main()
{
int p,c;
n =10;
produce_semaphore = MySemaphoreInit(2);
consume_semaphore = MySemaphoreInit(1);
MyThreadInit(temp,(void *)&n);
if(MySemaphoreDestroy(produce_semaphore) == -1)
printf("\n Error destroying producer semaphore");
if(MySemaphoreDestroy(consume_semaphore))
printf("\nError destroying consumer semaphore");
}
void MyThreadInit(void(*start_funct)(void *), void *args)
{
start = 1;
MyThread* node;
//printf("\nCP1");
ready_queue = malloc(sizeof(MyThread));
getcontext(&ready_queue->context);
ready_queue->context.uc_link=&controller;
ready_queue->context.uc_stack.ss_sp=malloc(MEM);
ready_queue->context.uc_stack.ss_size=MEM;
ready_queue->context.uc_stack.ss_flags=0;
ready_queue->id = threadCount++;
//printf("Allocation Initial Id: %d", ready_queue->id);
makecontext(&ready_queue->context, (void*)start_funct, 1, (int)args);
ucontext_t next;
int id;
getcontext(&controller);
//printf("\nAbout to Start Checking of Unblocking");
//printQueues();
CheckForUnblocking();
//printf("\nChecked for Block");
//printQueues();
if(ready_queue != NULL)
{
if(start == 1)
{
next = ready_queue->context;
id = ready_queue->id;
//printf("\n 2 Should Repeat:");
//printf("\n4Allocation Initial Id: %d", ready_queue->id);
start = 0;
//printQueues();
setcontext(&next);
}
else if (ready_queue->next != NULL)
{
ready_queue = ready_queue->next;
//CheckForUnblocking();
next = ready_queue->context;
id = ready_queue->id;
//printf("\n 2 Should Repeat:");
//printf("\nSetting Context Id: %d",id);
//printQueues();
setcontext(&next);
}
else
{
//printf("1Entering New Code");
ready_queue = NULL;
//printf("2Entering New Code");
//printQueues();
CheckForUnblocking();
//printf("1Entering New Code");
if (ready_queue != NULL)
{
next = ready_queue->context;
id = ready_queue->id;
//printf("\n 2 Should Repeat:");
//printf("\nSetting Context Id: %d",id);
//printQueues();
setcontext(&next);
}
}
}
printf("completed\n");
printQueues();
printf("Final Queue Remains: ");
MySemaphoreDestroy(sem1);
MySemaphoreDestroy(sem2);
printQueues();
}
