From 7885870df337869581a87f7308e40af7ad0285db Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Sun, 6 Dec 1998 00:39:24 +0000 Subject: 1998-12-05 Roland McGrath * sysdeps/mach/hurd/poll.c: New file. --- sysdeps/mach/hurd/poll.c | 50 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 sysdeps/mach/hurd/poll.c (limited to 'sysdeps/mach') diff --git a/sysdeps/mach/hurd/poll.c b/sysdeps/mach/hurd/poll.c new file mode 100644 index 0000000000..a6d91b5473 --- /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 +#include +#include +#include + +/* 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) -- cgit 1.4.1