rtdm.h

/*
 * Copyright (C) 2014 Philippe Gerum <rpm@xenomai.org>.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This 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
 * Lesser General Public License for more details.

 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
 */
#ifndef _XENOMAI_TRANK_RTDM_RTDM_H
#define _XENOMAI_TRANK_RTDM_RTDM_H

#include_next <rtdm/rtdm.h>

#ifdef __cplusplus
extern "C" {
#endif

#ifndef RTDM_NO_DEFAULT_USER_API

#define rt_dev_call(__call, __args...)  \
({                                      \
        int __ret;                      \
        __ret = __RT(__call(__args));   \
        __ret < 0 ? -errno : __ret;     \
})

#define rt_dev_open(__args...)          rt_dev_call(open, __args)
#define rt_dev_ioctl(__args...)         rt_dev_call(ioctl, __args)

static inline int rt_dev_socket(int domain, int type, int protocol)
{
        return rt_dev_call(socket, domain, type, protocol);
}

static inline ssize_t rt_dev_recvmsg(int fd, struct msghdr *msg, int flags)
{
        return rt_dev_call(recvmsg, fd, msg, flags);
}

static inline ssize_t rt_dev_recv(int fd, void *buf, size_t len, int flags)
{
        return rt_dev_call(recvfrom, fd, buf, len, flags, NULL, NULL);
}

static inline ssize_t rt_dev_sendmsg(int fd, const struct msghdr *msg, int flags)
{
        return rt_dev_call(sendmsg, fd, msg, flags);
}

static inline ssize_t rt_dev_sendto(int fd, const void *buf, size_t len,
                                    int flags, const struct sockaddr *to,
                                    socklen_t tolen)
{
        struct iovec iov;
        struct msghdr msg;

        iov.iov_base = (void *)buf;
        iov.iov_len = len;

        msg.msg_name = (struct sockaddr *)to;
        msg.msg_namelen = tolen;
        msg.msg_iov = &iov;
        msg.msg_iovlen = 1;
        msg.msg_control = NULL;
        msg.msg_controllen = 0;

        return rt_dev_call(sendmsg, fd, &msg, flags);
}

static inline ssize_t rt_dev_send(int fd, const void *buf, size_t len,
                                  int flags)
{
        return rt_dev_call(sendto, fd, buf, len, flags, NULL, 0);
}

static inline int rt_dev_getsockopt(int fd, int level, int optname,
                                    void *optval, socklen_t *optlen)
{
        struct _rtdm_getsockopt_args args = {
                level, optname, optval, optlen
        };

        return rt_dev_call(ioctl, fd, _RTIOC_GETSOCKOPT, &args);
}

static inline int rt_dev_setsockopt(int fd, int level, int optname,
                                    const void *optval, socklen_t optlen)
{
        struct _rtdm_setsockopt_args args = {
                level, optname, (void *)optval, optlen
        };

        return rt_dev_call(ioctl, fd, _RTIOC_SETSOCKOPT, &args);
}

static inline int rt_dev_bind(int fd, const struct sockaddr *my_addr,
                              socklen_t addrlen)
{
        struct _rtdm_setsockaddr_args args = { my_addr, addrlen };

        return rt_dev_call(ioctl, fd, _RTIOC_BIND, &args);
}

static inline int rt_dev_connect(int fd, const struct sockaddr *serv_addr,
                                 socklen_t addrlen)
{
        struct _rtdm_setsockaddr_args args = { serv_addr, addrlen };

        return rt_dev_call(ioctl, fd, _RTIOC_CONNECT, &args);
}

static inline int rt_dev_listen(int fd, int backlog)
{
        return rt_dev_call(ioctl, fd, _RTIOC_LISTEN, backlog);
}

static inline int rt_dev_accept(int fd, struct sockaddr *addr,
                                socklen_t *addrlen)
{
        struct _rtdm_getsockaddr_args args = { addr, addrlen };

        return rt_dev_call(ioctl, fd, _RTIOC_ACCEPT, &args);
}

static inline int rt_dev_getsockname(int fd, struct sockaddr *name,
                                     socklen_t *namelen)
{
        struct _rtdm_getsockaddr_args args = { name, namelen };

        return rt_dev_call(ioctl, fd, _RTIOC_GETSOCKNAME, &args);
}

static inline int rt_dev_getpeername(int fd, struct sockaddr *name,
                                     socklen_t *namelen)
{
        struct _rtdm_getsockaddr_args args = { name, namelen };

        return rt_dev_call(ioctl, fd, _RTIOC_GETPEERNAME, &args);
}

static inline int rt_dev_shutdown(int fd, int how)
{
        return rt_dev_call(ioctl, fd, _RTIOC_SHUTDOWN, how);
}

static inline int rt_dev_close(int fd)
{
        return rt_dev_call(close, fd);
}

static inline ssize_t rt_dev_write(int fd, const void *buf, size_t len)
{
        return rt_dev_call(write, fd, buf, len);
}

static inline ssize_t rt_dev_read(int fd, void *buf, size_t len)
{
        return rt_dev_call(read, fd, buf, len);
}

#endif /* !RTDM_NO_DEFAULT_USER_API */

#ifdef __cplusplus
}
#endif

#endif /* _XENOMAI_TRANK_RTDM_RTDM_H */