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Annotation of prex-old/usr/lib/posix/gen/__posix_call.c, Revision 1.1

1.1     ! nbrk        1: /*
        !             2:  * Copyright (c) 2007, Kohsuke Ohtani
        !             3:  * All rights reserved.
        !             4:  *
        !             5:  * Redistribution and use in source and binary forms, with or without
        !             6:  * modification, are permitted provided that the following conditions
        !             7:  * are met:
        !             8:  * 1. Redistributions of source code must retain the above copyright
        !             9:  *    notice, this list of conditions and the following disclaimer.
        !            10:  * 2. Redistributions in binary form must reproduce the above copyright
        !            11:  *    notice, this list of conditions and the following disclaimer in the
        !            12:  *    documentation and/or other materials provided with the distribution.
        !            13:  * 3. Neither the name of the author nor the names of any co-contributors
        !            14:  *    may be used to endorse or promote products derived from this software
        !            15:  *    without specific prior written permission.
        !            16:  *
        !            17:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
        !            18:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            19:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            20:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
        !            21:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            22:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            23:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            24:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            25:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            26:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            27:  * SUCH DAMAGE.
        !            28:  */
        !            29:
        !            30: #include <prex/prex.h>
        !            31: #include <prex/message.h>
        !            32:
        !            33: #include <errno.h>
        !            34:
        !            35: /*
        !            36:  * Send a message to POSIX server.
        !            37:  *
        !            38:  * Set errno as status.
        !            39:  * If 'restart' is set to true, this function will try to send the
        !            40:  * message again even if is is interrupted by a signal.
        !            41:  */
        !            42: int
        !            43: __posix_call(object_t obj, void *msg, size_t size, int restart)
        !            44: {
        !            45:        int err;
        !            46:
        !            47:        if (obj == 0) {
        !            48:                errno = ENOSYS;
        !            49:                return -1;
        !            50:        }
        !            51:
        !            52:        do
        !            53:                err = msg_send(obj, msg, size);
        !            54:        while (err == EINTR && restart);
        !            55:
        !            56:        if (err) {
        !            57:                errno = (err == EINTR) ? EINTR : ENOSYS;
        !            58:                return -1;
        !            59:        } else if (((struct msg_header *)msg)->status) {
        !            60:                errno = ((struct msg_header *)msg)->status;
        !            61:                return -1;
        !            62:        }
        !            63:        return 0;
        !            64: }