+
+#ifdef HAVE_GNUTLS
+ /* GnuTLS buffers data internally. In lowat mode it leaves
+ some data in the TCP buffers so that select works, but
+ with custom pull/push functions we need to check if some
+ data is available in the buffers manually. */
+ if (nfds == 0 &&
+ wait_proc && wait_proc->gnutls_p /* Check for valid process. */
+ /* Do we have pending data? */
+ && emacs_gnutls_record_check_pending (wait_proc->gnutls_state) > 0)
+ {
+ nfds = 1;
+ /* Set to Available. */
+ FD_SET (wait_proc->infd, &Available);
+ }
+#endif