nuttx/libs/libc/aio/aio_error.c
Alin Jerpelea d6b50a1d3f libs: nxstyle fixes
nxstyle fixes to pass the CI checks

Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
2021-03-03 18:52:53 -08:00

101 lines
3.8 KiB
C

/****************************************************************************
* libs/libc/aio/aio_error.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <aio.h>
#include <assert.h>
#include <errno.h>
#ifdef CONFIG_FS_AIO
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* Configuration ************************************************************/
/****************************************************************************
* Private Types
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Public Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: aio_error
*
* Description:
* The aio_error() function returns the error status associated with the
* aiocb structure referenced by the aiocbp argument. The error status fo
* an asynchronous I/O operation is the errno value that would be set by
* the corresponding read(), write(), fdatasync(), or fsync() operation. If
* the operation has not yet completed, then the error status will be equal
* to EINPROGRESS.
*
* Input Parameters:
* aiocbp - A pointer to an instance of struct aiocb
*
* Returned Value:
* If the asynchronous I/O operation has completed successfully, then 0
* will be returned. If the asynchronous operation has completed
* unsuccessfully, then the error status, as described for read(),
* write(), fdatasync(), and fsync(), will be returned. If the
* asynchronous I/O operation has not yet completed, then EINPROGRESS will
* be returned.
*
* The aio_error() function may fail if:
*
* EINVAL - The aiocbp argument does not refer to an asynchronous
* operation whose return status has not yet been retrieved.
*
****************************************************************************/
int aio_error(FAR const struct aiocb *aiocbp)
{
DEBUGASSERT(aiocbp);
if (aiocbp->aio_result < 0)
{
return -aiocbp->aio_result;
}
return OK;
}
#endif /* CONFIG_FS_AIO */