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/* aio.h
 *
 *  $Id: aio.h,v 1.2 2001-09-27 11:59:13 chris Exp $
 */
 
#ifndef __POSIX_ASYNCHRONOUS_IO_h
#define __POSIX_ASYNCHRONOUS_IO_h
 
#ifdef __cplusplus
extern "C" {
#endif
 
#include <sys/features.h>
 
#if defined(_POSIX_ASYNCHRONOUS_IO)
 
/*
 *  6.7.1 Data Definitions for Asynchronous Input and Output,
 *        P1003.1b-1993, p. 151
 */
 
#include <sys/types.h>
#include <signal.h>
#include <time.h>
#include <fcntl.h>
 
/*
 *  6.7.1.2 Manifest Constants, P1003.1b-1993, p. 153
 */
 
#define AIO_CANCELED    0 /* all requested operations have been canceled */
#define AIO_NOTCANCELED 1 /* some of the operations could not be canceled */
                          /*   since they are in progress */
#define AIO_ALLDONE     2 /* none of the requested operations could be */
                          /*   canceled since they are already complete */
 
/* lio_listio() options */
 
#define LIO_WAIT        0 /* calling process is to suspend until the */
                          /*   operation is complete */
#define LIO_NOWAIT      1 /* calling process is to continue execution while */
                          /*   the operation is performed and no notification */
                          /*   shall be given when the operation is completed */
#define LIO_READ        2 /* request a read() */
#define LIO_WRITE       3 /* request a write() */
#define LIO_NOP         4 /* no transfer is requested */
 
/*
 *  6.7.1.1 Asynchronous I/O Control Block, P1003.1b-1993, p. 151
 */
 
struct aiocb {
  int             aio_fildes;     /* File descriptor */
  off_t           aio_offset;     /* File offset */
  volatile void  *aio_buf;        /* Location of buffer */
  size_t          aio_nbytes;     /* Length of transfer */
  int             aio_reqprio;    /* Request priority offset */
  struct sigevent aio_sigevent;   /* Signal number and value */
  int             aoi_lio_opcode; /* Operation to be performed */
};
 
/*
 *  6.7.2 Asynchronous Read, P1003.1b-1993, p. 154
 */
 
int aio_read(
  struct aiocb  *aiocbp
);
 
/*
 *  6.7.3 Asynchronous Write, P1003.1b-1993, p. 155
 */
 
int aio_write(
  struct aiocb  *aiocbp
);
 
/*
 *  6.7.4 List Directed I/O, P1003.1b-1993, p. 158
 */
 
int lio_listio(
  int                    mode,
  struct aiocb  * const  list[],
  int                    nent,
  struct sigevent       *sig
);
 
/*
 *  6.7.5 Retrieve Error of Asynchronous I/O Operation, P1003.1b-1993, p. 161
 */
 
int aio_error(
  const struct aiocb  *aiocbp
);
 
/*
 *  6.7.6 Retrieve Return Status of Asynchronous I/O Operation,
 *        P1003.1b-1993, p. 162
 */
 
int aio_return(
  const struct aiocb  *aiocbp
);
 
/*
 *  6.7.7 Cancel Asynchronous I/O Operation, P1003.1b-1993, p. 163
 */
 
int aio_cancel(
  int            filedes,
  struct aiocb  *aiocbp
);
 
/*
 *  6.7.7 Wait for Asynchronous I/O Request, P1003.1b-1993, p. 164
 */
 
int aio_suspend(
  struct aiocb  * const   list[],
  int                     nent,
  const struct timespec  *timeout
);
 
#if defined(_POSIX_SYNCHRONIZED_IO)
 
/*
 *  6.7.9 Asynchronous File Synchronization, P1003.1b-1993, p. 166
 */
 
int aio_fsync(
  int            op,
  struct aiocb  *aiocbp
);
 
#endif /* _POSIX_SYNCHRONIZED_IO */
 
#endif /* _POSIX_ASYNCHRONOUS_IO */
 
#ifdef __cplusplus
}
#endif
 
#endif
/* end of include file */

Line No.	Rev	Author	Line
1	30	unneback	`/* aio.h`
2			`*`
3			`* $Id: aio.h,v 1.2 2001-09-27 11:59:13 chris Exp $`
4			`*/`
5
6			`#ifndef __POSIX_ASYNCHRONOUS_IO_h`
7			`#define __POSIX_ASYNCHRONOUS_IO_h`
8
9			`#ifdef __cplusplus`
10			`extern "C" {`
11			`#endif`
12
13			`#include <sys/features.h>`
14
15			`#if defined(_POSIX_ASYNCHRONOUS_IO)`
16
17			`/*`
18			`* 6.7.1 Data Definitions for Asynchronous Input and Output,`
19			`* P1003.1b-1993, p. 151`
20			`*/`
21
22			`#include <sys/types.h>`
23			`#include <signal.h>`
24			`#include <time.h>`
25			`#include <fcntl.h>`
26
27			`/*`
28			`* 6.7.1.2 Manifest Constants, P1003.1b-1993, p. 153`
29			`*/`
30
31			`#define AIO_CANCELED 0 /* all requested operations have been canceled */`
32			`#define AIO_NOTCANCELED 1 /* some of the operations could not be canceled */`
33			`/* since they are in progress */`
34			`#define AIO_ALLDONE 2 /* none of the requested operations could be */`
35			`/* canceled since they are already complete */`
36
37			`/* lio_listio() options */`
38
39			`#define LIO_WAIT 0 /* calling process is to suspend until the */`
40			`/* operation is complete */`
41			`#define LIO_NOWAIT 1 /* calling process is to continue execution while */`
42			`/* the operation is performed and no notification */`
43			`/* shall be given when the operation is completed */`
44			`#define LIO_READ 2 /* request a read() */`
45			`#define LIO_WRITE 3 /* request a write() */`
46			`#define LIO_NOP 4 /* no transfer is requested */`
47
48			`/*`
49			`* 6.7.1.1 Asynchronous I/O Control Block, P1003.1b-1993, p. 151`
50			`*/`
51
52			`struct aiocb {`
53			`int aio_fildes; /* File descriptor */`
54			`off_t aio_offset; /* File offset */`
55			`volatile void aio_buf; / Location of buffer */`
56			`size_t aio_nbytes; /* Length of transfer */`
57			`int aio_reqprio; /* Request priority offset */`
58			`struct sigevent aio_sigevent; /* Signal number and value */`
59			`int aoi_lio_opcode; /* Operation to be performed */`
60			`};`
61
62			`/*`
63			`* 6.7.2 Asynchronous Read, P1003.1b-1993, p. 154`
64			`*/`
65
66			`int aio_read(`
67			`struct aiocb *aiocbp`
68			`);`
69
70			`/*`
71			`* 6.7.3 Asynchronous Write, P1003.1b-1993, p. 155`
72			`*/`
73
74			`int aio_write(`
75			`struct aiocb *aiocbp`
76			`);`
77
78			`/*`
79			`* 6.7.4 List Directed I/O, P1003.1b-1993, p. 158`
80			`*/`
81
82			`int lio_listio(`
83			`int mode,`
84			`struct aiocb * const list[],`
85			`int nent,`
86			`struct sigevent *sig`
87			`);`
88
89			`/*`
90			`* 6.7.5 Retrieve Error of Asynchronous I/O Operation, P1003.1b-1993, p. 161`
91			`*/`
92
93			`int aio_error(`
94			`const struct aiocb *aiocbp`
95			`);`
96
97			`/*`
98			`* 6.7.6 Retrieve Return Status of Asynchronous I/O Operation,`
99			`* P1003.1b-1993, p. 162`
100			`*/`
101
102			`int aio_return(`
103			`const struct aiocb *aiocbp`
104			`);`
105
106			`/*`
107			`* 6.7.7 Cancel Asynchronous I/O Operation, P1003.1b-1993, p. 163`
108			`*/`
109
110			`int aio_cancel(`
111			`int filedes,`
112			`struct aiocb *aiocbp`
113			`);`
114
115			`/*`
116			`* 6.7.7 Wait for Asynchronous I/O Request, P1003.1b-1993, p. 164`
117			`*/`
118
119			`int aio_suspend(`
120			`struct aiocb * const list[],`
121			`int nent,`
122			`const struct timespec *timeout`
123			`);`
124
125			`#if defined(_POSIX_SYNCHRONIZED_IO)`
126
127			`/*`
128			`* 6.7.9 Asynchronous File Synchronization, P1003.1b-1993, p. 166`
129			`*/`
130
131			`int aio_fsync(`
132			`int op,`
133			`struct aiocb *aiocbp`
134			`);`
135
136			`#endif /* _POSIX_SYNCHRONIZED_IO */`
137
138			`#endif /* _POSIX_ASYNCHRONOUS_IO */`
139
140			`#ifdef __cplusplus`
141			`}`
142			`#endif`
143
144			`#endif`
145			`/* end of include file */`

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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [exec/] [posix/] [include/] [aio.h] - Blame information for rev 279