recvbuf_t *
get_full_recv_buffer(void)
{
recvbuf_t * rbuf;
LOCK();
#ifdef HAVE_SIGNALED_IO
/*
* make sure there are free buffers when we
* wander off to do lengthy packet processing with
* any buffer we grab from the full list.
*
* fixes malloc() interrupted by SIGIO risk
* (Bug 889)
*/
if (NULL == free_recv_list || buffer_shortfall > 0) {
/*
* try to get us some more buffers
*/
create_buffers(RECV_INC);
}
#endif
/*
* try to grab a full buffer
*/
UNLINK_FIFO(rbuf, full_recv_fifo, link);
if (rbuf != NULL)
full_recvbufs--;
UNLOCK();
return rbuf;
}
recvbuf_t *
get_full_recv_buffer(void)
{
recvbuf_t * rbuf;
/*
* try to grab a full buffer
*/
UNLINK_FIFO(rbuf, full_recv_fifo, link);
if (rbuf != NULL)
full_recvbufs--;
return rbuf;
}
static void
uninit_recvbuff(void)
{
recvbuf_t *rbunlinked;
do {
UNLINK_FIFO(rbunlinked, full_recv_fifo, link);
if (rbunlinked != NULL)
free(rbunlinked);
} while (rbunlinked != NULL);
do {
UNLINK_HEAD_SLIST(rbunlinked, free_recv_list, link);
if (rbunlinked != NULL)
free(rbunlinked);
} while (rbunlinked != NULL);
}
static void
uninit_recvbuff(void)
{
recvbuf_t *rbunlinked;
for (;;) {
UNLINK_FIFO(rbunlinked, full_recv_fifo, link);
if (rbunlinked == NULL)
break;
free(rbunlinked);
}
for (;;) {
UNLINK_HEAD_SLIST(rbunlinked, free_recv_list, link);
if (rbunlinked == NULL)
break;
free(rbunlinked);
}
}
