
myPool->assignWork(myThread);
}
// destroyPool(int maxPollSecs)
// Before actually destroying the ThreadPool, this function checks if all the pending work is completed.
// If the work is still not done, then it will check again after maxPollSecs
// The default value for maxPollSecs is 2 seconds.
// And ofcourse the user is supposed to adjust it for his needs.
myPool->destroyPool(2);
time_t t2=time(NULL);
cout << t2-t1 << " seconds elapsed\n" << endl;
delete myPool;
return 0;
}
