bc0f60dfd9
this commit revamps the internal operations of the sharedfp components. Specifically, it is focused around removing the second file_open operation for shared file pointers. This makes the code more efficient. Because of that, there is no necessity anymore for the sharedfp_lazy_open mca parameter. Signed-off-by: Edgar Gabriel <egabriel@central.uh.edu>
47 строки
1.6 KiB
C
47 строки
1.6 KiB
C
/*
|
|
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
|
|
* University Research and Technology
|
|
* Corporation. All rights reserved.
|
|
* Copyright (c) 2004-2005 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) 2013-2018 University of Houston. All rights reserved.
|
|
* Copyright (c) 2018 Research Organization for Information Science
|
|
* and Technology (RIST). All rights reserved.
|
|
* $COPYRIGHT$
|
|
*
|
|
* Additional copyrights may follow
|
|
*
|
|
* $HEADER$
|
|
*/
|
|
|
|
|
|
#include "ompi_config.h"
|
|
#include "sharedfp_sm.h"
|
|
|
|
#include "mpi.h"
|
|
#include "ompi/constants.h"
|
|
#include "ompi/mca/sharedfp/sharedfp.h"
|
|
#include "ompi/mca/sharedfp/base/base.h"
|
|
|
|
int
|
|
mca_sharedfp_sm_get_position(ompio_file_t *fh,
|
|
OMPI_MPI_OFFSET_TYPE * offset)
|
|
{
|
|
if(fh->f_sharedfp_data==NULL){
|
|
opal_output(ompi_sharedfp_base_framework.framework_output,
|
|
"sharedfp_sm_write - module not initialized\n");
|
|
return OMPI_ERROR;
|
|
}
|
|
|
|
/*Requesting the offset to write 0 bytes,
|
|
*returns the current offset w/o updating it
|
|
*/
|
|
|
|
return mca_sharedfp_sm_request_position(fh,0,offset);
|
|
}
|