/* exit:
* Shuts down the driver, freeing allocated resources, etc. All channels
* will already have been destroyed by the `destroy_channel' function, so
* normally all this needs to do is tidy up anything `init' left untidy.
* Return zero if successful, non-zero otherwise.
*/
static int local_exit(void)
{
MUTEX_LOCK(port_list);
while (port_list)
destroy_port(port_list);
MUTEX_UNLOCK(port_list);
MUTEX_DESTROY(port_list);
return 0;
}
static struct snobj *handle_reset_ports(struct snobj *q)
{
struct port *p;
while (list_ports((const struct port **)&p, 1, 0))
destroy_port(p);
printf("*** All ports have been destroyed ***\n");
return NULL;
}
/* destroy_channel:
* Called when a channel is being closed. This should tidy up anything
* that init_channel or subsequent functions have left messy, for example
* it should free any data block that has been allocated. Return zero if
* successful, non-zero otherwise.
*/
static int local_destroy_channel(NET_CHANNEL *chan)
{
channel_data_t *data = chan->data;
MUTEX_LOCK(port_list);
destroy_port(data->port);
MUTEX_UNLOCK (port_list);
free(data);
return 0;
}
static struct snobj *handle_reset_ports(struct snobj *q)
{
struct port *p;
while (list_ports((const struct port **)&p, 1, 0)) {
int ret = destroy_port(p);
if (ret)
return snobj_errno(-ret);
}
printf("*** All ports have been destroyed ***\n");
return NULL;
}
static struct snobj *handle_destroy_port(struct snobj *arg)
{
const char *port_name;
struct port *port;
int ret;
port_name = snobj_str_get(arg);
if (!port_name)
return snobj_err(EINVAL, "Argument must be a name in str");
port = find_port(port_name);
if (!port)
return snobj_err(ENOENT, "No port `%s' found", port_name);
ret = destroy_port(port);
if (ret)
return snobj_errno(-ret);
return NULL;
}