forked from Imagelibrary/rtems
91 lines
2.8 KiB
C
91 lines
2.8 KiB
C
/* SPDX-License-Identifier: BSD-2-Clause */
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/**
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* @file
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*
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* @ingroup POSIXAPI
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*
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* @brief Function queues I/O request described by buffer pointed by aiocb
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*/
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/*
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* Copyright 2010, Alin Rus <alin.codejunkie@gmail.com>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <aio.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <rtems/posix/aio_misc.h>
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#include <rtems/seterr.h>
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#include <stdlib.h>
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#include <limits.h>
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/*
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* aio_write
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*
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* Asynchronous write to a file
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*
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* Input parameters:
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* aiocbp - asynchronous I/O control block
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*
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* Output parameters:
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* -1 - request could not be enqueued
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* - FD not opened for write
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* - invalid aio_reqprio or aio_offset or
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* aio_nbytes
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* - not enough memory
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* 0 - otherwise
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*/
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int
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aio_write (struct aiocb *aiocbp)
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{
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rtems_aio_request *req;
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int mode;
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mode = fcntl (aiocbp->aio_fildes, F_GETFL);
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if (!(((mode & O_ACCMODE) == O_WRONLY) || ((mode & O_ACCMODE) == O_RDWR)))
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rtems_aio_set_errno_return_minus_one (EBADF, aiocbp);
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if (aiocbp->aio_reqprio < 0 || aiocbp->aio_reqprio > AIO_PRIO_DELTA_MAX)
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rtems_aio_set_errno_return_minus_one (EINVAL, aiocbp);
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if (aiocbp->aio_offset < 0)
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rtems_aio_set_errno_return_minus_one (EINVAL, aiocbp);
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req = malloc (sizeof (rtems_aio_request));
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if (req == NULL)
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rtems_aio_set_errno_return_minus_one (EAGAIN, aiocbp);
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req->aiocbp = aiocbp;
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req->aiocbp->aio_lio_opcode = LIO_WRITE;
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return rtems_aio_enqueue (req);
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}
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