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libs/libc/aio: fix aio_write compatible bug 

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

Signed-off-by: guoshichao <guoshichao@xiaomi.com>
This commit is contained in:
guoshichao 2023-06-09 16:04:29 +08:00 committed by Xiang Xiao
parent 7d13f5eb78
commit dc69b108b8
1 changed files with 34 additions and 0 deletions
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34
fs/aio/aio_write.c
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@ -249,6 +249,40 @@ int aio_write(FAR struct aiocb *aiocbp)
DEBUGASSERT(aiocbp);
if (aiocbp->aio_reqprio < 0)
{
set_errno(EINVAL);
return ERROR;
}
if (aiocbp->aio_offset < 0)
{
aiocbp->aio_result = -EINVAL;
return OK;
}
if (aiocbp->aio_fildes < 0)
{
/* for EBADF, the aio_write do not return error directly, but using
* aio_error to return this error code
*/
aiocbp->aio_result = -EBADF;
return OK;
}
/* the aio_fildes that transferred in may be opened with O_RDONLY, for this
* case, we need to return OK directly, and using the aio_error to collect
* the EBADF error code
*/
int flags = fcntl(aiocbp->aio_fildes, F_GETFL);
if (!(flags & O_WRONLY))
{
aiocbp->aio_result = -EBADF;
return OK;
}
/* The result -EINPROGRESS means that the transfer has not yet completed */
sigwork_init(&aiocbp->aio_sigwork);