- /* Not in the expected state. */
- if (g->state != BUSY)
- error (g, _("state %d != BUSY"), g->state);
-
- /* Push the message up to the higher layer. */
- if (g->reply_cb)
- g->reply_cb (g, g->reply_cb_data, &xdr);
- else
- /* This message (probably) should never be printed. */
- fprintf (stderr, "libguesfs: sock_read_event: !!! dropped message !!!\n");
-
- g->msg_in_size -= len + 4;
- memmove (g->msg_in, g->msg_in+len+4, g->msg_in_size);
- if (g->msg_in_size > 0) goto again;
-
- cleanup:
- /* Free the message buffer if it's grown excessively large. */
- if (g->msg_in_allocated > 65536) {
- free (g->msg_in);
- g->msg_in = NULL;
- g->msg_in_size = g->msg_in_allocated = 0;
- } else
- g->msg_in_size = 0;
-
- xdr_destroy (&xdr);
-}
-
-/* The function is called whenever we can write something on the
- * guestfsd (daemon inside the guest) communication socket.
- */
-static void
-sock_write_event (struct guestfs_main_loop *ml, guestfs_h *g, void *data,
- int watch, int fd, int events)
-{
- int n, err;
-
- if (g->verbose)
- fprintf (stderr,
- "sock_write_event: %p g->state = %d, fd = %d, events = 0x%x\n",
- g, g->state, fd, events);
-
- if (g->sock != fd) {
- error (g, _("sock_write_event: internal error: %d != %d"), g->sock, fd);
- return;
- }
-
- if (g->state != BUSY) {
- error (g, _("sock_write_event: state %d != BUSY"), g->state);
- return;
- }
-
- if (g->verbose)
- fprintf (stderr, "sock_write_event: writing %d bytes ...\n",
- g->msg_out_size - g->msg_out_pos);
-
- n = write (g->sock, g->msg_out + g->msg_out_pos,
- g->msg_out_size - g->msg_out_pos);
- if (n == -1) {
- err = errno;
- if (err != EAGAIN)
- perrorf (g, "write");
- if (err == EPIPE) /* Disconnected from guest (RHBZ#508713). */
- child_cleanup (g);
- return;
- }
-
- if (g->verbose)
- fprintf (stderr, "sock_write_event: wrote %d bytes\n", n);
-
- g->msg_out_pos += n;
-
- /* More to write? */
- if (g->msg_out_pos < g->msg_out_size)
- return;
-
- if (g->verbose)
- fprintf (stderr, "sock_write_event: done writing, calling send_cb\n");
-
- free (g->msg_out);
- g->msg_out = NULL;
- g->msg_out_pos = g->msg_out_size = 0;
-
- /* Done writing, call the higher layer. */
- if (g->send_cb)
- g->send_cb (g, g->send_cb_data);
-}
-
-void
-guestfs_set_send_callback (guestfs_h *g,
- guestfs_send_cb cb, void *opaque)
-{
- g->send_cb = cb;
- g->send_cb_data = opaque;
-}
-
-void
-guestfs_set_reply_callback (guestfs_h *g,
- guestfs_reply_cb cb, void *opaque)
-{
- g->reply_cb = cb;
- g->reply_cb_data = opaque;
-}
-
-void
-guestfs_set_log_message_callback (guestfs_h *g,
- guestfs_log_message_cb cb, void *opaque)
-{
- g->log_message_cb = cb;
- g->log_message_cb_data = opaque;
-}
-
-void
-guestfs_set_subprocess_quit_callback (guestfs_h *g,
- guestfs_subprocess_quit_cb cb, void *opaque)
-{
- g->subprocess_quit_cb = cb;
- g->subprocess_quit_cb_data = opaque;
-}
-
-void
-guestfs_set_launch_done_callback (guestfs_h *g,
- guestfs_launch_done_cb cb, void *opaque)
-{
- g->launch_done_cb = cb;
- g->launch_done_cb_data = opaque;
-}
-
-/* Access to the handle's main loop and the default main loop. */
-void
-guestfs_set_main_loop (guestfs_h *g, guestfs_main_loop *main_loop)
-{
- g->main_loop = main_loop;
-}
-
-guestfs_main_loop *
-guestfs_get_main_loop (guestfs_h *g)
-{
- return g->main_loop;
-}
-
-guestfs_main_loop *
-guestfs_get_default_main_loop (void)
-{
- return (guestfs_main_loop *) &default_main_loop;
-}
-
-/* Change the daemon socket handler so that we are now writing.
- * This sets the handle to sock_write_event.
- */
-int
-guestfs__switch_to_sending (guestfs_h *g)
-{
- if (g->sock_watch >= 0) {
- if (g->main_loop->remove_handle (g->main_loop, g, g->sock_watch) == -1) {
- error (g, _("remove_handle failed"));
- g->sock_watch = -1;
- return -1;
- }
- }
-
- g->sock_watch =
- g->main_loop->add_handle (g->main_loop, g, g->sock,
- GUESTFS_HANDLE_WRITABLE,
- sock_write_event, NULL);
- if (g->sock_watch == -1) {
- error (g, _("add_handle failed"));
- return -1;
- }
-