void sig_initialize(void)
{
/* Initialize free lists */
sq_init(&g_sigfreeaction);
sq_init(&g_sigpendingaction);
sq_init(&g_sigpendingirqaction);
sq_init(&g_sigpendingsignal);
sq_init(&g_sigpendingirqsignal);
/* Add a block of signal structures to each list */
g_sigpendingactionalloc =
sig_allocateblock(&g_sigpendingaction,
NUM_PENDING_ACTIONS,
SIG_ALLOC_FIXED);
g_sigpendingirqactionalloc =
sig_allocateblock(&g_sigpendingirqaction,
NUM_PENDING_INT_ACTIONS,
SIG_ALLOC_IRQ);
sig_allocateactionblock();
g_sigpendingsignalalloc =
sig_allocatependingsignalblock(&g_sigpendingsignal,
NUM_SIGNALS_PENDING,
SIG_ALLOC_FIXED);
g_sigpendingirqsignalalloc =
sig_allocatependingsignalblock(&g_sigpendingirqsignal,
NUM_INT_SIGNALS_PENDING,
SIG_ALLOC_IRQ);
}
static FAR sigactq_t *sig_allocateaction(void)
{
FAR sigactq_t *sigact;
/* Try to get the signal action structure from the free list */
sigact = (FAR sigactq_t*)sq_remfirst(&g_sigfreeaction);
/* Check if we got one. */
if (!sigact)
{
/* Add another block of signal actions to the list */
sig_allocateactionblock();
/* And try again */
sigact = (FAR sigactq_t*)sq_remfirst(&g_sigfreeaction);
if (!sigact)
{
PANIC(OSERR_OUTOFMEMORY);
}
}
return sigact;
}
