65 строки
1.7 KiB
C
65 строки
1.7 KiB
C
/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil ; -*- */
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/*
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*
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* Copyright (C) 1997 University of Chicago.
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* See COPYRIGHT notice in top-level directory.
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*/
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#include "mpioimpl.h"
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#ifdef HAVE_WEAK_SYMBOLS
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#if defined(HAVE_PRAGMA_WEAK)
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#pragma weak MPI_File_get_group = PMPI_File_get_group
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#elif defined(HAVE_PRAGMA_HP_SEC_DEF)
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#pragma _HP_SECONDARY_DEF PMPI_File_get_group MPI_File_get_group
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#elif defined(HAVE_PRAGMA_CRI_DUP)
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#pragma _CRI duplicate MPI_File_get_group as PMPI_File_get_group
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/* end of weak pragmas */
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#elif defined(HAVE_WEAK_ATTRIBUTE)
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int MPI_File_get_group(MPI_File fh, MPI_Group *group) __attribute__((weak,alias("PMPI_File_get_group")));
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#endif
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/* Include mapping from MPI->PMPI */
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#define MPIO_BUILD_PROFILING
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#include "mpioprof.h"
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#endif
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/*@
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MPI_File_get_group - Returns the group of processes that
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opened the file
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Input Parameters:
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. fh - file handle (handle)
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Output Parameters:
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. group - group that opened the file (handle)
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.N fortran
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@*/
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int MPI_File_get_group(MPI_File fh, MPI_Group *group)
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{
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int error_code;
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ADIO_File adio_fh;
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static char myname[] = "MPI_FILE_GET_GROUP";
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MPIU_THREAD_CS_ENTER(ALLFUNC,);
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adio_fh = MPIO_File_resolve(fh);
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/* --BEGIN ERROR HANDLING-- */
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MPIO_CHECK_FILE_HANDLE(adio_fh, myname, error_code);
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/* --END ERROR HANDLING-- */
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/* note: this will return the group of processes that called open, but
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* with deferred open this might not be the group of processes that
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* actually opened the file from the file system's perspective
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*/
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error_code = MPI_Comm_group(adio_fh->comm, group);
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fn_exit:
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MPIU_THREAD_CS_EXIT(ALLFUNC,);
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return error_code;
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}
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