cpc_lock
sigblocked = cpc_lock(cpc);
sigblocked = cpc_lock(cpc);
(void) mutex_lock(&cpc->cpc_lock);
(void) mutex_unlock(&cpc->cpc_lock);
(void) mutex_init(&cpc->cpc_lock, USYNC_THREAD, NULL);
sigblocked = cpc_lock(cpc);
sigblocked = cpc_lock(cpc);
sigblocked = cpc_lock(cpc);
sigblocked = cpc_lock(cpc);
sigblocked = cpc_lock(cpc);
static int cpc_lock(cpc_t *cpc);
mutex_t cpc_lock; /* Protect various ops */