/src/glib-2.88.3/gio/gfileattribute.c
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1 | | /* GIO - GLib Input, Output and Streaming Library |
2 | | * |
3 | | * Copyright (C) 2006-2007 Red Hat, Inc. |
4 | | * |
5 | | * SPDX-License-Identifier: LGPL-2.1-or-later |
6 | | * |
7 | | * This library is free software; you can redistribute it and/or |
8 | | * modify it under the terms of the GNU Lesser General Public |
9 | | * License as published by the Free Software Foundation; either |
10 | | * version 2.1 of the License, or (at your option) any later version. |
11 | | * |
12 | | * This library is distributed in the hope that it will be useful, |
13 | | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
15 | | * Lesser General Public License for more details. |
16 | | * |
17 | | * You should have received a copy of the GNU Lesser General |
18 | | * Public License along with this library; if not, see <http://www.gnu.org/licenses/>. |
19 | | * |
20 | | * Author: Alexander Larsson <alexl@redhat.com> |
21 | | */ |
22 | | |
23 | | #include "config.h" |
24 | | |
25 | | #include <stdint.h> |
26 | | #include <string.h> |
27 | | |
28 | | #include "gfileattribute.h" |
29 | | #include "gfileattribute-priv.h" |
30 | | #include <glib-object.h> |
31 | | #include "glibintl.h" |
32 | | |
33 | | |
34 | | /** |
35 | | * _g_file_attribute_value_free: |
36 | | * @attr: a #GFileAttributeValue. |
37 | | * |
38 | | * Frees the memory used by @attr. |
39 | | * |
40 | | **/ |
41 | | void |
42 | | _g_file_attribute_value_free (GFileAttributeValue *attr) |
43 | 0 | { |
44 | 0 | g_return_if_fail (attr != NULL); |
45 | | |
46 | 0 | _g_file_attribute_value_clear (attr); |
47 | 0 | g_free (attr); |
48 | 0 | } |
49 | | |
50 | | /** |
51 | | * _g_file_attribute_value_clear: |
52 | | * @attr: a #GFileAttributeValue. |
53 | | * |
54 | | * Clears the value of @attr and sets its type to |
55 | | * %G_FILE_ATTRIBUTE_TYPE_INVALID. |
56 | | * |
57 | | **/ |
58 | | void |
59 | | _g_file_attribute_value_clear (GFileAttributeValue *attr) |
60 | 0 | { |
61 | 0 | g_return_if_fail (attr != NULL); |
62 | | |
63 | 0 | if (attr->type == G_FILE_ATTRIBUTE_TYPE_STRING || |
64 | 0 | attr->type == G_FILE_ATTRIBUTE_TYPE_BYTE_STRING) |
65 | 0 | g_free (attr->u.string); |
66 | |
|
67 | 0 | if (attr->type == G_FILE_ATTRIBUTE_TYPE_STRINGV) |
68 | 0 | g_strfreev (attr->u.stringv); |
69 | |
|
70 | 0 | if (attr->type == G_FILE_ATTRIBUTE_TYPE_OBJECT && |
71 | 0 | attr->u.obj != NULL) |
72 | 0 | g_object_unref (attr->u.obj); |
73 | |
|
74 | 0 | attr->type = G_FILE_ATTRIBUTE_TYPE_INVALID; |
75 | 0 | } |
76 | | |
77 | | /** |
78 | | * g_file_attribute_value_set: |
79 | | * @attr: a #GFileAttributeValue to set the value in. |
80 | | * @new_value: a #GFileAttributeValue to get the value from. |
81 | | * |
82 | | * Sets an attribute's value from another attribute. |
83 | | **/ |
84 | | void |
85 | | _g_file_attribute_value_set (GFileAttributeValue *attr, |
86 | | const GFileAttributeValue *new_value) |
87 | 0 | { |
88 | 0 | g_return_if_fail (attr != NULL); |
89 | 0 | g_return_if_fail (new_value != NULL); |
90 | | |
91 | 0 | _g_file_attribute_value_clear (attr); |
92 | 0 | *attr = *new_value; |
93 | |
|
94 | 0 | if (attr->type == G_FILE_ATTRIBUTE_TYPE_STRING || |
95 | 0 | attr->type == G_FILE_ATTRIBUTE_TYPE_BYTE_STRING) |
96 | 0 | attr->u.string = g_strdup (attr->u.string); |
97 | |
|
98 | 0 | if (attr->type == G_FILE_ATTRIBUTE_TYPE_STRINGV) |
99 | 0 | attr->u.stringv = g_strdupv (attr->u.stringv); |
100 | |
|
101 | 0 | if (attr->type == G_FILE_ATTRIBUTE_TYPE_OBJECT && |
102 | 0 | attr->u.obj != NULL) |
103 | 0 | g_object_ref (attr->u.obj); |
104 | 0 | } |
105 | | |
106 | | /** |
107 | | * _g_file_attribute_value_new: |
108 | | * |
109 | | * Creates a new file attribute. |
110 | | * |
111 | | * Returns: a #GFileAttributeValue. |
112 | | **/ |
113 | | GFileAttributeValue * |
114 | | _g_file_attribute_value_new (void) |
115 | 0 | { |
116 | 0 | GFileAttributeValue *attr; |
117 | |
|
118 | 0 | attr = g_new (GFileAttributeValue, 1); |
119 | 0 | attr->type = G_FILE_ATTRIBUTE_TYPE_INVALID; |
120 | 0 | return attr; |
121 | 0 | } |
122 | | |
123 | | gpointer |
124 | | _g_file_attribute_value_peek_as_pointer (GFileAttributeValue *attr) |
125 | 0 | { |
126 | 0 | switch (attr->type) { |
127 | 0 | case G_FILE_ATTRIBUTE_TYPE_STRING: |
128 | 0 | case G_FILE_ATTRIBUTE_TYPE_BYTE_STRING: |
129 | 0 | return attr->u.string; |
130 | 0 | case G_FILE_ATTRIBUTE_TYPE_STRINGV: |
131 | 0 | return attr->u.stringv; |
132 | 0 | case G_FILE_ATTRIBUTE_TYPE_OBJECT: |
133 | 0 | return attr->u.obj; |
134 | 0 | default: |
135 | 0 | return (gpointer) &attr->u; |
136 | 0 | } |
137 | 0 | } |
138 | | |
139 | | /** |
140 | | * g_file_attribute_value_dup: |
141 | | * @other: a #GFileAttributeValue to duplicate. |
142 | | * |
143 | | * Duplicates a file attribute. |
144 | | * |
145 | | * Returns: a duplicate of the @other. |
146 | | **/ |
147 | | GFileAttributeValue * |
148 | | _g_file_attribute_value_dup (const GFileAttributeValue *other) |
149 | 0 | { |
150 | 0 | GFileAttributeValue *attr; |
151 | |
|
152 | 0 | g_return_val_if_fail (other != NULL, NULL); |
153 | | |
154 | 0 | attr = g_new (GFileAttributeValue, 1); |
155 | 0 | attr->type = G_FILE_ATTRIBUTE_TYPE_INVALID; |
156 | 0 | _g_file_attribute_value_set (attr, other); |
157 | 0 | return attr; |
158 | 0 | } |
159 | | |
160 | 0 | G_DEFINE_BOXED_TYPE (GFileAttributeInfoList, g_file_attribute_info_list, |
161 | 0 | g_file_attribute_info_list_dup, |
162 | 0 | g_file_attribute_info_list_unref) |
163 | 0 |
|
164 | 0 | static gboolean |
165 | 0 | valid_char (char c) |
166 | 0 | { |
167 | 0 | return c >= 32 && c <= 126 && c != '\\'; |
168 | 0 | } |
169 | | |
170 | | /* Returns NULL on error */ |
171 | | static char * |
172 | | escape_byte_string (const char *str) |
173 | 0 | { |
174 | 0 | size_t i, len; |
175 | 0 | size_t num_invalid; |
176 | 0 | char *escaped_val, *p; |
177 | 0 | char c; |
178 | 0 | const char hex_digits[] = "0123456789abcdef"; |
179 | |
|
180 | 0 | len = strlen (str); |
181 | |
|
182 | 0 | num_invalid = 0; |
183 | 0 | for (i = 0; i < len; i++) |
184 | 0 | { |
185 | 0 | if (!valid_char (str[i])) |
186 | 0 | num_invalid++; |
187 | 0 | } |
188 | |
|
189 | 0 | if (num_invalid == 0) |
190 | 0 | return g_strdup (str); |
191 | 0 | else |
192 | 0 | { |
193 | | /* Check for overflow. We want to check the inequality: |
194 | | * !(len + num_invalid * 3 + 1 > SIZE_MAX) */ |
195 | 0 | if (num_invalid >= (SIZE_MAX - len) / 3) |
196 | 0 | return NULL; |
197 | | |
198 | 0 | escaped_val = g_malloc (len + num_invalid * 3 + 1); |
199 | |
|
200 | 0 | p = escaped_val; |
201 | 0 | for (i = 0; i < len; i++) |
202 | 0 | { |
203 | 0 | c = str[i]; |
204 | 0 | if (valid_char (c)) |
205 | 0 | *p++ = c; |
206 | 0 | else |
207 | 0 | { |
208 | 0 | *p++ = '\\'; |
209 | 0 | *p++ = 'x'; |
210 | 0 | *p++ = hex_digits[(c >> 4) & 0xf]; |
211 | 0 | *p++ = hex_digits[c & 0xf]; |
212 | 0 | } |
213 | 0 | } |
214 | 0 | *p++ = 0; |
215 | 0 | return escaped_val; |
216 | 0 | } |
217 | 0 | } |
218 | | |
219 | | /** |
220 | | * _g_file_attribute_value_as_string: |
221 | | * @attr: a #GFileAttributeValue. |
222 | | * |
223 | | * Converts a #GFileAttributeValue to a string for display. |
224 | | * The returned string should be freed when no longer needed. |
225 | | * |
226 | | * Returns: a string from the @attr, %NULL on error, or "<invalid>" |
227 | | * if @attr is of type %G_FILE_ATTRIBUTE_TYPE_INVALID. |
228 | | */ |
229 | | char * |
230 | | _g_file_attribute_value_as_string (const GFileAttributeValue *attr) |
231 | 0 | { |
232 | 0 | GString *s; |
233 | 0 | int i; |
234 | 0 | char *str; |
235 | |
|
236 | 0 | g_return_val_if_fail (attr != NULL, NULL); |
237 | | |
238 | 0 | switch (attr->type) |
239 | 0 | { |
240 | 0 | case G_FILE_ATTRIBUTE_TYPE_STRING: |
241 | 0 | str = g_strdup (attr->u.string); |
242 | 0 | break; |
243 | 0 | case G_FILE_ATTRIBUTE_TYPE_STRINGV: |
244 | 0 | s = g_string_new ("["); |
245 | 0 | for (i = 0; attr->u.stringv[i] != NULL; i++) |
246 | 0 | { |
247 | 0 | g_string_append (s, attr->u.stringv[i]); |
248 | 0 | if (attr->u.stringv[i+1] != NULL) |
249 | 0 | g_string_append (s, ", "); |
250 | 0 | } |
251 | 0 | g_string_append (s, "]"); |
252 | 0 | str = g_string_free (s, FALSE); |
253 | 0 | break; |
254 | 0 | case G_FILE_ATTRIBUTE_TYPE_BYTE_STRING: |
255 | 0 | str = escape_byte_string (attr->u.string); |
256 | 0 | break; |
257 | 0 | case G_FILE_ATTRIBUTE_TYPE_BOOLEAN: |
258 | 0 | str = g_strdup_printf ("%s", attr->u.boolean?"TRUE":"FALSE"); |
259 | 0 | break; |
260 | 0 | case G_FILE_ATTRIBUTE_TYPE_UINT32: |
261 | 0 | str = g_strdup_printf ("%u", (unsigned int)attr->u.uint32); |
262 | 0 | break; |
263 | 0 | case G_FILE_ATTRIBUTE_TYPE_INT32: |
264 | 0 | str = g_strdup_printf ("%i", (int)attr->u.int32); |
265 | 0 | break; |
266 | 0 | case G_FILE_ATTRIBUTE_TYPE_UINT64: |
267 | 0 | str = g_strdup_printf ("%"G_GUINT64_FORMAT, attr->u.uint64); |
268 | 0 | break; |
269 | 0 | case G_FILE_ATTRIBUTE_TYPE_INT64: |
270 | 0 | str = g_strdup_printf ("%"G_GINT64_FORMAT, attr->u.int64); |
271 | 0 | break; |
272 | 0 | case G_FILE_ATTRIBUTE_TYPE_OBJECT: |
273 | 0 | str = g_strdup_printf ("%s:%p", g_type_name_from_instance |
274 | 0 | ((GTypeInstance *) attr->u.obj), |
275 | 0 | attr->u.obj); |
276 | 0 | break; |
277 | 0 | case G_FILE_ATTRIBUTE_TYPE_INVALID: |
278 | 0 | str = g_strdup ("<unset>"); |
279 | 0 | break; |
280 | 0 | default: |
281 | 0 | g_warning ("Invalid type in GFileInfo attribute"); |
282 | 0 | str = g_strdup ("<invalid>"); |
283 | 0 | break; |
284 | 0 | } |
285 | | |
286 | 0 | return str; |
287 | 0 | } |
288 | | |
289 | | /** |
290 | | * _g_file_attribute_value_get_string: |
291 | | * @attr: a #GFileAttributeValue. |
292 | | * |
293 | | * Gets the string from a file attribute value. If the value is not the |
294 | | * right type then %NULL will be returned. |
295 | | * |
296 | | * Returns: the UTF-8 string value contained within the attribute, or %NULL. |
297 | | */ |
298 | | const char * |
299 | | _g_file_attribute_value_get_string (const GFileAttributeValue *attr) |
300 | 0 | { |
301 | 0 | if (attr == NULL) |
302 | 0 | return NULL; |
303 | | |
304 | 0 | g_return_val_if_fail (attr->type == G_FILE_ATTRIBUTE_TYPE_STRING, NULL); |
305 | | |
306 | 0 | return attr->u.string; |
307 | 0 | } |
308 | | |
309 | | /** |
310 | | * _g_file_attribute_value_get_byte_string: |
311 | | * @attr: a #GFileAttributeValue. |
312 | | * |
313 | | * Gets the byte string from a file attribute value. If the value is not the |
314 | | * right type then %NULL will be returned. |
315 | | * |
316 | | * Returns: the byte string contained within the attribute or %NULL. |
317 | | */ |
318 | | const char * |
319 | | _g_file_attribute_value_get_byte_string (const GFileAttributeValue *attr) |
320 | 0 | { |
321 | 0 | if (attr == NULL) |
322 | 0 | return NULL; |
323 | | |
324 | 0 | g_return_val_if_fail (attr->type == G_FILE_ATTRIBUTE_TYPE_BYTE_STRING, NULL); |
325 | | |
326 | 0 | return attr->u.string; |
327 | 0 | } |
328 | | |
329 | | char ** |
330 | | _g_file_attribute_value_get_stringv (const GFileAttributeValue *attr) |
331 | 0 | { |
332 | 0 | if (attr == NULL) |
333 | 0 | return NULL; |
334 | | |
335 | 0 | g_return_val_if_fail (attr->type == G_FILE_ATTRIBUTE_TYPE_STRINGV, NULL); |
336 | | |
337 | 0 | return attr->u.stringv; |
338 | 0 | } |
339 | | |
340 | | /** |
341 | | * _g_file_attribute_value_get_boolean: |
342 | | * @attr: a #GFileAttributeValue. |
343 | | * |
344 | | * Gets the boolean value from a file attribute value. If the value is not the |
345 | | * right type then %FALSE will be returned. |
346 | | * |
347 | | * Returns: the boolean value contained within the attribute, or %FALSE. |
348 | | */ |
349 | | gboolean |
350 | | _g_file_attribute_value_get_boolean (const GFileAttributeValue *attr) |
351 | 0 | { |
352 | 0 | if (attr == NULL) |
353 | 0 | return FALSE; |
354 | | |
355 | 0 | g_return_val_if_fail (attr->type == G_FILE_ATTRIBUTE_TYPE_BOOLEAN, FALSE); |
356 | | |
357 | 0 | return attr->u.boolean; |
358 | 0 | } |
359 | | |
360 | | /** |
361 | | * _g_file_attribute_value_get_uint32: |
362 | | * @attr: a #GFileAttributeValue. |
363 | | * |
364 | | * Gets the unsigned 32-bit integer from a file attribute value. If the value |
365 | | * is not the right type then 0 will be returned. |
366 | | * |
367 | | * Returns: the unsigned 32-bit integer from the attribute, or 0. |
368 | | */ |
369 | | guint32 |
370 | | _g_file_attribute_value_get_uint32 (const GFileAttributeValue *attr) |
371 | 0 | { |
372 | 0 | if (attr == NULL) |
373 | 0 | return 0; |
374 | | |
375 | 0 | g_return_val_if_fail (attr->type == G_FILE_ATTRIBUTE_TYPE_UINT32, 0); |
376 | | |
377 | 0 | return attr->u.uint32; |
378 | 0 | } |
379 | | |
380 | | /** |
381 | | * _g_file_attribute_value_get_int32: |
382 | | * @attr: a #GFileAttributeValue. |
383 | | * |
384 | | * Gets the signed 32-bit integer from a file attribute value. If the value |
385 | | * is not the right type then 0 will be returned. |
386 | | * |
387 | | * Returns: the signed 32-bit integer from the attribute, or 0. |
388 | | */ |
389 | | gint32 |
390 | | _g_file_attribute_value_get_int32 (const GFileAttributeValue *attr) |
391 | 0 | { |
392 | 0 | if (attr == NULL) |
393 | 0 | return 0; |
394 | | |
395 | 0 | g_return_val_if_fail (attr->type == G_FILE_ATTRIBUTE_TYPE_INT32, 0); |
396 | | |
397 | 0 | return attr->u.int32; |
398 | 0 | } |
399 | | |
400 | | /** |
401 | | * _g_file_attribute_value_get_uint64: |
402 | | * @attr: a #GFileAttributeValue. |
403 | | * |
404 | | * Gets the unsigned 64-bit integer from a file attribute value. If the value |
405 | | * is not the right type then 0 will be returned. |
406 | | * |
407 | | * Returns: the unsigned 64-bit integer from the attribute, or 0. |
408 | | */ |
409 | | guint64 |
410 | | _g_file_attribute_value_get_uint64 (const GFileAttributeValue *attr) |
411 | 0 | { |
412 | 0 | if (attr == NULL) |
413 | 0 | return 0; |
414 | | |
415 | 0 | g_return_val_if_fail (attr->type == G_FILE_ATTRIBUTE_TYPE_UINT64, 0); |
416 | | |
417 | 0 | return attr->u.uint64; |
418 | 0 | } |
419 | | |
420 | | /** |
421 | | * _g_file_attribute_value_get_int64: |
422 | | * @attr: a #GFileAttributeValue. |
423 | | * |
424 | | * Gets the signed 64-bit integer from a file attribute value. If the value |
425 | | * is not the right type then 0 will be returned. |
426 | | * |
427 | | * Returns: the signed 64-bit integer from the attribute, or 0. |
428 | | */ |
429 | | gint64 |
430 | | _g_file_attribute_value_get_int64 (const GFileAttributeValue *attr) |
431 | 0 | { |
432 | 0 | if (attr == NULL) |
433 | 0 | return 0; |
434 | | |
435 | 0 | g_return_val_if_fail (attr->type == G_FILE_ATTRIBUTE_TYPE_INT64, 0); |
436 | | |
437 | 0 | return attr->u.int64; |
438 | 0 | } |
439 | | |
440 | | /** |
441 | | * _g_file_attribute_value_get_object: |
442 | | * @attr: a #GFileAttributeValue. |
443 | | * |
444 | | * Gets the GObject from a file attribute value. If the value |
445 | | * is not the right type then %NULL will be returned. |
446 | | * |
447 | | * Returns: the GObject from the attribute, or %NULL. |
448 | | **/ |
449 | | GObject * |
450 | | _g_file_attribute_value_get_object (const GFileAttributeValue *attr) |
451 | 0 | { |
452 | 0 | if (attr == NULL) |
453 | 0 | return NULL; |
454 | | |
455 | 0 | g_return_val_if_fail (attr->type == G_FILE_ATTRIBUTE_TYPE_OBJECT, NULL); |
456 | | |
457 | 0 | return attr->u.obj; |
458 | 0 | } |
459 | | |
460 | | |
461 | | void |
462 | | _g_file_attribute_value_set_from_pointer (GFileAttributeValue *value, |
463 | | GFileAttributeType type, |
464 | | gpointer value_p, |
465 | | gboolean dup) |
466 | 0 | { |
467 | 0 | _g_file_attribute_value_clear (value); |
468 | 0 | value->type = type; |
469 | 0 | switch (type) |
470 | 0 | { |
471 | 0 | case G_FILE_ATTRIBUTE_TYPE_STRING: |
472 | 0 | case G_FILE_ATTRIBUTE_TYPE_BYTE_STRING: |
473 | 0 | if (dup) |
474 | 0 | value->u.string = g_strdup (value_p); |
475 | 0 | else |
476 | 0 | value->u.string = value_p; |
477 | 0 | break; |
478 | | |
479 | 0 | case G_FILE_ATTRIBUTE_TYPE_STRINGV: |
480 | 0 | if (dup) |
481 | 0 | value->u.stringv = g_strdupv (value_p); |
482 | 0 | else |
483 | 0 | value->u.stringv = value_p; |
484 | 0 | break; |
485 | | |
486 | 0 | case G_FILE_ATTRIBUTE_TYPE_OBJECT: |
487 | 0 | if (dup) |
488 | 0 | value->u.obj = g_object_ref (value_p); |
489 | 0 | else |
490 | 0 | value->u.obj = value_p; |
491 | 0 | break; |
492 | | |
493 | 0 | case G_FILE_ATTRIBUTE_TYPE_BOOLEAN: |
494 | 0 | value->u.boolean = *(gboolean *)value_p; |
495 | 0 | break; |
496 | | |
497 | 0 | case G_FILE_ATTRIBUTE_TYPE_UINT32: |
498 | 0 | value->u.uint32 = *(guint32 *)value_p; |
499 | 0 | break; |
500 | | |
501 | 0 | case G_FILE_ATTRIBUTE_TYPE_INT32: |
502 | 0 | value->u.int32 = *(gint32 *)value_p; |
503 | 0 | break; |
504 | | |
505 | 0 | case G_FILE_ATTRIBUTE_TYPE_UINT64: |
506 | 0 | value->u.uint64 = *(guint64 *)value_p; |
507 | 0 | break; |
508 | | |
509 | 0 | case G_FILE_ATTRIBUTE_TYPE_INT64: |
510 | 0 | value->u.int64 = *(gint64 *)value_p; |
511 | 0 | break; |
512 | | |
513 | 0 | case G_FILE_ATTRIBUTE_TYPE_INVALID: |
514 | 0 | break; |
515 | | |
516 | 0 | default: |
517 | 0 | g_warning ("Unknown type specified in g_file_info_set_attribute"); |
518 | 0 | break; |
519 | 0 | } |
520 | 0 | } |
521 | | |
522 | | /** |
523 | | * _g_file_attribute_value_set_string: |
524 | | * @attr: a #GFileAttributeValue. |
525 | | * @string: a UTF-8 string to set within the type. |
526 | | * |
527 | | * Sets the attribute value to a given UTF-8 string. |
528 | | */ |
529 | | void |
530 | | _g_file_attribute_value_set_string (GFileAttributeValue *attr, |
531 | | const char *string) |
532 | 0 | { |
533 | 0 | g_return_if_fail (attr != NULL); |
534 | 0 | g_return_if_fail (string != NULL); |
535 | | |
536 | 0 | _g_file_attribute_value_clear (attr); |
537 | 0 | attr->type = G_FILE_ATTRIBUTE_TYPE_STRING; |
538 | 0 | attr->u.string = g_strdup (string); |
539 | 0 | } |
540 | | |
541 | | /** |
542 | | * _g_file_attribute_value_set_byte_string: |
543 | | * @attr: a #GFileAttributeValue. |
544 | | * @string: a byte string to set within the type. |
545 | | * |
546 | | * Sets the attribute value to a given byte string. |
547 | | */ |
548 | | void |
549 | | _g_file_attribute_value_set_byte_string (GFileAttributeValue *attr, |
550 | | const char *string) |
551 | 0 | { |
552 | 0 | g_return_if_fail (attr != NULL); |
553 | 0 | g_return_if_fail (string != NULL); |
554 | | |
555 | 0 | _g_file_attribute_value_clear (attr); |
556 | 0 | attr->type = G_FILE_ATTRIBUTE_TYPE_BYTE_STRING; |
557 | 0 | attr->u.string = g_strdup (string); |
558 | 0 | } |
559 | | |
560 | | void |
561 | | _g_file_attribute_value_set_stringv (GFileAttributeValue *attr, |
562 | | char **value) |
563 | 0 | { |
564 | 0 | g_return_if_fail (attr != NULL); |
565 | 0 | g_return_if_fail (value != NULL); |
566 | | |
567 | 0 | _g_file_attribute_value_clear (attr); |
568 | 0 | attr->type = G_FILE_ATTRIBUTE_TYPE_STRINGV; |
569 | 0 | attr->u.stringv = g_strdupv (value); |
570 | 0 | } |
571 | | |
572 | | |
573 | | /** |
574 | | * _g_file_attribute_value_set_boolean: |
575 | | * @attr: a #GFileAttributeValue. |
576 | | * @value: a #gboolean to set within the type. |
577 | | * |
578 | | * Sets the attribute value to the given boolean value. |
579 | | */ |
580 | | void |
581 | | _g_file_attribute_value_set_boolean (GFileAttributeValue *attr, |
582 | | gboolean value) |
583 | 0 | { |
584 | 0 | g_return_if_fail (attr != NULL); |
585 | | |
586 | 0 | _g_file_attribute_value_clear (attr); |
587 | 0 | attr->type = G_FILE_ATTRIBUTE_TYPE_BOOLEAN; |
588 | 0 | attr->u.boolean = !!value; |
589 | 0 | } |
590 | | |
591 | | /** |
592 | | * _g_file_attribute_value_set_uint32: |
593 | | * @attr: a #GFileAttributeValue. |
594 | | * @value: a #guint32 to set within the type. |
595 | | * |
596 | | * Sets the attribute value to the given unsigned 32-bit integer. |
597 | | */ |
598 | | void |
599 | | _g_file_attribute_value_set_uint32 (GFileAttributeValue *attr, |
600 | | guint32 value) |
601 | 0 | { |
602 | 0 | g_return_if_fail (attr != NULL); |
603 | | |
604 | 0 | _g_file_attribute_value_clear (attr); |
605 | 0 | attr->type = G_FILE_ATTRIBUTE_TYPE_UINT32; |
606 | 0 | attr->u.uint32 = value; |
607 | 0 | } |
608 | | |
609 | | /** |
610 | | * _g_file_attribute_value_set_int32: |
611 | | * @attr: a #GFileAttributeValue. |
612 | | * @value: a #gint32 to set within the type. |
613 | | * |
614 | | * Sets the attribute value to the given signed 32-bit integer. |
615 | | */ |
616 | | void |
617 | | _g_file_attribute_value_set_int32 (GFileAttributeValue *attr, |
618 | | gint32 value) |
619 | 0 | { |
620 | 0 | g_return_if_fail (attr != NULL); |
621 | | |
622 | 0 | _g_file_attribute_value_clear (attr); |
623 | 0 | attr->type = G_FILE_ATTRIBUTE_TYPE_INT32; |
624 | 0 | attr->u.int32 = value; |
625 | 0 | } |
626 | | |
627 | | /** |
628 | | * _g_file_attribute_value_set_uint64: |
629 | | * @attr: a #GFileAttributeValue. |
630 | | * @value: a #guint64 to set within the type. |
631 | | * |
632 | | * Sets the attribute value to a given unsigned 64-bit integer. |
633 | | */ |
634 | | void |
635 | | _g_file_attribute_value_set_uint64 (GFileAttributeValue *attr, |
636 | | guint64 value) |
637 | 0 | { |
638 | 0 | g_return_if_fail (attr != NULL); |
639 | | |
640 | 0 | _g_file_attribute_value_clear (attr); |
641 | 0 | attr->type = G_FILE_ATTRIBUTE_TYPE_UINT64; |
642 | 0 | attr->u.uint64 = value; |
643 | 0 | } |
644 | | |
645 | | /** |
646 | | * _g_file_attribute_value_set_int64: |
647 | | * @attr: a #GFileAttributeValue. |
648 | | * @value: a #gint64 to set within the type. |
649 | | * |
650 | | * Sets the attribute value to a given signed 64-bit integer. |
651 | | */ |
652 | | void |
653 | | _g_file_attribute_value_set_int64 (GFileAttributeValue *attr, |
654 | | gint64 value) |
655 | 0 | { |
656 | 0 | g_return_if_fail (attr != NULL); |
657 | | |
658 | 0 | _g_file_attribute_value_clear (attr); |
659 | 0 | attr->type = G_FILE_ATTRIBUTE_TYPE_INT64; |
660 | 0 | attr->u.int64 = value; |
661 | 0 | } |
662 | | |
663 | | /** |
664 | | * _g_file_attribute_value_set_object: |
665 | | * @attr: a #GFileAttributeValue. |
666 | | * @obj: a #GObject. |
667 | | * |
668 | | * Sets the attribute to contain the value @obj. |
669 | | * The @attr references the GObject internally. |
670 | | */ |
671 | | void |
672 | | _g_file_attribute_value_set_object (GFileAttributeValue *attr, |
673 | | GObject *obj) |
674 | 0 | { |
675 | 0 | g_return_if_fail (attr != NULL); |
676 | 0 | g_return_if_fail (obj != NULL); |
677 | | |
678 | 0 | _g_file_attribute_value_clear (attr); |
679 | 0 | attr->type = G_FILE_ATTRIBUTE_TYPE_OBJECT; |
680 | 0 | attr->u.obj = g_object_ref (obj); |
681 | 0 | } |
682 | | |
683 | | typedef struct { |
684 | | GFileAttributeInfoList public; |
685 | | GArray *array; |
686 | | int ref_count; |
687 | | } GFileAttributeInfoListPriv; |
688 | | |
689 | | static void |
690 | | list_update_public (GFileAttributeInfoListPriv *priv) |
691 | 0 | { |
692 | 0 | priv->public.infos = (GFileAttributeInfo *)priv->array->data; |
693 | | |
694 | | /* The `n_infos` member should really have type `size_t`, but by a historical |
695 | | * accident it has type `int` and we can’t change it now because it’s public |
696 | | * API. It should never end up with a negative value at runtime. */ |
697 | 0 | g_assert (priv->array->len <= INT_MAX); |
698 | 0 | priv->public.n_infos = (int) priv->array->len; |
699 | 0 | } |
700 | | |
701 | | /** |
702 | | * g_file_attribute_info_list_new: |
703 | | * |
704 | | * Creates a new file attribute info list. |
705 | | * |
706 | | * Returns: a #GFileAttributeInfoList. |
707 | | */ |
708 | | GFileAttributeInfoList * |
709 | | g_file_attribute_info_list_new (void) |
710 | 0 | { |
711 | 0 | GFileAttributeInfoListPriv *priv; |
712 | |
|
713 | 0 | priv = g_new0 (GFileAttributeInfoListPriv, 1); |
714 | |
|
715 | 0 | priv->ref_count = 1; |
716 | 0 | priv->array = g_array_new (TRUE, FALSE, sizeof (GFileAttributeInfo)); |
717 | |
|
718 | 0 | list_update_public (priv); |
719 | |
|
720 | 0 | return (GFileAttributeInfoList *)priv; |
721 | 0 | } |
722 | | |
723 | | /** |
724 | | * g_file_attribute_info_list_dup: |
725 | | * @list: a #GFileAttributeInfoList to duplicate. |
726 | | * |
727 | | * Makes a duplicate of a file attribute info list. |
728 | | * |
729 | | * Returns: a copy of the given @list. |
730 | | */ |
731 | | GFileAttributeInfoList * |
732 | | g_file_attribute_info_list_dup (GFileAttributeInfoList *list) |
733 | 0 | { |
734 | 0 | GFileAttributeInfoListPriv *new; |
735 | 0 | int i; |
736 | |
|
737 | 0 | g_return_val_if_fail (list != NULL, NULL); |
738 | | |
739 | 0 | new = g_new0 (GFileAttributeInfoListPriv, 1); |
740 | 0 | new->ref_count = 1; |
741 | 0 | new->array = g_array_new (TRUE, FALSE, sizeof (GFileAttributeInfo)); |
742 | |
|
743 | 0 | g_array_set_size (new->array, (unsigned int) list->n_infos); |
744 | 0 | list_update_public (new); |
745 | 0 | for (i = 0; i < list->n_infos; i++) |
746 | 0 | { |
747 | 0 | new->public.infos[i].name = g_strdup (list->infos[i].name); |
748 | 0 | new->public.infos[i].type = list->infos[i].type; |
749 | 0 | new->public.infos[i].flags = list->infos[i].flags; |
750 | 0 | } |
751 | |
|
752 | 0 | return (GFileAttributeInfoList *)new; |
753 | 0 | } |
754 | | |
755 | | /** |
756 | | * g_file_attribute_info_list_ref: |
757 | | * @list: a #GFileAttributeInfoList to reference. |
758 | | * |
759 | | * References a file attribute info list. |
760 | | * |
761 | | * Returns: #GFileAttributeInfoList or %NULL on error. |
762 | | */ |
763 | | GFileAttributeInfoList * |
764 | | g_file_attribute_info_list_ref (GFileAttributeInfoList *list) |
765 | 0 | { |
766 | 0 | GFileAttributeInfoListPriv *priv = (GFileAttributeInfoListPriv *)list; |
767 | 0 | int old_ref_count; |
768 | |
|
769 | 0 | g_return_val_if_fail (list != NULL, NULL); |
770 | | |
771 | 0 | old_ref_count = g_atomic_int_add (&priv->ref_count, 1); |
772 | 0 | g_return_val_if_fail (old_ref_count > 0, NULL); |
773 | | |
774 | 0 | return list; |
775 | 0 | } |
776 | | |
777 | | /** |
778 | | * g_file_attribute_info_list_unref: |
779 | | * @list: The #GFileAttributeInfoList to unreference. |
780 | | * |
781 | | * Removes a reference from the given @list. If the reference count |
782 | | * falls to zero, the @list is deleted. |
783 | | */ |
784 | | void |
785 | | g_file_attribute_info_list_unref (GFileAttributeInfoList *list) |
786 | 0 | { |
787 | 0 | GFileAttributeInfoListPriv *priv = (GFileAttributeInfoListPriv *)list; |
788 | 0 | int i; |
789 | |
|
790 | 0 | g_return_if_fail (list != NULL); |
791 | 0 | g_return_if_fail (priv->ref_count > 0); |
792 | | |
793 | 0 | if (g_atomic_int_dec_and_test (&priv->ref_count)) |
794 | 0 | { |
795 | 0 | for (i = 0; i < list->n_infos; i++) |
796 | 0 | g_free (list->infos[i].name); |
797 | 0 | g_array_free (priv->array, TRUE); |
798 | 0 | g_free (list); |
799 | 0 | } |
800 | 0 | } |
801 | | |
802 | | static int |
803 | | g_file_attribute_info_list_bsearch (GFileAttributeInfoList *list, |
804 | | const char *name) |
805 | 0 | { |
806 | 0 | int start, end, mid; |
807 | |
|
808 | 0 | start = 0; |
809 | 0 | end = list->n_infos; |
810 | |
|
811 | 0 | while (start != end) |
812 | 0 | { |
813 | 0 | mid = start + (end - start) / 2; |
814 | |
|
815 | 0 | if (strcmp (name, list->infos[mid].name) < 0) |
816 | 0 | end = mid; |
817 | 0 | else if (strcmp (name, list->infos[mid].name) > 0) |
818 | 0 | start = mid + 1; |
819 | 0 | else |
820 | 0 | return mid; |
821 | 0 | } |
822 | 0 | return start; |
823 | 0 | } |
824 | | |
825 | | /** |
826 | | * g_file_attribute_info_list_lookup: |
827 | | * @list: a #GFileAttributeInfoList. |
828 | | * @name: the name of the attribute to look up. |
829 | | * |
830 | | * Gets the file attribute with the name @name from @list. |
831 | | * |
832 | | * Returns: a #GFileAttributeInfo for the @name, or %NULL if an |
833 | | * attribute isn't found. |
834 | | */ |
835 | | const GFileAttributeInfo * |
836 | | g_file_attribute_info_list_lookup (GFileAttributeInfoList *list, |
837 | | const char *name) |
838 | 0 | { |
839 | 0 | int i; |
840 | |
|
841 | 0 | g_return_val_if_fail (list != NULL, NULL); |
842 | 0 | g_return_val_if_fail (name != NULL, NULL); |
843 | | |
844 | 0 | i = g_file_attribute_info_list_bsearch (list, name); |
845 | |
|
846 | 0 | if (i < list->n_infos && strcmp (list->infos[i].name, name) == 0) |
847 | 0 | return &list->infos[i]; |
848 | | |
849 | 0 | return NULL; |
850 | 0 | } |
851 | | |
852 | | /** |
853 | | * g_file_attribute_info_list_add: |
854 | | * @list: a #GFileAttributeInfoList. |
855 | | * @name: the name of the attribute to add. |
856 | | * @type: the #GFileAttributeType for the attribute. |
857 | | * @flags: #GFileAttributeInfoFlags for the attribute. |
858 | | * |
859 | | * Adds a new attribute with @name to the @list, setting |
860 | | * its @type and @flags. |
861 | | */ |
862 | | void |
863 | | g_file_attribute_info_list_add (GFileAttributeInfoList *list, |
864 | | const char *name, |
865 | | GFileAttributeType type, |
866 | | GFileAttributeInfoFlags flags) |
867 | 0 | { |
868 | 0 | GFileAttributeInfoListPriv *priv = (GFileAttributeInfoListPriv *)list; |
869 | 0 | GFileAttributeInfo info; |
870 | 0 | int i; |
871 | |
|
872 | 0 | g_return_if_fail (list != NULL); |
873 | 0 | g_return_if_fail (name != NULL); |
874 | | |
875 | 0 | i = g_file_attribute_info_list_bsearch (list, name); |
876 | |
|
877 | 0 | if (i < list->n_infos && strcmp (list->infos[i].name, name) == 0) |
878 | 0 | { |
879 | 0 | list->infos[i].type = type; |
880 | 0 | return; |
881 | 0 | } |
882 | | |
883 | 0 | g_assert (i >= 0); |
884 | | |
885 | 0 | info.name = g_strdup (name); |
886 | 0 | info.type = type; |
887 | 0 | info.flags = flags; |
888 | 0 | g_array_insert_vals (priv->array, (unsigned int) i, &info, 1); |
889 | |
|
890 | 0 | list_update_public (priv); |
891 | 0 | } |