int _zbar_thread_start (zbar_thread_t *thr,
zbar_thread_proc_t *proc,
void *arg,
zbar_mutex_t *lock)
{
HANDLE hthr;
int rc;
if(thr->started || thr->running)
return(-1/*FIXME*/);
thr->started = 1;
_zbar_event_init(&thr->notify);
_zbar_event_init(&thr->activity);
hthr = CreateThread(NULL, 0, proc, arg, 0, NULL);
rc = (!hthr ||
_zbar_event_wait(&thr->activity, NULL, NULL) < 0 ||
!thr->running);
CloseHandle(hthr);
if(rc) {
thr->started = 0;
_zbar_event_destroy(&thr->notify);
_zbar_event_destroy(&thr->activity);
return(-1/*FIXME*/);
}
return(0);
}
static __inline proc_waiter_t *proc_waiter_queue (zbar_processor_t *proc)
{
proc_waiter_t *waiter = proc->free_waiter;
if(waiter) {
proc->free_waiter = waiter->next;
waiter->events = 0;
}
else {
waiter = calloc(1, sizeof(proc_waiter_t));
_zbar_event_init(&waiter->notify);
}
waiter->next = NULL;
waiter->requester = _zbar_thread_self();
if(proc->wait_head)
proc->wait_tail->next = waiter;
else
proc->wait_head = waiter;
proc->wait_tail = waiter;
return(waiter);
}
