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openmpi/ompi/mca/fs/plfs/fs_plfs_file_close.c
2015-06-23 20:59:57 -07:00

76 строки
2.1 KiB
C

/*
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2011 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
* University of Stuttgart. All rights reserved.
* Copyright (c) 2004-2005 The Regents of the University of California.
* All rights reserved.
* Copyright (c) 2008-2014 University of Houston. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include "fs_plfs.h"
#include <fcntl.h>
#include <unistd.h>
#include "mpi.h"
#include "ompi/constants.h"
#include "ompi/mca/fs/fs.h"
/*
* file_close_plfs
*
* Function: - closes a new file
* Accepts: - file handle
* Returns: - Success if file closed
*/
int
mca_fs_plfs_file_close (mca_io_ompio_file_t *fh)
{
int flags;
plfs_error_t plfs_ret = PLFS_SUCCESS;
int amode;
char wpath[1024];
fh->f_comm->c_coll.coll_barrier (fh->f_comm,
fh->f_comm->c_coll.coll_barrier_module);
getcwd( wpath, sizeof(wpath) );
sprintf( wpath,"%s/%s",wpath,fh->f_filename );
if(-1 == access(fh->f_filename, F_OK)) {
return OMPI_ERROR; // file doesn't exist
}
amode = 0;
if (fh->f_amode & MPI_MODE_CREATE)
amode = amode | O_CREAT;
if (fh->f_amode & MPI_MODE_RDONLY)
amode = amode | O_RDONLY;
if (fh->f_amode & MPI_MODE_WRONLY)
amode = amode | O_WRONLY;
if (fh->f_amode & MPI_MODE_RDWR)
amode = amode | O_RDWR;
if (fh->f_amode & MPI_MODE_EXCL) {
return OMPI_ERROR;
}
plfs_ret = plfs_close(fh->f_fs_ptr, 0, 0, amode ,NULL, &flags);
if (PLFS_SUCCESS != plfs_ret) {
opal_output(0, "fs_plfs_file_close: Error in plfs_close:\n%s\n", strplfserr(plfs_ret));
return OMPI_ERROR;
}
return OMPI_SUCCESS;
}