52 строки
1.5 KiB
C
52 строки
1.5 KiB
C
/*
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* $HEADER$
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*/
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#include "ompi_config.h"
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#include <stdio.h>
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#include "mpi.h"
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#include "mpi/c/bindings.h"
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#include "class/ompi_object.h"
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#include "errhandler/errhandler.h"
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#include "communicator/communicator.h"
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#include "datatype/datatype.h"
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#if OMPI_HAVE_WEAK_SYMBOLS && OMPI_PROFILING_DEFINES
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#pragma weak MPI_Pack_size = PMPI_Pack_size
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#endif
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#if OMPI_PROFILING_DEFINES
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#include "mpi/c/profile/defines.h"
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#endif
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static const char FUNC_NAME[] = "MPI_Pack_size";
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int MPI_Pack_size(int incount, MPI_Datatype datatype, MPI_Comm comm,
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int *size)
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{
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int ret;
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ompi_convertor_t *local_convertor;
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unsigned int length;
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if (MPI_PARAM_CHECK) {
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OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
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if (MPI_COMM_NULL == 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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} else if (NULL == size) {
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return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ARG, FUNC_NAME);
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} else if (MPI_DATATYPE_NULL == datatype) {
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return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_TYPE, FUNC_NAME);
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}
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}
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local_convertor = OBJ_NEW(ompi_convertor_t);
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ompi_convertor_init_for_send(local_convertor, 0, datatype, incount,
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NULL, 0, NULL /* never allocate memory */);
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ret = ompi_convertor_get_packed_size(local_convertor, &length);
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*size = (int)length;
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OBJ_RELEASE(local_convertor);
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OMPI_ERRHANDLER_RETURN(ret, comm, MPI_ERR_UNKNOWN, FUNC_NAME);
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}
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