From c66c4a844f7fcdc071fb5b57474a3d1cd54047c0 Mon Sep 17 00:00:00 2001
From: Mikhail Svetkin <mikhail.svetkin@qt.io>
Date: Tue, 20 Mar 2018 14:41:48 +0100
Subject: [PATCH] rtems: Fix detection bad file descriptor

RTEMS does not support poll/select and etc for files and
fcntl(fd, F_GETFD) can not say that.

Change-Id: If5ad160cd81e347fac72d2bafcb5b5bb815ed059
Reviewed-by: Ryan Chu <ryan.chu@qt.io>
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
---
 src/corelib/kernel/qpoll.cpp | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/corelib/kernel/qpoll.cpp b/src/corelib/kernel/qpoll.cpp
index 8e93c4d3639..8b87bfe79d8 100644
--- a/src/corelib/kernel/qpoll.cpp
+++ b/src/corelib/kernel/qpoll.cpp
@@ -39,6 +39,10 @@
 
 #include "qcore_unix_p.h"
 
+#ifdef Q_OS_RTEMS
+#include <rtems/rtems_bsdnet_internal.h>
+#endif
+
 QT_BEGIN_NAMESPACE
 
 #define QT_POLL_READ_MASK   (POLLIN | POLLRDNORM)
@@ -135,6 +139,11 @@ static inline int qt_poll_sweep(struct pollfd *fds, nfds_t nfds,
 
 static inline bool qt_poll_is_bad_fd(int fd)
 {
+#ifdef Q_OS_RTEMS
+    if (!rtems_bsdnet_fdToSocket(fd))
+        return true;
+#endif
+
     int ret;
     EINTR_LOOP(ret, fcntl(fd, F_GETFD));
     return (ret == -1 && errno == EBADF);