Prex Home / Browse Source - Prex Version: 0.9.0

root/usr/lib/posix/gen/__posix_call.c

/* [<][>][^][v][top][bottom][index][help] */

DEFINITIONS

This source file includes following definitions.
  1. __posix_call

   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 <sys/prex.h>
  31 #include <ipc/ipc.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 error;
  46 
  47         if (obj == 0) {
  48                 errno = ENOSYS;
  49                 return -1;
  50         }
  51 
  52         do {
  53                 error = msg_send(obj, msg, size);
  54         } while (error == EINTR && restart);
  55 
  56         if (error) {
  57                 errno = (error == 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         } else {
  63                 /* DO NOTHING */
  64         }
  65         return 0;
  66 }

/* [<][>][^][v][top][bottom][index][help] */