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/*
* Copyright © 1999-2001 NCSA
* All rights reserved.
*
* Programmer: Robb Matzke <matzke@llnl.gov>
* Monday, August 2, 1999
*
* Purpose: The public header file for the mpio driver.
*/
#ifndef H5FDmpio_H
#define H5FDmpio_H
#include "H5FDpublic.h"
#include "H5Ipublic.h"
#ifdef H5_HAVE_PARALLEL
# define H5FD_MPIO (H5FD_mpio_init())
#else
# define H5FD_MPIO (-1)
#endif /* H5_HAVE_PARALLEL */
/* Type of I/O for data transfer properties */
typedef enum H5FD_mpio_xfer_t {
H5FD_MPIO_INDEPENDENT = 0, /*zero is the default*/
H5FD_MPIO_COLLECTIVE
} H5FD_mpio_xfer_t;
/*
* MPIO-specific data transfer properties. This struct is here only because
* we need it in special case code throughout the library. Applications
* please use H5Pset_dxpl_mpio() instead.
*/
typedef struct H5FD_mpio_dxpl_t {
H5FD_mpio_xfer_t xfer_mode; /*collective or independent I/O */
} H5FD_mpio_dxpl_t;
/* Macros */
#define IS_H5FD_MPIO(f) /* (H5F_t *f) */ \
(H5FD_MPIO==H5F_get_driver_id(f))
#ifdef H5_HAVE_PARALLEL
/*Turn on H5FDmpio_debug if H5F_DEBUG is on */
#ifdef H5F_DEBUG
#ifndef H5FDmpio_DEBUG
#define H5FDmpio_DEBUG
#endif
#endif
/* Function prototypes */
#ifdef __cplusplus
extern "C" {
#endif
H5_DLL hid_t H5FD_mpio_init(void);
H5_DLL herr_t H5Pset_fapl_mpio(hid_t fapl_id, MPI_Comm comm, MPI_Info info);
H5_DLL herr_t H5Pget_fapl_mpio(hid_t fapl_id, MPI_Comm *comm/*out*/,
MPI_Info *info/*out*/);
H5_DLL herr_t H5Pset_dxpl_mpio(hid_t dxpl_id, H5FD_mpio_xfer_t xfer_mode);
H5_DLL herr_t H5Pget_dxpl_mpio(hid_t dxpl_id, H5FD_mpio_xfer_t *xfer_mode/*out*/);
H5_DLL MPI_Comm H5FD_mpio_communicator(H5FD_t *_file);
H5_DLL herr_t H5FD_mpio_setup(hid_t dxpl_id, MPI_Datatype btype,
MPI_Datatype ftype, unsigned use_view);
H5_DLL herr_t H5FD_mpio_teardown(hid_t dxpl_id);
H5_DLL herr_t H5FD_mpio_wait_for_left_neighbor(H5FD_t *file);
H5_DLL herr_t H5FD_mpio_signal_right_neighbor(H5FD_t *file);
H5_DLL int H5FD_mpio_mpi_rank(H5FD_t *_file);
H5_DLL int H5FD_mpio_mpi_size(H5FD_t *_file);
#ifdef __cplusplus
}
#endif
#endif /* H5_HAVE_PARALLEL */
#endif
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