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libs/libc/aio: fix aio_read compatible bug

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1. make the aio_read implementation can pass the
ltp/open_posix_testsuite/aio_read testcases
2. the modification are referred to https://pubs.opengroup.org/onlinepubs/9699919799/functions/aio_read.html

Signed-off-by: guoshichao <guoshichao@xiaomi.com>
This commit is contained in:
guoshichao 2023-06-09 15:48:46 +08:00 committed by Alan Carvalho de Assis
parent f48a92810b
commit d33f90b78c
1 changed files with 28 additions and 0 deletions
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28
fs/aio/aio_read.c
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@ -219,6 +219,34 @@ int aio_read(FAR struct aiocb *aiocbp)
DEBUGASSERT(aiocbp);
if (aiocbp->aio_reqprio < 0)
{
set_errno(EINVAL);
return ERROR;
}
if (aiocbp->aio_fildes < 0)
{
/* the EBADF should be collected by aio_error(), we need return OK at
* here
*/
aiocbp->aio_result = -EBADF;
return OK;
}
/* for aio_read, the aio_offset should be large or equal than 0 */
if (aiocbp->aio_offset < 0)
{
/* the EINVAL should be collected by aio_error(), we need to return OK
* here
*/
aiocbp->aio_result = -EINVAL;
return OK;
}
/* The result -EINPROGRESS means that the transfer has not yet completed */
sigwork_init(&aiocbp->aio_sigwork);