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
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
|
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en-US">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=11"/>
<meta name="generator" content="Doxygen 1.9.8"/>
<meta name="viewport" content="width=device-width, initial-scale=1"/>
<title>libfuse: fuse_config Struct Reference</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="dynsections.js"></script>
<link href="doxygen.css" rel="stylesheet" type="text/css" />
</head>
<body>
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
<div id="titlearea">
<table cellspacing="0" cellpadding="0">
<tbody>
<tr id="projectrow">
<td id="projectalign">
<div id="projectname">libfuse
</div>
</td>
</tr>
</tbody>
</table>
</div>
<!-- end header part -->
<!-- Generated by Doxygen 1.9.8 -->
<script type="text/javascript" src="menudata.js"></script>
<script type="text/javascript" src="menu.js"></script>
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&dn=expat.txt MIT */
$(function() {
initMenu('',false,false,'search.php','Search');
});
/* @license-end */
</script>
<div id="main-nav"></div>
</div><!-- top -->
<div class="header">
<div class="summary">
<a href="#pub-attribs">Data Fields</a> </div>
<div class="headertitle"><div class="title">fuse_config Struct Reference</div></div>
</div><!--header-->
<div class="contents">
<p><code>#include <<a class="el" href="fuse-3_817_83_2include_2fuse_8h_source.html">fuse.h</a>></code></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="pub-attribs" name="pub-attribs"></a>
Data Fields</h2></td></tr>
<tr class="memitem:adfe1595209b0819c4a25ee520e945490" id="r_adfe1595209b0819c4a25ee520e945490"><td class="memItemLeft" align="right" valign="top">int32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structfuse__config.html#adfe1595209b0819c4a25ee520e945490">set_gid</a></td></tr>
<tr class="separator:adfe1595209b0819c4a25ee520e945490"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ae150aa13b87c7c3c0d172bd06e0e3a77" id="r_ae150aa13b87c7c3c0d172bd06e0e3a77"><td class="memItemLeft" align="right" valign="top">int32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structfuse__config.html#ae150aa13b87c7c3c0d172bd06e0e3a77">set_uid</a></td></tr>
<tr class="separator:ae150aa13b87c7c3c0d172bd06e0e3a77"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aa1be6b140bc335a461742e3a94909e25" id="r_aa1be6b140bc335a461742e3a94909e25"><td class="memItemLeft" align="right" valign="top">int32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structfuse__config.html#aa1be6b140bc335a461742e3a94909e25">set_mode</a></td></tr>
<tr class="separator:aa1be6b140bc335a461742e3a94909e25"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a9bc2e3b1d8a4410215cd620553e61b62" id="r_a9bc2e3b1d8a4410215cd620553e61b62"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="structfuse__config.html#a9bc2e3b1d8a4410215cd620553e61b62">entry_timeout</a></td></tr>
<tr class="separator:a9bc2e3b1d8a4410215cd620553e61b62"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ab4205f7343afe6e20edfbfb64cb90248" id="r_ab4205f7343afe6e20edfbfb64cb90248"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="structfuse__config.html#ab4205f7343afe6e20edfbfb64cb90248">negative_timeout</a></td></tr>
<tr class="separator:ab4205f7343afe6e20edfbfb64cb90248"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aeba85551d9498ca85fa2bf13b5e78eda" id="r_aeba85551d9498ca85fa2bf13b5e78eda"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="structfuse__config.html#aeba85551d9498ca85fa2bf13b5e78eda">attr_timeout</a></td></tr>
<tr class="separator:aeba85551d9498ca85fa2bf13b5e78eda"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ab0d21c64c22d2ffde62964f60594d9d8" id="r_ab0d21c64c22d2ffde62964f60594d9d8"><td class="memItemLeft" align="right" valign="top">int32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structfuse__config.html#ab0d21c64c22d2ffde62964f60594d9d8">intr</a></td></tr>
<tr class="separator:ab0d21c64c22d2ffde62964f60594d9d8"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a72b46234f1a7d5d4f7a089ad41249224" id="r_a72b46234f1a7d5d4f7a089ad41249224"><td class="memItemLeft" align="right" valign="top">int32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structfuse__config.html#a72b46234f1a7d5d4f7a089ad41249224">intr_signal</a></td></tr>
<tr class="separator:a72b46234f1a7d5d4f7a089ad41249224"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a74bd5b920dca4b454857042e17669159" id="r_a74bd5b920dca4b454857042e17669159"><td class="memItemLeft" align="right" valign="top">int32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structfuse__config.html#a74bd5b920dca4b454857042e17669159">remember</a></td></tr>
<tr class="separator:a74bd5b920dca4b454857042e17669159"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ae78b050abb9e687b69dcd722e9b10789" id="r_ae78b050abb9e687b69dcd722e9b10789"><td class="memItemLeft" align="right" valign="top">int32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structfuse__config.html#ae78b050abb9e687b69dcd722e9b10789">hard_remove</a></td></tr>
<tr class="separator:ae78b050abb9e687b69dcd722e9b10789"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a80ab01a84b8cb4856e80d676a0c22e1b" id="r_a80ab01a84b8cb4856e80d676a0c22e1b"><td class="memItemLeft" align="right" valign="top">int32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structfuse__config.html#a80ab01a84b8cb4856e80d676a0c22e1b">use_ino</a></td></tr>
<tr class="separator:a80ab01a84b8cb4856e80d676a0c22e1b"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a7f61fa32609cb872d0df8b0e502b5717" id="r_a7f61fa32609cb872d0df8b0e502b5717"><td class="memItemLeft" align="right" valign="top">int32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structfuse__config.html#a7f61fa32609cb872d0df8b0e502b5717">readdir_ino</a></td></tr>
<tr class="separator:a7f61fa32609cb872d0df8b0e502b5717"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a4d90d2f5008d4c5b92d461f25b1b4467" id="r_a4d90d2f5008d4c5b92d461f25b1b4467"><td class="memItemLeft" align="right" valign="top">int32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structfuse__config.html#a4d90d2f5008d4c5b92d461f25b1b4467">direct_io</a></td></tr>
<tr class="separator:a4d90d2f5008d4c5b92d461f25b1b4467"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a753831a638f9f9e01a9de417e0781e62" id="r_a753831a638f9f9e01a9de417e0781e62"><td class="memItemLeft" align="right" valign="top">int32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structfuse__config.html#a753831a638f9f9e01a9de417e0781e62">kernel_cache</a></td></tr>
<tr class="separator:a753831a638f9f9e01a9de417e0781e62"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aa74ee0373c0ffca7352709551009d458" id="r_aa74ee0373c0ffca7352709551009d458"><td class="memItemLeft" align="right" valign="top">int32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structfuse__config.html#aa74ee0373c0ffca7352709551009d458">auto_cache</a></td></tr>
<tr class="separator:aa74ee0373c0ffca7352709551009d458"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a6a8f97a8c16b8c5d6614c85c952e7c5f" id="r_a6a8f97a8c16b8c5d6614c85c952e7c5f"><td class="memItemLeft" align="right" valign="top">int32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structfuse__config.html#a6a8f97a8c16b8c5d6614c85c952e7c5f">nullpath_ok</a></td></tr>
<tr class="separator:a6a8f97a8c16b8c5d6614c85c952e7c5f"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a0f4fff78450a567ceb7814a8f7bc362a" id="r_a0f4fff78450a567ceb7814a8f7bc362a"><td class="memItemLeft" align="right" valign="top">int32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structfuse__config.html#a0f4fff78450a567ceb7814a8f7bc362a">show_help</a></td></tr>
<tr class="separator:a0f4fff78450a567ceb7814a8f7bc362a"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a03f5c82342f3afda52607eb6dfa12a31" id="r_a03f5c82342f3afda52607eb6dfa12a31"><td class="memItemLeft" align="right" valign="top">uint32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structfuse__config.html#a03f5c82342f3afda52607eb6dfa12a31">fmask</a></td></tr>
<tr class="separator:a03f5c82342f3afda52607eb6dfa12a31"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a582582a6434419fd05c37f1e2aa210ab" id="r_a582582a6434419fd05c37f1e2aa210ab"><td class="memItemLeft" align="right" valign="top">int32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structfuse__config.html#a582582a6434419fd05c37f1e2aa210ab">no_rofd_flush</a></td></tr>
<tr class="separator:a582582a6434419fd05c37f1e2aa210ab"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a6d422125d26dd186aa7ddec86d41d8f1" id="r_a6d422125d26dd186aa7ddec86d41d8f1"><td class="memItemLeft" align="right" valign="top">int32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structfuse__config.html#a6d422125d26dd186aa7ddec86d41d8f1">parallel_direct_writes</a></td></tr>
<tr class="separator:a6d422125d26dd186aa7ddec86d41d8f1"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a3401a4d21c955d67accc52a9385269fd" id="r_a3401a4d21c955d67accc52a9385269fd"><td class="memItemLeft" align="right" valign="top">uint32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structfuse__config.html#a3401a4d21c955d67accc52a9385269fd">flags</a></td></tr>
<tr class="separator:a3401a4d21c955d67accc52a9385269fd"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aaf6097b65c094cb773a8412ecbc29ba3" id="r_aaf6097b65c094cb773a8412ecbc29ba3"><td class="memItemLeft" align="right" valign="top">uint64_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structfuse__config.html#aaf6097b65c094cb773a8412ecbc29ba3">reserved</a> [48]</td></tr>
<tr class="separator:aaf6097b65c094cb773a8412ecbc29ba3"><td class="memSeparator" colspan="2"> </td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Configuration of the high-level API</p>
<p>This structure is initialized from the arguments passed to fuse_new(), and then passed to the file system's init() handler which should ensure that the configuration is compatible with the file system implementation.</p>
<p>Note: this data structure is ABI sensitive, new options have to be appended at the end of the structure </p>
<p class="definition">Definition at line <a class="el" href="fuse-3_817_83_2include_2fuse_8h_source.html#l00101">101</a> of file <a class="el" href="fuse-3_817_83_2include_2fuse_8h_source.html">fuse.h</a>.</p>
</div><h2 class="groupheader">Field Documentation</h2>
<a id="aeba85551d9498ca85fa2bf13b5e78eda" name="aeba85551d9498ca85fa2bf13b5e78eda"></a>
<h2 class="memtitle"><span class="permalink"><a href="#aeba85551d9498ca85fa2bf13b5e78eda">◆ </a></span>attr_timeout</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">double fuse_config::attr_timeout</td>
</tr>
</table>
</div><div class="memdoc">
<p>The timeout in seconds for which file/directory attributes (as returned by e.g. the <code>getattr</code> handler) are cached. </p>
<p class="definition">Definition at line <a class="el" href="fuse-3_817_83_2include_2fuse_8h_source.html#l00143">143</a> of file <a class="el" href="fuse-3_817_83_2include_2fuse_8h_source.html">fuse.h</a>.</p>
</div>
</div>
<a id="aa74ee0373c0ffca7352709551009d458" name="aa74ee0373c0ffca7352709551009d458"></a>
<h2 class="memtitle"><span class="permalink"><a href="#aa74ee0373c0ffca7352709551009d458">◆ </a></span>auto_cache</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int32_t fuse_config::auto_cache</td>
</tr>
</table>
</div><div class="memdoc">
<p>This option is an alternative to <code>kernel_cache</code>. Instead of unconditionally keeping cached data, the cached data is invalidated on open(2) if if the modification time or the size of the file has changed since it was last opened. </p>
<p class="definition">Definition at line <a class="el" href="fuse-3_817_83_2include_2fuse_8h_source.html#l00253">253</a> of file <a class="el" href="fuse-3_817_83_2include_2fuse_8h_source.html">fuse.h</a>.</p>
</div>
</div>
<a id="a4d90d2f5008d4c5b92d461f25b1b4467" name="a4d90d2f5008d4c5b92d461f25b1b4467"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a4d90d2f5008d4c5b92d461f25b1b4467">◆ </a></span>direct_io</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int32_t fuse_config::direct_io</td>
</tr>
</table>
</div><div class="memdoc">
<p>This option disables the use of page cache (file content cache) in the kernel for this filesystem. This has several affects:</p>
<ol type="1">
<li>Each read(2) or write(2) system call will initiate one or more read or write operations, data will not be cached in the kernel.</li>
<li>The return value of the read() and write() system calls will correspond to the return values of the read and write operations. This is useful for example if the file size is not known in advance (before reading it).</li>
</ol>
<p>Internally, enabling this option causes fuse to set the <code>direct_io</code> field of <code>struct <a class="el" href="structfuse__file__info.html">fuse_file_info</a></code> - overwriting any value that was put there by the file system. </p>
<p class="definition">Definition at line <a class="el" href="fuse-3_817_83_2include_2fuse_8h_source.html#l00226">226</a> of file <a class="el" href="fuse-3_817_83_2include_2fuse_8h_source.html">fuse.h</a>.</p>
</div>
</div>
<a id="a9bc2e3b1d8a4410215cd620553e61b62" name="a9bc2e3b1d8a4410215cd620553e61b62"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a9bc2e3b1d8a4410215cd620553e61b62">◆ </a></span>entry_timeout</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">double fuse_config::entry_timeout</td>
</tr>
</table>
</div><div class="memdoc">
<p>The timeout in seconds for which name lookups will be cached. </p>
<p class="definition">Definition at line <a class="el" href="fuse-3_817_83_2include_2fuse_8h_source.html#l00127">127</a> of file <a class="el" href="fuse-3_817_83_2include_2fuse_8h_source.html">fuse.h</a>.</p>
</div>
</div>
<a id="a3401a4d21c955d67accc52a9385269fd" name="a3401a4d21c955d67accc52a9385269fd"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a3401a4d21c955d67accc52a9385269fd">◆ </a></span>flags</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">uint32_t fuse_config::flags</td>
</tr>
</table>
</div><div class="memdoc">
<p>Reserved for future use. </p>
<p class="definition">Definition at line <a class="el" href="fuse-3_817_83_2include_2fuse_8h_source.html#l00318">318</a> of file <a class="el" href="fuse-3_817_83_2include_2fuse_8h_source.html">fuse.h</a>.</p>
</div>
</div>
<a id="a03f5c82342f3afda52607eb6dfa12a31" name="a03f5c82342f3afda52607eb6dfa12a31"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a03f5c82342f3afda52607eb6dfa12a31">◆ </a></span>fmask</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">uint32_t fuse_config::fmask</td>
</tr>
</table>
</div><div class="memdoc">
<p><code>fmask</code> and <code>dmask</code> function the same way as <code>umask</code>, but apply to files and directories separately. If non-zero, <code>fmask</code> and <code>dmask</code> take precedence over the <code>umask</code> setting. </p>
<p class="definition">Definition at line <a class="el" href="fuse-3_817_83_2include_2fuse_8h_source.html#l00288">288</a> of file <a class="el" href="fuse-3_817_83_2include_2fuse_8h_source.html">fuse.h</a>.</p>
</div>
</div>
<a id="ae78b050abb9e687b69dcd722e9b10789" name="ae78b050abb9e687b69dcd722e9b10789"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ae78b050abb9e687b69dcd722e9b10789">◆ </a></span>hard_remove</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int32_t fuse_config::hard_remove</td>
</tr>
</table>
</div><div class="memdoc">
<p>The default behavior is that if an open file is deleted, the file is renamed to a hidden file (.fuse_hiddenXXX), and only removed when the file is finally released. This relieves the filesystem implementation of having to deal with this problem. This option disables the hiding behavior, and files are removed immediately in an unlink operation (or in a rename operation which overwrites an existing file).</p>
<p>It is recommended that you not use the hard_remove option. When hard_remove is set, the following libc functions fail on unlinked files (returning errno of ENOENT): read(2), write(2), fsync(2), close(2), f*xattr(2), ftruncate(2), fstat(2), fchmod(2), fchown(2) </p>
<p class="definition">Definition at line <a class="el" href="fuse-3_817_83_2include_2fuse_8h_source.html#l00185">185</a> of file <a class="el" href="fuse-3_817_83_2include_2fuse_8h_source.html">fuse.h</a>.</p>
</div>
</div>
<a id="ab0d21c64c22d2ffde62964f60594d9d8" name="ab0d21c64c22d2ffde62964f60594d9d8"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ab0d21c64c22d2ffde62964f60594d9d8">◆ </a></span>intr</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int32_t fuse_config::intr</td>
</tr>
</table>
</div><div class="memdoc">
<p>Allow requests to be interrupted </p>
<p class="definition">Definition at line <a class="el" href="fuse-3_817_83_2include_2fuse_8h_source.html#l00148">148</a> of file <a class="el" href="fuse-3_817_83_2include_2fuse_8h_source.html">fuse.h</a>.</p>
</div>
</div>
<a id="a72b46234f1a7d5d4f7a089ad41249224" name="a72b46234f1a7d5d4f7a089ad41249224"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a72b46234f1a7d5d4f7a089ad41249224">◆ </a></span>intr_signal</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int32_t fuse_config::intr_signal</td>
</tr>
</table>
</div><div class="memdoc">
<p>Specify which signal number to send to the filesystem when a request is interrupted. The default is hardcoded to USR1. </p>
<p class="definition">Definition at line <a class="el" href="fuse-3_817_83_2include_2fuse_8h_source.html#l00155">155</a> of file <a class="el" href="fuse-3_817_83_2include_2fuse_8h_source.html">fuse.h</a>.</p>
</div>
</div>
<a id="a753831a638f9f9e01a9de417e0781e62" name="a753831a638f9f9e01a9de417e0781e62"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a753831a638f9f9e01a9de417e0781e62">◆ </a></span>kernel_cache</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int32_t fuse_config::kernel_cache</td>
</tr>
</table>
</div><div class="memdoc">
<p>This option disables flushing the cache of the file contents on every open(2). This should only be enabled on filesystems where the file data is never changed externally (not through the mounted FUSE filesystem). Thus it is not suitable for network filesystems and other intermediate filesystems.</p>
<p>NOTE: if this option is not specified (and neither direct_io) data is still cached after the open(2), so a read(2) system call will not always initiate a read operation.</p>
<p>Internally, enabling this option causes fuse to set the <code>keep_cache</code> field of <code>struct <a class="el" href="structfuse__file__info.html">fuse_file_info</a></code> - overwriting any value that was put there by the file system. </p>
<p class="definition">Definition at line <a class="el" href="fuse-3_817_83_2include_2fuse_8h_source.html#l00245">245</a> of file <a class="el" href="fuse-3_817_83_2include_2fuse_8h_source.html">fuse.h</a>.</p>
</div>
</div>
<a id="ab4205f7343afe6e20edfbfb64cb90248" name="ab4205f7343afe6e20edfbfb64cb90248"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ab4205f7343afe6e20edfbfb64cb90248">◆ </a></span>negative_timeout</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">double fuse_config::negative_timeout</td>
</tr>
</table>
</div><div class="memdoc">
<p>The timeout in seconds for which a negative lookup will be cached. This means, that if file did not exist (lookup returned ENOENT), the lookup will only be redone after the timeout, and the file/directory will be assumed to not exist until then. A value of zero means that negative lookups are not cached. </p>
<p class="definition">Definition at line <a class="el" href="fuse-3_817_83_2include_2fuse_8h_source.html#l00137">137</a> of file <a class="el" href="fuse-3_817_83_2include_2fuse_8h_source.html">fuse.h</a>.</p>
</div>
</div>
<a id="a582582a6434419fd05c37f1e2aa210ab" name="a582582a6434419fd05c37f1e2aa210ab"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a582582a6434419fd05c37f1e2aa210ab">◆ </a></span>no_rofd_flush</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int32_t fuse_config::no_rofd_flush</td>
</tr>
</table>
</div><div class="memdoc">
<p>By default, fuse waits for all pending writes to complete and calls the FLUSH operation on close(2) of every fuse fd. With this option, wait and FLUSH are not done for read-only fuse fd, similar to the behavior of NFS/SMB clients. </p>
<p class="definition">Definition at line <a class="el" href="fuse-3_817_83_2include_2fuse_8h_source.html#l00297">297</a> of file <a class="el" href="fuse-3_817_83_2include_2fuse_8h_source.html">fuse.h</a>.</p>
</div>
</div>
<a id="a6a8f97a8c16b8c5d6614c85c952e7c5f" name="a6a8f97a8c16b8c5d6614c85c952e7c5f"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a6a8f97a8c16b8c5d6614c85c952e7c5f">◆ </a></span>nullpath_ok</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int32_t fuse_config::nullpath_ok</td>
</tr>
</table>
</div><div class="memdoc">
<p>If this option is given the file-system handlers for the following operations will not receive path information: read, write, flush, release, fallocate, fsync, readdir, releasedir, fsyncdir, lock, ioctl and poll.</p>
<p>For the truncate, getattr, chmod, chown and utimens operations the path will be provided only if the struct <a class="el" href="structfuse__file__info.html">fuse_file_info</a> argument is NULL. </p>
<p class="definition">Definition at line <a class="el" href="fuse-3_817_83_2include_2fuse_8h_source.html#l00273">273</a> of file <a class="el" href="fuse-3_817_83_2include_2fuse_8h_source.html">fuse.h</a>.</p>
</div>
</div>
<a id="a6d422125d26dd186aa7ddec86d41d8f1" name="a6d422125d26dd186aa7ddec86d41d8f1"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a6d422125d26dd186aa7ddec86d41d8f1">◆ </a></span>parallel_direct_writes</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int32_t fuse_config::parallel_direct_writes</td>
</tr>
</table>
</div><div class="memdoc">
<p>Allow parallel direct-io writes to operate on the same file.</p>
<p>FUSE implementations which do not handle parallel writes on same file/region should NOT enable this option at all as it might lead to data inconsistencies.</p>
<p>For the FUSE implementations which have their own mechanism of cache/data integrity are beneficiaries of this setting as it now open doors to parallel writes on the same file (without enabling this setting, all direct writes on the same file are serialized, resulting in huge data bandwidth loss). </p>
<p class="definition">Definition at line <a class="el" href="fuse-3_817_83_2include_2fuse_8h_source.html#l00312">312</a> of file <a class="el" href="fuse-3_817_83_2include_2fuse_8h_source.html">fuse.h</a>.</p>
</div>
</div>
<a id="a7f61fa32609cb872d0df8b0e502b5717" name="a7f61fa32609cb872d0df8b0e502b5717"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a7f61fa32609cb872d0df8b0e502b5717">◆ </a></span>readdir_ino</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int32_t fuse_config::readdir_ino</td>
</tr>
</table>
</div><div class="memdoc">
<p>If use_ino option is not given, still try to fill in the d_ino field in readdir(2). If the name was previously looked up, and is still in the cache, the inode number found there will be used. Otherwise it will be set to -1. If use_ino option is given, this option is ignored. </p>
<p class="definition">Definition at line <a class="el" href="fuse-3_817_83_2include_2fuse_8h_source.html#l00207">207</a> of file <a class="el" href="fuse-3_817_83_2include_2fuse_8h_source.html">fuse.h</a>.</p>
</div>
</div>
<a id="a74bd5b920dca4b454857042e17669159" name="a74bd5b920dca4b454857042e17669159"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a74bd5b920dca4b454857042e17669159">◆ </a></span>remember</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int32_t fuse_config::remember</td>
</tr>
</table>
</div><div class="memdoc">
<p>Normally, FUSE assigns inodes to paths only for as long as the kernel is aware of them. With this option inodes are instead remembered for at least this many seconds. This will require more memory, but may be necessary when using applications that make use of inode numbers.</p>
<p>A number of -1 means that inodes will be remembered for the entire life-time of the file-system process. </p>
<p class="definition">Definition at line <a class="el" href="fuse-3_817_83_2include_2fuse_8h_source.html#l00167">167</a> of file <a class="el" href="fuse-3_817_83_2include_2fuse_8h_source.html">fuse.h</a>.</p>
</div>
</div>
<a id="aaf6097b65c094cb773a8412ecbc29ba3" name="aaf6097b65c094cb773a8412ecbc29ba3"></a>
<h2 class="memtitle"><span class="permalink"><a href="#aaf6097b65c094cb773a8412ecbc29ba3">◆ </a></span>reserved</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">uint64_t fuse_config::reserved</td>
</tr>
</table>
</div><div class="memdoc">
<p>Reserved for future use. </p>
<p class="definition">Definition at line <a class="el" href="fuse-3_817_83_2include_2fuse_8h_source.html#l00323">323</a> of file <a class="el" href="fuse-3_817_83_2include_2fuse_8h_source.html">fuse.h</a>.</p>
</div>
</div>
<a id="adfe1595209b0819c4a25ee520e945490" name="adfe1595209b0819c4a25ee520e945490"></a>
<h2 class="memtitle"><span class="permalink"><a href="#adfe1595209b0819c4a25ee520e945490">◆ </a></span>set_gid</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int32_t fuse_config::set_gid</td>
</tr>
</table>
</div><div class="memdoc">
<p>If <code>set_gid</code> is non-zero, the st_gid attribute of each file is overwritten with the value of <code>gid</code>. </p>
<p class="definition">Definition at line <a class="el" href="fuse-3_817_83_2include_2fuse_8h_source.html#l00106">106</a> of file <a class="el" href="fuse-3_817_83_2include_2fuse_8h_source.html">fuse.h</a>.</p>
</div>
</div>
<a id="aa1be6b140bc335a461742e3a94909e25" name="aa1be6b140bc335a461742e3a94909e25"></a>
<h2 class="memtitle"><span class="permalink"><a href="#aa1be6b140bc335a461742e3a94909e25">◆ </a></span>set_mode</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int32_t fuse_config::set_mode</td>
</tr>
</table>
</div><div class="memdoc">
<p>If <code>set_mode</code> is non-zero, the any permissions bits set in <code>umask</code> are unset in the st_mode attribute of each file. </p>
<p class="definition">Definition at line <a class="el" href="fuse-3_817_83_2include_2fuse_8h_source.html#l00120">120</a> of file <a class="el" href="fuse-3_817_83_2include_2fuse_8h_source.html">fuse.h</a>.</p>
</div>
</div>
<a id="ae150aa13b87c7c3c0d172bd06e0e3a77" name="ae150aa13b87c7c3c0d172bd06e0e3a77"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ae150aa13b87c7c3c0d172bd06e0e3a77">◆ </a></span>set_uid</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int32_t fuse_config::set_uid</td>
</tr>
</table>
</div><div class="memdoc">
<p>If <code>set_uid</code> is non-zero, the st_uid attribute of each file is overwritten with the value of <code>uid</code>. </p>
<p class="definition">Definition at line <a class="el" href="fuse-3_817_83_2include_2fuse_8h_source.html#l00113">113</a> of file <a class="el" href="fuse-3_817_83_2include_2fuse_8h_source.html">fuse.h</a>.</p>
</div>
</div>
<a id="a0f4fff78450a567ceb7814a8f7bc362a" name="a0f4fff78450a567ceb7814a8f7bc362a"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a0f4fff78450a567ceb7814a8f7bc362a">◆ </a></span>show_help</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int32_t fuse_config::show_help</td>
</tr>
</table>
</div><div class="memdoc">
<p>These 3 options are used by libfuse internally and should not be touched. </p>
<p class="definition">Definition at line <a class="el" href="fuse-3_817_83_2include_2fuse_8h_source.html#l00279">279</a> of file <a class="el" href="fuse-3_817_83_2include_2fuse_8h_source.html">fuse.h</a>.</p>
</div>
</div>
<a id="a80ab01a84b8cb4856e80d676a0c22e1b" name="a80ab01a84b8cb4856e80d676a0c22e1b"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a80ab01a84b8cb4856e80d676a0c22e1b">◆ </a></span>use_ino</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int32_t fuse_config::use_ino</td>
</tr>
</table>
</div><div class="memdoc">
<p>Honor the st_ino field in the functions getattr() and fill_dir(). This value is used to fill in the st_ino field in the stat(2), lstat(2), fstat(2) functions and the d_ino field in the readdir(2) function. The filesystem does not have to guarantee uniqueness, however some applications rely on this value being unique for the whole filesystem.</p>
<p>Note that this does <em>not</em> affect the inode that libfuse and the kernel use internally (also called the "nodeid"). </p>
<p class="definition">Definition at line <a class="el" href="fuse-3_817_83_2include_2fuse_8h_source.html#l00198">198</a> of file <a class="el" href="fuse-3_817_83_2include_2fuse_8h_source.html">fuse.h</a>.</p>
</div>
</div>
<hr/>The documentation for this struct was generated from the following files:<ul>
<li>fuse-3.17.3/include/<a class="el" href="fuse-3_817_83_2include_2fuse_8h_source.html">fuse.h</a></li>
<li>fuse-3.17.4/include/<a class="el" href="fuse-3_817_84_2include_2fuse_8h_source.html">fuse.h</a></li>
<li>include/<a class="el" href="include_2fuse_8h_source.html">fuse.h</a></li>
</ul>
</div><!-- contents -->
<!-- start footer part -->
<hr class="footer"/><address class="footer"><small>
Generated by <a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.8
</small></address>
</body>
</html>
|
