/usr/include/hdf5/openmpi/H5FDpublic.h is in libhdf5-openmpi-dev 1.8.13+docs-15+deb8u1.
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* Copyright by The HDF Group. *
* Copyright by the Board of Trustees of the University of Illinois. *
* All rights reserved. *
* *
* This file is part of HDF5. The full HDF5 copyright notice, including *
* terms governing use, modification, and redistribution, is contained in *
* the files COPYING and Copyright.html. COPYING can be found at the root *
* of the source code distribution tree; Copyright.html can be found at the *
* root level of an installed copy of the electronic HDF5 document set and *
* is linked from the top-level documents page. It can also be found at *
* http://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have *
* access to either file, you may request a copy from help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*
* Programmer: Robb Matzke <matzke@llnl.gov>
* Monday, July 26, 1999
*/
#ifndef _H5FDpublic_H
#define _H5FDpublic_H
#include "H5public.h"
#include "H5Fpublic.h" /*for H5F_close_degree_t */
#define H5_HAVE_VFL 1 /*define a convenient app feature test*/
#define H5FD_VFD_DEFAULT 0 /* Default VFL driver value */
/* Types of allocation requests: see H5Fpublic.h */
typedef enum H5F_mem_t H5FD_mem_t;
/* Map "fractal heap" header blocks to 'ohdr' type file memory, since its
* a fair amount of work to add a new kind of file memory and they are similar
* enough to object headers and probably too minor to deserve their own type.
*
* Map "fractal heap" indirect blocks to 'ohdr' type file memory, since they
* are similar to fractal heap header blocks.
*
* Map "fractal heap" direct blocks to 'lheap' type file memory, since they
* will be replacing local heaps.
*
* Map "fractal heap" 'huge' objects to 'draw' type file memory, since they
* represent large objects that are directly stored in the file.
*
* -QAK
*/
#define H5FD_MEM_FHEAP_HDR H5FD_MEM_OHDR
#define H5FD_MEM_FHEAP_IBLOCK H5FD_MEM_OHDR
#define H5FD_MEM_FHEAP_DBLOCK H5FD_MEM_LHEAP
#define H5FD_MEM_FHEAP_HUGE_OBJ H5FD_MEM_DRAW
/* Map "free space" header blocks to 'ohdr' type file memory, since its
* a fair amount of work to add a new kind of file memory and they are similar
* enough to object headers and probably too minor to deserve their own type.
*
* Map "free space" serialized sections to 'lheap' type file memory, since they
* are similar enough to local heap info.
*
* -QAK
*/
#define H5FD_MEM_FSPACE_HDR H5FD_MEM_OHDR
#define H5FD_MEM_FSPACE_SINFO H5FD_MEM_LHEAP
/* Map "shared object header message" master table to 'ohdr' type file memory,
* since its a fair amount of work to add a new kind of file memory and they are
* similar enough to object headers and probably too minor to deserve their own
* type.
*
* Map "shared object header message" indices to 'btree' type file memory,
* since they are similar enough to B-tree nodes.
*
* -QAK
*/
#define H5FD_MEM_SOHM_TABLE H5FD_MEM_OHDR
#define H5FD_MEM_SOHM_INDEX H5FD_MEM_BTREE
/*
* A free-list map which maps all types of allocation requests to a single
* free list. This is useful for drivers that don't really care about
* keeping different requests segregated in the underlying file and which
* want to make most efficient reuse of freed memory. The use of the
* H5FD_MEM_SUPER free list is arbitrary.
*/
#define H5FD_FLMAP_SINGLE { \
H5FD_MEM_SUPER, /*default*/ \
H5FD_MEM_SUPER, /*super*/ \
H5FD_MEM_SUPER, /*btree*/ \
H5FD_MEM_SUPER, /*draw*/ \
H5FD_MEM_SUPER, /*gheap*/ \
H5FD_MEM_SUPER, /*lheap*/ \
H5FD_MEM_SUPER /*ohdr*/ \
}
/*
* A free-list map which segregates requests into `raw' or `meta' data
* pools.
*/
#define H5FD_FLMAP_DICHOTOMY { \
H5FD_MEM_SUPER, /*default*/ \
H5FD_MEM_SUPER, /*super*/ \
H5FD_MEM_SUPER, /*btree*/ \
H5FD_MEM_DRAW, /*draw*/ \
H5FD_MEM_DRAW, /*gheap*/ \
H5FD_MEM_SUPER, /*lheap*/ \
H5FD_MEM_SUPER /*ohdr*/ \
}
/*
* The default free list map which causes each request type to use it's own
* free-list.
*/
#define H5FD_FLMAP_DEFAULT { \
H5FD_MEM_DEFAULT, /*default*/ \
H5FD_MEM_DEFAULT, /*super*/ \
H5FD_MEM_DEFAULT, /*btree*/ \
H5FD_MEM_DEFAULT, /*draw*/ \
H5FD_MEM_DEFAULT, /*gheap*/ \
H5FD_MEM_DEFAULT, /*lheap*/ \
H5FD_MEM_DEFAULT /*ohdr*/ \
}
/* Define VFL driver features that can be enabled on a per-driver basis */
/* These are returned with the 'query' function pointer in H5FD_class_t */
/*
* Defining the H5FD_FEAT_AGGREGATE_METADATA for a VFL driver means that
* the library will attempt to allocate a larger block for metadata and
* then sub-allocate each metadata request from that larger block.
*/
#define H5FD_FEAT_AGGREGATE_METADATA 0x00000001
/*
* Defining the H5FD_FEAT_ACCUMULATE_METADATA for a VFL driver means that
* the library will attempt to cache metadata as it is written to the file
* and build up a larger block of metadata to eventually pass to the VFL
* 'write' routine.
*
* Distinguish between updating the metadata accumulator on writes and
* reads. This is particularly (perhaps only, even) important for MPI-I/O
* where we guarantee that writes are collective, but reads may not be.
* If we were to allow the metadata accumulator to be written during a
* read operation, the application would hang.
*/
#define H5FD_FEAT_ACCUMULATE_METADATA_WRITE 0x00000002
#define H5FD_FEAT_ACCUMULATE_METADATA_READ 0x00000004
#define H5FD_FEAT_ACCUMULATE_METADATA (H5FD_FEAT_ACCUMULATE_METADATA_WRITE|H5FD_FEAT_ACCUMULATE_METADATA_READ)
/*
* Defining the H5FD_FEAT_DATA_SIEVE for a VFL driver means that
* the library will attempt to cache raw data as it is read from/written to
* a file in a "data seive" buffer. See Rajeev Thakur's papers:
* http://www.mcs.anl.gov/~thakur/papers/romio-coll.ps.gz
* http://www.mcs.anl.gov/~thakur/papers/mpio-high-perf.ps.gz
*/
#define H5FD_FEAT_DATA_SIEVE 0x00000008
/*
* Defining the H5FD_FEAT_AGGREGATE_SMALLDATA for a VFL driver means that
* the library will attempt to allocate a larger block for "small" raw data
* and then sub-allocate "small" raw data requests from that larger block.
*/
#define H5FD_FEAT_AGGREGATE_SMALLDATA 0x00000010
/*
* Defining the H5FD_FEAT_IGNORE_DRVRINFO for a VFL driver means that
* the library will ignore the driver info that is encoded in the file
* for the VFL driver. (This will cause the driver info to be eliminated
* from the file when it is flushed/closed, if the file is opened R/W).
*/
#define H5FD_FEAT_IGNORE_DRVRINFO 0x00000020
/*
* Defining the H5FD_FEAT_DIRTY_SBLK_LOAD for a VFL driver means that
* the library will mark the superblock dirty when the file is opened
* R/W. This will cause the driver info to be re-encoded when the file
* is flushed/closed.
*/
#define H5FD_FEAT_DIRTY_SBLK_LOAD 0x00000040
/*
* Defining the H5FD_FEAT_POSIX_COMPAT_HANDLE for a VFL driver means that
* the handle for the VFD (returned with the 'get_handle' callback) is
* of type 'int' and is compatible with POSIX I/O calls.
*/
#define H5FD_FEAT_POSIX_COMPAT_HANDLE 0x00000080
/*
* Defining the H5FD_FEAT_ALLOW_FILE_IMAGE for a VFL driver means that
* the driver is able to use a file image in the fapl as the initial
* contents of a file.
*/
#define H5FD_FEAT_ALLOW_FILE_IMAGE 0x00000400
/*
* Defining the H5FD_FEAT_CAN_USE_FILE_IMAGE_CALLBACKS for a VFL driver
* means that the driver is able to use callbacks to make a copy of the
* image to store in memory.
*/
#define H5FD_FEAT_CAN_USE_FILE_IMAGE_CALLBACKS 0x00000800
/* Forward declaration */
typedef struct H5FD_t H5FD_t;
/* Class information for each file driver */
typedef struct H5FD_class_t {
const char *name;
haddr_t maxaddr;
H5F_close_degree_t fc_degree;
hsize_t (*sb_size)(H5FD_t *file);
herr_t (*sb_encode)(H5FD_t *file, char *name/*out*/,
unsigned char *p/*out*/);
herr_t (*sb_decode)(H5FD_t *f, const char *name, const unsigned char *p);
size_t fapl_size;
void * (*fapl_get)(H5FD_t *file);
void * (*fapl_copy)(const void *fapl);
herr_t (*fapl_free)(void *fapl);
size_t dxpl_size;
void * (*dxpl_copy)(const void *dxpl);
herr_t (*dxpl_free)(void *dxpl);
H5FD_t *(*open)(const char *name, unsigned flags, hid_t fapl,
haddr_t maxaddr);
herr_t (*close)(H5FD_t *file);
int (*cmp)(const H5FD_t *f1, const H5FD_t *f2);
herr_t (*query)(const H5FD_t *f1, unsigned long *flags);
herr_t (*get_type_map)(const H5FD_t *file, H5FD_mem_t *type_map);
haddr_t (*alloc)(H5FD_t *file, H5FD_mem_t type, hid_t dxpl_id, hsize_t size);
herr_t (*free)(H5FD_t *file, H5FD_mem_t type, hid_t dxpl_id,
haddr_t addr, hsize_t size);
haddr_t (*get_eoa)(const H5FD_t *file, H5FD_mem_t type);
herr_t (*set_eoa)(H5FD_t *file, H5FD_mem_t type, haddr_t addr);
haddr_t (*get_eof)(const H5FD_t *file);
herr_t (*get_handle)(H5FD_t *file, hid_t fapl, void**file_handle);
herr_t (*read)(H5FD_t *file, H5FD_mem_t type, hid_t dxpl,
haddr_t addr, size_t size, void *buffer);
herr_t (*write)(H5FD_t *file, H5FD_mem_t type, hid_t dxpl,
haddr_t addr, size_t size, const void *buffer);
herr_t (*flush)(H5FD_t *file, hid_t dxpl_id, unsigned closing);
herr_t (*truncate)(H5FD_t *file, hid_t dxpl_id, hbool_t closing);
herr_t (*lock)(H5FD_t *file, unsigned char *oid, unsigned lock_type, hbool_t last);
herr_t (*unlock)(H5FD_t *file, unsigned char *oid, hbool_t last);
H5FD_mem_t fl_map[H5FD_MEM_NTYPES];
} H5FD_class_t;
/* A free list is a singly-linked list of address/size pairs. */
typedef struct H5FD_free_t {
haddr_t addr;
hsize_t size;
struct H5FD_free_t *next;
} H5FD_free_t;
/*
* The main datatype for each driver. Public fields common to all drivers
* are declared here and the driver appends private fields in memory.
*/
struct H5FD_t {
hid_t driver_id; /*driver ID for this file */
const H5FD_class_t *cls; /*constant class info */
unsigned long fileno; /* File 'serial' number */
unsigned long feature_flags; /* VFL Driver feature Flags */
haddr_t maxaddr; /* For this file, overrides class */
haddr_t base_addr; /* Base address for HDF5 data w/in file */
/* Space allocation management fields */
hsize_t threshold; /* Threshold for alignment */
hsize_t alignment; /* Allocation alignment */
};
/* Define enum for the source of file image callbacks */
typedef enum {
H5FD_FILE_IMAGE_OP_NO_OP,
H5FD_FILE_IMAGE_OP_PROPERTY_LIST_SET,
H5FD_FILE_IMAGE_OP_PROPERTY_LIST_COPY,
H5FD_FILE_IMAGE_OP_PROPERTY_LIST_GET,
H5FD_FILE_IMAGE_OP_PROPERTY_LIST_CLOSE,
H5FD_FILE_IMAGE_OP_FILE_OPEN,
H5FD_FILE_IMAGE_OP_FILE_RESIZE,
H5FD_FILE_IMAGE_OP_FILE_CLOSE
} H5FD_file_image_op_t;
/* Define structure to hold file image callbacks */
typedef struct {
void *(*image_malloc)(size_t size, H5FD_file_image_op_t file_image_op,
void *udata);
void *(*image_memcpy)(void *dest, const void *src, size_t size,
H5FD_file_image_op_t file_image_op, void *udata);
void *(*image_realloc)(void *ptr, size_t size,
H5FD_file_image_op_t file_image_op, void *udata);
herr_t (*image_free)(void *ptr, H5FD_file_image_op_t file_image_op,
void *udata);
void *(*udata_copy)(void *udata);
herr_t (*udata_free)(void *udata);
void *udata;
} H5FD_file_image_callbacks_t;
#ifdef __cplusplus
extern "C" {
#endif
/* Function prototypes */
H5_DLL hid_t H5FDregister(const H5FD_class_t *cls);
H5_DLL herr_t H5FDunregister(hid_t driver_id);
H5_DLL H5FD_t *H5FDopen(const char *name, unsigned flags, hid_t fapl_id,
haddr_t maxaddr);
H5_DLL herr_t H5FDclose(H5FD_t *file);
H5_DLL int H5FDcmp(const H5FD_t *f1, const H5FD_t *f2);
H5_DLL int H5FDquery(const H5FD_t *f, unsigned long *flags);
H5_DLL haddr_t H5FDalloc(H5FD_t *file, H5FD_mem_t type, hid_t dxpl_id, hsize_t size);
H5_DLL herr_t H5FDfree(H5FD_t *file, H5FD_mem_t type, hid_t dxpl_id,
haddr_t addr, hsize_t size);
H5_DLL haddr_t H5FDget_eoa(H5FD_t *file, H5FD_mem_t type);
H5_DLL herr_t H5FDset_eoa(H5FD_t *file, H5FD_mem_t type, haddr_t eoa);
H5_DLL haddr_t H5FDget_eof(H5FD_t *file);
H5_DLL herr_t H5FDget_vfd_handle(H5FD_t *file, hid_t fapl, void**file_handle);
H5_DLL herr_t H5FDread(H5FD_t *file, H5FD_mem_t type, hid_t dxpl_id,
haddr_t addr, size_t size, void *buf/*out*/);
H5_DLL herr_t H5FDwrite(H5FD_t *file, H5FD_mem_t type, hid_t dxpl_id,
haddr_t addr, size_t size, const void *buf);
H5_DLL herr_t H5FDflush(H5FD_t *file, hid_t dxpl_id, unsigned closing);
H5_DLL herr_t H5FDtruncate(H5FD_t *file, hid_t dxpl_id, hbool_t closing);
#ifdef __cplusplus
}
#endif
#endif
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