diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/CMakeLists.txt | 2 | ||||
| -rw-r--r-- | src/H5VLconnector.h | 503 | ||||
| -rw-r--r-- | src/H5VLconnector_passthru.h | 80 | ||||
| -rw-r--r-- | src/H5VLpassthru.c | 6 | ||||
| -rw-r--r-- | src/H5VLpublic.h | 491 | ||||
| -rw-r--r-- | src/Makefile.am | 10 |
6 files changed, 611 insertions, 481 deletions
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt index 9730436..fbaba34 100644 --- a/src/CMakeLists.txt +++ b/src/CMakeLists.txt @@ -640,6 +640,8 @@ set (H5VL_SOURCES ${HDF5_SRC_DIR}/H5VLpassthru.c ) set (H5VL_HDRS + ${HDF5_SRC_DIR}/H5VLconnector.h + ${HDF5_SRC_DIR}/H5VLconnector_passthru.h ${HDF5_SRC_DIR}/H5VLnative.h ${HDF5_SRC_DIR}/H5VLpassthru.h ${HDF5_SRC_DIR}/H5VLpublic.h diff --git a/src/H5VLconnector.h b/src/H5VLconnector.h new file mode 100644 index 0000000..9b01ca2 --- /dev/null +++ b/src/H5VLconnector.h @@ -0,0 +1,503 @@ +/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * + * Copyright by The HDF Group. * + * 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 COPYING file, which can be found at the root of the source code * + * distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases. * + * If you do not have access to either file, you may request a copy from * + * help@hdfgroup.org. * + * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ + +/* + * This file contains public declarations for authoring VOL connectors. + */ + +#ifndef _H5VLconnector_H +#define _H5VLconnector_H + +/* Public headers needed by this file */ +#include "H5public.h" /* Generic Functions */ +#include "H5Apublic.h" /* Attributes */ +#include "H5ESpublic.h" /* Event Stack */ +#include "H5Fpublic.h" /* Files */ +#include "H5Ipublic.h" /* IDs */ +#include "H5Lpublic.h" /* Links */ +#include "H5Opublic.h" /* Objects */ +#include "H5Rpublic.h" /* References */ +#include "H5VLpublic.h" /* Virtual Object Layer */ + + +/*****************/ +/* Public Macros */ +/*****************/ + +/* Capability flags for connector */ +#define H5VL_CAP_FLAG_NONE 0 /* No special connector capabilities */ +#define H5VL_CAP_FLAG_THREADSAFE 0x01 /* Connector is threadsafe */ + + +/*******************/ +/* Public Typedefs */ +/*******************/ + +/* types for attribute GET callback */ +typedef enum H5VL_attr_get_t { + H5VL_ATTR_GET_ACPL, /* creation property list */ + H5VL_ATTR_GET_INFO, /* info */ + H5VL_ATTR_GET_NAME, /* access property list */ + H5VL_ATTR_GET_SPACE, /* dataspace */ + H5VL_ATTR_GET_STORAGE_SIZE, /* storage size */ + H5VL_ATTR_GET_TYPE /* datatype */ +} H5VL_attr_get_t; + +/* types for attribute SPECFIC callback */ +typedef enum H5VL_attr_specific_t { + H5VL_ATTR_DELETE, /* H5Adelete(_by_name/idx) */ + H5VL_ATTR_EXISTS, /* H5Aexists(_by_name) */ + H5VL_ATTR_ITER, /* H5Aiterate(_by_name) */ + H5VL_ATTR_RENAME /* H5Arename(_by_name) */ +} H5VL_attr_specific_t; + +/* types for dataset GET callback */ +typedef enum H5VL_dataset_get_t { + H5VL_DATASET_GET_DAPL, /* access property list */ + H5VL_DATASET_GET_DCPL, /* creation property list */ + H5VL_DATASET_GET_OFFSET, /* offset */ + H5VL_DATASET_GET_SPACE, /* dataspace */ + H5VL_DATASET_GET_SPACE_STATUS, /* space status */ + H5VL_DATASET_GET_STORAGE_SIZE, /* storage size */ + H5VL_DATASET_GET_TYPE /* datatype */ +} H5VL_dataset_get_t; + +/* types for dataset SPECFIC callback */ +typedef enum H5VL_dataset_specific_t { + H5VL_DATASET_SET_EXTENT, /* H5Dset_extent */ + H5VL_DATASET_FLUSH, /* H5Dflush */ + H5VL_DATASET_REFRESH /* H5Drefresh */ +} H5VL_dataset_specific_t; + +/* types for datatype GET callback */ +typedef enum H5VL_datatype_get_t { + H5VL_DATATYPE_GET_BINARY, /* get serialized form of transient type */ + H5VL_DATATYPE_GET_TCPL /* datatype creation property list */ +} H5VL_datatype_get_t; + +/* types for datatype SPECFIC callback */ +typedef enum H5VL_datatype_specific_t { + H5VL_DATATYPE_FLUSH, + H5VL_DATATYPE_REFRESH +} H5VL_datatype_specific_t; + +/* types for file GET callback */ +typedef enum H5VL_file_get_t { + H5VL_FILE_GET_FAPL, /* file access property list */ + H5VL_FILE_GET_FCPL, /* file creation property list */ + H5VL_FILE_GET_INTENT, /* file intent */ + H5VL_FILE_GET_FILENO, /* file number */ + H5VL_FILE_GET_NAME, /* file name */ + H5VL_FILE_GET_OBJ_COUNT, /* object count in file */ + H5VL_FILE_GET_OBJ_IDS /* object ids in file */ +} H5VL_file_get_t; + +/* types for file SPECIFIC callback */ +typedef enum H5VL_file_specific_t { + H5VL_FILE_FLUSH, /* Flush file */ + H5VL_FILE_REOPEN, /* Reopen the file */ + H5VL_FILE_MOUNT, /* Mount a file */ + H5VL_FILE_UNMOUNT, /* Unmount a file */ + H5VL_FILE_IS_ACCESSIBLE /* Check if a file is accessible */ +} H5VL_file_specific_t; + +/* types for group GET callback */ +typedef enum H5VL_group_get_t { + H5VL_GROUP_GET_GCPL, /* group creation property list */ + H5VL_GROUP_GET_INFO /* group info */ +} H5VL_group_get_t; + +/* types for group SPECFIC callback */ +typedef enum H5VL_group_specific_t { + H5VL_GROUP_FLUSH, + H5VL_GROUP_REFRESH +} H5VL_group_specific_t; + +/* link create types for VOL */ +typedef enum H5VL_link_create_type_t { + H5VL_LINK_CREATE_HARD, + H5VL_LINK_CREATE_SOFT, + H5VL_LINK_CREATE_UD +} H5VL_link_create_type_t; + +/* types for link GET callback */ +typedef enum H5VL_link_get_t { + H5VL_LINK_GET_INFO, /* link info */ + H5VL_LINK_GET_NAME, /* link name */ + H5VL_LINK_GET_VAL /* link value */ +} H5VL_link_get_t; + +/* types for link SPECIFIC callback */ +typedef enum H5VL_link_specific_t { + H5VL_LINK_DELETE, /* H5Ldelete(_by_idx) */ + H5VL_LINK_EXISTS, /* link existence */ + H5VL_LINK_ITER /* H5Literate/visit(_by_name) */ +} H5VL_link_specific_t; + +/* types for object GET callback */ +typedef enum H5VL_object_get_t { + H5VL_REF_GET_NAME, /* object name, for reference */ + H5VL_REF_GET_REGION, /* dataspace of region */ + H5VL_REF_GET_TYPE, /* type of object */ + H5VL_OBJECT_GET_NAME /* object name */ +} H5VL_object_get_t; + +/* types for object SPECIFIC callback */ +typedef enum H5VL_object_specific_t { + H5VL_OBJECT_CHANGE_REF_COUNT, /* H5Oincr/decr_refcount */ + H5VL_OBJECT_EXISTS, /* H5Oexists_by_name */ + H5VL_OBJECT_VISIT, /* H5Ovisit(_by_name) */ + H5VL_REF_CREATE, /* H5Rcreate */ + H5VL_OBJECT_FLUSH, /* H5{D|G|O|T}flush */ + H5VL_OBJECT_REFRESH /* H5{D|G|O|T}refresh */ +} H5VL_object_specific_t; + +/* types for async request SPECIFIC callback */ +typedef enum H5VL_request_specific_t { + H5VL_REQUEST_WAITANY, /* Wait until any request completes */ + H5VL_REQUEST_WAITSOME, /* Wait until at least one requesst completes */ + H5VL_REQUEST_WAITALL /* Wait until all requests complete */ +} H5VL_request_specific_t; + +/* types for different ways that objects are located in an HDF5 container */ +typedef enum H5VL_loc_type_t { + H5VL_OBJECT_BY_SELF, + H5VL_OBJECT_BY_NAME, + H5VL_OBJECT_BY_IDX, + H5VL_OBJECT_BY_ADDR, + H5VL_OBJECT_BY_REF +} H5VL_loc_type_t; + +struct H5VL_loc_by_name { + const char *name; + hid_t lapl_id; +}; + +struct H5VL_loc_by_idx { + const char *name; + H5_index_t idx_type; + H5_iter_order_t order; + hsize_t n; + hid_t lapl_id; +}; + +struct H5VL_loc_by_addr { + haddr_t addr; +}; + +struct H5VL_loc_by_ref { + H5R_type_t ref_type; + const void *_ref; + hid_t lapl_id; +}; + +/* Structure to hold parameters for object locations. + * either: BY_ADDR, BY_ID, BY_NAME, BY_IDX, BY_REF + * + * Note: Leave loc_by_addr as the first union member so we + * can perform the simplest initialization of the struct + * without raising warnings. + */ +typedef struct H5VL_loc_params_t { + H5I_type_t obj_type; + H5VL_loc_type_t type; + union{ + struct H5VL_loc_by_addr loc_by_addr; + struct H5VL_loc_by_name loc_by_name; + struct H5VL_loc_by_idx loc_by_idx; + struct H5VL_loc_by_ref loc_by_ref; + } loc_data; +} H5VL_loc_params_t; + +/* VOL connector info fields & callbacks */ +typedef struct H5VL_info_class_t { + size_t size; /* Size of the VOL info */ + void * (*copy)(const void *info); /* Callback to create a copy of the VOL info */ + herr_t (*cmp)(int *cmp_value, const void *info1, const void *info2); /* Callback to compare VOL info */ + herr_t (*free)(void *info); /* Callback to release a VOL info */ + herr_t (*to_str)(const void *info, char **str); /* Callback to serialize connector's info into a string */ + herr_t (*from_str)(const char *str, void **info); /* Callback to deserialize a string into connector's info */ +} H5VL_info_class_t; + +/* VOL object wrap / retrieval callbacks */ +/* (These only need to be implemented by "pass through" VOL connectors) */ +typedef struct H5VL_wrap_class_t { + void * (*get_object)(const void *obj); /* Callback to retrieve underlying object */ + herr_t (*get_wrap_ctx)(const void *obj, void **wrap_ctx); /* Callback to retrieve the object wrapping context for the connector */ + void * (*wrap_object)(void *obj, H5I_type_t obj_type, void *wrap_ctx); /* Callback to wrap a library object */ + void * (*unwrap_object)(void *obj); /* Callback to unwrap a library object */ + herr_t (*free_wrap_ctx)(void *wrap_ctx); /* Callback to release the object wrapping context for the connector */ +} H5VL_wrap_class_t; + +/* H5A routines */ +typedef struct H5VL_attr_class_t { + void *(*create)(void *obj, const H5VL_loc_params_t *loc_params, const char *attr_name, + hid_t type_id, hid_t space_id, hid_t acpl_id, hid_t aapl_id, + hid_t dxpl_id, void **req); + void *(*open)(void *obj, const H5VL_loc_params_t *loc_params, const char *attr_name, + hid_t aapl_id, hid_t dxpl_id, void **req); + herr_t (*read)(void *attr, hid_t mem_type_id, void *buf, hid_t dxpl_id, void **req); + herr_t (*write)(void *attr, hid_t mem_type_id, const void *buf, hid_t dxpl_id, void **req); + herr_t (*get)(void *obj, H5VL_attr_get_t get_type, hid_t dxpl_id, void **req, va_list arguments); + herr_t (*specific)(void *obj, const H5VL_loc_params_t *loc_params, H5VL_attr_specific_t specific_type, + hid_t dxpl_id, void **req, va_list arguments); + herr_t (*optional)(void *obj, hid_t dxpl_id, void **req, va_list arguments); + herr_t (*close) (void *attr, hid_t dxpl_id, void **req); +} H5VL_attr_class_t; + +/* H5D routines */ +typedef struct H5VL_dataset_class_t { + void *(*create)(void *obj, const H5VL_loc_params_t *loc_params, const char *name, + hid_t lcpl_id, hid_t type_id, hid_t space_id, hid_t dcpl_id, + hid_t dapl_id, hid_t dxpl_id, void **req); + void *(*open)(void *obj, const H5VL_loc_params_t *loc_params, const char *name, + hid_t dapl_id, hid_t dxpl_id, void **req); + herr_t (*read)(void *dset, hid_t mem_type_id, hid_t mem_space_id, hid_t file_space_id, + hid_t xfer_plist_id, void * buf, void **req); + herr_t (*write)(void *dset, hid_t mem_type_id, hid_t mem_space_id, hid_t file_space_id, + hid_t xfer_plist_id, const void * buf, void **req); + herr_t (*get)(void *obj, H5VL_dataset_get_t get_type, hid_t dxpl_id, void **req, va_list arguments); + herr_t (*specific)(void *obj, H5VL_dataset_specific_t specific_type, + hid_t dxpl_id, void **req, va_list arguments); + herr_t (*optional)(void *obj, hid_t dxpl_id, void **req, va_list arguments); + herr_t (*close) (void *dset, hid_t dxpl_id, void **req); +} H5VL_dataset_class_t; + +/* H5T routines*/ +typedef struct H5VL_datatype_class_t { + void *(*commit)(void *obj, const H5VL_loc_params_t *loc_params, const char *name, hid_t type_id, + hid_t lcpl_id, hid_t tcpl_id, hid_t tapl_id, hid_t dxpl_id, void **req); + void *(*open)(void *obj, const H5VL_loc_params_t *loc_params, const char * name, + hid_t tapl_id, hid_t dxpl_id, void **req); + herr_t (*get) (void *obj, H5VL_datatype_get_t get_type, hid_t dxpl_id, void **req, va_list arguments); + herr_t (*specific)(void *obj, H5VL_datatype_specific_t specific_type, + hid_t dxpl_id, void **req, va_list arguments); + herr_t (*optional)(void *obj, hid_t dxpl_id, void **req, va_list arguments); + herr_t (*close) (void *dt, hid_t dxpl_id, void **req); +} H5VL_datatype_class_t; + +/* H5F routines */ +typedef struct H5VL_file_class_t { + void *(*create)(const char *name, unsigned flags, hid_t fcpl_id, + hid_t fapl_id, hid_t dxpl_id, void **req); + void *(*open)(const char *name, unsigned flags, hid_t fapl_id, hid_t dxpl_id, void **req); + herr_t (*get)(void *obj, H5VL_file_get_t get_type, hid_t dxpl_id, void **req, va_list arguments); + herr_t (*specific)(void *obj, H5VL_file_specific_t specific_type, + hid_t dxpl_id, void **req, va_list arguments); + herr_t (*optional)(void *obj, hid_t dxpl_id, void **req, va_list arguments); + herr_t (*close) (void *file, hid_t dxpl_id, void **req); +} H5VL_file_class_t; + +/* H5G routines */ +typedef struct H5VL_group_class_t { + void *(*create)(void *obj, const H5VL_loc_params_t *loc_params, const char *name, + hid_t lcpl_id, hid_t gcpl_id, hid_t gapl_id, hid_t dxpl_id, void **req); + void *(*open)(void *obj, const H5VL_loc_params_t *loc_params, const char *name, + hid_t gapl_id, hid_t dxpl_id, void **req); + herr_t (*get)(void *obj, H5VL_group_get_t get_type, hid_t dxpl_id, void **req, va_list arguments); + herr_t (*specific)(void *obj, H5VL_group_specific_t specific_type, + hid_t dxpl_id, void **req, va_list arguments); + herr_t (*optional)(void *obj, hid_t dxpl_id, void **req, va_list arguments); + herr_t (*close) (void *grp, hid_t dxpl_id, void **req); +} H5VL_group_class_t; + +/* H5L routines */ +typedef struct H5VL_link_class_t { + herr_t (*create)(H5VL_link_create_type_t create_type, void *obj, const H5VL_loc_params_t *loc_params, + hid_t lcpl_id, hid_t lapl_id, hid_t dxpl_id, void **req, va_list argumenmts); + herr_t (*copy)(void *src_obj, const H5VL_loc_params_t *loc_params1, + void *dst_obj, const H5VL_loc_params_t *loc_params2, + hid_t lcpl, hid_t lapl, hid_t dxpl_id, void **req); + herr_t (*move)(void *src_obj, const H5VL_loc_params_t *loc_params1, + void *dst_obj, const H5VL_loc_params_t *loc_params2, + hid_t lcpl, hid_t lapl, hid_t dxpl_id, void **req); + herr_t (*get)(void *obj, const H5VL_loc_params_t *loc_params, H5VL_link_get_t get_type, + hid_t dxpl_id, void **req, va_list arguments); + herr_t (*specific)(void *obj, const H5VL_loc_params_t *loc_params, H5VL_link_specific_t specific_type, + hid_t dxpl_id, void **req, va_list arguments); + herr_t (*optional)(void *obj, hid_t dxpl_id, void **req, va_list arguments); +} H5VL_link_class_t; + +/* H5O routines */ +typedef struct H5VL_object_class_t { + void *(*open)(void *obj, const H5VL_loc_params_t *loc_params, H5I_type_t *opened_type, + hid_t dxpl_id, void **req); + herr_t (*copy)(void *src_obj, const H5VL_loc_params_t *loc_params1, const char *src_name, + void *dst_obj, const H5VL_loc_params_t *loc_params2, const char *dst_name, + hid_t ocpypl_id, hid_t lcpl_id, hid_t dxpl_id, void **req); + herr_t (*get)(void *obj, const H5VL_loc_params_t *loc_params, H5VL_object_get_t get_type, + hid_t dxpl_id, void **req, va_list arguments); + herr_t (*specific)(void *obj, const H5VL_loc_params_t *loc_params, H5VL_object_specific_t specific_type, + hid_t dxpl_id, void **req, va_list arguments); + herr_t (*optional)(void *obj, hid_t dxpl_id, void **req, va_list arguments); +} H5VL_object_class_t; + +/* Asynchronous request 'notify' callback */ +typedef herr_t (*H5VL_request_notify_t)(void *ctx, H5ES_status_t status); + +/* Async request operation routines */ +typedef struct H5VL_request_class_t { + herr_t (*wait)(void *req, uint64_t timeout, H5ES_status_t *status); + herr_t (*notify)(void *req, H5VL_request_notify_t cb, void *ctx); + herr_t (*cancel)(void *req); + herr_t (*specific)(void *req, H5VL_request_specific_t specific_type, va_list arguments); + herr_t (*optional)(void *req, va_list arguments); + herr_t (*free)(void *req); +} H5VL_request_class_t; + +/* + * VOL connector identifiers. Values 0 through 255 are for connectors defined + * by the HDF5 library. Values 256 through 511 are available for testing new + * filters. Subsequent values should be obtained from the HDF5 development + * team at help@hdfgroup.org. + */ +typedef int H5VL_class_value_t; + +/* Class information for each VOL connector */ +typedef struct H5VL_class_t { + /* Overall connector fields & callbacks */ + unsigned int version; /* VOL connector class struct version # */ + H5VL_class_value_t value; /* Value to identify connector */ + const char *name; /* Connector name (MUST be unique!) */ + unsigned cap_flags; /* Capability flags for connector */ + herr_t (*initialize)(hid_t vipl_id); /* Connector initialization callback */ + herr_t (*terminate)(void); /* Connector termination callback */ + + /* VOL framework */ + H5VL_info_class_t info_cls; /* VOL info fields & callbacks */ + H5VL_wrap_class_t wrap_cls; /* VOL object wrap / retrieval callbacks */ + + /* Data Model */ + H5VL_attr_class_t attr_cls; /* Attribute (H5A*) class callbacks */ + H5VL_dataset_class_t dataset_cls; /* Dataset (H5D*) class callbacks */ + H5VL_datatype_class_t datatype_cls; /* Datatype (H5T*) class callbacks */ + H5VL_file_class_t file_cls; /* File (H5F*) class callbacks */ + H5VL_group_class_t group_cls; /* Group (H5G*) class callbacks */ + H5VL_link_class_t link_cls; /* Link (H5L*) class callbacks */ + H5VL_object_class_t object_cls; /* Object (H5O*) class callbacks */ + + /* Services */ + H5VL_request_class_t request_cls; /* Asynchronous request class callbacks */ + + /* Catch-all */ + herr_t (*optional)(void *obj, hid_t dxpl_id, void **req, va_list arguments); /* Optional callback */ +} H5VL_class_t; + + +/********************/ +/* Public Variables */ +/********************/ + +/*********************/ +/* Public Prototypes */ +/*********************/ + +#ifdef __cplusplus +extern "C" { +#endif + +/* Helper routines for VOL connector authors */ +H5_DLL void *H5VLobject(hid_t obj_id); + +/* Public wrappers for generic callbacks */ +H5_DLL herr_t H5VLinitialize(hid_t connector_id, hid_t vipl_id); +H5_DLL herr_t H5VLterminate(hid_t connector_id); +H5_DLL herr_t H5VLget_cap_flags(hid_t connector_id, unsigned *cap_flags); +H5_DLL herr_t H5VLget_value(hid_t connector_id, H5VL_class_value_t *conn_value); + +/* Public wrappers for info fields and callbacks */ +H5_DLL herr_t H5VLcopy_connector_info(hid_t connector_id, void **dst_vol_info, void *src_vol_info); +H5_DLL herr_t H5VLcmp_connector_info(int *cmp, hid_t connector_id, const void *info1, + const void *info2); +H5_DLL herr_t H5VLfree_connector_info(hid_t connector_id, void *vol_info); +H5_DLL herr_t H5VLconnector_info_to_str(const void *info, hid_t connector_id, char **str); +H5_DLL herr_t H5VLconnector_str_to_info(const char *str, hid_t connector_id, void **info); + +/* Public wrappers for attribute callbacks */ +H5_DLL void *H5VLattr_create(void *obj, const H5VL_loc_params_t *loc_params, hid_t connector_id, const char *attr_name, hid_t type_id, hid_t space_id, hid_t acpl_id, hid_t aapl_id, hid_t dxpl_id, void **req); +H5_DLL void *H5VLattr_open(void *obj, const H5VL_loc_params_t *loc_params, hid_t connector_id, const char *name, hid_t aapl_id, hid_t dxpl_id, void **req); +H5_DLL herr_t H5VLattr_read(void *attr, hid_t connector_id, hid_t dtype_id, void *buf, hid_t dxpl_id, void **req); +H5_DLL herr_t H5VLattr_write(void *attr, hid_t connector_id, hid_t dtype_id, const void *buf, hid_t dxpl_id, void **req); +H5_DLL herr_t H5VLattr_get(void *obj, hid_t connector_id, H5VL_attr_get_t get_type, hid_t dxpl_id, void **req, va_list arguments); +H5_DLL herr_t H5VLattr_specific(void *obj, const H5VL_loc_params_t *loc_params, hid_t connector_id, H5VL_attr_specific_t specific_type, hid_t dxpl_id, void **req, va_list arguments); +H5_DLL herr_t H5VLattr_optional(void *obj, hid_t connector_id, hid_t dxpl_id, void **req, va_list arguments); +H5_DLL herr_t H5VLattr_close(void *attr, hid_t connector_id, hid_t dxpl_id, void **req); + +/* Public wrappers for dataset callbacks */ +H5_DLL void *H5VLdataset_create(void *obj, const H5VL_loc_params_t *loc_params, hid_t connector_id, const char *name, hid_t lcpl_id, hid_t type_id, hid_t space_id, hid_t dcpl_id, hid_t dapl_id, hid_t dxpl_id, void **req); +H5_DLL void *H5VLdataset_open(void *obj, const H5VL_loc_params_t *loc_params, hid_t connector_id, const char *name, hid_t dapl_id, hid_t dxpl_id, void **req); +H5_DLL herr_t H5VLdataset_read(void *dset, hid_t connector_id, hid_t mem_type_id, hid_t mem_space_id, hid_t file_space_id, hid_t plist_id, void *buf, void **req); +H5_DLL herr_t H5VLdataset_write(void *dset, hid_t connector_id, hid_t mem_type_id, hid_t mem_space_id, hid_t file_space_id, hid_t plist_id, const void *buf, void **req); +H5_DLL herr_t H5VLdataset_get(void *dset, hid_t connector_id, H5VL_dataset_get_t get_type, hid_t dxpl_id, void **req, va_list arguments); +H5_DLL herr_t H5VLdataset_specific(void *obj, hid_t connector_id, H5VL_dataset_specific_t specific_type, hid_t dxpl_id, void **req, va_list arguments); +H5_DLL herr_t H5VLdataset_optional(void *obj, hid_t connector_id, hid_t dxpl_id, void **req, va_list arguments); +H5_DLL herr_t H5VLdataset_close(void *dset, hid_t connector_id, hid_t dxpl_id, void **req); + +/* Public wrappers for file callbacks */ +H5_DLL void *H5VLfile_create(const char *name, unsigned flags, hid_t fcpl_id, hid_t fapl_id, hid_t dxpl_id, void **req); +H5_DLL void *H5VLfile_open(const char *name, unsigned flags, hid_t fapl_id, hid_t dxpl_id, void **req); +H5_DLL herr_t H5VLfile_get(void *file, hid_t connector_id, H5VL_file_get_t get_type, hid_t dxpl_id, void **req, va_list arguments); +H5_DLL herr_t H5VLfile_specific(void *obj, hid_t connector_id, H5VL_file_specific_t specific_type, hid_t dxpl_id, void **req, va_list arguments); +H5_DLL herr_t H5VLfile_optional(void *obj, hid_t connector_id, hid_t dxpl_id, void **req, va_list arguments); +H5_DLL herr_t H5VLfile_close(void *file, hid_t connector_id, hid_t dxpl_id, void **req); + +/* Public wrappers for group callbacks */ +H5_DLL void *H5VLgroup_create(void *obj, const H5VL_loc_params_t *loc_params, hid_t connector_id, const char *name, hid_t lcpl_id, hid_t gcpl_id, hid_t gapl_id, hid_t dxpl_id, void **req); +H5_DLL void *H5VLgroup_open(void *obj, const H5VL_loc_params_t *loc_params, hid_t connector_id, const char *name, hid_t gapl_id, hid_t dxpl_id, void **req); +H5_DLL herr_t H5VLgroup_get(void *obj, hid_t connector_id, H5VL_group_get_t get_type, hid_t dxpl_id, void **req, va_list arguments); +H5_DLL herr_t H5VLgroup_specific(void *obj, hid_t connector_id, H5VL_group_specific_t specific_type, hid_t dxpl_id, void **req, va_list arguments); +H5_DLL herr_t H5VLgroup_optional(void *obj, hid_t connector_id, hid_t dxpl_id, void **req, va_list arguments); +H5_DLL herr_t H5VLgroup_close(void *grp, hid_t connector_id, hid_t dxpl_id, void **req); + +/* Public wrappers for link callbacks */ +H5_DLL herr_t H5VLlink_create(H5VL_link_create_type_t create_type, void *obj, const H5VL_loc_params_t *loc_params, hid_t connector_id, hid_t lcpl_id, hid_t lapl_id, hid_t dxpl_id, void **req, va_list arguments); +H5_DLL herr_t H5VLlink_copy(void *src_obj, const H5VL_loc_params_t *loc_params1, + void *dst_obj, const H5VL_loc_params_t *loc_params2, hid_t connector_id, + hid_t lcpl_id, hid_t lapl_id, hid_t dxpl_id, void **req); +H5_DLL herr_t H5VLlink_move(void *src_obj, const H5VL_loc_params_t *loc_params1, + void *dst_obj, const H5VL_loc_params_t *loc_params2, hid_t connector_id, + hid_t lcpl_id, hid_t lapl_id, hid_t dxpl_id, void **req); +H5_DLL herr_t H5VLlink_get(void *obj, const H5VL_loc_params_t *loc_params, hid_t connector_id, H5VL_link_get_t get_type, hid_t dxpl_id, void **req, va_list arguments); +H5_DLL herr_t H5VLlink_specific(void *obj, const H5VL_loc_params_t *loc_params, hid_t connector_id, H5VL_link_specific_t specific_type, hid_t dxpl_id, void **req, va_list arguments); +H5_DLL herr_t H5VLlink_optional(void *obj, hid_t connector_id, hid_t dxpl_id, void **req, va_list arguments); + +/* Public wrappers for object callbacks */ +H5_DLL void *H5VLobject_open(void *obj, const H5VL_loc_params_t *loc_params, hid_t connector_id, H5I_type_t *opened_type, hid_t dxpl_id, void **req); +H5_DLL herr_t H5VLobject_copy(void *src_obj, const H5VL_loc_params_t *loc_params1, const char *src_name, + void *dst_obj, const H5VL_loc_params_t *loc_params2, const char *dst_name, + hid_t connector_id, hid_t ocpypl_id, hid_t lcpl_id, hid_t dxpl_id, void **req); +H5_DLL herr_t H5VLobject_get(void *obj, const H5VL_loc_params_t *loc_params, hid_t connector_id, H5VL_object_get_t get_type, hid_t dxpl_id, void **req, va_list arguments); +H5_DLL herr_t H5VLobject_specific(void *obj, const H5VL_loc_params_t *loc_params, hid_t connector_id, H5VL_object_specific_t specific_type, hid_t dxpl_id, void **req, va_list arguments); +H5_DLL herr_t H5VLobject_optional(void *obj, hid_t connector_id, hid_t dxpl_id, void **req, va_list arguments); + +/* Public wrappers for named datatype callbacks */ +H5_DLL void *H5VLdatatype_commit(void *obj, const H5VL_loc_params_t *loc_params, hid_t connector_id, const char *name, hid_t type_id, hid_t lcpl_id, hid_t tcpl_id, hid_t tapl_id, hid_t dxpl_id, void **req); +H5_DLL void *H5VLdatatype_open(void *obj, const H5VL_loc_params_t *loc_params, hid_t connector_id, const char *name, hid_t tapl_id, hid_t dxpl_id, void **req); +H5_DLL herr_t H5VLdatatype_get(void *dt, hid_t connector_id, H5VL_datatype_get_t get_type, hid_t dxpl_id, void **req, va_list arguments); +H5_DLL herr_t H5VLdatatype_specific(void *obj, hid_t connector_id, H5VL_datatype_specific_t specific_type, hid_t dxpl_id, void **req, va_list arguments); +H5_DLL herr_t H5VLdatatype_optional(void *obj, hid_t connector_id, hid_t dxpl_id, void **req, va_list arguments); +H5_DLL herr_t H5VLdatatype_close(void *dt, hid_t connector_id, hid_t dxpl_id, void **req); + +/* Public wrappers for asynchronous request callbacks */ +H5_DLL herr_t H5VLrequest_wait(void *req, hid_t connector_id, uint64_t timeout, H5ES_status_t *status); +H5_DLL herr_t H5VLrequest_notify(void *req, hid_t connector_id, H5VL_request_notify_t cb, void *ctx); +H5_DLL herr_t H5VLrequest_cancel(void *req, hid_t connector_id); +H5_DLL herr_t H5VLrequest_specific(void *req, hid_t connector_id, H5VL_request_specific_t specific_type, va_list arguments); +H5_DLL herr_t H5VLrequest_optional(void *req, hid_t connector_id, va_list arguments); +H5_DLL herr_t H5VLrequest_free(void *req, hid_t connector_id); + +#ifdef __cplusplus +} +#endif + +#endif /* _H5VLconnector_H */ + diff --git a/src/H5VLconnector_passthru.h b/src/H5VLconnector_passthru.h new file mode 100644 index 0000000..5083cb4 --- /dev/null +++ b/src/H5VLconnector_passthru.h @@ -0,0 +1,80 @@ +/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * + * Copyright by The HDF Group. * + * 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 COPYING file, which can be found at the root of the source code * + * distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases. * + * If you do not have access to either file, you may request a copy from * + * help@hdfgroup.org. * + * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ + +/* + * This file contains public declarations for authoring VOL connectors + * which act as "passthrough" connectors that forward their API calls to + * an underlying connector. + * + * An example of this might be a logging connector, which creates log messages + * and then passes the call on to an underlying VOL connector. + * + * The functionality required to implement such a connector is specialized + * and non-trivial so it has been split into this header in an effort to keep + * the H5VLpublic_dev.h header easier to understand. + */ + +#ifndef _H5VLconnector_passthru_H +#define _H5VLconnector_passthru_H + +/* Public headers needed by this file */ +#include "H5public.h" /* Generic Functions */ +#include "H5Ipublic.h" /* IDs */ +#include "H5VLpublic.h" /* Virtual Object Layer */ + +/* Semi-public headers mainly for VOL connector authors */ +#include "H5VLconnector.h" + + +/*****************/ +/* Public Macros */ +/*****************/ + +/*******************/ +/* Public Typedefs */ +/*******************/ + +/********************/ +/* Public Variables */ +/********************/ + +/*********************/ +/* Public Prototypes */ +/*********************/ + +#ifdef __cplusplus +extern "C" { +#endif + +/* Helper routines for VOL connector authors */ +H5_DLL herr_t H5VLcmp_connector_cls(int *cmp, hid_t connector_id1, hid_t connector_id2); +H5_DLL hid_t H5VLwrap_register(void *obj, H5I_type_t type); +H5_DLL herr_t H5VLretrieve_lib_state(void **state); +H5_DLL herr_t H5VLrestore_lib_state(const void *state); +H5_DLL herr_t H5VLreset_lib_state(void); +H5_DLL herr_t H5VLfree_lib_state(void *state); + +/* Pass-through callbacks */ +H5_DLL void *H5VLget_object(void *obj, hid_t connector_id); +H5_DLL herr_t H5VLget_wrap_ctx(void *obj, hid_t connector_id, void **wrap_ctx); +H5_DLL void *H5VLwrap_object(void *obj, H5I_type_t obj_type, hid_t connector_id, + void *wrap_ctx); +H5_DLL void *H5VLunwrap_object(void *obj, hid_t connector_id); +H5_DLL herr_t H5VLfree_wrap_ctx(void *wrap_ctx, hid_t connector_id); + + +#ifdef __cplusplus +} +#endif + +#endif /* _H5VLconnector_passthru_H */ + diff --git a/src/H5VLpassthru.c b/src/H5VLpassthru.c index ef92ddb..f0672b2 100644 --- a/src/H5VLpassthru.c +++ b/src/H5VLpassthru.c @@ -29,13 +29,17 @@ /* Header files needed */ -/* (Public HDF5 and standard C / POSIX only) */ +/* Do NOT include private HDF5 files here! */ #include <assert.h> #include <stdarg.h> #include <stdio.h> #include <stdlib.h> #include <string.h> + +/* Public HDF5 file */ #include "hdf5.h" + +/* This connector's header */ #include "H5VLpassthru.h" diff --git a/src/H5VLpublic.h b/src/H5VLpublic.h index ebe424a..326e65e 100644 --- a/src/H5VLpublic.h +++ b/src/H5VLpublic.h @@ -19,387 +19,29 @@ /* Public headers needed by this file */ #include "H5public.h" /* Generic Functions */ -#include "H5Apublic.h" /* Attributes */ -#include "H5ESpublic.h" /* Event Stack */ -#include "H5Fpublic.h" /* Files */ -#include "H5Ipublic.h" /* IDs */ -#include "H5Lpublic.h" /* Links */ -#include "H5Opublic.h" /* Objects */ -#include "H5Rpublic.h" /* References */ +#include "H5Ipublic.h" /* IDs */ + +/* Semi-public headers mainly for VOL connector authors */ +#include "H5VLconnector.h" +#include "H5VLconnector_passthru.h" /*****************/ /* Public Macros */ /*****************/ -/* Default VOL connector value */ -#define H5VL_VOL_DEFAULT 0 - - -/*******************/ -/* Public Typedefs */ -/*******************/ - -/* types for attribute GET callback */ -typedef enum H5VL_attr_get_t { - H5VL_ATTR_GET_ACPL, /* creation property list */ - H5VL_ATTR_GET_INFO, /* info */ - H5VL_ATTR_GET_NAME, /* access property list */ - H5VL_ATTR_GET_SPACE, /* dataspace */ - H5VL_ATTR_GET_STORAGE_SIZE, /* storage size */ - H5VL_ATTR_GET_TYPE /* datatype */ -} H5VL_attr_get_t; - -/* types for attribute SPECFIC callback */ -typedef enum H5VL_attr_specific_t { - H5VL_ATTR_DELETE, /* H5Adelete(_by_name/idx) */ - H5VL_ATTR_EXISTS, /* H5Aexists(_by_name) */ - H5VL_ATTR_ITER, /* H5Aiterate(_by_name) */ - H5VL_ATTR_RENAME /* H5Arename(_by_name) */ -} H5VL_attr_specific_t; - -/* types for dataset GET callback */ -typedef enum H5VL_dataset_get_t { - H5VL_DATASET_GET_DAPL, /* access property list */ - H5VL_DATASET_GET_DCPL, /* creation property list */ - H5VL_DATASET_GET_OFFSET, /* offset */ - H5VL_DATASET_GET_SPACE, /* dataspace */ - H5VL_DATASET_GET_SPACE_STATUS, /* space status */ - H5VL_DATASET_GET_STORAGE_SIZE, /* storage size */ - H5VL_DATASET_GET_TYPE /* datatype */ -} H5VL_dataset_get_t; - -/* types for dataset SPECFIC callback */ -typedef enum H5VL_dataset_specific_t { - H5VL_DATASET_SET_EXTENT, /* H5Dset_extent */ - H5VL_DATASET_FLUSH, /* H5Dflush */ - H5VL_DATASET_REFRESH /* H5Drefresh */ -} H5VL_dataset_specific_t; - -/* types for datatype GET callback */ -typedef enum H5VL_datatype_get_t { - H5VL_DATATYPE_GET_BINARY, /* get serialized form of transient type */ - H5VL_DATATYPE_GET_TCPL /* datatype creation property list */ -} H5VL_datatype_get_t; - -/* types for datatype SPECFIC callback */ -typedef enum H5VL_datatype_specific_t { - H5VL_DATATYPE_FLUSH, - H5VL_DATATYPE_REFRESH -} H5VL_datatype_specific_t; - -/* types for file GET callback */ -typedef enum H5VL_file_get_t { - H5VL_FILE_GET_FAPL, /* file access property list */ - H5VL_FILE_GET_FCPL, /* file creation property list */ - H5VL_FILE_GET_INTENT, /* file intent */ - H5VL_FILE_GET_FILENO, /* file number */ - H5VL_FILE_GET_NAME, /* file name */ - H5VL_FILE_GET_OBJ_COUNT, /* object count in file */ - H5VL_FILE_GET_OBJ_IDS /* object ids in file */ -} H5VL_file_get_t; - -/* types for file SPECIFIC callback */ -typedef enum H5VL_file_specific_t { - H5VL_FILE_FLUSH, /* Flush file */ - H5VL_FILE_REOPEN, /* Reopen the file */ - H5VL_FILE_MOUNT, /* Mount a file */ - H5VL_FILE_UNMOUNT, /* Unmount a file */ - H5VL_FILE_IS_ACCESSIBLE /* Check if a file is accessible */ -} H5VL_file_specific_t; - -/* types for group GET callback */ -typedef enum H5VL_group_get_t { - H5VL_GROUP_GET_GCPL, /* group creation property list */ - H5VL_GROUP_GET_INFO /* group info */ -} H5VL_group_get_t; - -/* types for group SPECFIC callback */ -typedef enum H5VL_group_specific_t { - H5VL_GROUP_FLUSH, - H5VL_GROUP_REFRESH -} H5VL_group_specific_t; - -/* link create types for VOL */ -typedef enum H5VL_link_create_type_t { - H5VL_LINK_CREATE_HARD, - H5VL_LINK_CREATE_SOFT, - H5VL_LINK_CREATE_UD -} H5VL_link_create_type_t; - -/* types for link GET callback */ -typedef enum H5VL_link_get_t { - H5VL_LINK_GET_INFO, /* link info */ - H5VL_LINK_GET_NAME, /* link name */ - H5VL_LINK_GET_VAL /* link value */ -} H5VL_link_get_t; - -/* types for link SPECIFIC callback */ -typedef enum H5VL_link_specific_t { - H5VL_LINK_DELETE, /* H5Ldelete(_by_idx) */ - H5VL_LINK_EXISTS, /* link existence */ - H5VL_LINK_ITER /* H5Literate/visit(_by_name) */ -} H5VL_link_specific_t; - -/* types for object GET callback */ -typedef enum H5VL_object_get_t { - H5VL_REF_GET_NAME, /* object name, for reference */ - H5VL_REF_GET_REGION, /* dataspace of region */ - H5VL_REF_GET_TYPE, /* type of object */ - H5VL_OBJECT_GET_NAME /* object name */ -} H5VL_object_get_t; - -/* types for object SPECIFIC callback */ -typedef enum H5VL_object_specific_t { - H5VL_OBJECT_CHANGE_REF_COUNT, /* H5Oincr/decr_refcount */ - H5VL_OBJECT_EXISTS, /* H5Oexists_by_name */ - H5VL_OBJECT_VISIT, /* H5Ovisit(_by_name) */ - H5VL_REF_CREATE, /* H5Rcreate */ - H5VL_OBJECT_FLUSH, /* H5{D|G|O|T}flush */ - H5VL_OBJECT_REFRESH /* H5{D|G|O|T}refresh */ -} H5VL_object_specific_t; - -/* types for async request SPECIFIC callback */ -typedef enum H5VL_request_specific_t { - H5VL_REQUEST_WAITANY, /* Wait until any request completes */ - H5VL_REQUEST_WAITSOME, /* Wait until at least one requesst completes */ - H5VL_REQUEST_WAITALL /* Wait until all requests complete */ -} H5VL_request_specific_t; - -/* types for different ways that objects are located in an HDF5 container */ -typedef enum H5VL_loc_type_t { - H5VL_OBJECT_BY_SELF, - H5VL_OBJECT_BY_NAME, - H5VL_OBJECT_BY_IDX, - H5VL_OBJECT_BY_ADDR, - H5VL_OBJECT_BY_REF -} H5VL_loc_type_t; - -struct H5VL_loc_by_name { - const char *name; - hid_t lapl_id; -}; - -struct H5VL_loc_by_idx { - const char *name; - H5_index_t idx_type; - H5_iter_order_t order; - hsize_t n; - hid_t lapl_id; -}; - -struct H5VL_loc_by_addr { - haddr_t addr; -}; - -struct H5VL_loc_by_ref { - H5R_type_t ref_type; - const void *_ref; - hid_t lapl_id; -}; - -/* Structure to hold parameters for object locations. - * either: BY_ADDR, BY_ID, BY_NAME, BY_IDX, BY_REF - * - * Note: Leave loc_by_addr as the first union member so we - * can perform the simplest initialization of the struct - * without raising warnings. +/* VOL connector identifier values + * These are H5VL_class_value_t values, NOT hid_t values! */ -typedef struct H5VL_loc_params_t { - H5I_type_t obj_type; - H5VL_loc_type_t type; - union{ - struct H5VL_loc_by_addr loc_by_addr; - struct H5VL_loc_by_name loc_by_name; - struct H5VL_loc_by_idx loc_by_idx; - struct H5VL_loc_by_ref loc_by_ref; - } loc_data; -} H5VL_loc_params_t; - -/* VOL connector info fields & callbacks */ -typedef struct H5VL_info_class_t { - size_t size; /* Size of the VOL info */ - void * (*copy)(const void *info); /* Callback to create a copy of the VOL info */ - herr_t (*cmp)(int *cmp_value, const void *info1, const void *info2); /* Callback to compare VOL info */ - herr_t (*free)(void *info); /* Callback to release a VOL info */ - herr_t (*to_str)(const void *info, char **str); /* Callback to serialize connector's info into a string */ - herr_t (*from_str)(const char *str, void **info); /* Callback to deserialize a string into connector's info */ -} H5VL_info_class_t; - -/* VOL object wrap / retrieval callbacks */ -/* (These only need to be implemented by "pass through" VOL connectors) */ -typedef struct H5VL_wrap_class_t { - void * (*get_object)(const void *obj); /* Callback to retrieve underlying object */ - herr_t (*get_wrap_ctx)(const void *obj, void **wrap_ctx); /* Callback to retrieve the object wrapping context for the connector */ - void * (*wrap_object)(void *obj, H5I_type_t obj_type, void *wrap_ctx); /* Callback to wrap a library object */ - void * (*unwrap_object)(void *obj); /* Callback to unwrap a library object */ - herr_t (*free_wrap_ctx)(void *wrap_ctx); /* Callback to release the object wrapping context for the connector */ -} H5VL_wrap_class_t; - -/* H5A routines */ -typedef struct H5VL_attr_class_t { - void *(*create)(void *obj, const H5VL_loc_params_t *loc_params, const char *attr_name, - hid_t type_id, hid_t space_id, hid_t acpl_id, hid_t aapl_id, - hid_t dxpl_id, void **req); - void *(*open)(void *obj, const H5VL_loc_params_t *loc_params, const char *attr_name, - hid_t aapl_id, hid_t dxpl_id, void **req); - herr_t (*read)(void *attr, hid_t mem_type_id, void *buf, hid_t dxpl_id, void **req); - herr_t (*write)(void *attr, hid_t mem_type_id, const void *buf, hid_t dxpl_id, void **req); - herr_t (*get)(void *obj, H5VL_attr_get_t get_type, hid_t dxpl_id, void **req, va_list arguments); - herr_t (*specific)(void *obj, const H5VL_loc_params_t *loc_params, H5VL_attr_specific_t specific_type, - hid_t dxpl_id, void **req, va_list arguments); - herr_t (*optional)(void *obj, hid_t dxpl_id, void **req, va_list arguments); - herr_t (*close) (void *attr, hid_t dxpl_id, void **req); -} H5VL_attr_class_t; - -/* H5D routines */ -typedef struct H5VL_dataset_class_t { - void *(*create)(void *obj, const H5VL_loc_params_t *loc_params, const char *name, - hid_t lcpl_id, hid_t type_id, hid_t space_id, hid_t dcpl_id, - hid_t dapl_id, hid_t dxpl_id, void **req); - void *(*open)(void *obj, const H5VL_loc_params_t *loc_params, const char *name, - hid_t dapl_id, hid_t dxpl_id, void **req); - herr_t (*read)(void *dset, hid_t mem_type_id, hid_t mem_space_id, hid_t file_space_id, - hid_t xfer_plist_id, void * buf, void **req); - herr_t (*write)(void *dset, hid_t mem_type_id, hid_t mem_space_id, hid_t file_space_id, - hid_t xfer_plist_id, const void * buf, void **req); - herr_t (*get)(void *obj, H5VL_dataset_get_t get_type, hid_t dxpl_id, void **req, va_list arguments); - herr_t (*specific)(void *obj, H5VL_dataset_specific_t specific_type, - hid_t dxpl_id, void **req, va_list arguments); - herr_t (*optional)(void *obj, hid_t dxpl_id, void **req, va_list arguments); - herr_t (*close) (void *dset, hid_t dxpl_id, void **req); -} H5VL_dataset_class_t; - -/* H5T routines*/ -typedef struct H5VL_datatype_class_t { - void *(*commit)(void *obj, const H5VL_loc_params_t *loc_params, const char *name, hid_t type_id, - hid_t lcpl_id, hid_t tcpl_id, hid_t tapl_id, hid_t dxpl_id, void **req); - void *(*open)(void *obj, const H5VL_loc_params_t *loc_params, const char * name, - hid_t tapl_id, hid_t dxpl_id, void **req); - herr_t (*get) (void *obj, H5VL_datatype_get_t get_type, hid_t dxpl_id, void **req, va_list arguments); - herr_t (*specific)(void *obj, H5VL_datatype_specific_t specific_type, - hid_t dxpl_id, void **req, va_list arguments); - herr_t (*optional)(void *obj, hid_t dxpl_id, void **req, va_list arguments); - herr_t (*close) (void *dt, hid_t dxpl_id, void **req); -} H5VL_datatype_class_t; - -/* H5F routines */ -typedef struct H5VL_file_class_t { - void *(*create)(const char *name, unsigned flags, hid_t fcpl_id, - hid_t fapl_id, hid_t dxpl_id, void **req); - void *(*open)(const char *name, unsigned flags, hid_t fapl_id, hid_t dxpl_id, void **req); - herr_t (*get)(void *obj, H5VL_file_get_t get_type, hid_t dxpl_id, void **req, va_list arguments); - herr_t (*specific)(void *obj, H5VL_file_specific_t specific_type, - hid_t dxpl_id, void **req, va_list arguments); - herr_t (*optional)(void *obj, hid_t dxpl_id, void **req, va_list arguments); - herr_t (*close) (void *file, hid_t dxpl_id, void **req); -} H5VL_file_class_t; - -/* H5G routines */ -typedef struct H5VL_group_class_t { - void *(*create)(void *obj, const H5VL_loc_params_t *loc_params, const char *name, - hid_t lcpl_id, hid_t gcpl_id, hid_t gapl_id, hid_t dxpl_id, void **req); - void *(*open)(void *obj, const H5VL_loc_params_t *loc_params, const char *name, - hid_t gapl_id, hid_t dxpl_id, void **req); - herr_t (*get)(void *obj, H5VL_group_get_t get_type, hid_t dxpl_id, void **req, va_list arguments); - herr_t (*specific)(void *obj, H5VL_group_specific_t specific_type, - hid_t dxpl_id, void **req, va_list arguments); - herr_t (*optional)(void *obj, hid_t dxpl_id, void **req, va_list arguments); - herr_t (*close) (void *grp, hid_t dxpl_id, void **req); -} H5VL_group_class_t; - -/* H5L routines */ -typedef struct H5VL_link_class_t { - herr_t (*create)(H5VL_link_create_type_t create_type, void *obj, const H5VL_loc_params_t *loc_params, - hid_t lcpl_id, hid_t lapl_id, hid_t dxpl_id, void **req, va_list argumenmts); - herr_t (*copy)(void *src_obj, const H5VL_loc_params_t *loc_params1, - void *dst_obj, const H5VL_loc_params_t *loc_params2, - hid_t lcpl, hid_t lapl, hid_t dxpl_id, void **req); - herr_t (*move)(void *src_obj, const H5VL_loc_params_t *loc_params1, - void *dst_obj, const H5VL_loc_params_t *loc_params2, - hid_t lcpl, hid_t lapl, hid_t dxpl_id, void **req); - herr_t (*get)(void *obj, const H5VL_loc_params_t *loc_params, H5VL_link_get_t get_type, - hid_t dxpl_id, void **req, va_list arguments); - herr_t (*specific)(void *obj, const H5VL_loc_params_t *loc_params, H5VL_link_specific_t specific_type, - hid_t dxpl_id, void **req, va_list arguments); - herr_t (*optional)(void *obj, hid_t dxpl_id, void **req, va_list arguments); -} H5VL_link_class_t; - -/* H5O routines */ -typedef struct H5VL_object_class_t { - void *(*open)(void *obj, const H5VL_loc_params_t *loc_params, H5I_type_t *opened_type, - hid_t dxpl_id, void **req); - herr_t (*copy)(void *src_obj, const H5VL_loc_params_t *loc_params1, const char *src_name, - void *dst_obj, const H5VL_loc_params_t *loc_params2, const char *dst_name, - hid_t ocpypl_id, hid_t lcpl_id, hid_t dxpl_id, void **req); - herr_t (*get)(void *obj, const H5VL_loc_params_t *loc_params, H5VL_object_get_t get_type, - hid_t dxpl_id, void **req, va_list arguments); - herr_t (*specific)(void *obj, const H5VL_loc_params_t *loc_params, H5VL_object_specific_t specific_type, - hid_t dxpl_id, void **req, va_list arguments); - herr_t (*optional)(void *obj, hid_t dxpl_id, void **req, va_list arguments); -} H5VL_object_class_t; - -/* Asynchronous request 'notify' callback */ -typedef herr_t (*H5VL_request_notify_t)(void *ctx, H5ES_status_t status); - -/* Async request operation routines */ -typedef struct H5VL_request_class_t { - herr_t (*wait)(void *req, uint64_t timeout, H5ES_status_t *status); - herr_t (*notify)(void *req, H5VL_request_notify_t cb, void *ctx); - herr_t (*cancel)(void *req); - herr_t (*specific)(void *req, H5VL_request_specific_t specific_type, va_list arguments); - herr_t (*optional)(void *req, va_list arguments); - herr_t (*free)(void *req); -} H5VL_request_class_t; - -/* - * VOL connector identifiers. Values 0 through 255 are for connectors defined - * by the HDF5 library. Values 256 through 511 are available for testing new - * filters. Subsequent values should be obtained from the HDF5 development - * team at help@hdfgroup.org. - */ -typedef int H5VL_class_value_t; - -/* VOL connector identifier values */ #define H5_VOL_INVALID (-1) /* Invalid ID for VOL connector iD */ #define H5_VOL_NATIVE 0 /* Native HDF5 file formnat VOL connector */ #define H5_VOL_RESERVED 256 /* VOL connector IDs below this value are reserved for library use */ -#define H5_VOL_MAX 65535 /* Maximum VOL connector ID */ - -/* Capability flags for connector */ -#define H5VL_CAP_FLAG_NONE 0 /* No special connector capabilities */ -#define H5VL_CAP_FLAG_THREADSAFE 0x01 /* Connector is threadsafe */ - -/* Class information for each VOL connector */ -typedef struct H5VL_class_t { - /* Overall connector fields & callbacks */ - unsigned int version; /* VOL connector class struct version # */ - H5VL_class_value_t value; /* Value to identify connector */ - const char *name; /* Connector name (MUST be unique!) */ - unsigned cap_flags; /* Capability flags for connector */ - herr_t (*initialize)(hid_t vipl_id); /* Connector initialization callback */ - herr_t (*terminate)(void); /* Connector termination callback */ +#define H5_VOL_MAX 65535 /* Maximum VOL connector ID */ - /* VOL framework */ - H5VL_info_class_t info_cls; /* VOL info fields & callbacks */ - H5VL_wrap_class_t wrap_cls; /* VOL object wrap / retrieval callbacks */ - - /* Data Model */ - H5VL_attr_class_t attr_cls; /* Attribute (H5A*) class callbacks */ - H5VL_dataset_class_t dataset_cls; /* Dataset (H5D*) class callbacks */ - H5VL_datatype_class_t datatype_cls; /* Datatype (H5T*) class callbacks */ - H5VL_file_class_t file_cls; /* File (H5F*) class callbacks */ - H5VL_group_class_t group_cls; /* Group (H5G*) class callbacks */ - H5VL_link_class_t link_cls; /* Link (H5L*) class callbacks */ - H5VL_object_class_t object_cls; /* Object (H5O*) class callbacks */ - - /* Services */ - H5VL_request_class_t request_cls; /* Asynchronous request class callbacks */ - - /* Catch-all */ - herr_t (*optional)(void *obj, hid_t dxpl_id, void **req, va_list arguments); /* Optional callback */ -} H5VL_class_t; +/*******************/ +/* Public Typedefs */ +/*******************/ /********************/ /* Public Variables */ @@ -413,7 +55,10 @@ typedef struct H5VL_class_t { extern "C" { #endif -/* VOL Connector Functionality */ +/* The H5VL types uses in the API calls are not opaque - they are defined in + * H5VLconnector.h, which is included at the top of this file. + */ + H5_DLL hid_t H5VLregister_connector(const H5VL_class_t *cls, hid_t vipl_id); H5_DLL hid_t H5VLregister_connector_by_name(const char *connector_name, hid_t vipl_id); H5_DLL hid_t H5VLregister_connector_by_value(H5VL_class_value_t connector_value, hid_t vipl_id); @@ -424,112 +69,6 @@ H5_DLL herr_t H5VLclose(hid_t connector_id); H5_DLL herr_t H5VLunregister_connector(hid_t connector_id); -/***************************************************************************** - * VOL callback wrappers and helper routines, for _VOL_connector_ authors only! * - * (Not part of the public API for _application_ developers) * - *****************************************************************************/ - -/* Helper routines for VOL connector authors */ -H5_DLL herr_t H5VLcmp_connector_cls(int *cmp, hid_t connector_id1, hid_t connector_id2); -H5_DLL hid_t H5VLwrap_register(void *obj, H5I_type_t type); -H5_DLL void *H5VLobject(hid_t obj_id); -H5_DLL herr_t H5VLretrieve_lib_state(void **state); -H5_DLL herr_t H5VLrestore_lib_state(const void *state); -H5_DLL herr_t H5VLreset_lib_state(void); -H5_DLL herr_t H5VLfree_lib_state(void *state); - - -/* Public wrappers for generic callbacks */ -H5_DLL herr_t H5VLinitialize(hid_t connector_id, hid_t vipl_id); -H5_DLL herr_t H5VLterminate(hid_t connector_id); -H5_DLL herr_t H5VLget_cap_flags(hid_t connector_id, unsigned *cap_flags); -H5_DLL herr_t H5VLget_value(hid_t connector_id, H5VL_class_value_t *conn_value); -H5_DLL herr_t H5VLcopy_connector_info(hid_t connector_id, void **dst_vol_info, void *src_vol_info); -H5_DLL herr_t H5VLcmp_connector_info(int *cmp, hid_t connector_id, const void *info1, - const void *info2); -H5_DLL herr_t H5VLfree_connector_info(hid_t connector_id, void *vol_info); -H5_DLL herr_t H5VLconnector_info_to_str(const void *info, hid_t connector_id, char **str); -H5_DLL herr_t H5VLconnector_str_to_info(const char *str, hid_t connector_id, void **info); -H5_DLL void *H5VLget_object(void *obj, hid_t connector_id); -H5_DLL herr_t H5VLget_wrap_ctx(void *obj, hid_t connector_id, void **wrap_ctx); -H5_DLL void *H5VLwrap_object(void *obj, H5I_type_t obj_type, hid_t connector_id, - void *wrap_ctx); -H5_DLL void *H5VLunwrap_object(void *obj, hid_t connector_id); -H5_DLL herr_t H5VLfree_wrap_ctx(void *wrap_ctx, hid_t connector_id); - -/* Public wrappers for attribute callbacks */ -H5_DLL void *H5VLattr_create(void *obj, const H5VL_loc_params_t *loc_params, hid_t connector_id, const char *attr_name, hid_t type_id, hid_t space_id, hid_t acpl_id, hid_t aapl_id, hid_t dxpl_id, void **req); -H5_DLL void *H5VLattr_open(void *obj, const H5VL_loc_params_t *loc_params, hid_t connector_id, const char *name, hid_t aapl_id, hid_t dxpl_id, void **req); -H5_DLL herr_t H5VLattr_read(void *attr, hid_t connector_id, hid_t dtype_id, void *buf, hid_t dxpl_id, void **req); -H5_DLL herr_t H5VLattr_write(void *attr, hid_t connector_id, hid_t dtype_id, const void *buf, hid_t dxpl_id, void **req); -H5_DLL herr_t H5VLattr_get(void *obj, hid_t connector_id, H5VL_attr_get_t get_type, hid_t dxpl_id, void **req, va_list arguments); -H5_DLL herr_t H5VLattr_specific(void *obj, const H5VL_loc_params_t *loc_params, hid_t connector_id, H5VL_attr_specific_t specific_type, hid_t dxpl_id, void **req, va_list arguments); -H5_DLL herr_t H5VLattr_optional(void *obj, hid_t connector_id, hid_t dxpl_id, void **req, va_list arguments); -H5_DLL herr_t H5VLattr_close(void *attr, hid_t connector_id, hid_t dxpl_id, void **req); - -/* Public wrappers for dataset callbacks */ -H5_DLL void *H5VLdataset_create(void *obj, const H5VL_loc_params_t *loc_params, hid_t connector_id, const char *name, hid_t lcpl_id, hid_t type_id, hid_t space_id, hid_t dcpl_id, hid_t dapl_id, hid_t dxpl_id, void **req); -H5_DLL void *H5VLdataset_open(void *obj, const H5VL_loc_params_t *loc_params, hid_t connector_id, const char *name, hid_t dapl_id, hid_t dxpl_id, void **req); -H5_DLL herr_t H5VLdataset_read(void *dset, hid_t connector_id, hid_t mem_type_id, hid_t mem_space_id, hid_t file_space_id, hid_t plist_id, void *buf, void **req); -H5_DLL herr_t H5VLdataset_write(void *dset, hid_t connector_id, hid_t mem_type_id, hid_t mem_space_id, hid_t file_space_id, hid_t plist_id, const void *buf, void **req); -H5_DLL herr_t H5VLdataset_get(void *dset, hid_t connector_id, H5VL_dataset_get_t get_type, hid_t dxpl_id, void **req, va_list arguments); -H5_DLL herr_t H5VLdataset_specific(void *obj, hid_t connector_id, H5VL_dataset_specific_t specific_type, hid_t dxpl_id, void **req, va_list arguments); -H5_DLL herr_t H5VLdataset_optional(void *obj, hid_t connector_id, hid_t dxpl_id, void **req, va_list arguments); -H5_DLL herr_t H5VLdataset_close(void *dset, hid_t connector_id, hid_t dxpl_id, void **req); - -/* Public wrappers for file callbacks */ -H5_DLL void *H5VLfile_create(const char *name, unsigned flags, hid_t fcpl_id, hid_t fapl_id, hid_t dxpl_id, void **req); -H5_DLL void *H5VLfile_open(const char *name, unsigned flags, hid_t fapl_id, hid_t dxpl_id, void **req); -H5_DLL herr_t H5VLfile_get(void *file, hid_t connector_id, H5VL_file_get_t get_type, hid_t dxpl_id, void **req, va_list arguments); -H5_DLL herr_t H5VLfile_specific(void *obj, hid_t connector_id, H5VL_file_specific_t specific_type, hid_t dxpl_id, void **req, va_list arguments); -H5_DLL herr_t H5VLfile_optional(void *obj, hid_t connector_id, hid_t dxpl_id, void **req, va_list arguments); -H5_DLL herr_t H5VLfile_close(void *file, hid_t connector_id, hid_t dxpl_id, void **req); - -/* Public wrappers for group callbacks */ -H5_DLL void *H5VLgroup_create(void *obj, const H5VL_loc_params_t *loc_params, hid_t connector_id, const char *name, hid_t lcpl_id, hid_t gcpl_id, hid_t gapl_id, hid_t dxpl_id, void **req); -H5_DLL void *H5VLgroup_open(void *obj, const H5VL_loc_params_t *loc_params, hid_t connector_id, const char *name, hid_t gapl_id, hid_t dxpl_id, void **req); -H5_DLL herr_t H5VLgroup_get(void *obj, hid_t connector_id, H5VL_group_get_t get_type, hid_t dxpl_id, void **req, va_list arguments); -H5_DLL herr_t H5VLgroup_specific(void *obj, hid_t connector_id, H5VL_group_specific_t specific_type, hid_t dxpl_id, void **req, va_list arguments); -H5_DLL herr_t H5VLgroup_optional(void *obj, hid_t connector_id, hid_t dxpl_id, void **req, va_list arguments); -H5_DLL herr_t H5VLgroup_close(void *grp, hid_t connector_id, hid_t dxpl_id, void **req); - -/* Public wrappers for link callbacks */ -H5_DLL herr_t H5VLlink_create(H5VL_link_create_type_t create_type, void *obj, const H5VL_loc_params_t *loc_params, hid_t connector_id, hid_t lcpl_id, hid_t lapl_id, hid_t dxpl_id, void **req, va_list arguments); -H5_DLL herr_t H5VLlink_copy(void *src_obj, const H5VL_loc_params_t *loc_params1, - void *dst_obj, const H5VL_loc_params_t *loc_params2, hid_t connector_id, - hid_t lcpl_id, hid_t lapl_id, hid_t dxpl_id, void **req); -H5_DLL herr_t H5VLlink_move(void *src_obj, const H5VL_loc_params_t *loc_params1, - void *dst_obj, const H5VL_loc_params_t *loc_params2, hid_t connector_id, - hid_t lcpl_id, hid_t lapl_id, hid_t dxpl_id, void **req); -H5_DLL herr_t H5VLlink_get(void *obj, const H5VL_loc_params_t *loc_params, hid_t connector_id, H5VL_link_get_t get_type, hid_t dxpl_id, void **req, va_list arguments); -H5_DLL herr_t H5VLlink_specific(void *obj, const H5VL_loc_params_t *loc_params, hid_t connector_id, H5VL_link_specific_t specific_type, hid_t dxpl_id, void **req, va_list arguments); -H5_DLL herr_t H5VLlink_optional(void *obj, hid_t connector_id, hid_t dxpl_id, void **req, va_list arguments); - -/* Public wrappers for object callbacks */ -H5_DLL void *H5VLobject_open(void *obj, const H5VL_loc_params_t *loc_params, hid_t connector_id, H5I_type_t *opened_type, hid_t dxpl_id, void **req); -H5_DLL herr_t H5VLobject_copy(void *src_obj, const H5VL_loc_params_t *loc_params1, const char *src_name, - void *dst_obj, const H5VL_loc_params_t *loc_params2, const char *dst_name, - hid_t connector_id, hid_t ocpypl_id, hid_t lcpl_id, hid_t dxpl_id, void **req); -H5_DLL herr_t H5VLobject_get(void *obj, const H5VL_loc_params_t *loc_params, hid_t connector_id, H5VL_object_get_t get_type, hid_t dxpl_id, void **req, va_list arguments); -H5_DLL herr_t H5VLobject_specific(void *obj, const H5VL_loc_params_t *loc_params, hid_t connector_id, H5VL_object_specific_t specific_type, hid_t dxpl_id, void **req, va_list arguments); -H5_DLL herr_t H5VLobject_optional(void *obj, hid_t connector_id, hid_t dxpl_id, void **req, va_list arguments); - -/* Public wrappers for named datatype callbacks */ -H5_DLL void *H5VLdatatype_commit(void *obj, const H5VL_loc_params_t *loc_params, hid_t connector_id, const char *name, hid_t type_id, hid_t lcpl_id, hid_t tcpl_id, hid_t tapl_id, hid_t dxpl_id, void **req); -H5_DLL void *H5VLdatatype_open(void *obj, const H5VL_loc_params_t *loc_params, hid_t connector_id, const char *name, hid_t tapl_id, hid_t dxpl_id, void **req); -H5_DLL herr_t H5VLdatatype_get(void *dt, hid_t connector_id, H5VL_datatype_get_t get_type, hid_t dxpl_id, void **req, va_list arguments); -H5_DLL herr_t H5VLdatatype_specific(void *obj, hid_t connector_id, H5VL_datatype_specific_t specific_type, hid_t dxpl_id, void **req, va_list arguments); -H5_DLL herr_t H5VLdatatype_optional(void *obj, hid_t connector_id, hid_t dxpl_id, void **req, va_list arguments); -H5_DLL herr_t H5VLdatatype_close(void *dt, hid_t connector_id, hid_t dxpl_id, void **req); - -/* Public wrappers for asynchronous request callbacks */ -H5_DLL herr_t H5VLrequest_wait(void *req, hid_t connector_id, uint64_t timeout, H5ES_status_t *status); -H5_DLL herr_t H5VLrequest_notify(void *req, hid_t connector_id, H5VL_request_notify_t cb, void *ctx); -H5_DLL herr_t H5VLrequest_cancel(void *req, hid_t connector_id); -H5_DLL herr_t H5VLrequest_specific(void *req, hid_t connector_id, H5VL_request_specific_t specific_type, va_list arguments); -H5_DLL herr_t H5VLrequest_optional(void *req, hid_t connector_id, va_list arguments); -H5_DLL herr_t H5VLrequest_free(void *req, hid_t connector_id); - #ifdef __cplusplus } #endif diff --git a/src/Makefile.am b/src/Makefile.am index 378e390..0368739 100644 --- a/src/Makefile.am +++ b/src/Makefile.am @@ -115,9 +115,9 @@ libhdf5_la_SOURCES= H5.c H5checksum.c H5dbg.c H5system.c H5timer.c H5trace.c \ H5Torder.c \ H5Tpad.c H5Tprecis.c H5Tstrpad.c H5Tvisit.c H5Tvlen.c H5TS.c \ H5VL.c H5VLcallback.c H5VLint.c H5VLnative.c \ - H5VLnative_attr.c H5VLnative_dataset.c H5VLnative_datatype.c \ - H5VLnative_file.c H5VLnative_group.c H5VLnative_link.c H5VLnative_object.c \ - H5VLpassthru.c \ + H5VLnative_attr.c H5VLnative_dataset.c H5VLnative_datatype.c \ + H5VLnative_file.c H5VLnative_group.c H5VLnative_link.c H5VLnative_object.c \ + H5VLpassthru.c \ H5VM.c H5WB.c H5Z.c \ H5Zdeflate.c H5Zfletcher32.c H5Znbit.c H5Zshuffle.c \ H5Zscaleoffset.c H5Zszip.c H5Ztrans.c @@ -144,7 +144,9 @@ include_HEADERS = hdf5.h H5api_adpt.h H5overflow.h H5pubconf.h H5public.h H5vers H5MMpublic.h H5Opublic.h H5Ppublic.h \ H5PLextern.h H5PLpublic.h \ H5Rpublic.h H5Spublic.h H5Tpublic.h \ - H5VLnative.h H5VLpassthru.h H5VLpublic.h H5Zpublic.h + H5VLconnector.h H5VLconnector_passthru.h \ + H5VLnative.h H5VLpassthru.h H5VLpublic.h \ + H5Zpublic.h # install libhdf5.settings in lib directory settingsdir=$(libdir) |