942f9e8f8d
comment in ompi_comm_invalid() in source:/trunk/ompi/communicator/communicator.h. Short version: - ompi_comm_invalid() returns TRUE for MPI_COMM_NULL - therefore MPI_COMM_C2F needs to explicitly check for MPI_COMM_NULL (because it uses ompi_comm_invalid()) - make ~20 MPI functions only call ompi_comm_invalid() instead of calling ompi_comm_invalid() *and* checking for MPI_COMM_NULL (~40 MPI functions already only called ompi_comm_invalid() -- we should be consistent) - similar issue for ompi_win_invalid(), so I added a cross-referencing comment in win.h and fixed MPI_WIN_SET_NAME to only call ompi_win_invalid() (and not check for MPI_WIN_NULL) This commit was SVN r9970.
71 строка
2.1 KiB
C
71 строка
2.1 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) 2006 Cisco Systems, Inc. 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 <string.h>
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#include "ompi/mpi/c/bindings.h"
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#include "opal/util/strncpy.h"
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#include "ompi/totalview.h"
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#include "opal/threads/mutex.h"
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#if OMPI_HAVE_WEAK_SYMBOLS && OMPI_PROFILING_DEFINES
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#pragma weak MPI_Comm_get_name = PMPI_Comm_get_name
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#endif
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#if OMPI_PROFILING_DEFINES
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#include "ompi/mpi/c/profile/defines.h"
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#endif
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static const char FUNC_NAME[] = "MPI_Comm_get_name";
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int MPI_Comm_get_name(MPI_Comm comm, char *name, int *length)
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{
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if ( MPI_PARAM_CHECK ) {
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OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
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if ( ompi_comm_invalid ( comm ) )
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return OMPI_ERRHANDLER_INVOKE ( MPI_COMM_WORLD, MPI_ERR_COMM,
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FUNC_NAME);
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if ( NULL == name || NULL == length )
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return OMPI_ERRHANDLER_INVOKE ( comm, MPI_ERR_ARG,
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FUNC_NAME);
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}
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#ifdef USE_MUTEX_FOR_COMMS
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OPAL_THREAD_LOCK(&(comm->c_lock));
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#endif
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if ( comm->c_flags & OMPI_COMM_NAMEISSET ) {
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strncpy ( name, comm->c_name, MPI_MAX_OBJECT_NAME );
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*length = strlen ( comm->c_name );
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}
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else {
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memset ( name, 0, MPI_MAX_OBJECT_NAME );
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*length = 0;
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}
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#ifdef USE_MUTEX_FOR_COMMS
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OPAL_THREAD_UNLOCK(&(comm->c_lock));
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#endif
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return MPI_SUCCESS;
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}
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