void task1() // producer task
{
unsigned int data_token = 0;
while(true) {
cout << "\ttask 1 " << " starts some computation at t=" << sc_time_stamp() << endl;
consume(t_prod);
cout << "\ttask 1 " << " dumps data on the circular buffer at t=" << sc_time_stamp() << endl;
#ifdef _USING_SEMAPHORE_FOR_PROTECTING_THE_ACCESS
write_sem.wait();
#endif
unprotected_cbuff.push(data_token);
#ifdef _USING_SEMAPHORE_FOR_PROTECTING_THE_ACCESS
read_sem.post();
#endif
data_token++;
#ifdef _USING_FLAG_FOR_PROTECTING_THE_ACCESS
flag1.set();
#endif
}
}
void task2() // consumer task
{
while(true) {
cout << "Task 2 waits for data at time " << sc_time_stamp() << endl;
#ifdef _USING_FLAG_FOR_PROTECTING_THE_ACCESS
wait(flag1);
#endif
#ifdef _USING_SEMAPHORE_FOR_PROTECTING_THE_ACCESS
read_sem.wait();
#endif
// KisTA model
cout << "task 2 " << "READ " << unprotected_cbuff.pop() << " from circular buffer at t=" << sc_time_stamp() << endl;
consume(t_cons);
cout << "task 2 " << "ends some processing at t=" << sc_time_stamp() << endl;
#ifdef _USING_SEMAPHORE_FOR_PROTECTING_THE_ACCESS
write_sem.post();
#endif
}
}
void run(semaphore & sync_sem)
{
running.store(true, boost::memory_order_relaxed);
sync_sem.post();
perform();
}