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