+static int
+memif_socket_start_listening (memif_socket_t * ms)
+{
+ libmemif_main_t *lm = get_libmemif_main (ms);
+ memif_list_elt_t elt;
+ struct stat file_stat;
+ struct sockaddr_un un = { 0 };
+ int on = 1;
+ int err = MEMIF_ERR_SUCCESS;
+
+ if (ms->type == MEMIF_SOCKET_TYPE_CLIENT)
+ return MEMIF_ERR_INVAL_ARG;
+
+ /* check if file exists */
+ if (stat ((char *) ms->filename, &file_stat) == 0)
+ {
+ if (S_ISSOCK (file_stat.st_mode))
+ unlink ((char *) ms->filename);
+ else
+ return memif_syscall_error_handler (errno);
+ }
+
+ ms->fd = socket (AF_UNIX, SOCK_SEQPACKET, 0);
+ if (ms->fd < 0)
+ {
+ err = memif_syscall_error_handler (errno);
+ goto error;
+ }
+
+ DBG ("socket %d created", ms->fd);
+ un.sun_family = AF_UNIX;
+ strncpy ((char *) un.sun_path, (char *) ms->filename,
+ sizeof (un.sun_path) - 1);
+ if (setsockopt (ms->fd, SOL_SOCKET, SO_PASSCRED, &on, sizeof (on)) < 0)
+ {
+ err = memif_syscall_error_handler (errno);
+ goto error;
+ }
+ if (bind (ms->fd, (struct sockaddr *) &un, sizeof (un)) < 0)
+ {
+ err = memif_syscall_error_handler (errno);
+ goto error;
+ }
+ if (listen (ms->fd, 1) < 0)
+ {
+ err = memif_syscall_error_handler (errno);
+ goto error;
+ }
+ if (stat ((char *) ms->filename, &file_stat) < 0)
+ {
+ err = memif_syscall_error_handler (errno);
+ goto error;
+ }
+
+ /* add socket to libmemif main */
+ elt.key = ms->fd;
+ elt.data_struct = ms;
+ add_list_elt (lm, &elt, &lm->socket_list, &lm->socket_list_len);
+ lm->control_fd_update (ms->fd, MEMIF_FD_EVENT_READ, ms->private_ctx);
+
+ ms->type = MEMIF_SOCKET_TYPE_LISTENER;
+
+ return err;
+
+error:
+ if (ms->fd > 0)
+ {
+ close (ms->fd);
+ ms->fd = -1;
+ }
+ return err;
+}
+
+int
+memif_create_socket (memif_socket_handle_t * sock, const char *filename,
+ void *private_ctx)
+{
+ libmemif_main_t *lm = &libmemif_main;
+ memif_socket_t *ms = (memif_socket_t *) * sock;
+ int i, err = MEMIF_ERR_SUCCESS;
+
+ for (i = 0; i < lm->socket_list_len; i++)
+ {
+ if ((ms = (memif_socket_t *) lm->socket_list[i].data_struct) != NULL)
+ {
+ if (strncmp ((char *) ms->filename, filename,
+ strlen ((char *) ms->filename)) == 0)
+ return MEMIF_ERR_INVAL_ARG;
+ }
+ }
+
+ /* allocate memif_socket_t */
+ ms = NULL;
+ ms = lm->alloc (sizeof (memif_socket_t));
+ if (ms == NULL)
+ {
+ err = MEMIF_ERR_NOMEM;
+ goto error;
+ }
+ memset (ms, 0, sizeof (memif_socket_t));
+ /* set filename */
+ ms->filename = lm->alloc (strlen (filename) + sizeof (char));
+ if (ms->filename == NULL)
+ {
+ err = MEMIF_ERR_NOMEM;
+ goto error;
+ }
+ memset (ms->filename, 0, strlen (filename) + sizeof (char));
+ strncpy ((char *) ms->filename, filename, strlen (filename));
+
+ ms->type = MEMIF_SOCKET_TYPE_NONE;
+
+ ms->interface_list_len = 1;
+ ms->interface_list =
+ lm->alloc (sizeof (memif_list_elt_t) * ms->interface_list_len);
+ if (ms->interface_list == NULL)
+ {
+ err = MEMIF_ERR_NOMEM;
+ goto error;
+ }
+ ms->interface_list[0].key = -1;
+ ms->interface_list[0].data_struct = NULL;
+
+ *sock = ms;
+
+ return err;
+
+error:
+ if (ms != NULL)
+ {
+ if (ms->filename != NULL)
+ {
+ lm->free (ms->filename);
+ ms->filename = NULL;
+ }
+ if (ms->fd > 0)
+ {
+ close (ms->fd);
+ ms->fd = -1;
+ }
+ if (ms->interface_list != NULL)
+ {
+ lm->free (ms->interface_list);
+ ms->interface_list = NULL;
+ ms->interface_list_len = 0;
+ }
+ lm->free (ms);
+ *sock = ms = NULL;
+ }
+ return err;
+}
+
+int
+memif_per_thread_create_socket (memif_per_thread_main_handle_t pt_main,
+ memif_socket_handle_t * sock,
+ const char *filename, void *private_ctx)
+{
+ libmemif_main_t *lm = (libmemif_main_t *) pt_main;
+ memif_socket_t *ms = (memif_socket_t *) * sock;
+ int i, err = MEMIF_ERR_SUCCESS;
+
+ if (lm == NULL)
+ return MEMIF_ERR_INVAL_ARG;
+
+ for (i = 0; i < lm->socket_list_len; i++)
+ {
+ if ((ms = (memif_socket_t *) lm->socket_list[i].data_struct) != NULL)
+ {
+ if (strncmp ((char *) ms->filename, filename,
+ strlen ((char *) ms->filename)) == 0)
+ return MEMIF_ERR_INVAL_ARG;
+ }
+ }
+
+ /* allocate memif_socket_t */
+ ms = NULL;
+ ms = lm->alloc (sizeof (memif_socket_t));
+ if (ms == NULL)
+ {
+ err = MEMIF_ERR_NOMEM;
+ goto error;
+ }
+ memset (ms, 0, sizeof (memif_socket_t));
+ ms->lm = lm;
+ /* set filename */
+ ms->filename = lm->alloc (strlen (filename) + sizeof (char));
+ if (ms->filename == NULL)
+ {
+ err = MEMIF_ERR_NOMEM;
+ goto error;
+ }
+ memset (ms->filename, 0, strlen (filename) + sizeof (char));
+ strncpy ((char *) ms->filename, filename, strlen (filename));
+
+ ms->type = MEMIF_SOCKET_TYPE_NONE;
+
+ ms->interface_list_len = 1;
+ ms->interface_list =
+ lm->alloc (sizeof (memif_list_elt_t) * ms->interface_list_len);
+ if (ms->interface_list == NULL)
+ {
+ err = MEMIF_ERR_NOMEM;
+ goto error;
+ }
+ ms->interface_list[0].key = -1;
+ ms->interface_list[0].data_struct = NULL;
+
+ *sock = ms;
+
+ return err;
+
+error:
+ if (ms != NULL)
+ {
+ if (ms->filename != NULL)
+ {
+ lm->free (ms->filename);
+ ms->filename = NULL;
+ }
+ if (ms->fd > 0)
+ {
+ close (ms->fd);
+ ms->fd = -1;
+ }
+ if (ms->interface_list != NULL)
+ {
+ lm->free (ms->interface_list);
+ ms->interface_list = NULL;
+ ms->interface_list_len = 0;
+ }
+ lm->free (ms);
+ *sock = ms = NULL;
+ }
+ return err;
+}
+