1 |
#include "EXTERN.h" |
2 |
#include "perl.h" |
3 |
#include "XSUB.h" |
4 |
|
5 |
#ifdef USE_ITHREADS |
6 |
# ifdef I_PTHREAD |
7 |
/* perl implements threads with pthread. So, we use the pthread API for |
8 |
* handling thread-local storage. */ |
9 |
# include <pthread.h> |
10 |
PerlInterpreter *master_interp = NULL; |
11 |
static inline void create_perl_context() { |
12 |
if(master_interp) { |
13 |
PerlInterpreter *me = PERL_GET_CONTEXT; |
14 |
if(!me) { |
15 |
PERL_SET_CONTEXT(master_interp); |
16 |
me = perl_clone(master_interp, CLONEf_CLONE_HOST); |
17 |
} |
18 |
} |
19 |
} |
20 |
# define FUSE_CONTEXT_PRE create_perl_context(); { |
21 |
# define FUSE_CONTEXT_POST } |
22 |
# define FUSE_USE_ITHREADS |
23 |
# else |
24 |
# error "Sorry, I don't know how to handle ithreads on this architecture." |
25 |
# endif |
26 |
#else |
27 |
# define FUSE_CONTEXT_PRE |
28 |
# define FUSE_CONTEXT_POST |
29 |
#endif |
30 |
#include <fuse.h> |
31 |
|
32 |
#undef DEBUGf |
33 |
#if 0 |
34 |
#define DEBUGf(f, a...) fprintf(stderr, "%s:%d (%i): " f,__BASE_FILE__,__LINE__,sp-PL_stack_base ,##a ) |
35 |
#else |
36 |
#define DEBUGf(a...) |
37 |
#endif |
38 |
|
39 |
#define N_CALLBACKS 25 |
40 |
SV *_PLfuse_callbacks[N_CALLBACKS]; |
41 |
|
42 |
int _PLfuse_getattr(const char *file, struct stat *result) { |
43 |
int rv; |
44 |
FUSE_CONTEXT_PRE; |
45 |
dSP; |
46 |
DEBUGf("getattr begin: %s\n",file); |
47 |
ENTER; |
48 |
SAVETMPS; |
49 |
PUSHMARK(SP); |
50 |
XPUSHs(sv_2mortal(newSVpv(file,strlen(file)))); |
51 |
PUTBACK; |
52 |
rv = call_sv(_PLfuse_callbacks[0],G_ARRAY); |
53 |
SPAGAIN; |
54 |
if(rv != 13) { |
55 |
if(rv > 1) { |
56 |
fprintf(stderr,"inappropriate number of returned values from getattr\n"); |
57 |
rv = -ENOSYS; |
58 |
} else if(rv) |
59 |
rv = POPi; |
60 |
else |
61 |
rv = -ENOENT; |
62 |
} else { |
63 |
result->st_blocks = POPi; |
64 |
result->st_blksize = POPi; |
65 |
result->st_ctime = POPi; |
66 |
result->st_mtime = POPi; |
67 |
result->st_atime = POPi; |
68 |
result->st_size = POPi; |
69 |
result->st_rdev = POPi; |
70 |
result->st_gid = POPi; |
71 |
result->st_uid = POPi; |
72 |
result->st_nlink = POPi; |
73 |
result->st_mode = POPi; |
74 |
result->st_ino = POPi; |
75 |
result->st_dev = POPi; |
76 |
rv = 0; |
77 |
} |
78 |
FREETMPS; |
79 |
LEAVE; |
80 |
PUTBACK; |
81 |
DEBUGf("getattr end: %i\n",rv); |
82 |
FUSE_CONTEXT_POST; |
83 |
return rv; |
84 |
} |
85 |
|
86 |
int _PLfuse_readlink(const char *file,char *buf,size_t buflen) { |
87 |
int rv; |
88 |
FUSE_CONTEXT_PRE; |
89 |
dSP; |
90 |
if(buflen < 1) |
91 |
return EINVAL; |
92 |
DEBUGf("readlink begin\n"); |
93 |
ENTER; |
94 |
SAVETMPS; |
95 |
PUSHMARK(SP); |
96 |
XPUSHs(sv_2mortal(newSVpv(file,0))); |
97 |
PUTBACK; |
98 |
rv = call_sv(_PLfuse_callbacks[1],G_SCALAR); |
99 |
SPAGAIN; |
100 |
if(!rv) |
101 |
rv = -ENOENT; |
102 |
else { |
103 |
SV *mysv = POPs; |
104 |
if(SvTYPE(mysv) == SVt_IV || SvTYPE(mysv) == SVt_NV) |
105 |
rv = SvIV(mysv); |
106 |
else { |
107 |
strncpy(buf,SvPV_nolen(mysv),buflen); |
108 |
rv = 0; |
109 |
} |
110 |
} |
111 |
FREETMPS; |
112 |
LEAVE; |
113 |
buf[buflen-1] = 0; |
114 |
PUTBACK; |
115 |
DEBUGf("readlink end: %i\n",rv); |
116 |
FUSE_CONTEXT_POST; |
117 |
return rv; |
118 |
} |
119 |
|
120 |
#if 0 |
121 |
/* |
122 |
* This doesn't yet work... we alwas get ENOSYS when trying to use readdir(). |
123 |
* Well, of course, getdir() is fine as well. |
124 |
*/ |
125 |
int _PLfuse_readdir(const char *file, void *dirh, fuse_fill_dir_t dirfil, off_t off, struct fuse_file_info *fi) { |
126 |
#endif |
127 |
int _PLfuse_getdir(const char *file, fuse_dirh_t dirh, fuse_dirfil_t dirfil) { |
128 |
int prv, rv; |
129 |
FUSE_CONTEXT_PRE; |
130 |
dSP; |
131 |
DEBUGf("getdir begin\n"); |
132 |
ENTER; |
133 |
SAVETMPS; |
134 |
PUSHMARK(SP); |
135 |
XPUSHs(sv_2mortal(newSVpv(file,0))); |
136 |
PUTBACK; |
137 |
prv = call_sv(_PLfuse_callbacks[2],G_ARRAY); |
138 |
SPAGAIN; |
139 |
if(prv) { |
140 |
rv = POPi; |
141 |
while(--prv) |
142 |
dirfil(dirh,POPp,0,0); |
143 |
} else { |
144 |
fprintf(stderr,"getdir() handler returned nothing!\n"); |
145 |
rv = -ENOSYS; |
146 |
} |
147 |
FREETMPS; |
148 |
LEAVE; |
149 |
PUTBACK; |
150 |
DEBUGf("getdir end: %i\n",rv); |
151 |
FUSE_CONTEXT_POST; |
152 |
return rv; |
153 |
} |
154 |
|
155 |
int _PLfuse_mknod (const char *file, mode_t mode, dev_t dev) { |
156 |
int rv; |
157 |
FUSE_CONTEXT_PRE; |
158 |
dSP; |
159 |
DEBUGf("mknod begin\n"); |
160 |
ENTER; |
161 |
SAVETMPS; |
162 |
PUSHMARK(SP); |
163 |
XPUSHs(sv_2mortal(newSVpv(file,0))); |
164 |
XPUSHs(sv_2mortal(newSViv(mode))); |
165 |
XPUSHs(sv_2mortal(newSViv(dev))); |
166 |
PUTBACK; |
167 |
rv = call_sv(_PLfuse_callbacks[3],G_SCALAR); |
168 |
SPAGAIN; |
169 |
if(rv) |
170 |
rv = POPi; |
171 |
else |
172 |
rv = 0; |
173 |
FREETMPS; |
174 |
LEAVE; |
175 |
PUTBACK; |
176 |
DEBUGf("mknod end: %i\n",rv); |
177 |
FUSE_CONTEXT_POST; |
178 |
return rv; |
179 |
} |
180 |
|
181 |
int _PLfuse_mkdir (const char *file, mode_t mode) { |
182 |
int rv; |
183 |
FUSE_CONTEXT_PRE; |
184 |
dSP; |
185 |
DEBUGf("mkdir begin\n"); |
186 |
ENTER; |
187 |
SAVETMPS; |
188 |
PUSHMARK(SP); |
189 |
XPUSHs(sv_2mortal(newSVpv(file,0))); |
190 |
XPUSHs(sv_2mortal(newSViv(mode))); |
191 |
PUTBACK; |
192 |
rv = call_sv(_PLfuse_callbacks[4],G_SCALAR); |
193 |
SPAGAIN; |
194 |
if(rv) |
195 |
rv = POPi; |
196 |
else |
197 |
rv = 0; |
198 |
FREETMPS; |
199 |
LEAVE; |
200 |
PUTBACK; |
201 |
DEBUGf("mkdir end: %i\n",rv); |
202 |
FUSE_CONTEXT_POST; |
203 |
return rv; |
204 |
} |
205 |
|
206 |
|
207 |
int _PLfuse_unlink (const char *file) { |
208 |
int rv; |
209 |
FUSE_CONTEXT_PRE; |
210 |
dSP; |
211 |
DEBUGf("unlink begin\n"); |
212 |
ENTER; |
213 |
SAVETMPS; |
214 |
PUSHMARK(SP); |
215 |
XPUSHs(sv_2mortal(newSVpv(file,0))); |
216 |
PUTBACK; |
217 |
rv = call_sv(_PLfuse_callbacks[5],G_SCALAR); |
218 |
SPAGAIN; |
219 |
if(rv) |
220 |
rv = POPi; |
221 |
else |
222 |
rv = 0; |
223 |
FREETMPS; |
224 |
LEAVE; |
225 |
PUTBACK; |
226 |
DEBUGf("unlink end: %i\n",rv); |
227 |
FUSE_CONTEXT_POST; |
228 |
return rv; |
229 |
} |
230 |
|
231 |
int _PLfuse_rmdir (const char *file) { |
232 |
int rv; |
233 |
FUSE_CONTEXT_PRE; |
234 |
dSP; |
235 |
DEBUGf("rmdir begin\n"); |
236 |
ENTER; |
237 |
SAVETMPS; |
238 |
PUSHMARK(SP); |
239 |
XPUSHs(sv_2mortal(newSVpv(file,0))); |
240 |
PUTBACK; |
241 |
rv = call_sv(_PLfuse_callbacks[6],G_SCALAR); |
242 |
SPAGAIN; |
243 |
if(rv) |
244 |
rv = POPi; |
245 |
else |
246 |
rv = 0; |
247 |
FREETMPS; |
248 |
LEAVE; |
249 |
PUTBACK; |
250 |
DEBUGf("rmdir end: %i\n",rv); |
251 |
FUSE_CONTEXT_POST; |
252 |
return rv; |
253 |
} |
254 |
|
255 |
int _PLfuse_symlink (const char *file, const char *new) { |
256 |
int rv; |
257 |
FUSE_CONTEXT_PRE; |
258 |
dSP; |
259 |
DEBUGf("symlink begin\n"); |
260 |
ENTER; |
261 |
SAVETMPS; |
262 |
PUSHMARK(SP); |
263 |
XPUSHs(sv_2mortal(newSVpv(file,0))); |
264 |
XPUSHs(sv_2mortal(newSVpv(new,0))); |
265 |
PUTBACK; |
266 |
rv = call_sv(_PLfuse_callbacks[7],G_SCALAR); |
267 |
SPAGAIN; |
268 |
if(rv) |
269 |
rv = POPi; |
270 |
else |
271 |
rv = 0; |
272 |
FREETMPS; |
273 |
LEAVE; |
274 |
PUTBACK; |
275 |
DEBUGf("symlink end: %i\n",rv); |
276 |
FUSE_CONTEXT_POST; |
277 |
return rv; |
278 |
} |
279 |
|
280 |
int _PLfuse_rename (const char *file, const char *new) { |
281 |
int rv; |
282 |
FUSE_CONTEXT_PRE; |
283 |
dSP; |
284 |
DEBUGf("rename begin\n"); |
285 |
ENTER; |
286 |
SAVETMPS; |
287 |
PUSHMARK(SP); |
288 |
XPUSHs(sv_2mortal(newSVpv(file,0))); |
289 |
XPUSHs(sv_2mortal(newSVpv(new,0))); |
290 |
PUTBACK; |
291 |
rv = call_sv(_PLfuse_callbacks[8],G_SCALAR); |
292 |
SPAGAIN; |
293 |
if(rv) |
294 |
rv = POPi; |
295 |
else |
296 |
rv = 0; |
297 |
FREETMPS; |
298 |
LEAVE; |
299 |
PUTBACK; |
300 |
DEBUGf("rename end: %i\n",rv); |
301 |
FUSE_CONTEXT_POST; |
302 |
return rv; |
303 |
} |
304 |
|
305 |
int _PLfuse_link (const char *file, const char *new) { |
306 |
int rv; |
307 |
FUSE_CONTEXT_PRE; |
308 |
dSP; |
309 |
DEBUGf("link begin\n"); |
310 |
ENTER; |
311 |
SAVETMPS; |
312 |
PUSHMARK(SP); |
313 |
XPUSHs(sv_2mortal(newSVpv(file,0))); |
314 |
XPUSHs(sv_2mortal(newSVpv(new,0))); |
315 |
PUTBACK; |
316 |
rv = call_sv(_PLfuse_callbacks[9],G_SCALAR); |
317 |
SPAGAIN; |
318 |
if(rv) |
319 |
rv = POPi; |
320 |
else |
321 |
rv = 0; |
322 |
FREETMPS; |
323 |
LEAVE; |
324 |
PUTBACK; |
325 |
DEBUGf("link end: %i\n",rv); |
326 |
FUSE_CONTEXT_POST; |
327 |
return rv; |
328 |
} |
329 |
|
330 |
int _PLfuse_chmod (const char *file, mode_t mode) { |
331 |
int rv; |
332 |
FUSE_CONTEXT_PRE; |
333 |
dSP; |
334 |
DEBUGf("chmod begin\n"); |
335 |
ENTER; |
336 |
SAVETMPS; |
337 |
PUSHMARK(SP); |
338 |
XPUSHs(sv_2mortal(newSVpv(file,0))); |
339 |
XPUSHs(sv_2mortal(newSViv(mode))); |
340 |
PUTBACK; |
341 |
rv = call_sv(_PLfuse_callbacks[10],G_SCALAR); |
342 |
SPAGAIN; |
343 |
if(rv) |
344 |
rv = POPi; |
345 |
else |
346 |
rv = 0; |
347 |
FREETMPS; |
348 |
LEAVE; |
349 |
PUTBACK; |
350 |
DEBUGf("chmod end: %i\n",rv); |
351 |
FUSE_CONTEXT_POST; |
352 |
return rv; |
353 |
} |
354 |
|
355 |
int _PLfuse_chown (const char *file, uid_t uid, gid_t gid) { |
356 |
int rv; |
357 |
FUSE_CONTEXT_PRE; |
358 |
dSP; |
359 |
DEBUGf("chown begin\n"); |
360 |
ENTER; |
361 |
SAVETMPS; |
362 |
PUSHMARK(SP); |
363 |
XPUSHs(sv_2mortal(newSVpv(file,0))); |
364 |
XPUSHs(sv_2mortal(newSViv(uid))); |
365 |
XPUSHs(sv_2mortal(newSViv(gid))); |
366 |
PUTBACK; |
367 |
rv = call_sv(_PLfuse_callbacks[11],G_SCALAR); |
368 |
SPAGAIN; |
369 |
if(rv) |
370 |
rv = POPi; |
371 |
else |
372 |
rv = 0; |
373 |
FREETMPS; |
374 |
LEAVE; |
375 |
PUTBACK; |
376 |
DEBUGf("chown end: %i\n",rv); |
377 |
FUSE_CONTEXT_POST; |
378 |
return rv; |
379 |
} |
380 |
|
381 |
int _PLfuse_truncate (const char *file, off_t off) { |
382 |
int rv; |
383 |
FUSE_CONTEXT_PRE; |
384 |
dSP; |
385 |
DEBUGf("truncate begin\n"); |
386 |
ENTER; |
387 |
SAVETMPS; |
388 |
PUSHMARK(SP); |
389 |
XPUSHs(sv_2mortal(newSVpv(file,0))); |
390 |
XPUSHs(sv_2mortal(newSViv(off))); |
391 |
PUTBACK; |
392 |
rv = call_sv(_PLfuse_callbacks[12],G_SCALAR); |
393 |
SPAGAIN; |
394 |
if(rv) |
395 |
rv = POPi; |
396 |
else |
397 |
rv = 0; |
398 |
FREETMPS; |
399 |
LEAVE; |
400 |
PUTBACK; |
401 |
DEBUGf("truncate end: %i\n",rv); |
402 |
FUSE_CONTEXT_POST; |
403 |
return rv; |
404 |
} |
405 |
|
406 |
int _PLfuse_utime (const char *file, struct utimbuf *uti) { |
407 |
int rv; |
408 |
FUSE_CONTEXT_PRE; |
409 |
dSP; |
410 |
DEBUGf("utime begin\n"); |
411 |
ENTER; |
412 |
SAVETMPS; |
413 |
PUSHMARK(SP); |
414 |
XPUSHs(sv_2mortal(newSVpv(file,0))); |
415 |
XPUSHs(sv_2mortal(newSViv(uti->actime))); |
416 |
XPUSHs(sv_2mortal(newSViv(uti->modtime))); |
417 |
PUTBACK; |
418 |
rv = call_sv(_PLfuse_callbacks[13],G_SCALAR); |
419 |
SPAGAIN; |
420 |
if(rv) |
421 |
rv = POPi; |
422 |
else |
423 |
rv = 0; |
424 |
FREETMPS; |
425 |
LEAVE; |
426 |
PUTBACK; |
427 |
DEBUGf("utime end: %i\n",rv); |
428 |
FUSE_CONTEXT_POST; |
429 |
return rv; |
430 |
} |
431 |
|
432 |
int _PLfuse_open (const char *file, struct fuse_file_info *fi) { |
433 |
int rv; |
434 |
int flags = fi->flags; |
435 |
FUSE_CONTEXT_PRE; |
436 |
dSP; |
437 |
DEBUGf("open begin\n"); |
438 |
ENTER; |
439 |
SAVETMPS; |
440 |
PUSHMARK(SP); |
441 |
XPUSHs(sv_2mortal(newSVpv(file,0))); |
442 |
XPUSHs(sv_2mortal(newSViv(flags))); |
443 |
PUTBACK; |
444 |
rv = call_sv(_PLfuse_callbacks[14],G_SCALAR); |
445 |
SPAGAIN; |
446 |
if(rv) |
447 |
rv = POPi; |
448 |
else |
449 |
rv = 0; |
450 |
FREETMPS; |
451 |
LEAVE; |
452 |
PUTBACK; |
453 |
DEBUGf("open end: %i\n",rv); |
454 |
FUSE_CONTEXT_POST; |
455 |
return rv; |
456 |
} |
457 |
|
458 |
int _PLfuse_read (const char *file, char *buf, size_t buflen, off_t off, struct fuse_file_info *fi) { |
459 |
int rv; |
460 |
FUSE_CONTEXT_PRE; |
461 |
dSP; |
462 |
DEBUGf("read begin\n"); |
463 |
ENTER; |
464 |
SAVETMPS; |
465 |
PUSHMARK(SP); |
466 |
XPUSHs(sv_2mortal(newSVpv(file,0))); |
467 |
XPUSHs(sv_2mortal(newSViv(buflen))); |
468 |
XPUSHs(sv_2mortal(newSViv(off))); |
469 |
PUTBACK; |
470 |
rv = call_sv(_PLfuse_callbacks[15],G_SCALAR); |
471 |
SPAGAIN; |
472 |
if(!rv) |
473 |
rv = -ENOENT; |
474 |
else { |
475 |
SV *mysv = POPs; |
476 |
if(SvTYPE(mysv) == SVt_NV || SvTYPE(mysv) == SVt_IV) |
477 |
rv = SvIV(mysv); |
478 |
else { |
479 |
if(SvPOK(mysv)) { |
480 |
rv = SvCUR(mysv); |
481 |
} else { |
482 |
rv = 0; |
483 |
} |
484 |
if(rv > buflen) |
485 |
croak("read() handler returned more than buflen! (%i > %i)",rv,buflen); |
486 |
if(rv) |
487 |
memcpy(buf,SvPV_nolen(mysv),rv); |
488 |
} |
489 |
} |
490 |
FREETMPS; |
491 |
LEAVE; |
492 |
PUTBACK; |
493 |
DEBUGf("read end: %i\n",rv); |
494 |
FUSE_CONTEXT_POST; |
495 |
return rv; |
496 |
} |
497 |
|
498 |
int _PLfuse_write (const char *file, const char *buf, size_t buflen, off_t off, struct fuse_file_info *fi) { |
499 |
int rv; |
500 |
FUSE_CONTEXT_PRE; |
501 |
dSP; |
502 |
DEBUGf("write begin\n"); |
503 |
ENTER; |
504 |
SAVETMPS; |
505 |
PUSHMARK(SP); |
506 |
XPUSHs(sv_2mortal(newSVpv(file,0))); |
507 |
XPUSHs(sv_2mortal(newSVpvn(buf,buflen))); |
508 |
XPUSHs(sv_2mortal(newSViv(off))); |
509 |
PUTBACK; |
510 |
rv = call_sv(_PLfuse_callbacks[16],G_SCALAR); |
511 |
SPAGAIN; |
512 |
if(rv) |
513 |
rv = POPi; |
514 |
else |
515 |
rv = 0; |
516 |
FREETMPS; |
517 |
LEAVE; |
518 |
PUTBACK; |
519 |
DEBUGf("write end: %i\n",rv); |
520 |
FUSE_CONTEXT_POST; |
521 |
return rv; |
522 |
} |
523 |
|
524 |
int _PLfuse_statfs (const char *file, struct statvfs *st) { |
525 |
int rv; |
526 |
FUSE_CONTEXT_PRE; |
527 |
dSP; |
528 |
DEBUGf("statfs begin\n"); |
529 |
ENTER; |
530 |
SAVETMPS; |
531 |
PUSHMARK(SP); |
532 |
PUTBACK; |
533 |
rv = call_sv(_PLfuse_callbacks[17],G_ARRAY); |
534 |
SPAGAIN; |
535 |
DEBUGf("statfs got %i params\n",rv); |
536 |
if(rv == 6 || rv == 7) { |
537 |
st->f_bsize = POPi; |
538 |
st->f_bfree = POPi; |
539 |
st->f_blocks = POPi; |
540 |
st->f_ffree = POPi; |
541 |
st->f_files = POPi; |
542 |
st->f_namemax = POPi; |
543 |
/* zero and fill-in other */ |
544 |
st->f_fsid = 0; |
545 |
st->f_frsize = 4096; |
546 |
st->f_flag = 0; |
547 |
st->f_bavail = st->f_bfree; |
548 |
st->f_favail = st->f_ffree; |
549 |
|
550 |
if(rv == 7) |
551 |
rv = POPi; |
552 |
else |
553 |
rv = 0; |
554 |
} else |
555 |
if(rv > 1) |
556 |
croak("inappropriate number of returned values from statfs"); |
557 |
else |
558 |
if(rv) |
559 |
rv = POPi; |
560 |
else |
561 |
rv = -ENOSYS; |
562 |
FREETMPS; |
563 |
LEAVE; |
564 |
PUTBACK; |
565 |
DEBUGf("statfs end: %i\n",rv); |
566 |
FUSE_CONTEXT_POST; |
567 |
return rv; |
568 |
} |
569 |
|
570 |
int _PLfuse_flush (const char *file, struct fuse_file_info *fi) { |
571 |
int rv; |
572 |
FUSE_CONTEXT_PRE; |
573 |
dSP; |
574 |
DEBUGf("flush begin\n"); |
575 |
ENTER; |
576 |
SAVETMPS; |
577 |
PUSHMARK(SP); |
578 |
XPUSHs(sv_2mortal(newSVpv(file,0))); |
579 |
PUTBACK; |
580 |
rv = call_sv(_PLfuse_callbacks[18],G_SCALAR); |
581 |
SPAGAIN; |
582 |
if(rv) |
583 |
rv = POPi; |
584 |
else |
585 |
rv = 0; |
586 |
FREETMPS; |
587 |
LEAVE; |
588 |
PUTBACK; |
589 |
DEBUGf("flush end: %i\n",rv); |
590 |
FUSE_CONTEXT_POST; |
591 |
return rv; |
592 |
} |
593 |
|
594 |
int _PLfuse_release (const char *file, struct fuse_file_info *fi) { |
595 |
int rv; |
596 |
int flags = fi->flags; |
597 |
FUSE_CONTEXT_PRE; |
598 |
dSP; |
599 |
DEBUGf("release begin\n"); |
600 |
ENTER; |
601 |
SAVETMPS; |
602 |
PUSHMARK(SP); |
603 |
XPUSHs(sv_2mortal(newSVpv(file,0))); |
604 |
XPUSHs(sv_2mortal(newSViv(flags))); |
605 |
PUTBACK; |
606 |
rv = call_sv(_PLfuse_callbacks[19],G_SCALAR); |
607 |
SPAGAIN; |
608 |
if(rv) |
609 |
rv = POPi; |
610 |
else |
611 |
rv = 0; |
612 |
FREETMPS; |
613 |
LEAVE; |
614 |
PUTBACK; |
615 |
DEBUGf("release end: %i\n",rv); |
616 |
FUSE_CONTEXT_POST; |
617 |
return rv; |
618 |
} |
619 |
|
620 |
int _PLfuse_fsync (const char *file, int datasync, struct fuse_file_info *fi) { |
621 |
int rv; |
622 |
int flags = fi->flags; |
623 |
FUSE_CONTEXT_PRE; |
624 |
dSP; |
625 |
DEBUGf("fsync begin\n"); |
626 |
ENTER; |
627 |
SAVETMPS; |
628 |
PUSHMARK(SP); |
629 |
XPUSHs(sv_2mortal(newSVpv(file,0))); |
630 |
XPUSHs(sv_2mortal(newSViv(flags))); |
631 |
PUTBACK; |
632 |
rv = call_sv(_PLfuse_callbacks[20],G_SCALAR); |
633 |
SPAGAIN; |
634 |
if(rv) |
635 |
rv = POPi; |
636 |
else |
637 |
rv = 0; |
638 |
FREETMPS; |
639 |
LEAVE; |
640 |
PUTBACK; |
641 |
DEBUGf("fsync end: %i\n",rv); |
642 |
FUSE_CONTEXT_POST; |
643 |
return rv; |
644 |
} |
645 |
|
646 |
int _PLfuse_setxattr (const char *file, const char *name, const char *buf, size_t buflen, int flags) { |
647 |
int rv; |
648 |
FUSE_CONTEXT_PRE; |
649 |
dSP; |
650 |
DEBUGf("setxattr begin\n"); |
651 |
ENTER; |
652 |
SAVETMPS; |
653 |
PUSHMARK(SP); |
654 |
XPUSHs(sv_2mortal(newSVpv(file,0))); |
655 |
XPUSHs(sv_2mortal(newSVpv(name,0))); |
656 |
XPUSHs(sv_2mortal(newSVpvn(buf,buflen))); |
657 |
XPUSHs(sv_2mortal(newSViv(flags))); |
658 |
PUTBACK; |
659 |
rv = call_sv(_PLfuse_callbacks[21],G_SCALAR); |
660 |
SPAGAIN; |
661 |
if(rv) |
662 |
rv = POPi; |
663 |
else |
664 |
rv = 0; |
665 |
FREETMPS; |
666 |
LEAVE; |
667 |
PUTBACK; |
668 |
DEBUGf("setxattr end: %i\n",rv); |
669 |
FUSE_CONTEXT_POST; |
670 |
return rv; |
671 |
} |
672 |
|
673 |
int _PLfuse_getxattr (const char *file, const char *name, char *buf, size_t buflen) { |
674 |
int rv; |
675 |
FUSE_CONTEXT_PRE; |
676 |
dSP; |
677 |
DEBUGf("getxattr begin\n"); |
678 |
ENTER; |
679 |
SAVETMPS; |
680 |
PUSHMARK(SP); |
681 |
XPUSHs(sv_2mortal(newSVpv(file,0))); |
682 |
XPUSHs(sv_2mortal(newSVpv(name,0))); |
683 |
PUTBACK; |
684 |
rv = call_sv(_PLfuse_callbacks[22],G_SCALAR); |
685 |
SPAGAIN; |
686 |
if(!rv) |
687 |
rv = -ENOENT; |
688 |
else { |
689 |
SV *mysv = POPs; |
690 |
|
691 |
rv = 0; |
692 |
if(SvTYPE(mysv) == SVt_NV || SvTYPE(mysv) == SVt_IV) |
693 |
rv = SvIV(mysv); |
694 |
else { |
695 |
if(SvPOK(mysv)) { |
696 |
rv = SvCUR(mysv); |
697 |
} else { |
698 |
rv = 0; |
699 |
} |
700 |
if ((rv > 0) && (buflen > 0)) |
701 |
{ |
702 |
if(rv > buflen) |
703 |
rv = -ERANGE; |
704 |
else |
705 |
memcpy(buf,SvPV_nolen(mysv),rv); |
706 |
} |
707 |
} |
708 |
} |
709 |
FREETMPS; |
710 |
LEAVE; |
711 |
PUTBACK; |
712 |
DEBUGf("getxattr end: %i\n",rv); |
713 |
FUSE_CONTEXT_POST; |
714 |
return rv; |
715 |
} |
716 |
|
717 |
int _PLfuse_listxattr (const char *file, char *list, size_t size) { |
718 |
int prv, rv; |
719 |
FUSE_CONTEXT_PRE; |
720 |
dSP; |
721 |
DEBUGf("listxattr begin\n"); |
722 |
ENTER; |
723 |
SAVETMPS; |
724 |
PUSHMARK(SP); |
725 |
XPUSHs(sv_2mortal(newSVpv(file,0))); |
726 |
PUTBACK; |
727 |
prv = call_sv(_PLfuse_callbacks[23],G_ARRAY); |
728 |
SPAGAIN; |
729 |
if(!prv) |
730 |
rv = -ENOENT; |
731 |
else { |
732 |
|
733 |
char *p = list; |
734 |
int spc = size; |
735 |
int total_len = 0; |
736 |
|
737 |
rv = POPi; |
738 |
prv--; |
739 |
|
740 |
/* Always nul terminate */ |
741 |
if (list && (size > 0)) |
742 |
list[0] = '\0'; |
743 |
|
744 |
while (prv > 0) |
745 |
{ |
746 |
SV *mysv = POPs; |
747 |
prv--; |
748 |
|
749 |
if (SvPOK(mysv)) { |
750 |
/* Copy nul too */ |
751 |
int s = SvCUR(mysv) + 1; |
752 |
total_len += s; |
753 |
|
754 |
if (p && (size > 0) && (spc >= s)) |
755 |
{ |
756 |
memcpy(p,SvPV_nolen(mysv),s); |
757 |
p += s; |
758 |
spc -= s; |
759 |
} |
760 |
} |
761 |
} |
762 |
|
763 |
/* |
764 |
* If the Perl returned an error, return that. |
765 |
* Otherwise check that the buffer was big enough. |
766 |
*/ |
767 |
if (rv == 0) |
768 |
{ |
769 |
rv = total_len; |
770 |
if ((size > 0) && (size < total_len)) |
771 |
rv = -ERANGE; |
772 |
} |
773 |
} |
774 |
FREETMPS; |
775 |
LEAVE; |
776 |
PUTBACK; |
777 |
DEBUGf("listxattr end: %i\n",rv); |
778 |
FUSE_CONTEXT_POST; |
779 |
return rv; |
780 |
} |
781 |
|
782 |
int _PLfuse_removexattr (const char *file, const char *name) { |
783 |
int rv; |
784 |
FUSE_CONTEXT_PRE; |
785 |
dSP; |
786 |
DEBUGf("removexattr begin\n"); |
787 |
ENTER; |
788 |
SAVETMPS; |
789 |
PUSHMARK(SP); |
790 |
XPUSHs(sv_2mortal(newSVpv(file,0))); |
791 |
XPUSHs(sv_2mortal(newSVpv(name,0))); |
792 |
PUTBACK; |
793 |
rv = call_sv(_PLfuse_callbacks[24],G_SCALAR); |
794 |
SPAGAIN; |
795 |
if(rv) |
796 |
rv = POPi; |
797 |
else |
798 |
rv = 0; |
799 |
FREETMPS; |
800 |
LEAVE; |
801 |
PUTBACK; |
802 |
DEBUGf("removexattr end: %i\n",rv); |
803 |
FUSE_CONTEXT_POST; |
804 |
return rv; |
805 |
} |
806 |
|
807 |
struct fuse_operations _available_ops = { |
808 |
getattr: _PLfuse_getattr, |
809 |
readlink: _PLfuse_readlink, |
810 |
getdir: _PLfuse_getdir, |
811 |
#if 0 |
812 |
readdir: _PLfuse_readdir, |
813 |
#endif |
814 |
mknod: _PLfuse_mknod, |
815 |
mkdir: _PLfuse_mkdir, |
816 |
unlink: _PLfuse_unlink, |
817 |
rmdir: _PLfuse_rmdir, |
818 |
symlink: _PLfuse_symlink, |
819 |
rename: _PLfuse_rename, |
820 |
link: _PLfuse_link, |
821 |
chmod: _PLfuse_chmod, |
822 |
chown: _PLfuse_chown, |
823 |
truncate: _PLfuse_truncate, |
824 |
utime: _PLfuse_utime, |
825 |
open: _PLfuse_open, |
826 |
read: _PLfuse_read, |
827 |
write: _PLfuse_write, |
828 |
statfs: _PLfuse_statfs, |
829 |
flush: _PLfuse_flush, |
830 |
release: _PLfuse_release, |
831 |
fsync: _PLfuse_fsync, |
832 |
setxattr: _PLfuse_setxattr, |
833 |
getxattr: _PLfuse_getxattr, |
834 |
listxattr: _PLfuse_listxattr, |
835 |
removexattr: _PLfuse_removexattr, |
836 |
}; |
837 |
|
838 |
MODULE = Fuse PACKAGE = Fuse |
839 |
PROTOTYPES: DISABLE |
840 |
|
841 |
void |
842 |
perl_fuse_main(...) |
843 |
PREINIT: |
844 |
struct fuse_operations fops = |
845 |
{NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL, |
846 |
NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL}; |
847 |
int i, fd, debug, threaded; |
848 |
char *mountpoint; |
849 |
char *mountopts; |
850 |
struct fuse_args margs = FUSE_ARGS_INIT(0, NULL); |
851 |
struct fuse_args fargs = FUSE_ARGS_INIT(0, NULL); |
852 |
INIT: |
853 |
if(items != 29) { |
854 |
fprintf(stderr,"Perl<->C inconsistency or internal error\n"); |
855 |
XSRETURN_UNDEF; |
856 |
} |
857 |
CODE: |
858 |
debug = SvIV(ST(0)); |
859 |
threaded = SvIV(ST(1)); |
860 |
if(threaded) { |
861 |
#ifdef FUSE_USE_ITHREADS |
862 |
master_interp = PERL_GET_INTERP; |
863 |
#else |
864 |
fprintf(stderr,"FUSE warning: Your script has requested multithreaded " |
865 |
"mode, but your perl was not built with -Dusethreads. " |
866 |
"Threads are disabled.\n"); |
867 |
threaded = 0; |
868 |
#endif |
869 |
} |
870 |
mountpoint = SvPV_nolen(ST(2)); |
871 |
mountopts = SvPV_nolen(ST(3)); |
872 |
for(i=0;i<N_CALLBACKS;i++) { |
873 |
SV *var = ST(i+4); |
874 |
/* allow symbolic references, or real code references. */ |
875 |
if(SvOK(var) && (SvPOK(var) || (SvROK(var) && SvTYPE(SvRV(var)) == SVt_PVCV))) { |
876 |
void **tmp1 = (void**)&_available_ops, **tmp2 = (void**)&fops; |
877 |
tmp2[i] = tmp1[i]; |
878 |
#ifdef FUSE_USE_ITHREADS |
879 |
if(threaded) |
880 |
/* note: under 5.8.7, this croaks for code references. */ |
881 |
SvSHARE(var); |
882 |
#endif |
883 |
_PLfuse_callbacks[i] = var; |
884 |
} else |
885 |
if(SvOK(var)) { |
886 |
croak("invalid callback passed to perl_fuse_main " |
887 |
"(%s is not a string, code ref, or undef).\n", |
888 |
i+4,SvPVbyte_nolen(var)); |
889 |
} |
890 |
} |
891 |
/* |
892 |
* XXX: What comes here is just a ridiculous use of the option parsing API |
893 |
* to hack on compatibility with other parts of the new API. First and |
894 |
* foremost, real C argc/argv would be good to get at... |
895 |
*/ |
896 |
if (mountopts && |
897 |
(fuse_opt_add_arg(&margs, "") == -1 || |
898 |
fuse_opt_add_arg(&margs, "-o") == -1 || |
899 |
fuse_opt_add_arg(&margs, mountopts) == -1)) { |
900 |
fuse_opt_free_args(&margs); |
901 |
croak("out of memory\n"); |
902 |
} |
903 |
fd = fuse_mount(mountpoint,&margs); |
904 |
fuse_opt_free_args(&margs); |
905 |
if(fd < 0) |
906 |
croak("could not mount fuse filesystem!\n"); |
907 |
if (debug) { |
908 |
if ( fuse_opt_add_arg(&fargs, "") == -1 || |
909 |
fuse_opt_add_arg(&fargs, "-d") == -1) { |
910 |
fuse_opt_free_args(&fargs); |
911 |
croak("out of memory\n"); |
912 |
} |
913 |
} else { |
914 |
if (fuse_opt_add_arg(&fargs, "") == -1) |
915 |
croak("out of memory\n"); |
916 |
} |
917 |
|
918 |
if(threaded) { |
919 |
fuse_loop_mt(fuse_new(fd,&fargs,&fops,sizeof(fops)/sizeof(void*))); |
920 |
} else |
921 |
fuse_loop(fuse_new(fd,&fargs,&fops,sizeof(fops)/sizeof(void*))); |
922 |
fuse_opt_free_args(&fargs); |