Attempt2.cpp

#include "StudentFile.h"
#include <chrono>
#include <future>
using namespace std;
using namespace std::chrono;

int main(int argc, char** argv){

if (argc!=2)
{
cerr<<"Too much or too less arguments\n";
exit(1);
}

StudentList* mylist;
mylist=new StudentList;


std::mutex* shared;
//StudentFile mine(mylist,argv[1]);
StudentFile* mine=new StudentFile(mylist,argv[1]);

mine->set_mutex(shared);
cout<<"hello from before the first thread \n";
std::thread t1(&StudentFile::processFile,mine,mine);

std::thread t2(&StudentFile::processFile,mine,mine);
std::thread t3(&StudentFile::processFile,mine,mine);
cout<<"hello from after the first thread \n";
t1.join();
t2.join();
t3.join();

    cout<<"hello form after the mutex \n";
/*
std::future<int> a = std::async(std::launch::async, &StudentFile::processFile,mine, mine);
std::future<int> b = std::async(std::launch::async, &StudentFile::processFile,mine, mine);
    cout<<"hello from the async mutex \n";

    std::chrono::milliseconds span (100);

while (a.wait_for(std::chrono::milliseconds(10000)) != future_status::ready) cout << "a:" << a.get() << endl;;
while (b.wait_for(std::chrono::milliseconds(10000)) != future_status::ready)cout << "b:" << b.get() << endl;  ;
*/





cout<<"hello world\n";

delete mine;
delete mylist;
return 0;

}