VirtualBox

source: vbox/trunk/include/VBox/cfgldr.h@ 4388

Last change on this file since 4388 was 4337, checked in by vboxsync, 17 years ago

Mian/CFGLDR: Use IPRT functions to do string<->integer conversion (this also fixed some memory lieaks).

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1/** @file
2 * CFGLDR - Configuration Loader
3 */
4
5/*
6 * Copyright (C) 2006-2007 innotek GmbH
7 *
8 * This file is part of VirtualBox Open Source Edition (OSE), as
9 * available from http://www.virtualbox.org. This file is free software;
10 * you can redistribute it and/or modify it under the terms of the GNU
11 * General Public License as published by the Free Software Foundation,
12 * in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
13 * distribution. VirtualBox OSE is distributed in the hope that it will
14 * be useful, but WITHOUT ANY WARRANTY of any kind.
15 */
16
17#ifndef ___VBox_cfgldr_h
18#define ___VBox_cfgldr_h
19
20#include <VBox/cdefs.h>
21#include <VBox/types.h>
22#include <iprt/string.h>
23
24
25/** @defgroup grp_cfgldr The Configuration Loader API
26 * @{
27 */
28
29#ifndef IN_RING3
30# error "There are no configuration loader APIs available in Ring-0 Context!"
31#else /* IN_RING3 */
32
33/** @def IN_CFGLDR_R3
34 * Used to indicate whether we're inside the same link module as the
35 * Configuration Loader.
36 */
37#ifdef IN_CFGLDR_R3
38# define CFGLDRR3DECL(type) DECLEXPORT(type) VBOXCALL
39#else
40# define CFGLDRR3DECL(type) DECLIMPORT(type) VBOXCALL
41#endif
42
43/** @type CFGHANDLE
44 * Configuration handle. */
45/** @type CFGNODE
46 * Configuration node handle. */
47#ifdef __cplusplus
48class CfgLoader;
49typedef CfgLoader *CFGHANDLE;
50
51class CfgNode;
52typedef CfgNode *CFGNODE;
53#else
54struct CfgLoader;
55typedef struct CfgLoader *CFGHANDLE;
56
57struct CfgNode;
58typedef struct CfgNode *CFGNODE;
59#endif
60
61/** Entity type */
62typedef enum CFGLDRENTITYTYPE
63{
64 CFGLDRENTITYTYPE_INVALID = 0, /**< Invalid type */
65 CFGLDRENTITYTYPE_HANDLE, /**< File handle */
66 CFGLDRENTITYTYPE_MEMORY /**< Memory buffer */
67} CFGLDRENTITYTYPE;
68
69/** Entity descriptor for the entity resolver callback */
70typedef struct CFGLDRENTITY
71{
72 /** Entity type */
73 CFGLDRENTITYTYPE enmType;
74
75 union
76 {
77 /** File handle (CFGLDRENTITYTYPE_HANDLE) */
78 struct
79 {
80 RTFILE hFile; /**< Handle of the file opened for reading entity data */
81 bool bClose; /**< Whether to close the handle when no more needed */
82 } handle;
83 /** Memory buffer (CFGLDRENTITYTYPE_MEMORY) */
84 struct
85 {
86 unsigned char *puchBuf; /**< Byte array containing entity data */
87 size_t cbBuf; /**< Size of the puchBuf array */
88 bool bFree; /**< Whether to free puchBuf using RTMemTmpFree()
89 when no more needed */
90 } memory;
91 } u;
92
93} CFGLDRRESOLVEDENTITY;
94
95/** Pointer to CFGLDRENTITY */
96typedef CFGLDRENTITY *PCFGLDRENTITY;
97/** Pointer to const CFGLDRENTITY */
98typedef const CFGLDRENTITY *PCCFGLDRENTITY;
99
100/**
101 * Callback function used by CFGLDRLoad() to resolve external entities when
102 * loading and parsing the configuration file,
103 *
104 * First three arguments are input parameters, describing the entity to resolve.
105 * On return, the callback fills in a CFGLDRENTITY structure pointed to by the
106 * pEntity argument, with values corresponding to the given entity.
107 *
108 * @param pcszPublicId
109 * Public ID of the entity in question (UTF-8)
110 * @param pcszSystemId
111 * System ID (URI) of the entity in question (UTF-8)
112 * @param pcszBaseURI
113 * Base URI of the entity necessary to resolve relative URIs (UTF-8)
114 * @param pEntity
115 * Pointer to the entity descriptor structure to fill in
116 *
117 * @return
118 * VINF_SUCCESS to indicate that pEntity is successfully filled in by the
119 * callback. Any other value will cause the configuration
120 * loader to use the default entity resolver (see pfnEntityResolver in
121 * CFGLDRLoad()).
122 */
123typedef DECLCALLBACK(int) FNCFGLDRENTITYRESOLVER(const char *pcszPublicId,
124 const char *pcszSystemId,
125 const char *pcszBaseURI,
126 PCFGLDRENTITY pEntity);
127/** Pointer to entity resolver callback. */
128typedef FNCFGLDRENTITYRESOLVER *PFNCFGLDRENTITYRESOLVER;
129
130__BEGIN_DECLS
131
132/**
133 * Initializes CFGLDR, have to be called at VBox startup before accessing any CFGLDR functions.
134 *
135 * @return VBox status code.
136 */
137CFGLDRR3DECL(int) CFGLDRInitialize(void);
138
139/**
140 * Deletes all configurations and nodes at VBox termination. After calling this function all CFGLDR functions will be unavailable.
141 *
142 * @return VBox status code.
143 */
144CFGLDRR3DECL(void) CFGLDRShutdown(void);
145
146/**
147 * Creates a configuration file from scratch. The file then can be saved
148 * using the CFGLDRSaveAs() function.
149 *
150 * @return VBox status code.
151 */
152CFGLDRR3DECL(int) CFGLDRCreate(CFGHANDLE *phcfg);
153
154/**
155 * Loads a configuration file.
156 *
157 * @param phcfg
158 * Pointer to a handle that will be used to access the configuration.
159 * @param pszFilename
160 * Name of the file containing the configuration (UTF-8).
161 * @param hFileHandle
162 * Handle of the file containing the configuration. If equals to NIL_RTFILE,
163 * an attempt to open the specified file will be made; otherwise
164 * it must be a valid file handle corresponding to the given file name
165 * opened at least for reading.
166 * @param pszExternalSchemaLocation
167 * Name of the file containing namespaceless XML Schema for the configuration
168 * file or one or more pairs (separated by spaces) consiting of a namespace
169 * and an XML schema file for the given namespace, depending on the
170 * value of bDoNamespaces. The parameter can be NULL to indicate that
171 * no validation of the configuration file should be done.
172 * @param bDoNamespaces
173 * If TRUE, namespace processing is turned on and pszExternalSchemaLocation
174 * is assumed to contain "namespace schema-file" pairs; otherwise namespaces
175 * are disabled and pszExternalSchemaLocation is assumed to be a single file
176 * name. The parameter ignored if pszExternalSchemaLocation is NULL.
177 * @param pfnEntityResolver
178 * Callback used to resolve external entities in the configuration file.
179 * Note that the configuration file itself is always accessed directly
180 * (using the given file name or file handle), but all external entities it
181 * refers to, as well as all schema files, are resolved using this callback.
182 * This parameter can be NULL, in which case the default resolver is used
183 * which simply tries to open an entity by its system ID (URI).
184 * @param ppszErrorMessage
185 * Address of a variable that will receive a pointer to an UTF-8 string
186 * containing all error messages produced by a parser while parsing and
187 * validating the configuration file. If non-NULL pointer is returned, the
188 * caller must free the string using RTStrFree(). The parameter can be
189 * NULL on input (no error string will be returned), and it can point to
190 * NULL on output indicating that no error message was provided.
191 * If the function succeeds, the returned string is always NULL.
192 *
193 * @return VBox status code.
194 */
195CFGLDRR3DECL(int) CFGLDRLoad(CFGHANDLE *phcfg,
196 const char *pszFileName, RTFILE hFileHandle,
197 const char *pszExternalSchemaLocation, bool bDoNamespaces,
198 PFNCFGLDRENTITYRESOLVER pfnEntityResolver,
199 char **ppszErrorMessage);
200
201/**
202 * Frees the previously loaded configuration.
203 *
204 * @return VBox status code.
205 * @param hcfg Handle of configuration that was loaded using CFGLDRLoad().
206 */
207CFGLDRR3DECL(int) CFGLDRFree(CFGHANDLE hcfg);
208
209/**
210 * Saves the previously loaded configuration.
211 *
212 * @param hcfg
213 * Handle of the configuration that was loaded using CFGLDRLoad().
214 * @param ppszErrorMessage
215 * Address of a variable that will receive a pointer to an UTF-8 string
216 * containing all error messages produced by a writer while saving
217 * the configuration file. If non-NULL pointer is returned, the
218 * caller must free the string using RTStrFree(). The parameter can be
219 * NULL on input (no error string will be returned), and it can point to
220 * NULL on output indicating that no error message was provided.
221 * If the function succeeds, the returned string is always NULL.
222 *
223 * @return VBox status code.
224 */
225CFGLDRR3DECL(int) CFGLDRSave(CFGHANDLE hcfg,
226 char **ppszErrorMessage);
227/**
228 * Saves the configuration to a specified file.
229 *
230 * @param hcfg
231 * Handle of the configuration that was loaded using CFGLDRLoad().
232 * @param pszFilename
233 * Name of the file to save the configuration to (UTF-8).
234 * @param hFileHandle
235 * Handle of the file to save the configuration to. If equals to NIL_RTFILE,
236 * an attempt to open the specified file will be made; otherwise
237 * it must be a valid file handle corresponding to the given file name
238 * opened at least for writting.
239 * @param ppszErrorMessage
240 * Address of a variable that will receive a pointer to an UTF-8 string
241 * containing all error messages produced by a writer while saving
242 * the configuration file. If non-NULL pointer is returned, the
243 * caller must free the string using RTStrFree(). The parameter can be
244 * NULL on input (no error string will be returned), and it can point to
245 * NULL on output indicating that no error message was provided.
246 * If the function succeeds, the returned string is always NULL.
247 *
248 * @return VBox status code.
249 */
250CFGLDRR3DECL(int) CFGLDRSaveAs(CFGHANDLE hcfg,
251 const char *pszFilename, RTFILE hFileHandle,
252 char **ppszErrorMessage);
253
254/**
255 * Applies an XSLT transformation to the given configuration handle.
256 *
257 * @param hcfg
258 * Handle of the configuration that was loaded using CFGLDRLoad().
259 * @param pszTemlateLocation
260 * Name of the file containing an XSL template to apply
261 * @param pfnEntityResolver
262 * Callback used to resolve external entities (the XSL template file).
263 * This parameter can be NULL, in which case the default resolver is used
264 * which simply tries to open an entity by its system ID (URI).
265 * @param ppszErrorMessage
266 * Address of a variable that will receive a pointer to an UTF-8 string
267 * containing all error messages produced by a parser while parsing and
268 * validating the configuration file. If non-NULL pointer is returned, the
269 * caller must free the string using RTStrFree(). The parameter can be
270 * NULL on input (no error string will be returned), and it can point to
271 * NULL on output indicating that no error message was provided.
272 * If the function succeeds, the returned string is always NULL.
273 */
274CFGLDRR3DECL(int) CFGLDRTransform (CFGHANDLE hcfg,
275 const char *pszTemlateLocation,
276 PFNCFGLDRENTITYRESOLVER pfnEntityResolver,
277 char **ppszErrorMessage);
278
279/**
280 * Get node handle.
281 *
282 * @return VBox status code.
283 * @param hcfg Handle of configuration that was loaded using CFGLDRLoad().
284 * @param pszName Name of the node (UTF-8).
285 * @param uIndex Index of the node (0 based).
286 * @param phnode Pointer to a handle that will be used to access the node attributes, value and child nodes.
287 */
288CFGLDRR3DECL(int) CFGLDRGetNode(CFGHANDLE hcfg, const char *pszName, unsigned uIndex, CFGNODE *phnode);
289
290/**
291 * Get child node handle.
292 *
293 * @return VBox status code.
294 * @param hparent Handle of parent node.
295 * @param pszName Name of the child node (UTF-8), NULL for any child.
296 * @param uIndex Index of the child node (0 based).
297 * @param phnode Pointer to a handle that will be used to access the node attributes, value and child nodes.
298 */
299CFGLDRR3DECL(int) CFGLDRGetChildNode(CFGNODE hparent, const char *pszName, unsigned uIndex, CFGNODE *phnode);
300
301/**
302 * Creates a new node or returns the first one with a given name if
303 * already exists.
304 *
305 * @return VBox status code.
306 * @param hcfg Handle of the configuration.
307 * @param pszName Name of the node to be created (UTF-8).
308 * @param phnode Pointer to a handle that will be used to access the node attributes, value and child nodes.
309 */
310CFGLDRR3DECL(int) CFGLDRCreateNode(CFGHANDLE hcfg, const char *pszName, CFGNODE *phnode);
311
312/**
313 * Creates a new child node or returns the first one with a given name if
314 * already exists.
315 *
316 * @return VBox status code.
317 * @param hparent Handle of parent node.
318 * @param pszName Name of the child node (UTF-8).
319 * @param phnode Pointer to a handle that will be used to access the node attributes, value and child nodes.
320 */
321CFGLDRR3DECL(int) CFGLDRCreateChildNode(CFGNODE hparent, const char *pszName, CFGNODE *phnode);
322
323/**
324 * Appends a new child node.
325 *
326 * @return VBox status code.
327 * @param hparent Handle of parent node.
328 * @param pszName Name of the child node (UTF-8).
329 * @param phnode Pointer to a handle that will be used to access the node attributes, value and child nodes.
330 */
331CFGLDRR3DECL(int) CFGLDRAppendChildNode(CFGNODE hparent, const char *pszName, CFGNODE *phnode);
332
333/**
334 * Release node handle.
335 *
336 * @return VBox status code.
337 * @param hnode Handle that will not be used anymore.
338 */
339CFGLDRR3DECL(int) CFGLDRReleaseNode(CFGNODE hnode);
340
341/**
342 * Delete node. The handle is released and the entire node is removed.
343 *
344 * @return VBox status code.
345 * @param hnode Handle of node that will be deleted.
346 */
347CFGLDRR3DECL(int) CFGLDRDeleteNode(CFGNODE hnode);
348
349/**
350 * Count child nodes with given name.
351 *
352 * @return VBox status code.
353 * @param hparent Handle of parent node.
354 * @param pszChildName Name of the child node (UTF-8), NULL for all children.
355 * @param pCount Pointer to unsigned variable where to store the count.
356 */
357CFGLDRR3DECL(int) CFGLDRCountChildren(CFGNODE hnode, const char *pszChildName, unsigned *pCount);
358
359/**
360 * Query 32 bit unsigned value attribute.
361 *
362 * @return VBox status code.
363 * @param hnode Node which attribute will be queried.
364 * @param pszName Name of the attribute (UTF-8), NULL for the node value.
365 * @param pulValue Pointer to 32 bit variable where to store the value.
366 */
367CFGLDRR3DECL(int) CFGLDRQueryUInt32(CFGNODE hnode, const char *pszName, uint32_t *pulValue);
368
369/**
370 * Set 32 bit unsigned value attribute.
371 *
372 * @return VBox status code.
373 * @param hnode Node which attribute will be set.
374 * @param pszName Name of the attribute (UTF-8), NULL for the node value.
375 * @param ulValue The value.
376 */
377CFGLDRR3DECL(int) CFGLDRSetUInt32(CFGNODE hnode, const char *pszName, uint32_t ulValue);
378
379/**
380 * Set 32 bit unsigned value attribute.
381 *
382 * @return VBox status code.
383 * @param hnode Node which attribute will be set.
384 * @param pszName Name of the attribute (UTF-8), NULL for the node value.
385 * @param ulValue The value.
386 * @patam uiBase 0, 8 or 16.
387 */
388CFGLDRR3DECL(int) CFGLDRSetUInt32Ex(CFGNODE hnode, const char *pszName, uint32_t ulValue, unsigned int uiBase);
389
390/**
391 * Query 64 bit unsigned value attribute.
392 *
393 * @return VBox status code.
394 * @param hnode Node which attribute will be queried.
395 * @param pszName Name of the attribute (UTF-8), NULL for the node value.
396 * @param pullValue Pointer to 64 bit variable where to store the value.
397 */
398CFGLDRR3DECL(int) CFGLDRQueryUInt64(CFGNODE hnode, const char *pszName, uint64_t *pullValue);
399
400/**
401 * Set 64 bit unsigned value attribute.
402 *
403 * @return VBox status code.
404 * @param hnode Node which attribute will be set.
405 * @param pszName Name of the attribute (UTF-8), NULL for the node value.
406 * @param ullValue The value.
407 */
408CFGLDRR3DECL(int) CFGLDRSetUInt64(CFGNODE hnode, const char *pszName, uint64_t ullValue);
409
410/**
411 * Set 64 bit unsigned value attribute.
412 *
413 * @return VBox status code.
414 * @param hnode Node which attribute will be set.
415 * @param pszName Name of the attribute (UTF-8), NULL for the node value.
416 * @param ullValue The value.
417 * @patam uiBase 0, 8 or 16.
418 */
419CFGLDRR3DECL(int) CFGLDRSetUInt64Ex(CFGNODE hnode, const char *pszName, uint64_t ullValue, unsigned int uiBase);
420
421/**
422 * Query 32 bit signed integer value attribute.
423 *
424 * @return VBox status code.
425 * @param hnode Node which attribute will be queried.
426 * @param pszName Name of the attribute (UTF-8), NULL for the node value.
427 * @param plValue Pointer to 32 bit variable where to store the value.
428 */
429CFGLDRR3DECL(int) CFGLDRQueryInt32(CFGNODE hnode, const char *pszName, int32_t *plValue);
430
431/**
432 * Set 32 bit signed integer value attribute.
433 *
434 * @return VBox status code.
435 * @param hnode Node which attribute will be set.
436 * @param pszName Name of the attribute (UTF-8), NULL for the node value.
437 * @param lValue The value.
438 */
439CFGLDRR3DECL(int) CFGLDRSetInt32(CFGNODE hnode, const char *pszName, int32_t lValue);
440
441/**
442 * Set 32 bit signed integer value attribute.
443 *
444 * @return VBox status code.
445 * @param hnode Node which attribute will be set.
446 * @param pszName Name of the attribute (UTF-8), NULL for the node value.
447 * @param lValue The value.
448 * @patam uiBase 0, 8 or 16.
449 */
450CFGLDRR3DECL(int) CFGLDRSetInt32Ex(CFGNODE hnode, const char *pszName, int32_t lValue, unsigned int uiBase);
451
452/**
453 * Query 64 bit signed integer value attribute.
454 *
455 * @return VBox status code.
456 * @param hnode Node which attribute will be queried.
457 * @param pszName Name of the attribute (UTF-8), NULL for the node value.
458 * @param pllValue Pointer to 64 bit variable where to store the value.
459 */
460CFGLDRR3DECL(int) CFGLDRQueryInt64(CFGNODE hnode, const char *pszName, int64_t *pllValue);
461
462/**
463 * Set 64 bit signed integer value attribute.
464 *
465 * @return VBox status code.
466 * @param hnode Node which attribute will be set.
467 * @param pszName Name of the attribute (UTF-8), NULL for the node value.
468 * @param llValue The value.
469 */
470CFGLDRR3DECL(int) CFGLDRSetInt64(CFGNODE hnode, const char *pszName, int64_t llValue);
471
472/**
473 * Set 64 bit signed integer value attribute.
474 *
475 * @return VBox status code.
476 * @param hnode Node which attribute will be set.
477 * @param pszName Name of the attribute (UTF-8), NULL for the node value.
478 * @param llValue The value.
479 * @patam uiBase 0, 8 or 16.
480 */
481CFGLDRR3DECL(int) CFGLDRSetInt64Ex(CFGNODE hnode, const char *pszName, int64_t llValue, unsigned int uiBase);
482
483/**
484 * Query 16 bit unsigned integer value attribute.
485 *
486 * @return VBox status code.
487 * @param hnode Node which attribute will be queried.
488 * @param pszName Name of the attribute (UTF-8), NULL for the node value.
489 * @param puhValue Pointer to 16 bit variable where to store the value.
490 */
491CFGLDRR3DECL(int) CFGLDRQueryUInt16(CFGNODE hnode, const char *pszName, uint16_t *puhValue);
492
493/**
494 * Set 16 bit unsigned integer value attribute.
495 *
496 * @return VBox status code.
497 * @param hnode Node which attribute will be set.
498 * @param pszName Name of the attribute (UTF-8), NULL for the node value.
499 * @param uhValue The value.
500 */
501CFGLDRR3DECL(int) CFGLDRSetUInt16(CFGNODE hnode, const char *pszName, uint16_t uhValue);
502
503/**
504 * Set 16 bit unsigned integer value attribute.
505 *
506 * @return VBox status code.
507 * @param hnode Node which attribute will be set.
508 * @param pszName Name of the attribute (UTF-8), NULL for the node value.
509 * @param uhValue The value.
510 * @patam uiBase 0, 8 or 16.
511 */
512CFGLDRR3DECL(int) CFGLDRSetUInt16Ex(CFGNODE hnode, const char *pszName, uint16_t uhValue, unsigned int uiBase);
513
514/**
515 * Query binary data attribute. If the size of the buffer (cbValue)
516 * is smaller than the binary data size, the VERR_BUFFER_OVERFLOW status
517 * code is returned and the actual data size is stored into the variable
518 * pointed to by pcbValue; pvValue is ignored in this case.
519 *
520 * @return VBox status code.
521 * @param hnode Node which attribute will be queried.
522 * @param pszName Name of the attribute (UTF-8), NULL for the node value.
523 * @param pvValue Where to store the binary data.
524 * @param cbValue Size of buffer pvValue points to.
525 * @param pcbValue Where to store the number of bytes actually retrieved.
526 */
527CFGLDRR3DECL(int) CFGLDRQueryBin(CFGNODE hnode, const char *pszName, void *pvValue, unsigned cbValue, unsigned *pcbValue);
528
529/**
530 * Set binary data attribute.
531 *
532 * @return VBox status code.
533 * @param hnode Node which attribute will be set.
534 * @param pszName Name of the attribute (UTF-8), NULL for the node value.
535 * @param pvValue The binary data to store.
536 * @param cbValue Size of buffer pvValue points to.
537 */
538CFGLDRR3DECL(int) CFGLDRSetBin(CFGNODE hnode, const char *pszName, void *pvValue, unsigned cbValue);
539
540/**
541 * Queries a string attribute. If the size of the buffer (cbValue)
542 * is smaller than the length of the string, the VERR_BUFFER_OVERFLOW status
543 * code is returned and the actual string length is stored into the variable
544 * pointed to by pcbValue; pszValue is ignored in this case.
545 *
546 * @return VBox status code.
547 * @param hnode Node which attribute will be queried.
548 * @param pszName Name of the attribute (UTF-8), NULL for the node value.
549 * @param pszValue Where to store the string (UTF-8).
550 * @param cbValue Size of buffer pszValue points to, including the terminating zero.
551 * @param pcbValue Where to store the number of bytes actually retrieved, including the terminating zero.
552 */
553CFGLDRR3DECL(int) CFGLDRQueryString(CFGNODE hnode, const char *pszName, char *pszValue, unsigned cbValue, unsigned *pcbValue);
554
555#ifdef CFGLDR_HAVE_COM
556/**
557 * Queries a string attribute and returns it as an allocated OLE BSTR.
558 *
559 * @return VBox status code.
560 * @param hnode Node which attribute will be queried.
561 * @param pszName Name of the attribute (UTF-8), NULL for the node value.
562 * @param ppuszValue Where to store the pointer to the allocated BSTR.
563 */
564CFGLDRR3DECL(int) CFGLDRQueryBSTR(CFGNODE hnode, const char *pszName, BSTR *ppuszValue);
565#endif // CFGLDR_HAVE_COM
566
567/**
568 * Queries a UUID attribute and returns it into the supplied buffer.
569 *
570 * @return VBox status code.
571 * @param hnode Node which attribute will be queried.
572 * @param pszName Name of the attribute (UTF-8), NULL for the node value.
573 * @param pUUID Where to store the UUID.
574 */
575CFGLDRR3DECL(int) CFGLDRQueryUUID(CFGNODE hnode, const char *pszName, PRTUUID pUUID);
576
577/**
578 * Set UUID attribute. It will be put inside curly brackets.
579 *
580 * @return VBox status code.
581 * @param hnode Node which attribute will be set.
582 * @param pszName Name of the attribute (UTF-8), NULL for the node value.
583 * @param pUuid The uuid.
584 */
585CFGLDRR3DECL(int) CFGLDRSetUUID(CFGNODE hnode, const char *pszName, PCRTUUID pUuid);
586
587/**
588 * Set string attribute.
589 *
590 * @return VBox status code.
591 * @param hnode Node which attribute will be set.
592 * @param pszName Name of the attribute (UTF-8), NULL for the node value.
593 * @param pszValue The string (UTF-8).
594 * @param cbValue Size of buffer pszValue points to.
595 */
596CFGLDRR3DECL(int) CFGLDRSetString(CFGNODE hnode, const char *pszName, const char *pszValue);
597
598#ifdef CFGLDR_HAVE_COM
599/**
600 * Set BSTR attribute.
601 *
602 * @return VBox status code.
603 * @param hnode Node which attribute will be set.
604 * @param pszName Name of the attribute (UTF-8), NULL for the node value.
605 * @param bstrValue The string (COM BSTR).
606 * @param cbValue Size of buffer pszValue points to.
607 */
608CFGLDRR3DECL(int) CFGLDRSetBSTR(CFGNODE hnode, const char *pszName, const BSTR bstrValue);
609#endif // CFGLDR_HAVE_COM
610
611/**
612 * Queries a boolean attribute.
613 *
614 * @return VBox status code.
615 * @param hnode Node which attribute will be queried.
616 * @param pszName Name of the attribute (UTF-8), NULL for the node value.
617 * @param pfValue Where to store the value.
618 */
619CFGLDRR3DECL(int) CFGLDRQueryBool(CFGNODE hnode, const char *pszName, bool *pfValue);
620
621/**
622 * Sets a boolean attribute.
623 *
624 * @return VBox status code.
625 * @param hnode Node which attribute will be queried.
626 * @param pszName Name of the attribute (UTF-8), NULL for the node value.
627 * @param fValue The boolean value.
628 */
629CFGLDRR3DECL(int) CFGLDRSetBool(CFGNODE hnode, const char *pszName, bool fValue);
630
631/**
632 * Query 64-bit unix time (in milliseconds since 1970-01-01 UTC).
633 * The specified node or attribute must be a string in xsd:dateTime format.
634 *
635 * Currently, only the UTC ('Z') time zone is supported and must always present.
636 * If there is a different timezone, or no timezone at all, VERR_PARSE_ERROR
637 * is returned (use XML Schema constarints to limit the value space and prevent
638 * this error).
639 *
640 * Also note that the minimum 64-bit unix date year is
641 * about -292269053 and the maximum year is about ~292272993.
642 * It's a good idea to limit the max and min date values in the XML Schema
643 * as well, to something like -200000000 to 200000000.
644 *
645 * @return VBox status code.
646 * @param hnode Node which attribute will be queried.
647 * @param pszName Name of the attribute (UTF-8), NULL for the node value.
648 * @param pu64Value Pointer to 64 bit variable where to store the time value.
649 */
650CFGLDRR3DECL(int) CFGLDRQueryDateTime(CFGNODE hnode, const char *pszName, int64_t *pi64Value);
651
652/**
653 * Set 64-bit unix time (in milliseconds since 1970-01-01 UTC).
654 * Time is written to the specified node or attribute in the xsd:format.
655 *
656 * @return VBox status code.
657 * @param hnode Node which attribute will be set.
658 * @param pszName Name of the attribute (UTF-8), NULL for the node value.
659 * @param u64Value The time value.
660 */
661CFGLDRR3DECL(int) CFGLDRSetDateTime(CFGNODE hnode, const char *pszName, int64_t i64Value);
662
663/**
664 * Delete an attribute.
665 *
666 * @return VBox status code.
667 * @param hnode Node which attribute will be deleted.
668 * @param pszName Name of the attribute (UTF-8), NULL for the node value.
669 */
670CFGLDRR3DECL(int) CFGLDRDeleteAttribute(CFGNODE hnode, const char *pszName);
671
672// hack to not have to define BSTR
673#ifdef BSTR_REDEFINED
674#undef BSTR
675#endif
676
677#endif /* IN_RING3 */
678
679__END_DECLS
680
681/** @} */
682
683#endif
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