posix/include/aio.h

   1 /* $Id: aio.h,v 1.4 2002/10/29 04:45:06 rex Exp $
   2  */
   3 /*
   4  * aio.h
   5  *
   6  * asynchronous input and output (REALTIME). Conforming to the Single UNIX(r)
   7  * Specification Version 2, System Interface & Headers Issue 5
   8  *
   9  * This file is part of the ReactOS Operating System.
  10  *
  11  * Contributors:
  12  *  Created by KJK::Hyperion <noog@libero.it>
  13  *
  14  *  THIS SOFTWARE IS NOT COPYRIGHTED
  15  *
  16  *  This source code is offered for use in the public domain. You may
  17  *  use, modify or distribute it freely.
  18  *
  19  *  This code is distributed in the hope that it will be useful but
  20  *  WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
  21  *  DISCLAMED. This includes but is not limited to warranties of
  22  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  23  *
  24  */
  25 #ifndef __AIO_H_INCLUDED__
  26 #define __AIO_H_INCLUDED__
  27
  28 /* INCLUDES */
  29 #include <fcntl.h>
  30 #include <signal.h>
  31 #include <sys/types.h>
  32 #include <time.h>
  33
  34 /* OBJECTS */
  35
  36 /* TYPES */
  37 typedef struct _tag_aiocb
  38 {
  39  int             aio_fildes;     /* file descriptor */
  40  off_t           aio_offset;     /* file offset */
  41  volatile void*  aio_buf;        /* location of buffer */
  42  size_t          aio_nbytes;     /* length of transfer */
  43  int             aio_reqprio;    /* request priority offset */
  44  struct sigevent aio_sigevent;   /* signal number and value */
  45  int             aio_lio_opcode; /* operation to be performed */
  46 } aiocb;
  47
  48 /* CONSTANTS */
  49 #define AIO_CANCELED    0
  50 #define AIO_NOTCANCELED 1
  51 #define AIO_ALLDONE     2
  52
  53 #define LIO_WAIT        0
  54 #define LIO_NOWAIT      1
  55 #define LIO_READ        2
  56 #define LIO_WRITE       3
  57 #define LIO_NOP         4
  58
  59 /* PROTOTYPES */
  60 int      aio_cancel(int, struct aiocb *);
  61 int      aio_error(const struct aiocb *);
  62 int      aio_fsync(int, struct aiocb *);
  63 int      aio_read(struct aiocb *);
  64 ssize_t  aio_return(struct aiocb *);
  65 int      aio_suspend(const struct aiocb *const[], int, const struct timespec *);
  66 int      aio_write(struct aiocb *);
  67 int      lio_listio(int, struct aiocb *const[], int, struct sigevent *);
  68
  69 /* MACROS */
  70
  71 #endif /* __AIO_H_INCLUDED__ */
  72
  73 /* EOF */
  74