[mpich-discuss] error class MPI_ERR_NO_SUCH_FILE thrown by MPI_File_delete

[Rob Latham]

On 04/05/2014 02:48 PM, Wei-keng Liao wrote:
> In MPI-2 standard has the sentence below for MPI_File_delete.
> "If the file does not exist, MPI_FILE_DELETE raises an error in the class MPI_ERR_NO_SUCH_FILE."

this is now ticket http://trac.mpich.org/projects/mpich/ticket/2075. I 
think I can fix this today.

==rob

>
> But in src/mpi/romio/adio/common/ad_delete.c, the return code of unlink() is not checked
> for this error (only MPI_ERR_IO class is thrown.) May I suggest to add a check, so the
> MPI_ERR_NO_SUCH_FILE class can reported.
>
>    19     err = unlink(filename);
>           if (err == ENOENT) {
>               *error_code = MPIO_Err_create_code(MPI_SUCCESS, MPIR_ERR_RECOVERABLE,
>                                                  myname, __LINE__, MPI_ERR_NO_SUCH_FILE, "**io",
>                                                  "**io %s", strerror(errno));
>               return;
>           }
>           else if (err == -1) {
>           ...

-- 
Rob Latham
Mathematics and Computer Science Division
Argonne National Lab, IL USA