void rtcan_socket_cleanup(struct rtdm_dev_context *context)
{
struct rtcan_socket *sock = (struct rtcan_socket *)&context->dev_private;
struct tx_wait_queue *tx_waiting;
rtdm_lockctx_t lock_ctx;
int tx_list_empty;
/* Wake up sleeping senders. This is re-entrant-safe. */
do {
RTDM_EXECUTE_ATOMICALLY(
/* Is someone there? */
if (list_empty(&sock->tx_wait_head))
tx_list_empty = 1;
else {
tx_list_empty = 0;
/* Get next entry pointing to a waiting task */
tx_waiting = list_entry(sock->tx_wait_head.next,
struct tx_wait_queue, tx_wait_list);
/* Remove it from list */
list_del(&tx_waiting->tx_wait_list);
/* Wake task up (atomic section is left implicitly) */
rtdm_task_unblock(tx_waiting->rt_task);
}
);
} while (!tx_list_empty);
static void tdma_dev_close(struct rtdm_fd *fd)
{
struct tdma_dev_ctx *ctx = rtdm_fd_to_private(fd);
RTDM_EXECUTE_ATOMICALLY(
if (ctx->cycle_waiter)
rtdm_task_unblock(ctx->cycle_waiter);
);
void rtcan_socket_cleanup(struct rtdm_fd *fd)
{
struct rtcan_socket *sock = rtdm_fd_to_private(fd);
struct tx_wait_queue *tx_waiting;
rtdm_lockctx_t lock_ctx;
int tx_list_empty;
/* Wake up sleeping senders. This is re-entrant-safe. */
do {
cobalt_atomic_enter(lock_ctx);
/* Is someone there? */
if (list_empty(&sock->tx_wait_head))
tx_list_empty = 1;
else {
tx_list_empty = 0;
/* Get next entry pointing to a waiting task */
tx_waiting = list_entry(sock->tx_wait_head.next,
struct tx_wait_queue, tx_wait_list);
/* Remove it from list */
list_del(&tx_waiting->tx_wait_list);
/* Wake task up (atomic section is left implicitly) */
rtdm_task_unblock(tx_waiting->rt_task);
}
cobalt_atomic_leave(lock_ctx);
} while (!tx_list_empty);
rtdm_sem_destroy(&sock->recv_sem);
rtdm_lock_get_irqsave(&rtcan_recv_list_lock, lock_ctx);
if (sock->socket_list.next) {
list_del(&sock->socket_list);
sock->socket_list.next = NULL;
}
rtdm_lock_put_irqrestore(&rtcan_recv_list_lock, lock_ctx);
}