src/DiskIO/AIO/aio_win32.h

   1 /*
   2  * Copyright (C) 1996-2015 The Squid Software Foundation and contributors
   3  *
   4  * Squid software is distributed under GPLv2+ license and includes
   5  * contributions from numerous individuals and organizations.
   6  * Please see the COPYING and CONTRIBUTORS files for details.
   7  */
   8
   9 #ifndef __WIN32_AIO_H__
  10 #define __WIN32_AIO_H__
  11
  12 #if USE_DISKIO_AIO
  13
  14 #ifndef off64_t
  15 typedef int64_t off64_t;
  16 #endif
  17
  18 #if _SQUID_WINDOWS_
  19
  20 union sigval {
  21     int sival_int; /* integer value */
  22     void *sival_ptr; /* pointer value */
  23 };
  24
  25 struct sigevent {
  26     int sigev_notify; /* notification mode */
  27     int sigev_signo; /* signal number */
  28     union sigval sigev_value; /* signal value */
  29 };
  30
  31 // #endif
  32
  33 struct aiocb64 {
  34     int aio_fildes; /* file descriptor */
  35     void *aio_buf; /* buffer location */
  36     size_t aio_nbytes; /* length of transfer */
  37     off64_t aio_offset; /* file offset */
  38     int aio_reqprio; /* request priority offset */
  39
  40     struct sigevent aio_sigevent; /* signal number and offset */
  41     int aio_lio_opcode; /* listio operation */
  42 };
  43
  44 struct aiocb {
  45     int aio_fildes; /* file descriptor */
  46     void *aio_buf; /* buffer location */
  47     size_t aio_nbytes; /* length of transfer */
  48 #if (_FILE_OFFSET_BITS == 64)
  49
  50     off64_t aio_offset; /* file offset */
  51 #else
  52
  53     off_t aio_offset; /* file offset */
  54 #endif
  55
  56     int aio_reqprio; /* request priority offset */
  57
  58     struct sigevent aio_sigevent; /* signal number and offset */
  59     int aio_lio_opcode; /* listio operation */
  60 };
  61
  62 int aio_read(struct aiocb *);
  63
  64 int aio_write(struct aiocb *);
  65
  66 ssize_t aio_return(struct aiocb *);
  67
  68 int aio_error(const struct aiocb *);
  69
  70 int aio_read64(struct aiocb64 *);
  71
  72 int aio_write64(struct aiocb64 *);
  73
  74 ssize_t aio_return64(struct aiocb64 *);
  75
  76 int aio_error64(const struct aiocb64 *);
  77 int aio_open(const char *, int);
  78 void aio_close(int);
  79
  80 #endif /* _SQUID_WINDOWS_ */
  81 #endif /* USE_DISKIO_AIO */
  82 #endif /* __WIN32_AIO_H__ */
  83