1 files changed, 33 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..2c509ede
--- /dev/null
+++ b/src/VBox/NetworkServices/NAT/winpoll.h
@@ -0,0 +1,33 @@
+#ifndef _WINPOLL_H_
+#define _WINPOLL_H_
+# 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