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// -*- c++ -*-
//
// Copyright (c) 2006 Los Alamos National Security, LLC. All rights
// reserved.
// Copyright (c) 2007-2009 Cisco Systems, Inc. All rights reserved.
// $COPYRIGHT$
//
// Additional copyrights may follow
//
// $HEADER$
//
// Do not include ompi_config.h before mpi.h because it causes
// malloc/free problems due to setting OMPI_BUILDING to 1
#include "mpi.h"
#include "ompi/constants.h"
#include "ompi/mpi/cxx/mpicxx.h"
#include "opal/class/opal_list.h"
#include "ompi/file/file.h"
#include "ompi/errhandler/errhandler.h"
#include "ompi/runtime/mpiruntime.h"
void
MPI::File::Close()
{
(void) MPI_File_close(&mpi_file);
}
MPI::Errhandler
MPI::File::Create_errhandler(MPI::File::Errhandler_function* function)
{
MPI_Errhandler c_errhandler =
ompi_errhandler_create(OMPI_ERRHANDLER_TYPE_FILE,
(ompi_errhandler_generic_handler_fn_t*) function,
OMPI_ERRHANDLER_LANG_CXX);
c_errhandler->eh_cxx_dispatch_fn =
(ompi_errhandler_cxx_dispatch_fn_t*)
ompi_mpi_cxx_file_errhandler_invoke;
return c_errhandler;
}
//
// Infrastructure for MPI_REGISTER_DATAREP
//
// Similar to what we have to do in the F77 bindings: call the C
// MPI_Register_datarep function with "intercept" callback functions
// that conform to the C bindings. In these intercepts, convert the
// arguments to C++ calling convertions, and then invoke the actual
// C++ callbacks.
// Data structure passed to the intercepts (see below). It is an OPAL
// list_item_t so that we can clean this memory up during
// MPI_FINALIZE.
typedef struct intercept_extra_state {
opal_list_item_t base;
MPI::Datarep_conversion_function *read_fn_cxx;
MPI::Datarep_conversion_function *write_fn_cxx;
MPI::Datarep_extent_function *extent_fn_cxx;
void *extra_state_cxx;
} intercept_extra_state_t;
static void intercept_extra_state_constructor(intercept_extra_state_t *obj)
{
obj->read_fn_cxx = NULL;
obj->write_fn_cxx = NULL;
obj->extent_fn_cxx = NULL;
obj->extra_state_cxx = NULL;
}
OBJ_CLASS_DECLARATION(intercept_extra_state_t);
OBJ_CLASS_INSTANCE(intercept_extra_state_t,
opal_list_item_t,
intercept_extra_state_constructor, NULL);
// Intercept function for read conversions
static int read_intercept_fn(void *userbuf, MPI_Datatype type_c, int count_c,
void *filebuf, MPI_Offset position_c,
void *extra_state)
{
MPI::Datatype type_cxx(type_c);
MPI::Offset position_cxx(position_c);
intercept_extra_state_t *intercept_data =
(intercept_extra_state_t*) extra_state;
intercept_data->read_fn_cxx(userbuf, type_cxx, count_c, filebuf,
position_cxx, intercept_data->extra_state_cxx);
return MPI_SUCCESS;
}
// Intercept function for write conversions
static int write_intercept_fn(void *userbuf, MPI_Datatype type_c, int count_c,
void *filebuf, MPI_Offset position_c,
void *extra_state)
{
MPI::Datatype type_cxx(type_c);
MPI::Offset position_cxx(position_c);
intercept_extra_state_t *intercept_data =
(intercept_extra_state_t*) extra_state;
intercept_data->write_fn_cxx(userbuf, type_cxx, count_c, filebuf,
position_cxx, intercept_data->extra_state_cxx);
return MPI_SUCCESS;
}
// Intercept function for extent calculations
static int extent_intercept_fn(MPI_Datatype type_c, MPI_Aint *file_extent_c,
void *extra_state)
{
MPI::Datatype type_cxx(type_c);
MPI::Aint file_extent_cxx(*file_extent_c);
intercept_extra_state_t *intercept_data =
(intercept_extra_state_t*) extra_state;
intercept_data->extent_fn_cxx(type_cxx, file_extent_cxx,
intercept_data->extra_state_cxx);
*file_extent_c = file_extent_cxx;
return MPI_SUCCESS;
}
// C++ bindings for MPI::Register_datarep
void
MPI::Register_datarep(const char* datarep,
Datarep_conversion_function* read_fn_cxx,
Datarep_conversion_function* write_fn_cxx,
Datarep_extent_function* extent_fn_cxx,
void* extra_state_cxx)
{
intercept_extra_state_t *intercept;
intercept = OBJ_NEW(intercept_extra_state_t);
if (NULL == intercept) {
OMPI_ERRHANDLER_INVOKE(MPI_FILE_NULL, OMPI_ERR_OUT_OF_RESOURCE,
"MPI::Register_datarep");
return;
}
opal_list_append(&ompi_registered_datareps, &(intercept->base));
intercept->read_fn_cxx = read_fn_cxx;
intercept->write_fn_cxx = write_fn_cxx;
intercept->extent_fn_cxx = extent_fn_cxx;
intercept->extra_state_cxx = extra_state_cxx;
(void)MPI_Register_datarep(const_cast<char*>(datarep), read_intercept_fn,
write_intercept_fn,
extent_intercept_fn, intercept);
}
void
MPI::Register_datarep(const char* datarep,
MPI_Datarep_conversion_function* read_fn_c,
Datarep_conversion_function* write_fn_cxx,
Datarep_extent_function* extent_fn_cxx,
void* extra_state_cxx)
{
intercept_extra_state_t *intercept;
intercept = OBJ_NEW(intercept_extra_state_t);
if (NULL == intercept) {
OMPI_ERRHANDLER_INVOKE(MPI_FILE_NULL, OMPI_ERR_OUT_OF_RESOURCE,
"MPI::Register_datarep");
return;
}
opal_list_append(&ompi_registered_datareps, &(intercept->base));
intercept->write_fn_cxx = write_fn_cxx;
intercept->extent_fn_cxx = extent_fn_cxx;
intercept->extra_state_cxx = extra_state_cxx;
(void)MPI_Register_datarep(const_cast<char*>(datarep), read_fn_c,
write_intercept_fn,
extent_intercept_fn, intercept);
}
void
MPI::Register_datarep(const char* datarep,
Datarep_conversion_function* read_fn_cxx,
MPI_Datarep_conversion_function* write_fn_c,
Datarep_extent_function* extent_fn_cxx,
void* extra_state_cxx)
{
intercept_extra_state_t *intercept;
intercept = OBJ_NEW(intercept_extra_state_t);
if (NULL == intercept) {
OMPI_ERRHANDLER_INVOKE(MPI_FILE_NULL, OMPI_ERR_OUT_OF_RESOURCE,
"MPI::Register_datarep");
return;
}
opal_list_append(&ompi_registered_datareps, &(intercept->base));
intercept->read_fn_cxx = read_fn_cxx;
intercept->extent_fn_cxx = extent_fn_cxx;
intercept->extra_state_cxx = extra_state_cxx;
(void)MPI_Register_datarep(const_cast<char*>(datarep), read_intercept_fn,
write_fn_c,
extent_intercept_fn, intercept);
}
void
MPI::Register_datarep(const char* datarep,
MPI_Datarep_conversion_function* read_fn_c,
MPI_Datarep_conversion_function* write_fn_c,
Datarep_extent_function* extent_fn_cxx,
void* extra_state_cxx)
{
intercept_extra_state_t *intercept;
intercept = OBJ_NEW(intercept_extra_state_t);
if (NULL == intercept) {
OMPI_ERRHANDLER_INVOKE(MPI_FILE_NULL, OMPI_ERR_OUT_OF_RESOURCE,
"MPI::Register_datarep");
return;
}
opal_list_append(&ompi_registered_datareps, &(intercept->base));
intercept->extent_fn_cxx = extent_fn_cxx;
intercept->extra_state_cxx = extra_state_cxx;
(void)MPI_Register_datarep(const_cast<char*>(datarep), read_fn_c,
write_fn_c,
extent_intercept_fn, intercept);
}
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