smart-green-house/rtt-uart-nb/rt-thread/components/libc/aio/posix_aio.h

44 lines
1.1 KiB
C

/*
* Copyright (c) 2006-2018, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2017/12/30 Bernard The first version.
*/
#ifndef POSIX_AIO_H__
#define POSIX_AIO_H__
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 aio_lio_opcode; /* Operation to be performed. */
int aio_result;
struct rt_work aio_work;
};
int aio_cancel(int fd, struct aiocb *cb);
int aio_error (const struct aiocb *cb);
int aio_fsync(int op, struct aiocb *cb);
int aio_read(struct aiocb *cb);
ssize_t aio_return(struct aiocb *cb);
int aio_suspend(const struct aiocb *const list[], int nent,
const struct timespec *timeout);
int aio_write(struct aiocb *cb);
int lio_listio(int mode, struct aiocb * const list[], int nent,
struct sigevent *sig);
#endif