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>
49 строки
1.6 KiB
C
49 строки
1.6 KiB
C
/*
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* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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* Copyright (c) 2004-2005 The University of Tennessee and The University
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* of Tennessee Research Foundation. All rights
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* reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* Copyright (c) 2013 University of Houston. All rights reserved.
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* Copyright (c) 2018 Research Organization for Information Science
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* and Technology (RIST). All rights reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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#include "ompi_config.h"
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#include "sharedfp_individual.h"
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#include "mpi.h"
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#include "ompi/constants.h"
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#include "ompi/mca/sharedfp/sharedfp.h"
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static int seek_counter=0;
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int mca_sharedfp_individual_seek (ompio_file_t *fh,
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OMPI_MPI_OFFSET_TYPE offset, int whence)
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{
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if ( 0 == seek_counter &&
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0 == offset &&
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MPI_SEEK_SET == whence ) {
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/* This is occuring when setting the default file view. THat is ok.
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** The component doesn't support however further seek operations.
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*/
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seek_counter++;
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return OMPI_SUCCESS;
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}
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opal_output(0,"mca_sharedfp_individual_seek: NOT IMPLEMENTED\n");
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return OMPI_ERROR;
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}
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