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| -rw-r--r-- | include/sys/poll.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/include/sys/poll.h b/include/sys/poll.h new file mode 100644 index 000000000..9cb60e72e --- /dev/null +++ b/include/sys/poll.h @@ -0,0 +1,51 @@ +/* Compatibility definitions for System V `poll' interface. + Copyright (C) 1994, 1996, 1997, 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. */ + +#ifndef _SYS_POLL_H +#define _SYS_POLL_H 1 + +#include <features.h> + +/* Get the platform dependent bits of `poll'. */ +#include <bits/poll.h> + +__BEGIN_DECLS + +/* Data structure describing a polling request. */ +struct pollfd + { + int fd; /* File descriptor to poll. */ + short int events; /* Types of events poller cares about. */ + short int revents; /* Types of events that actually occurred. */ + }; + + +/* 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. */ +extern int __poll __P ((struct pollfd *__fds, unsigned long int __nfds, + int __timeout)); +extern int poll __P ((struct pollfd *__fds, unsigned long int __nfds, + int __timeout)); + +__END_DECLS + +#endif /* sys/poll.h */ |