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Annotation of prex-old/usr/lib/posix/gen/__posix_call.c, Revision 1.1.1.1.2.1

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:
1.1.1.1.2.1! nbrk       52:        do {
1.1       nbrk       53:                err = msg_send(obj, msg, size);
1.1.1.1.2.1! nbrk       54:        } while (err == EINTR && restart);
1.1       nbrk       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;
1.1.1.1.2.1! nbrk       62:        } else {
        !            63:                /* DO NOTHING */
1.1       nbrk       64:        }
                     65:        return 0;
                     66: }