1 /*
   2  * Copyright (c) 2006 Damien Miller.  All rights reserved.
   3  * Copyright (c) 1995,1999 Theo de Raadt.  All rights reserved.
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  25  */
  26 
  27 #ifndef _ATOMICIO_H
  28 #define _ATOMICIO_H
  29 
  30 /*      $OpenBSD: atomicio.h,v 1.4 2001/06/26 06:32:46 itojun Exp $     */
  31 
  32 #pragma ident   "%Z%%M% %I%     %E% SMI"
  33 
  34 #ifdef __cplusplus
  35 extern "C" {
  36 #endif
  37 
  38 /*
  39  * Ensure all of data on socket comes through. f==read || f==write
  40  */
  41 ssize_t atomicio(ssize_t (*)(), int, void *, size_t);
  42 
  43 #define vwrite (ssize_t (*)(int, void *, size_t))write
  44 
  45 /*
  46  * ensure all of data on socket comes through. f==readv || f==writev
  47  */
  48 size_t  atomiciov(ssize_t (*)(int, const struct iovec *, int),
  49     int, const struct iovec *, int);
  50 
  51 #ifdef __cplusplus
  52 }
  53 #endif
  54 
  55 #endif /* _ATOMICIO_H */