summaryrefslogtreecommitdiffstats
path: root/src/H5VLconnector_passthru.h
blob: 1b6715b0ba7388410203f70dd98bf8e4b70712b0 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * 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 */