139 строки
5.3 KiB
C
139 строки
5.3 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 (c) 2008-2011 University of Houston. All rights reserved.
|
|
* $COPYRIGHT$
|
|
*
|
|
* Additional copyrights may follow
|
|
*
|
|
* $HEADER$
|
|
*/
|
|
|
|
#ifndef OMPI_MCA_SHAREDFP_H
|
|
#define OMPI_MCA_SHAREDFP_H
|
|
|
|
#include "ompi_config.h"
|
|
#include "mpi.h"
|
|
#include "opal/mca/mca.h"
|
|
#include "opal/mca/base/base.h"
|
|
|
|
BEGIN_C_DECLS
|
|
|
|
struct mca_io_ompio_file_t;
|
|
|
|
/*
|
|
* Macro for use in components that are of type coll
|
|
*/
|
|
#define MCA_SHAREDFP_BASE_VERSION_2_0_0 \
|
|
MCA_BASE_VERSION_2_0_0, \
|
|
"sharedfp", 2, 0, 0
|
|
|
|
/*
|
|
* This framework abstracts out operations of the shared filepointer
|
|
* in MPI I/O. It is initialized by the OMPIO module whenever a file is
|
|
* opened.
|
|
*
|
|
* These are the component function prototypes. These function pointers
|
|
* go into the component structure. These functions (query() and finalize()
|
|
* are called during sharedfp_base_select(). Each component is query() ied
|
|
* and subsequently, all the unselected components are finalize() 'ed
|
|
* so that any *stuff* they did during query() can be undone. By
|
|
* similar logic, finalize() is also called on the component which
|
|
* was selected when the communicator is being destroyed.
|
|
*
|
|
* So, to sum it up, every component carries 4 functions:
|
|
* 1. open() - called during MPI_INIT
|
|
* 2. close() - called during MPI_FINALIZE
|
|
* 3. query() - called to select a particular component
|
|
* 4. finalize() - called when actions taken during query have
|
|
* to be undone
|
|
* In addition, two functions, namely updating the value of a shared
|
|
* file pointer and moving the shared file pointer (seek) have to be provided
|
|
* by every module.
|
|
*/
|
|
|
|
/*
|
|
* **************** component struct *******************************
|
|
* *********** These functions go in the component struct **********
|
|
* **************** component struct *******************************
|
|
*/
|
|
|
|
typedef int (*mca_sharedfp_base_component_init_query_1_0_0_fn_t)
|
|
(bool enable_progress_threads,
|
|
bool enable_mpi_threads);
|
|
|
|
typedef struct mca_sharedfp_base_module_1_0_0_t *
|
|
(*mca_sharedfp_base_component_file_query_1_0_0_fn_t) (int *priority);
|
|
|
|
typedef int (*mca_sharedfp_base_component_file_unquery_1_0_0_fn_t)
|
|
(struct mca_io_ompio_file_t *file);
|
|
|
|
/*
|
|
* ****************** component struct ******************************
|
|
* Structure for sharedfp v2.0.0 components.This is chained to MCA v2.0.0
|
|
* ****************** component struct ******************************
|
|
*/
|
|
struct mca_sharedfp_base_component_2_0_0_t {
|
|
mca_base_component_t sharedfpm_version;
|
|
mca_base_component_data_t sharedfpm_data;
|
|
|
|
mca_sharedfp_base_component_init_query_1_0_0_fn_t sharedfpm_init_query;
|
|
mca_sharedfp_base_component_file_query_1_0_0_fn_t sharedfpm_file_query;
|
|
mca_sharedfp_base_component_file_unquery_1_0_0_fn_t sharedfpm_file_unquery;
|
|
};
|
|
typedef struct mca_sharedfp_base_component_2_0_0_t mca_sharedfp_base_component_2_0_0_t;
|
|
typedef struct mca_sharedfp_base_component_2_0_0_t mca_sharedfp_base_component_t;
|
|
|
|
/*
|
|
* ***********************************************************************
|
|
* ************************ Interface function definitions **************
|
|
* These are the typedesharedfp for the function pointers to various sharedfp
|
|
* backend functions which will be used by the various sharedfp components
|
|
* ***********************************************************************
|
|
*/
|
|
|
|
typedef int (*mca_sharedfp_base_module_init_1_0_0_fn_t)
|
|
(struct mca_io_ompio_file_t *file);
|
|
|
|
typedef int (*mca_sharedfp_base_module_finalize_1_0_0_fn_t)
|
|
(struct mca_io_ompio_file_t *file);
|
|
|
|
typedef int (*mca_sharedfp_base_module_update_fn_t)(
|
|
struct mca_io_ompio_file_t *fh, int num_bytes,
|
|
OMPI_MPI_OFFSET_TYPE current_position);
|
|
typedef int (*mca_sharedfp_base_module_seek_fn_t)(
|
|
struct mca_io_ompio_file_t *fh, OMPI_MPI_OFFSET_TYPE position);
|
|
|
|
/*
|
|
* ***********************************************************************
|
|
* *************************** module structure *************************
|
|
* ***********************************************************************
|
|
*/
|
|
struct mca_sharedfp_base_module_1_0_0_t {
|
|
/*
|
|
* Per-file initialization function. This is called only
|
|
* on the module which is selected. The finalize corresponding to
|
|
* this function is present on the component struct above
|
|
*/
|
|
mca_sharedfp_base_module_init_1_0_0_fn_t sharedfp_module_init;
|
|
mca_sharedfp_base_module_finalize_1_0_0_fn_t sharedfp_module_finalize;
|
|
|
|
/* SHAREDFP function pointers */
|
|
mca_sharedfp_base_module_update_fn_t sharedfp_update;
|
|
mca_sharedfp_base_module_seek_fn_t sharedfp_seek;
|
|
};
|
|
typedef struct mca_sharedfp_base_module_1_0_0_t mca_sharedfp_base_module_1_0_0_t;
|
|
typedef mca_sharedfp_base_module_1_0_0_t mca_sharedfp_base_module_t;
|
|
|
|
END_C_DECLS
|
|
|
|
#endif /* OMPI_MCA_SHAREDFP_H */
|