uint32_t sys_arch_sem_wait(sys_sem_t sem, uint32_t timeout_arg) {
unsigned long flags;
unsigned long timeout;
timeout=timeout_arg*100;
while (1) {
if (sem->count <= 0 )
{
timeout=sc_wait(&(sem->wait_queue), timeout);
}
if (timeout_arg == 0) timeout=100;
spin_lock_irqsave(&(sem->sem_lock), flags);
/* Atomically check that we can proceed */
if (sem->count > 0 || (timeout <= 0))
break;
spin_unlock_irqrestore(&(sem->sem_lock), flags);
}
if (sem->count > 0) {
sem->count--;
spin_unlock_irqrestore(&(sem->sem_lock), flags);
return 1;
}
spin_unlock_irqrestore(&(sem->sem_lock), flags);
return IPC_TIMEOUT;
}
bool
init_agents()
/*
* Here we create all of the individual agents
*/
{
bool ok; /* Status of last operation */
agents_sc = sc_init(); /* Create sync controller */
if(!agents_sc) /* Failed ? */
return FALSE;
sc_begin(agents_sc); /* Start synchronisation */
#ifdef DEBUG
ok = try_each_obj(qsheets, (t_try_obj)db_new_agent,
GINT_TO_POINTER(atype_cue))
&& new_agent(NULL, GINT_TO_POINTER(atype_dek), "Decks")
&& new_agent(NULL, GINT_TO_POINTER(atype_mxr), "Mixers");
#else
ok = try_each_obj(qsheets, (t_try_obj)new_agent,
GINT_TO_POINTER(atype_cue))
&& new_agent(NULL, GINT_TO_POINTER(atype_dek))
&& new_agent(NULL, GINT_TO_POINTER(atype_mxr));
#endif
new_am_pool(); /* Create pool of msg args */
sc_ready(agents_sc); /* Signal we are ready */
if(ok) /* Everything OK? */
sc_wait(agents_sc); /* Wait for agents to start */
else
{
E("Startup failed, killing agents...");
sc_wait(agents_sc); /* Wait for agents to start */
term_agents(); /* Terminate all agents */
}
sc_reset(agents_sc); /* Kill sync controller */
return ok;
} /* init_agents() */
