141 строка
6.6 KiB
C
141 строка
6.6 KiB
C
/*
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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) 2004-2006 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) 2008-2015 University of Houston. All rights reserved.
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* Copyright (c) 2015 Cisco Systems, Inc. All rights 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 MCA_SHAREDFP_sm_H
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#define MCA_SHAREDFP_sm_H
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#include "ompi_config.h"
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#include "ompi/mca/mca.h"
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#include "ompi/mca/sharedfp/sharedfp.h"
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#include "ompi/mca/io/ompio/io_ompio.h"
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#include <semaphore.h>
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BEGIN_C_DECLS
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int mca_sharedfp_sm_component_init_query(bool enable_progress_threads,
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bool enable_mpi_threads);
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struct mca_sharedfp_base_module_1_0_0_t *
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mca_sharedfp_sm_component_file_query (mca_io_ompio_file_t *file, int *priority);
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int mca_sharedfp_sm_component_file_unquery (mca_io_ompio_file_t *file);
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int mca_sharedfp_sm_module_init (mca_io_ompio_file_t *file);
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int mca_sharedfp_sm_module_finalize (mca_io_ompio_file_t *file);
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extern int mca_sharedfp_sm_priority;
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extern int mca_sharedfp_sm_verbose;
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OMPI_MODULE_DECLSPEC extern mca_sharedfp_base_component_2_0_0_t mca_sharedfp_sm_component;
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/*
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* ******************************************************************
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* ********* functions which are implemented in this module *********
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* ******************************************************************
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*/
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/*IMPORANT: Update here when implementing functions from sharedfp API*/
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int mca_sharedfp_sm_seek (mca_io_ompio_file_t *fh,
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OMPI_MPI_OFFSET_TYPE offset, int whence);
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int mca_sharedfp_sm_get_position (mca_io_ompio_file_t *fh,
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OMPI_MPI_OFFSET_TYPE * offset);
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int mca_sharedfp_sm_file_open (struct ompi_communicator_t *comm,
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const char* filename,
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int amode,
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struct ompi_info_t *info,
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mca_io_ompio_file_t *fh);
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int mca_sharedfp_sm_file_close (mca_io_ompio_file_t *fh);
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int mca_sharedfp_sm_read (mca_io_ompio_file_t *fh,
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void *buf, int count, MPI_Datatype datatype, MPI_Status *status);
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int mca_sharedfp_sm_read_ordered (mca_io_ompio_file_t *fh,
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void *buf, int count, struct ompi_datatype_t *datatype,
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ompi_status_public_t *status
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);
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int mca_sharedfp_sm_read_ordered_begin (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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int mca_sharedfp_sm_read_ordered_end (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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int mca_sharedfp_sm_iread (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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int mca_sharedfp_sm_write (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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int mca_sharedfp_sm_write_ordered (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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int mca_sharedfp_sm_write_ordered_begin (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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int mca_sharedfp_sm_write_ordered_end (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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int mca_sharedfp_sm_iwrite (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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/*--------------------------------------------------------------*
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*Structures and definitions only for this component
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*--------------------------------------------------------------*/
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struct mca_sharedfp_sm_offset{
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sem_t mutex; /* the mutex: a POSIX memory-based unnamed semaphore */
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long long offset; /* and the shared file pointer offset */
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};
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/*This structure will hang off of the mca_sharedfp_base_data_t's
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*selected_module_data attribute
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*/
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struct mca_sharedfp_sm_data
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{
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struct mca_sharedfp_sm_offset * sm_offset_ptr;
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/*save filename so that we can remove the file on close*/
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char * sm_filename;
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/* The mutex: it will either point to a POSIX memory-based named
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semaphore, or it will point to the a POSIX memory-based unnamed
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semaphore located in sm_offset_ptr->mutex. */
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sem_t *mutex;
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char *sem_name; /* Name of the semaphore */
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};
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typedef struct mca_sharedfp_sm_data sm_data;
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int mca_sharedfp_sm_request_position (struct mca_sharedfp_base_data_t * sh,
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int bytes_requested,
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OMPI_MPI_OFFSET_TYPE * offset);
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/*
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* ******************************************************************
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* ************ functions implemented in this module end ************
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* ******************************************************************
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*/
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END_C_DECLS
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#endif /* MCA_SHAREDFP_sm_H */
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