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posix: Fixed header comment of aio_read.c

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Corrected the header comment of aio_read.c

Fixes #5015
This commit is contained in:
Alessandro Nardin
2024-05-23 19:10:32 +00:00
committed by Gedare Bloom
parent 80c94eeff4
commit 3225f69db6
1 changed files with 30 additions and 32 deletions
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62
cpukit/posix/src/aio_read.c
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@@ -2,10 +2,9 @@
/**
* @file
*
* @ingroup POSIXAPI
*
*
* @brief Asynchronously reads Data from a File
* @ingroup POSIX_AIO
*/
/*
@@ -46,45 +45,44 @@
#include <stdlib.h>
#include <limits.h>
/*
* aio_read
*
* Asynchronous write to a file
*
* Input parameters:
* aiocbp - asynchronous I/O control block
*
* Output parameters:
* -1 - request could not pe enqueued
* - FD not opened for write
* - invalid aio_reqprio or aio_offset or
* aio_nbytes
* - not enough memory
* 0 - otherwise
*/
int
aio_read (struct aiocb *aiocbp)
/**
* @brief Asynchronous read from a file
*
* 6.7.2 Asynchronous Read, P1003.1b-1993, p. 154
*
* @param[in] aiocbp is a pointer to the asynchronous I/O control block
*
* @retval 0 The request has been successfuly enqueued.
* @retval -1 The request has not been enqueued. The possible errors are:
* - FD not opened for read
* - invalid aio_reqprio or aio_offset or aio_nbytes
* - not enough memory
* - the starting position of the file is past the maximum offset
* for this file.
*
*/
int aio_read(struct aiocb *aiocbp)
{
rtems_aio_request *req;
int mode;
mode = fcntl (aiocbp->aio_fildes, F_GETFL);
if (!(((mode & O_ACCMODE) == O_RDONLY) || ((mode & O_ACCMODE) == O_RDWR)))
rtems_aio_set_errno_return_minus_one (EBADF, aiocbp);
mode = fcntl(aiocbp->aio_fildes, F_GETFL);
if ( !((( mode&O_ACCMODE ) == O_RDONLY ) || (( mode&O_ACCMODE ) == O_RDWR )))
rtems_aio_set_errno_return_minus_one(EBADF, aiocbp);
if (aiocbp->aio_reqprio < 0 || aiocbp->aio_reqprio > AIO_PRIO_DELTA_MAX)
rtems_aio_set_errno_return_minus_one (EINVAL, aiocbp);
if ( aiocbp->aio_reqprio < 0 || aiocbp->aio_reqprio > AIO_PRIO_DELTA_MAX )
rtems_aio_set_errno_return_minus_one(EINVAL, aiocbp);
if (aiocbp->aio_offset < 0)
rtems_aio_set_errno_return_minus_one (EINVAL, aiocbp);
if ( aiocbp->aio_offset < 0 )
rtems_aio_set_errno_return_minus_one(EINVAL, aiocbp);
req = malloc (sizeof (rtems_aio_request));
if (req == NULL)
rtems_aio_set_errno_return_minus_one (EAGAIN, aiocbp);
req = malloc(sizeof(rtems_aio_request));
if ( req == NULL )
rtems_aio_set_errno_return_minus_one(EAGAIN, aiocbp);
req->aiocbp = aiocbp;
req->aiocbp->aio_lio_opcode = LIO_READ;
return rtems_aio_enqueue (req);
return rtems_aio_enqueue(req);
}