src/DiskIO/AIO/aio_win32.h

   1 /*
   2  * $Id$
   3  *
   4  * AUTHOR: Guido Serassio <serassio@squid-cache.org>
   5  *
   6  * SQUID Web Proxy Cache          http://www.squid-cache.org/
   7  * ----------------------------------------------------------
   8  *
   9  *  Squid is the result of efforts by numerous individuals from
  10  *  the Internet community; see the CONTRIBUTORS file for full
  11  *  details.   Many organizations have provided support for Squid's
  12  *  development; see the SPONSORS file for full details.  Squid is
  13  *  Copyrighted (C) 2001 by the Regents of the University of
  14  *  California; see the COPYRIGHT file for full details.  Squid
  15  *  incorporates software developed and/or copyrighted by other
  16  *  sources; see the CREDITS file for full details.
  17  *
  18  *  This program is free software; you can redistribute it and/or modify
  19  *  it under the terms of the GNU General Public License as published by
  20  *  the Free Software Foundation; either version 2 of the License, or
  21  *  (at your option) any later version.
  22  *
  23  *  This program is distributed in the hope that it will be useful,
  24  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  25  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  26  *  GNU General Public License for more details.
  27  *
  28  *  You should have received a copy of the GNU General Public License
  29  *  along with this program; if not, write to the Free Software
  30  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
  31  *
  32  */
  33
  34 #ifndef __WIN32_AIO_H__
  35 #define __WIN32_AIO_H__
  36
  37 #include "config.h"
  38
  39 #if USE_DISKIO_AIO
  40
  41 #ifdef _SQUID_CYGWIN_
  42 #include "squid_windows.h"
  43 #endif
  44
  45 #ifndef off64_t
  46 typedef int64_t off64_t;
  47 #endif
  48
  49 #ifdef _SQUID_MSWIN_
  50
  51 union sigval {
  52     int sival_int; /* integer value */
  53     void *sival_ptr; /* pointer value */
  54 };
  55
  56 struct sigevent {
  57     int sigev_notify; /* notification mode */
  58     int sigev_signo; /* signal number */
  59     union sigval sigev_value; /* signal value */
  60 };
  61
  62 // #endif
  63
  64 struct aiocb64 {
  65     int aio_fildes; /* file descriptor */
  66     void *aio_buf; /* buffer location */
  67     size_t aio_nbytes; /* length of transfer */
  68     off64_t aio_offset; /* file offset */
  69     int aio_reqprio; /* request priority offset */
  70
  71     struct sigevent aio_sigevent; /* signal number and offset */
  72     int aio_lio_opcode; /* listio operation */
  73 };
  74
  75 struct aiocb {
  76     int aio_fildes; /* file descriptor */
  77     void *aio_buf; /* buffer location */
  78     size_t aio_nbytes; /* length of transfer */
  79 #if (_FILE_OFFSET_BITS == 64)
  80
  81     off64_t aio_offset; /* file offset */
  82 #else
  83
  84     off_t aio_offset; /* file offset */
  85 #endif
  86
  87     int aio_reqprio; /* request priority offset */
  88
  89     struct sigevent aio_sigevent; /* signal number and offset */
  90     int aio_lio_opcode; /* listio operation */
  91 };
  92
  93 int aio_read(struct aiocb *);
  94
  95 int aio_write(struct aiocb *);
  96
  97 ssize_t aio_return(struct aiocb *);
  98
  99 int aio_error(const struct aiocb *);
 100
 101 int aio_read64(struct aiocb64 *);
 102
 103 int aio_write64(struct aiocb64 *);
 104
 105 ssize_t aio_return64(struct aiocb64 *);
 106
 107 int aio_error64(const struct aiocb64 *);
 108 int aio_open(const char *, int);
 109 void aio_close(int);
 110
 111 #endif /* _SQUID_MSWIN_ */
 112 #endif /* USE_DISKIO_AIO */
 113 #endif /* __WIN32_AIO_H__ */