include/sys/asynch.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * Copyright (c) 1991 by Sun Microsystems, Inc.
  24  */
  25
  26 #ifndef _SYS_ASYNCH_H
  27 #define _SYS_ASYNCH_H
  28
  29 #pragma ident   "%Z%%M% %I%     %E% SMI"
  30
  31 #include <sys/feature_tests.h>
  32 #include <sys/types.h>
  33 #include <sys/aio.h>
  34
  35 #ifdef  __cplusplus
  36 extern "C" {
  37 #endif
  38
  39 #define AIO_INPROGRESS  -2      /* values not set by the system */
  40
  41 /* large file compilation environment setup */
  42 #if !defined(_LP64) && _FILE_OFFSET_BITS == 64
  43 #ifdef __PRAGMA_REDEFINE_EXTNAME
  44 #pragma redefine_extname        aioread         aioread64
  45 #pragma redefine_extname        aiowrite        aiowrite64
  46 #else
  47 #define aioread                 aioread64
  48 #define aiowrite                aiowrite64
  49 #endif
  50 #endif /* _FILE_OFFSET_BITS */
  51
  52 #if defined(_LP64) && defined(_LARGEFILE64_SOURCE)
  53 #ifdef __PRAGMA_REDEFINE_EXTNAME
  54 #pragma redefine_extname        aioread64       aioread
  55 #pragma redefine_extname        aiowrite64      aiowrite
  56 #else
  57 #define aioread64       aioread
  58 #define aiowrite64      aiowrite
  59 #endif
  60 #endif  /* _LP64 && _LARGEFILE64_SOURCE */
  61 extern int aioread(int, caddr_t, int, off_t, int, aio_result_t *);
  62 extern int aiowrite(int, caddr_t, int, off_t, int, aio_result_t *);
  63 extern int aiocancel(aio_result_t *);
  64 extern aio_result_t *aiowait(struct timeval *);
  65
  66 /* transitional large file interfaces */
  67 #if     defined(_LARGEFILE64_SOURCE) && !((_FILE_OFFSET_BITS == 64) && \
  68             !defined(__PRAGMA_REDEFINE_EXTNAME))
  69 extern int aioread64(int, caddr_t, int, off64_t, int, aio_result_t *);
  70 extern int aiowrite64(int, caddr_t, int, off64_t, int, aio_result_t *);
  71 #endif  /* _LARGEFILE64_SOURCE... */
  72
  73 #define MAXASYNCHIO 200         /* maxi.number of outstanding i/o's */
  74
  75 #ifdef  __cplusplus
  76 }
  77 #endif
  78
  79 #endif /* _SYS_ASYNCH_H */