126a68dc9a
allocation logic is completely done outside the data-type engine (in the PML) there is no need for any special case inside the data-type engine. There is less arguments for the ompi_convertor_pack and ompi_convertor_unpack as well (the last field free_after is not required anymore as there is no memory allocated in the engine itself). This change affect all components using datatypes. I test most of them, but it might happens that I miss some ... If it's the case please let me know (don't shoot the pianist!!). This commit was SVN r12331.
84 строки
3.0 KiB
C
84 строки
3.0 KiB
C
/*
|
|
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
|
|
* University Research and Technology
|
|
* Corporation. All rights reserved.
|
|
* Copyright (c) 2004-2005 The University of Tennessee and The University
|
|
* of Tennessee Research Foundation. All rights
|
|
* reserved.
|
|
* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
|
|
* University of Stuttgart. All rights reserved.
|
|
* Copyright (c) 2004-2005 The Regents of the University of California.
|
|
* All rights reserved.
|
|
* $COPYRIGHT$
|
|
*
|
|
* Additional copyrights may follow
|
|
*
|
|
* $HEADER$
|
|
*/
|
|
#include "ompi_config.h"
|
|
|
|
#include "ompi/mpi/c/bindings.h"
|
|
#include "ompi/datatype/datatype.h"
|
|
#include "ompi/datatype/convertor.h"
|
|
|
|
#if OMPI_HAVE_WEAK_SYMBOLS && OMPI_PROFILING_DEFINES
|
|
#pragma weak MPI_Unpack_external = PMPI_Unpack_external
|
|
#endif
|
|
|
|
#if OMPI_PROFILING_DEFINES
|
|
#include "ompi/mpi/c/profile/defines.h"
|
|
#endif
|
|
|
|
static const char FUNC_NAME[] = "MPI_Unpack_external ";
|
|
|
|
|
|
int MPI_Unpack_external (char *datarep, void *inbuf, MPI_Aint insize,
|
|
MPI_Aint *position, void *outbuf, int outcount,
|
|
MPI_Datatype datatype)
|
|
{
|
|
int rc;
|
|
ompi_convertor_t local_convertor;
|
|
struct iovec outvec;
|
|
unsigned int iov_count;
|
|
size_t size;
|
|
|
|
if (MPI_PARAM_CHECK) {
|
|
OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
|
|
if ((NULL == inbuf) || (NULL == position)) { /* outbuf can be MPI_BOTTOM */
|
|
return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_ARG, FUNC_NAME);
|
|
} else if (outcount < 0) {
|
|
return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_COUNT, FUNC_NAME);
|
|
} else if (MPI_DATATYPE_NULL == datatype) {
|
|
return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_TYPE, FUNC_NAME);
|
|
}
|
|
}
|
|
|
|
OBJ_CONSTRUCT(&local_convertor, ompi_convertor_t);
|
|
|
|
/* the resulting convertor will be set to the position ZERO */
|
|
ompi_convertor_copy_and_prepare_for_recv( ompi_mpi_external32_convertor,
|
|
datatype, outcount, outbuf, 0, &local_convertor );
|
|
|
|
/* Check for truncation */
|
|
ompi_convertor_get_packed_size( &local_convertor, &size );
|
|
if( (*position + size) > (unsigned int)insize ) {
|
|
OBJ_DESTRUCT( &local_convertor );
|
|
return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_TRUNCATE, FUNC_NAME);
|
|
}
|
|
|
|
/* Prepare the iovec with all informations */
|
|
outvec.iov_base = (char*) inbuf + (*position);
|
|
outvec.iov_len = size;
|
|
|
|
/* Do the actual unpacking */
|
|
iov_count = 1;
|
|
rc = ompi_convertor_unpack( &local_convertor, &outvec, &iov_count, &size );
|
|
*position += size;
|
|
OBJ_DESTRUCT( &local_convertor );
|
|
|
|
/* All done. Note that the convertor returns 1 upon success, not
|
|
OMPI_SUCCESS. */
|
|
OMPI_ERRHANDLER_RETURN((rc == 1) ? OMPI_SUCCESS : OMPI_ERROR,
|
|
MPI_COMM_WORLD, MPI_ERR_UNKNOWN, FUNC_NAME);
|
|
}
|