238 строки
9.6 KiB
C
238 строки
9.6 KiB
C
/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
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/*
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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) 2008-2013 University of Houston. All rights reserved.
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* Copyright (c) 2015 Los Alamos National Security, LLC. All rights
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* reserved.
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* Copyright (c) 2015 Research Organization for Information Science
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* and Technology (RIST). 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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#ifndef OMPI_MCA_SHAREDFP_H
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#define OMPI_MCA_SHAREDFP_H
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#include "ompi_config.h"
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#include "mpi.h"
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#include "ompi/mca/mca.h"
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#include "opal/mca/base/base.h"
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#include "ompi/request/request.h"
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BEGIN_C_DECLS
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struct mca_io_ompio_file_t;
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struct ompi_file_t;
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/*
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* Macro for use in components that are of type coll
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*/
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#define MCA_SHAREDFP_BASE_VERSION_2_0_0 \
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OMPI_MCA_BASE_VERSION_2_1_0("sharedfp", 2, 0, 0)
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/*
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* This framework abstracts out operations of the shared filepointer
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* in MPI I/O. It is initialized by the OMPIO module whenever a file is
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* opened.
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*
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* These are the component function prototypes. These function pointers
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* go into the component structure. These functions (query() and finalize()
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* are called during sharedfp_base_select(). Each component is query() ied
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* and subsequently, all the unselected components are finalize() 'ed
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* so that any *stuff* they did during query() can be undone. By
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* similar logic, finalize() is also called on the component which
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* was selected when the communicator is being destroyed.
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*
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* So, to sum it up, every component carries 4 functions:
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* 1. open() - called during MPI_INIT
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* 2. close() - called during MPI_FINALIZE
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* 3. query() - called to select a particular component
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* 4. finalize() - called when actions taken during query have
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* to be undone
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* In addition, two functions, namely updating the value of a shared
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* file pointer and moving the shared file pointer (seek) have to be provided
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* by every module.
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*/
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/*
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* **************** component struct *******************************
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* *********** These functions go in the component struct **********
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* **************** component struct *******************************
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*/
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typedef int (*mca_sharedfp_base_component_init_query_1_0_0_fn_t)
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(bool enable_progress_threads,
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bool enable_mpi_threads);
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typedef struct mca_sharedfp_base_module_1_0_0_t *
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(*mca_sharedfp_base_component_file_query_1_0_0_fn_t)
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(struct mca_io_ompio_file_t *file, int *priority);
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typedef int (*mca_sharedfp_base_component_file_unquery_1_0_0_fn_t)
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(struct mca_io_ompio_file_t *file);
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/*
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* ****************** component struct ******************************
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* Structure for sharedfp v2.0.0 components.This is chained to MCA v2.0.0
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* ****************** component struct ******************************
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*/
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struct mca_sharedfp_base_component_2_0_0_t {
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mca_base_component_t sharedfpm_version;
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mca_base_component_data_t sharedfpm_data;
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mca_sharedfp_base_component_init_query_1_0_0_fn_t sharedfpm_init_query;
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mca_sharedfp_base_component_file_query_1_0_0_fn_t sharedfpm_file_query;
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mca_sharedfp_base_component_file_unquery_1_0_0_fn_t sharedfpm_file_unquery;
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};
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typedef struct mca_sharedfp_base_component_2_0_0_t mca_sharedfp_base_component_2_0_0_t;
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typedef struct mca_sharedfp_base_component_2_0_0_t mca_sharedfp_base_component_t;
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/*
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* ***********************************************************************
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* ************************ Interface function definitions **************
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* These are the typedesharedfp for the function pointers to various sharedfp
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* backend functions which will be used by the various sharedfp components
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* ***********************************************************************
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*/
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typedef int (*mca_sharedfp_base_module_init_1_0_0_fn_t)
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(struct mca_io_ompio_file_t *file);
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typedef int (*mca_sharedfp_base_module_finalize_1_0_0_fn_t)
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(struct mca_io_ompio_file_t *file);
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/* SHAREDFP function definitions */
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/* IMPORTANT: Update here when adding sharedfp component interface functions*/
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typedef int (*mca_sharedfp_base_module_seek_fn_t)(
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struct mca_io_ompio_file_t *fh, OMPI_MPI_OFFSET_TYPE offset, int whence);
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typedef int (*mca_sharedfp_base_module_get_position_fn_t)(
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struct mca_io_ompio_file_t *fh, OMPI_MPI_OFFSET_TYPE * offset);
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typedef int (*mca_sharedfp_base_module_write_fn_t)(
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struct mca_io_ompio_file_t *fh,
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const void *buf,
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int count,
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struct ompi_datatype_t *datatype,
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ompi_status_public_t *status);
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typedef int (*mca_sharedfp_base_module_write_ordered_fn_t)(
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struct mca_io_ompio_file_t *fh,
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const void *buf,
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int count,
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struct ompi_datatype_t *datatype,
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ompi_status_public_t *status);
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typedef int (*mca_sharedfp_base_module_write_ordered_begin_fn_t)(
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struct mca_io_ompio_file_t *fh,
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const void *buf,
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int count,
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struct ompi_datatype_t *datatype);
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typedef int (*mca_sharedfp_base_module_write_ordered_end_fn_t)(
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struct mca_io_ompio_file_t *fh,
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const void *buf,
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ompi_status_public_t *status);
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typedef int (*mca_sharedfp_base_module_iwrite_fn_t)(
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struct mca_io_ompio_file_t *fh,
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const void *buf,
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int count,
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struct ompi_datatype_t *datatype,
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ompi_request_t ** request);
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typedef int (*mca_sharedfp_base_module_read_fn_t)(
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struct mca_io_ompio_file_t *fh,
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void *buf,
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int count,
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struct ompi_datatype_t *datatype,
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ompi_status_public_t *status);
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typedef int (*mca_sharedfp_base_module_read_ordered_fn_t)(
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struct mca_io_ompio_file_t *fh,
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void *buf,
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int count,
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struct ompi_datatype_t *datatype,
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ompi_status_public_t *status);
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typedef int (*mca_sharedfp_base_module_iread_fn_t)(
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struct mca_io_ompio_file_t *fh,
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void *buf,
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int count,
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struct ompi_datatype_t *datatype,
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ompi_request_t ** request);
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typedef int (*mca_sharedfp_base_module_read_ordered_begin_fn_t)(
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struct mca_io_ompio_file_t *fh,
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void *buf,
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int count,
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struct ompi_datatype_t *datatype);
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typedef int (*mca_sharedfp_base_module_read_ordered_end_fn_t)(
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struct mca_io_ompio_file_t *fh,
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void *buf,
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ompi_status_public_t *status);
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typedef int (*mca_sharedfp_base_module_file_open_fn_t)(
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struct ompi_communicator_t *comm, const char *filename, int amode,
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struct ompi_info_t *info, struct mca_io_ompio_file_t *fh);
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typedef int (*mca_sharedfp_base_module_file_close_fn_t)(struct mca_io_ompio_file_t *fh);
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/*
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* ***********************************************************************
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* *************************** module structure *************************
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* ***********************************************************************
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*/
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struct mca_sharedfp_base_module_1_0_0_t {
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/*
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* Per-file initialization function. This is called only
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* on the module which is selected. The finalize corresponding to
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* this function is present on the component struct above
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*/
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mca_sharedfp_base_module_init_1_0_0_fn_t sharedfp_module_init;
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mca_sharedfp_base_module_finalize_1_0_0_fn_t sharedfp_module_finalize;
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/* SHAREDFP function pointers */
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/* IMPORTANT: Update here when adding sharedfp component interface functions*/
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mca_sharedfp_base_module_seek_fn_t sharedfp_seek;
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mca_sharedfp_base_module_get_position_fn_t sharedfp_get_position;
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mca_sharedfp_base_module_read_fn_t sharedfp_read;
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mca_sharedfp_base_module_read_ordered_fn_t sharedfp_read_ordered;
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mca_sharedfp_base_module_read_ordered_begin_fn_t sharedfp_read_ordered_begin;
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mca_sharedfp_base_module_read_ordered_end_fn_t sharedfp_read_ordered_end;
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mca_sharedfp_base_module_iread_fn_t sharedfp_iread;
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mca_sharedfp_base_module_write_fn_t sharedfp_write;
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mca_sharedfp_base_module_write_ordered_fn_t sharedfp_write_ordered;
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mca_sharedfp_base_module_write_ordered_begin_fn_t sharedfp_write_ordered_begin;
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mca_sharedfp_base_module_write_ordered_end_fn_t sharedfp_write_ordered_end;
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mca_sharedfp_base_module_iwrite_fn_t sharedfp_iwrite;
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mca_sharedfp_base_module_file_open_fn_t sharedfp_file_open;
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mca_sharedfp_base_module_file_close_fn_t sharedfp_file_close;
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};
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typedef struct mca_sharedfp_base_module_1_0_0_t mca_sharedfp_base_module_1_0_0_t;
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typedef mca_sharedfp_base_module_1_0_0_t mca_sharedfp_base_module_t;
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/* This structure keeps all of the data needed by a sharedfp module.
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* This structure is assigned to the ompio file handle's
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* 'f_sharedfp_data' attribute during the call to the file_open function.
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*/
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struct mca_sharedfp_base_data_t{
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/* attributes that will be used by all of the sharedfp components */
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struct mca_io_ompio_file_t * sharedfh;
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OMPI_MPI_OFFSET_TYPE global_offset;
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struct ompi_communicator_t * comm;
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/* attributes that are specific to a component are
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* combined into a structure that is assigned to this attribute */
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void *selected_module_data;
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};
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/**************************************/
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END_C_DECLS
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#endif /* OMPI_MCA_SHAREDFP_H */
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