1 files changed, 53 insertions, 0 deletions
diff --git a/src/VBox/NetworkServices/NAT/winpoll.h b/src/VBox/NetworkServices/NAT/winpoll.h
new file mode 100644
index 00000000..5016f432
--- /dev/null
+++ b/src/VBox/NetworkServices/NAT/winpoll.h
@@ -0,0 +1,53 @@
+/* $Id: winpoll.h $ */
+/** @file
+ * NAT Network - poll(2) for winsock, definitions and declarations.
+ */
+
+/*
+ * Copyright (C) 2013-2019 Oracle Corporation
+ *
+ * This file is part of VirtualBox Open Source Edition (OSE), as
+ * available from http://www.virtualbox.org. This file is free software;
+ * you can redistribute it and/or modify it under the terms of the GNU
+ * General Public License (GPL) as published by the Free Software
+ * Foundation, in version 2 as it comes in the "COPYING" file of the
+ * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
+ * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
+ */
+
+#ifndef VBOX_INCLUDED_SRC_NAT_winpoll_h
+#define VBOX_INCLUDED_SRC_NAT_winpoll_h
+#ifndef RT_WITHOUT_PRAGMA_ONCE
+# pragma once
+#endif
+# include <iprt/cdefs.h>
+/**
+ * WinSock2 has definition for POLL* and pollfd, but it defined for _WIN32_WINNT > 0x0600
+ * and used in WSAPoll, which has very unclear history.
+ */
+# if(_WIN32_WINNT < 0x0600)
+#  define POLLRDNORM  0x0100
+#  define POLLRDBAND  0x0200
+#  define POLLIN      (POLLRDNORM | POLLRDBAND)
+#  define POLLPRI     0x0400
+
+#  define POLLWRNORM  0x0010
+#  define POLLOUT     (POLLWRNORM)
+#  define POLLWRBAND  0x0020
+
+#  define POLLERR     0x0001
+#  define POLLHUP     0x0002
+#  define POLLNVAL    0x0004
+
+struct pollfd {
+
+    SOCKET  fd;
+    SHORT   events;
+    SHORT   revents;
+
+};
+#endif
+RT_C_DECLS_BEGIN
+int RTWinPoll(struct pollfd *pFds, unsigned int nfds, int timeout, int *pNready);
+RT_C_DECLS_END
+#endif /* !VBOX_INCLUDED_SRC_NAT_winpoll_h */