[PATCH] RTEMS: Add <poll.h> and <sys/poll.h>

[Jeff Johnston]

Patch applied.

-- Jeff J.

On Mon, Jan 4, 2021 at 1:42 PM Sebastian Huber <
sebastian.huber@embedded-brains.de> wrote:

> Add the POSIX header file <poll.h> which is used by the GCC 11 Ada
> runtime support.
>
> Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
> ---
>  newlib/libc/sys/rtems/include/poll.h     |   1 +
>  newlib/libc/sys/rtems/include/sys/poll.h | 106 +++++++++++++++++++++++
>  2 files changed, 107 insertions(+)
>  create mode 100644 newlib/libc/sys/rtems/include/poll.h
>  create mode 100644 newlib/libc/sys/rtems/include/sys/poll.h
>
> diff --git a/newlib/libc/sys/rtems/include/poll.h
> b/newlib/libc/sys/rtems/include/poll.h
> new file mode 100644
> index 000000000..06fb41ab8
> --- /dev/null
> +++ b/newlib/libc/sys/rtems/include/poll.h
> @@ -0,0 +1 @@
> +#include <sys/poll.h>
> diff --git a/newlib/libc/sys/rtems/include/sys/poll.h
> b/newlib/libc/sys/rtems/include/sys/poll.h
> new file mode 100644
> index 000000000..7cdbbbb59
> --- /dev/null
> +++ b/newlib/libc/sys/rtems/include/sys/poll.h
> @@ -0,0 +1,106 @@
> +/*-
> + * SPDX-License-Identifier: BSD-3-Clause
> + *
> + * Copyright (c) 1997 Peter Wemm <peter@freebsd.org>
> + * All rights reserved.
> + *
> + * Redistribution and use in source and binary forms, with or without
> + * modification, are permitted provided that the following conditions
> + * are met:
> + * 1. Redistributions of source code must retain the above copyright
> + *    notice, this list of conditions and the following disclaimer.
> + * 2. Redistributions in binary form must reproduce the above copyright
> + *    notice, this list of conditions and the following disclaimer in the
> + *    documentation and/or other materials provided with the distribution.
> + * 3. The name of the author may not be used to endorse or promote
> products
> + *    derived from this software without specific prior written
> permission.
> + *
> + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
> + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
> + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
> PURPOSE
> + * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
> + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
> CONSEQUENTIAL
> + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
> + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
> + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
> STRICT
> + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
> WAY
> + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
> + * SUCH DAMAGE.
> + *
> + * $FreeBSD$
> + */
> +
> +#ifndef _SYS_POLL_H_
> +#define        _SYS_POLL_H_
> +
> +#include <sys/cdefs.h>
> +
> +/*
> + * This file is intended to be compatible with the traditional poll.h.
> + */
> +
> +typedef        unsigned int    nfds_t;
> +
> +/*
> + * This structure is passed as an array to poll(2).
> + */
> +struct pollfd {
> +       int     fd;             /* which file descriptor to poll */
> +       short   events;         /* events we are interested in */
> +       short   revents;        /* events found on return */
> +};
> +
> +/*
> + * Requestable events.  If poll(2) finds any of these set, they are
> + * copied to revents on return.
> + * XXX Note that FreeBSD doesn't make much distinction between POLLPRI
> + * and POLLRDBAND since none of the file types have distinct priority
> + * bands - and only some have an urgent "mode".
> + * XXX Note POLLIN isn't really supported in true SVSV terms.  Under SYSV
> + * POLLIN includes all of normal, band and urgent data.  Most poll
> handlers
> + * on FreeBSD only treat it as "normal" data.
> + */
> +#define        POLLIN          0x0001          /* any readable data
> available */
> +#define        POLLPRI         0x0002          /* OOB/Urgent readable
> data */
> +#define        POLLOUT         0x0004          /* file descriptor is
> writeable */
> +#define        POLLRDNORM      0x0040          /* non-OOB/URG data
> available */
> +#define        POLLWRNORM      POLLOUT         /* no write type
> differentiation */
> +#define        POLLRDBAND      0x0080          /* OOB/Urgent readable
> data */
> +#define        POLLWRBAND      0x0100          /* OOB/Urgent data can be
> written */
> +
> +#if __BSD_VISIBLE
> +/* General FreeBSD extension (currently only supported for sockets): */
> +#define        POLLINIGNEOF    0x2000          /* like POLLIN, except
> ignore EOF */
> +#endif
> +
> +/*
> + * These events are set if they occur regardless of whether they were
> + * requested.
> + */
> +#define        POLLERR         0x0008          /* some poll error
> occurred */
> +#define        POLLHUP         0x0010          /* file descriptor was
> "hung up" */
> +#define        POLLNVAL        0x0020          /* requested events
> "invalid" */
> +
> +#if __BSD_VISIBLE
> +
> +#define        POLLSTANDARD
> (POLLIN|POLLPRI|POLLOUT|POLLRDNORM|POLLRDBAND|\
> +                        POLLWRBAND|POLLERR|POLLHUP|POLLNVAL)
> +
> +/*
> + * Request that poll() wait forever.
> + * XXX in SYSV, this is defined in stropts.h, which is not included
> + * by poll.h.
> + */
> +#define        INFTIM          (-1)
> +
> +#endif
> +
> +#ifndef _KERNEL
> +
> +__BEGIN_DECLS
> +int    poll(struct pollfd _pfd[], nfds_t _nfds, int _timeout);
> +__END_DECLS
> +
> +#endif /* !_KERNEL */
> +
> +#endif /* !_SYS_POLL_H_ */
> --
> 2.26.2
>
>