1 files changed, 75 insertions, 0 deletions

diff --git a/private/inc/sys/poll.h b/private/inc/sys/poll.h
new file mode 100644
index 000000000..e2599db6c
--- /dev/null
+++ b/private/inc/sys/poll.h
@@ -0,0 +1,75 @@
+/*++
+
+Copyright (c) 1991 Microsoft Corporation
+
+Module Name:
+
+  poll.h
+
+Abstract:
+
+  Contains #defines, types, and macros for poll
+
+Author:
+
+  Sam Patton (sampa)   July 26, 1991
+
+Revision History:
+
+--*/
+
+#ifndef SYS_POLL_INCLUDED
+#define SYS_POLL_INCLUDED
+
+/*
+ * Structure of file descriptor/event pairs supplied in
+ * the poll arrays.
+ */
+struct pollfd {
+#ifndef _POSIX_SOURCE
+        HANDLE fd;                      /* file handle to poll */
+#else
+        int   fd;                       /* file desc to poll */
+#endif
+        short events;                   /* events of interest on fd */
+        short revents;                  /* events that occurred on fd */
+};
+
+/*
+ * Testable select events
+ */
+#define POLLIN          01              /* fd is readable */
+#define POLLPRI         02              /* priority info at fd */
+#define POLLOUT         04              /* fd is writeable (won't block) */
+#define POLLMSG         0100            /* M_SIG or M_PCSIG arrived */
+
+/*
+ * Non-testable poll events (may not be specified in events field,
+ * but may be returned in revents field).
+ */
+#define POLLERR         010             /* fd has error condition */
+#define POLLHUP         020             /* fd has been hung up on */
+#define POLLNVAL        040             /* invalid pollfd entry */
+
+/*
+ * Number of pollfd entries to read in at a time in poll.
+ * The larger the value the better the performance, up to the
+ * maximum number of open files allowed.  Large numbers will
+ * use excessive amounts of kernel stack space.
+ */
+#define NPOLLFILE       20
+
+
+/*
+ * Poll function prototype
+ *
+ */
+
+int
+poll(
+    IN OUT struct pollfd *,
+    IN unsigned int,
+    IN int);
+
+
+#endif  //SYS_POLL_INCLUDED