1998-12-05 Roland McGrath <roland@baalperazim.frob.com>

* sysdeps/mach/hurd/poll.c: New file.

diff --git a/sysdeps/mach/hurd/poll.c b/sysdeps/mach/hurd/poll.c
new file mode 100644 (file)
index 0000000..a6d91b5
--- /dev/null
+++ b/sysdeps/mach/hurd/poll.c
@@ -0,0 +1,50 @@
+/* poll file descriptors.  Hurd version.
+   Copyright (C) 1998 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <sys/poll.h>
+#include <sys/time.h>
+#include <hurd.h>
+#include <hurd/fd.h>
+
+/* Poll the file descriptors described by the NFDS structures starting at
+   FDS.  If TIMEOUT is nonzero and not -1, allow TIMEOUT milliseconds for
+   an event to occur; if TIMEOUT is -1, block until an event occurs.
+   Returns the number of file descriptors with events, zero if timed out,
+   or -1 for errors.  */
+
+int
+__poll (fds, nfds, timeout)
+     struct pollfd *fds;
+     unsigned long int nfds;
+     int timeout;
+{
+  struct timespec ts, *to;
+
+  if (timeout < 0)
+    to = NULL;
+  else
+    {
+      ts.tv_sec = timeout / 1000;
+      ts.tv_nsec = (timeout % 1000) * 1000000;
+      to = &ts;
+    }
+
+  return _hurd_select (nfds, fds, NULL, NULL, NULL, &ts, NULL);
+}
+weak_alias (__poll, poll)