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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* 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://www.hdfgroup.org/licenses. *
* 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 H5VLconnector.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);
/* 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, H5VL_attr_optional_t opt_type, 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, H5VL_dataset_optional_t opt_type,
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 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, H5VL_datatype_optional_t opt_type,
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 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, H5VL_file_optional_t opt_type, 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, H5VL_group_optional_t opt_type, 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, H5VL_link_optional_t opt_type, 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, H5VL_object_optional_t opt_type,
hid_t dxpl_id, void **req, va_list arguments);
/* Public wrappers for connector/container introspection callbacks */
H5_DLL herr_t H5VLintrospect_get_conn_cls(void *obj, hid_t connector_id, H5VL_get_conn_lvl_t lvl,
const H5VL_class_t **conn_cls);
H5_DLL herr_t H5VLintrospect_opt_query(void *obj, hid_t connector_id, H5VL_subclass_t subcls, int opt_type,
hbool_t *supported);
/* 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, H5VL_request_optional_t opt_type,
va_list arguments);
H5_DLL herr_t H5VLrequest_free(void *req, hid_t connector_id);
/* Public wrappers for blob callbacks */
H5_DLL herr_t H5VLblob_put(void *obj, hid_t connector_id, const void *buf, size_t size, void *blob_id,
void *ctx);
H5_DLL herr_t H5VLblob_get(void *obj, hid_t connector_id, const void *blob_id, void *buf, size_t size,
void *ctx);
H5_DLL herr_t H5VLblob_specific(void *obj, hid_t connector_id, void *blob_id,
H5VL_blob_specific_t specific_type, va_list arguments);
H5_DLL herr_t H5VLblob_optional(void *obj, hid_t connector_id, void *blob_id, H5VL_blob_optional_t opt_type,
va_list arguments);
/* Public wrappers for token callbacks */
H5_DLL herr_t H5VLtoken_cmp(void *obj, hid_t connector_id, const H5O_token_t *token1,
const H5O_token_t *token2, int *cmp_value);
H5_DLL herr_t H5VLtoken_to_str(void *obj, H5I_type_t obj_type, hid_t connector_id, const H5O_token_t *token,
char **token_str);
H5_DLL herr_t H5VLtoken_from_str(void *obj, H5I_type_t obj_type, hid_t connector_id, const char *token_str,
H5O_token_t *token);
/* Public wrappers for generic 'optional' callback */
H5_DLL herr_t H5VLoptional(void *obj, hid_t connector_id, int op_type, hid_t dxpl_id, void **req,
va_list arguments);
#ifdef __cplusplus
}
#endif
#endif /* H5VLconnector_passthru_H */
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