int main(void)
{
vector_init(&sem_list);
Qvector_init(&waiting_list);
Qvector_free(&waiting_list);
vector_free(&sem_list);
return 0;
}
/*===========================================================================*
* main *
*===========================================================================*/
int main(int argc, char **argv)
{
/* This is the main routine of this service. The main loop consists of
* three major activities: getting new work, processing the work, and
* sending the reply. The loop never terminates, unless a panic occurs.
*/
message m_in;
int result;
sef_startup();
vector_init(&sem_list);
Qvector_init(&waiting_list);
stackInit(&sem_stack,5);
/* Main loop - get work and do it, forever. */
while (TRUE) {
/* Wait for incoming message, sets 'callnr' and 'who'. */
get_work(&m_in);
//printf("SEM recieved message %d\n",callnr);
if (is_notify(callnr)) {
printf("SEM: warning, got illegal notify from: %d\n", m_in.m_source);
result = EINVAL;
goto send_reply;
}
int arg = m_in.m1_i1;
switch(callnr)
{
case SEM_INIT:
//printf("Sem_init called, semaphore size 3%d.\n",arg);
result = sem_init(arg);
break;
case SEM_UP:
//printf("Sem_up called on semaphore %d.\n",arg);
result = sem_up(arg);
break;
case SEM_DOWN:
//printf("Sem_down called on semaphore %d. source: %d\n",arg,who_e);
result = sem_down(arg,m_in.m_source);
break;
case SEM_RELEASE:
//printf("Sem_release called on semaphore %d.\n",arg);
result = sem_release(arg);
break;
default:
printf("SEMAPHORE: warning, got illegal request from %d\n", m_in.m_source);
result = EINVAL;
}
send_reply:
/* Finally send reply message, unless disabled. */
if (result != EDONTREPLY) {
m_in.m_type = result; /* build reply message */
reply(who_e, &m_in); /* send it away */
}
}
Qvector_free(&waiting_list);
vector_free(&sem_list);
return(OK); /* shouldn't come here */
}
