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/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, statcount; |
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 |
char *rvstr; |
89 |
I32 ax; |
90 |
FUSE_CONTEXT_PRE; |
91 |
dSP; |
92 |
if(buflen < 1) |
93 |
return EINVAL; |
94 |
DEBUGf("readlink begin\n"); |
95 |
ENTER; |
96 |
SAVETMPS; |
97 |
PUSHMARK(SP); |
98 |
XPUSHs(sv_2mortal(newSVpv(file,0))); |
99 |
PUTBACK; |
100 |
rv = call_sv(_PLfuse_callbacks[1],G_SCALAR); |
101 |
SPAGAIN; |
102 |
if(!rv) |
103 |
rv = -ENOENT; |
104 |
else { |
105 |
SV *mysv = POPs; |
106 |
if(SvTYPE(mysv) == SVt_IV || SvTYPE(mysv) == SVt_NV) |
107 |
rv = SvIV(mysv); |
108 |
else { |
109 |
strncpy(buf,SvPV_nolen(mysv),buflen); |
110 |
rv = 0; |
111 |
} |
112 |
} |
113 |
FREETMPS; |
114 |
LEAVE; |
115 |
buf[buflen-1] = 0; |
116 |
PUTBACK; |
117 |
DEBUGf("readlink end: %i\n",rv); |
118 |
FUSE_CONTEXT_POST; |
119 |
return rv; |
120 |
} |
121 |
|
122 |
int _PLfuse_getdir(const char *file, fuse_dirh_t dirh, fuse_dirfil_t dirfil) { |
123 |
int prv, rv; |
124 |
FUSE_CONTEXT_PRE; |
125 |
dSP; |
126 |
DEBUGf("getdir begin\n"); |
127 |
ENTER; |
128 |
SAVETMPS; |
129 |
PUSHMARK(SP); |
130 |
XPUSHs(sv_2mortal(newSVpv(file,0))); |
131 |
PUTBACK; |
132 |
prv = call_sv(_PLfuse_callbacks[2],G_ARRAY); |
133 |
SPAGAIN; |
134 |
if(prv) { |
135 |
rv = POPi; |
136 |
while(--prv) |
137 |
dirfil(dirh,POPp,0); |
138 |
} else { |
139 |
fprintf(stderr,"getdir() handler returned nothing!\n"); |
140 |
rv = -ENOSYS; |
141 |
} |
142 |
FREETMPS; |
143 |
LEAVE; |
144 |
PUTBACK; |
145 |
DEBUGf("getdir end: %i\n",rv); |
146 |
FUSE_CONTEXT_POST; |
147 |
return rv; |
148 |
} |
149 |
|
150 |
int _PLfuse_mknod (const char *file, mode_t mode, dev_t dev) { |
151 |
int rv; |
152 |
SV *rvsv; |
153 |
char *rvstr; |
154 |
FUSE_CONTEXT_PRE; |
155 |
dSP; |
156 |
DEBUGf("mknod begin\n"); |
157 |
ENTER; |
158 |
SAVETMPS; |
159 |
PUSHMARK(SP); |
160 |
XPUSHs(sv_2mortal(newSVpv(file,0))); |
161 |
XPUSHs(sv_2mortal(newSViv(mode))); |
162 |
XPUSHs(sv_2mortal(newSViv(dev))); |
163 |
PUTBACK; |
164 |
rv = call_sv(_PLfuse_callbacks[3],G_SCALAR); |
165 |
SPAGAIN; |
166 |
if(rv) |
167 |
rv = POPi; |
168 |
else |
169 |
rv = 0; |
170 |
FREETMPS; |
171 |
LEAVE; |
172 |
PUTBACK; |
173 |
DEBUGf("mknod end: %i\n",rv); |
174 |
FUSE_CONTEXT_POST; |
175 |
return rv; |
176 |
} |
177 |
|
178 |
int _PLfuse_mkdir (const char *file, mode_t mode) { |
179 |
int rv; |
180 |
SV *rvsv; |
181 |
char *rvstr; |
182 |
FUSE_CONTEXT_PRE; |
183 |
dSP; |
184 |
DEBUGf("mkdir begin\n"); |
185 |
ENTER; |
186 |
SAVETMPS; |
187 |
PUSHMARK(SP); |
188 |
XPUSHs(sv_2mortal(newSVpv(file,0))); |
189 |
XPUSHs(sv_2mortal(newSViv(mode))); |
190 |
PUTBACK; |
191 |
rv = call_sv(_PLfuse_callbacks[4],G_SCALAR); |
192 |
SPAGAIN; |
193 |
if(rv) |
194 |
rv = POPi; |
195 |
else |
196 |
rv = 0; |
197 |
FREETMPS; |
198 |
LEAVE; |
199 |
PUTBACK; |
200 |
DEBUGf("mkdir end: %i\n",rv); |
201 |
FUSE_CONTEXT_POST; |
202 |
return rv; |
203 |
} |
204 |
|
205 |
|
206 |
int _PLfuse_unlink (const char *file) { |
207 |
int rv; |
208 |
SV *rvsv; |
209 |
char *rvstr; |
210 |
FUSE_CONTEXT_PRE; |
211 |
dSP; |
212 |
DEBUGf("unlink begin\n"); |
213 |
ENTER; |
214 |
SAVETMPS; |
215 |
PUSHMARK(SP); |
216 |
XPUSHs(sv_2mortal(newSVpv(file,0))); |
217 |
PUTBACK; |
218 |
rv = call_sv(_PLfuse_callbacks[5],G_SCALAR); |
219 |
SPAGAIN; |
220 |
if(rv) |
221 |
rv = POPi; |
222 |
else |
223 |
rv = 0; |
224 |
FREETMPS; |
225 |
LEAVE; |
226 |
PUTBACK; |
227 |
DEBUGf("unlink end: %i\n",rv); |
228 |
FUSE_CONTEXT_POST; |
229 |
return rv; |
230 |
} |
231 |
|
232 |
int _PLfuse_rmdir (const char *file) { |
233 |
int rv; |
234 |
SV *rvsv; |
235 |
char *rvstr; |
236 |
FUSE_CONTEXT_PRE; |
237 |
dSP; |
238 |
DEBUGf("rmdir begin\n"); |
239 |
ENTER; |
240 |
SAVETMPS; |
241 |
PUSHMARK(SP); |
242 |
XPUSHs(sv_2mortal(newSVpv(file,0))); |
243 |
PUTBACK; |
244 |
rv = call_sv(_PLfuse_callbacks[6],G_SCALAR); |
245 |
SPAGAIN; |
246 |
if(rv) |
247 |
rv = POPi; |
248 |
else |
249 |
rv = 0; |
250 |
FREETMPS; |
251 |
LEAVE; |
252 |
PUTBACK; |
253 |
DEBUGf("rmdir end: %i\n",rv); |
254 |
FUSE_CONTEXT_POST; |
255 |
return rv; |
256 |
} |
257 |
|
258 |
int _PLfuse_symlink (const char *file, const char *new) { |
259 |
int rv; |
260 |
SV *rvsv; |
261 |
char *rvstr; |
262 |
FUSE_CONTEXT_PRE; |
263 |
dSP; |
264 |
DEBUGf("symlink begin\n"); |
265 |
ENTER; |
266 |
SAVETMPS; |
267 |
PUSHMARK(SP); |
268 |
XPUSHs(sv_2mortal(newSVpv(file,0))); |
269 |
XPUSHs(sv_2mortal(newSVpv(new,0))); |
270 |
PUTBACK; |
271 |
rv = call_sv(_PLfuse_callbacks[7],G_SCALAR); |
272 |
SPAGAIN; |
273 |
if(rv) |
274 |
rv = POPi; |
275 |
else |
276 |
rv = 0; |
277 |
FREETMPS; |
278 |
LEAVE; |
279 |
PUTBACK; |
280 |
DEBUGf("symlink end: %i\n",rv); |
281 |
FUSE_CONTEXT_POST; |
282 |
return rv; |
283 |
} |
284 |
|
285 |
int _PLfuse_rename (const char *file, const char *new) { |
286 |
int rv; |
287 |
SV *rvsv; |
288 |
char *rvstr; |
289 |
FUSE_CONTEXT_PRE; |
290 |
dSP; |
291 |
DEBUGf("rename begin\n"); |
292 |
ENTER; |
293 |
SAVETMPS; |
294 |
PUSHMARK(SP); |
295 |
XPUSHs(sv_2mortal(newSVpv(file,0))); |
296 |
XPUSHs(sv_2mortal(newSVpv(new,0))); |
297 |
PUTBACK; |
298 |
rv = call_sv(_PLfuse_callbacks[8],G_SCALAR); |
299 |
SPAGAIN; |
300 |
if(rv) |
301 |
rv = POPi; |
302 |
else |
303 |
rv = 0; |
304 |
FREETMPS; |
305 |
LEAVE; |
306 |
PUTBACK; |
307 |
DEBUGf("rename end: %i\n",rv); |
308 |
FUSE_CONTEXT_POST; |
309 |
return rv; |
310 |
} |
311 |
|
312 |
int _PLfuse_link (const char *file, const char *new) { |
313 |
int rv; |
314 |
SV *rvsv; |
315 |
char *rvstr; |
316 |
FUSE_CONTEXT_PRE; |
317 |
dSP; |
318 |
DEBUGf("link begin\n"); |
319 |
ENTER; |
320 |
SAVETMPS; |
321 |
PUSHMARK(SP); |
322 |
XPUSHs(sv_2mortal(newSVpv(file,0))); |
323 |
XPUSHs(sv_2mortal(newSVpv(new,0))); |
324 |
PUTBACK; |
325 |
rv = call_sv(_PLfuse_callbacks[9],G_SCALAR); |
326 |
SPAGAIN; |
327 |
if(rv) |
328 |
rv = POPi; |
329 |
else |
330 |
rv = 0; |
331 |
FREETMPS; |
332 |
LEAVE; |
333 |
PUTBACK; |
334 |
DEBUGf("link end: %i\n",rv); |
335 |
FUSE_CONTEXT_POST; |
336 |
return rv; |
337 |
} |
338 |
|
339 |
int _PLfuse_chmod (const char *file, mode_t mode) { |
340 |
int rv; |
341 |
SV *rvsv; |
342 |
char *rvstr; |
343 |
FUSE_CONTEXT_PRE; |
344 |
dSP; |
345 |
DEBUGf("chmod begin\n"); |
346 |
ENTER; |
347 |
SAVETMPS; |
348 |
PUSHMARK(SP); |
349 |
XPUSHs(sv_2mortal(newSVpv(file,0))); |
350 |
XPUSHs(sv_2mortal(newSViv(mode))); |
351 |
PUTBACK; |
352 |
rv = call_sv(_PLfuse_callbacks[10],G_SCALAR); |
353 |
SPAGAIN; |
354 |
if(rv) |
355 |
rv = POPi; |
356 |
else |
357 |
rv = 0; |
358 |
FREETMPS; |
359 |
LEAVE; |
360 |
PUTBACK; |
361 |
DEBUGf("chmod end: %i\n",rv); |
362 |
FUSE_CONTEXT_POST; |
363 |
return rv; |
364 |
} |
365 |
|
366 |
int _PLfuse_chown (const char *file, uid_t uid, gid_t gid) { |
367 |
int rv; |
368 |
SV *rvsv; |
369 |
char *rvstr; |
370 |
FUSE_CONTEXT_PRE; |
371 |
dSP; |
372 |
DEBUGf("chown begin\n"); |
373 |
ENTER; |
374 |
SAVETMPS; |
375 |
PUSHMARK(SP); |
376 |
XPUSHs(sv_2mortal(newSVpv(file,0))); |
377 |
XPUSHs(sv_2mortal(newSViv(uid))); |
378 |
XPUSHs(sv_2mortal(newSViv(gid))); |
379 |
PUTBACK; |
380 |
rv = call_sv(_PLfuse_callbacks[11],G_SCALAR); |
381 |
SPAGAIN; |
382 |
if(rv) |
383 |
rv = POPi; |
384 |
else |
385 |
rv = 0; |
386 |
FREETMPS; |
387 |
LEAVE; |
388 |
PUTBACK; |
389 |
DEBUGf("chown end: %i\n",rv); |
390 |
FUSE_CONTEXT_POST; |
391 |
return rv; |
392 |
} |
393 |
|
394 |
int _PLfuse_truncate (const char *file, off_t off) { |
395 |
int rv; |
396 |
SV *rvsv; |
397 |
char *rvstr; |
398 |
FUSE_CONTEXT_PRE; |
399 |
dSP; |
400 |
DEBUGf("truncate begin\n"); |
401 |
ENTER; |
402 |
SAVETMPS; |
403 |
PUSHMARK(SP); |
404 |
XPUSHs(sv_2mortal(newSVpv(file,0))); |
405 |
XPUSHs(sv_2mortal(newSViv(off))); |
406 |
PUTBACK; |
407 |
rv = call_sv(_PLfuse_callbacks[12],G_SCALAR); |
408 |
SPAGAIN; |
409 |
if(rv) |
410 |
rv = POPi; |
411 |
else |
412 |
rv = 0; |
413 |
FREETMPS; |
414 |
LEAVE; |
415 |
PUTBACK; |
416 |
DEBUGf("truncate end: %i\n",rv); |
417 |
FUSE_CONTEXT_POST; |
418 |
return rv; |
419 |
} |
420 |
|
421 |
int _PLfuse_utime (const char *file, struct utimbuf *uti) { |
422 |
int rv; |
423 |
SV *rvsv; |
424 |
char *rvstr; |
425 |
FUSE_CONTEXT_PRE; |
426 |
dSP; |
427 |
DEBUGf("utime begin\n"); |
428 |
ENTER; |
429 |
SAVETMPS; |
430 |
PUSHMARK(SP); |
431 |
XPUSHs(sv_2mortal(newSVpv(file,0))); |
432 |
XPUSHs(sv_2mortal(newSViv(uti->actime))); |
433 |
XPUSHs(sv_2mortal(newSViv(uti->modtime))); |
434 |
PUTBACK; |
435 |
rv = call_sv(_PLfuse_callbacks[13],G_SCALAR); |
436 |
SPAGAIN; |
437 |
if(rv) |
438 |
rv = POPi; |
439 |
else |
440 |
rv = 0; |
441 |
FREETMPS; |
442 |
LEAVE; |
443 |
PUTBACK; |
444 |
DEBUGf("utime end: %i\n",rv); |
445 |
FUSE_CONTEXT_POST; |
446 |
return rv; |
447 |
} |
448 |
|
449 |
int _PLfuse_open (const char *file, int flags) { |
450 |
int rv; |
451 |
SV *rvsv; |
452 |
char *rvstr; |
453 |
FUSE_CONTEXT_PRE; |
454 |
dSP; |
455 |
DEBUGf("open begin\n"); |
456 |
ENTER; |
457 |
SAVETMPS; |
458 |
PUSHMARK(SP); |
459 |
XPUSHs(sv_2mortal(newSVpv(file,0))); |
460 |
XPUSHs(sv_2mortal(newSViv(flags))); |
461 |
PUTBACK; |
462 |
rv = call_sv(_PLfuse_callbacks[14],G_SCALAR); |
463 |
SPAGAIN; |
464 |
if(rv) |
465 |
rv = POPi; |
466 |
else |
467 |
rv = 0; |
468 |
FREETMPS; |
469 |
LEAVE; |
470 |
PUTBACK; |
471 |
DEBUGf("open end: %i\n",rv); |
472 |
FUSE_CONTEXT_POST; |
473 |
return rv; |
474 |
} |
475 |
|
476 |
int _PLfuse_read (const char *file, char *buf, size_t buflen, off_t off) { |
477 |
int rv; |
478 |
char *rvstr; |
479 |
FUSE_CONTEXT_PRE; |
480 |
dSP; |
481 |
DEBUGf("read begin\n"); |
482 |
ENTER; |
483 |
SAVETMPS; |
484 |
PUSHMARK(SP); |
485 |
XPUSHs(sv_2mortal(newSVpv(file,0))); |
486 |
XPUSHs(sv_2mortal(newSViv(buflen))); |
487 |
XPUSHs(sv_2mortal(newSViv(off))); |
488 |
PUTBACK; |
489 |
rv = call_sv(_PLfuse_callbacks[15],G_SCALAR); |
490 |
SPAGAIN; |
491 |
if(!rv) |
492 |
rv = -ENOENT; |
493 |
else { |
494 |
SV *mysv = POPs; |
495 |
if(SvTYPE(mysv) == SVt_NV || SvTYPE(mysv) == SVt_IV) |
496 |
rv = SvIV(mysv); |
497 |
else { |
498 |
if(SvPOK(mysv)) { |
499 |
rv = SvCUR(mysv); |
500 |
} else { |
501 |
rv = 0; |
502 |
} |
503 |
if(rv > buflen) |
504 |
croak("read() handler returned more than buflen! (%i > %i)",rv,buflen); |
505 |
if(rv) |
506 |
memcpy(buf,SvPV_nolen(mysv),rv); |
507 |
} |
508 |
} |
509 |
FREETMPS; |
510 |
LEAVE; |
511 |
PUTBACK; |
512 |
DEBUGf("read end: %i\n",rv); |
513 |
FUSE_CONTEXT_POST; |
514 |
return rv; |
515 |
} |
516 |
|
517 |
int _PLfuse_write (const char *file, const char *buf, size_t buflen, off_t off) { |
518 |
int rv; |
519 |
char *rvstr; |
520 |
FUSE_CONTEXT_PRE; |
521 |
dSP; |
522 |
DEBUGf("write begin\n"); |
523 |
ENTER; |
524 |
SAVETMPS; |
525 |
PUSHMARK(SP); |
526 |
XPUSHs(sv_2mortal(newSVpv(file,0))); |
527 |
XPUSHs(sv_2mortal(newSVpvn(buf,buflen))); |
528 |
XPUSHs(sv_2mortal(newSViv(off))); |
529 |
PUTBACK; |
530 |
rv = call_sv(_PLfuse_callbacks[16],G_SCALAR); |
531 |
SPAGAIN; |
532 |
if(rv) |
533 |
rv = POPi; |
534 |
else |
535 |
rv = 0; |
536 |
FREETMPS; |
537 |
LEAVE; |
538 |
PUTBACK; |
539 |
DEBUGf("write end: %i\n",rv); |
540 |
FUSE_CONTEXT_POST; |
541 |
return rv; |
542 |
} |
543 |
|
544 |
int _PLfuse_statfs (const char *file, struct statfs *st) { |
545 |
int rv; |
546 |
char *rvstr; |
547 |
FUSE_CONTEXT_PRE; |
548 |
dSP; |
549 |
DEBUGf("statfs begin\n"); |
550 |
ENTER; |
551 |
SAVETMPS; |
552 |
PUSHMARK(SP); |
553 |
PUTBACK; |
554 |
rv = call_sv(_PLfuse_callbacks[17],G_ARRAY); |
555 |
SPAGAIN; |
556 |
if(rv > 5) { |
557 |
st->f_bsize = POPi; |
558 |
st->f_bfree = POPi; |
559 |
st->f_blocks = POPi; |
560 |
st->f_ffree = POPi; |
561 |
st->f_files = POPi; |
562 |
st->f_namelen = POPi; |
563 |
if(rv > 6) |
564 |
rv = POPi; |
565 |
else |
566 |
rv = 0; |
567 |
} else |
568 |
if(rv > 1) |
569 |
croak("inappropriate number of returned values from statfs"); |
570 |
else |
571 |
if(rv) |
572 |
rv = POPi; |
573 |
else |
574 |
rv = -ENOSYS; |
575 |
FREETMPS; |
576 |
LEAVE; |
577 |
PUTBACK; |
578 |
DEBUGf("statfs end: %i\n",rv); |
579 |
FUSE_CONTEXT_POST; |
580 |
return rv; |
581 |
} |
582 |
|
583 |
int _PLfuse_flush (const char *file) { |
584 |
int rv; |
585 |
char *rvstr; |
586 |
FUSE_CONTEXT_PRE; |
587 |
dSP; |
588 |
DEBUGf("flush begin\n"); |
589 |
ENTER; |
590 |
SAVETMPS; |
591 |
PUSHMARK(SP); |
592 |
XPUSHs(sv_2mortal(newSVpv(file,0))); |
593 |
PUTBACK; |
594 |
rv = call_sv(_PLfuse_callbacks[18],G_SCALAR); |
595 |
SPAGAIN; |
596 |
if(rv) |
597 |
rv = POPi; |
598 |
else |
599 |
rv = 0; |
600 |
FREETMPS; |
601 |
LEAVE; |
602 |
PUTBACK; |
603 |
DEBUGf("flush end: %i\n",rv); |
604 |
FUSE_CONTEXT_POST; |
605 |
return rv; |
606 |
} |
607 |
|
608 |
int _PLfuse_release (const char *file, int flags) { |
609 |
int rv; |
610 |
char *rvstr; |
611 |
FUSE_CONTEXT_PRE; |
612 |
dSP; |
613 |
DEBUGf("release begin\n"); |
614 |
ENTER; |
615 |
SAVETMPS; |
616 |
PUSHMARK(SP); |
617 |
XPUSHs(sv_2mortal(newSVpv(file,0))); |
618 |
XPUSHs(sv_2mortal(newSViv(flags))); |
619 |
PUTBACK; |
620 |
rv = call_sv(_PLfuse_callbacks[19],G_SCALAR); |
621 |
SPAGAIN; |
622 |
if(rv) |
623 |
rv = POPi; |
624 |
else |
625 |
rv = 0; |
626 |
FREETMPS; |
627 |
LEAVE; |
628 |
PUTBACK; |
629 |
DEBUGf("release end: %i\n",rv); |
630 |
FUSE_CONTEXT_POST; |
631 |
return rv; |
632 |
} |
633 |
|
634 |
int _PLfuse_fsync (const char *file, int flags) { |
635 |
int rv; |
636 |
char *rvstr; |
637 |
FUSE_CONTEXT_PRE; |
638 |
dSP; |
639 |
DEBUGf("fsync begin\n"); |
640 |
ENTER; |
641 |
SAVETMPS; |
642 |
PUSHMARK(SP); |
643 |
XPUSHs(sv_2mortal(newSVpv(file,0))); |
644 |
XPUSHs(sv_2mortal(newSViv(flags))); |
645 |
PUTBACK; |
646 |
rv = call_sv(_PLfuse_callbacks[20],G_SCALAR); |
647 |
SPAGAIN; |
648 |
if(rv) |
649 |
rv = POPi; |
650 |
else |
651 |
rv = 0; |
652 |
FREETMPS; |
653 |
LEAVE; |
654 |
PUTBACK; |
655 |
DEBUGf("fsync end: %i\n",rv); |
656 |
FUSE_CONTEXT_POST; |
657 |
return rv; |
658 |
} |
659 |
|
660 |
int _PLfuse_setxattr (const char *file, const char *name, const char *buf, size_t buflen, int flags) { |
661 |
int rv; |
662 |
char *rvstr; |
663 |
FUSE_CONTEXT_PRE; |
664 |
dSP; |
665 |
DEBUGf("setxattr begin\n"); |
666 |
ENTER; |
667 |
SAVETMPS; |
668 |
PUSHMARK(SP); |
669 |
XPUSHs(sv_2mortal(newSVpv(file,0))); |
670 |
XPUSHs(sv_2mortal(newSVpv(name,0))); |
671 |
XPUSHs(sv_2mortal(newSVpvn(buf,buflen))); |
672 |
XPUSHs(sv_2mortal(newSViv(flags))); |
673 |
PUTBACK; |
674 |
rv = call_sv(_PLfuse_callbacks[21],G_SCALAR); |
675 |
SPAGAIN; |
676 |
if(rv) |
677 |
rv = POPi; |
678 |
else |
679 |
rv = 0; |
680 |
FREETMPS; |
681 |
LEAVE; |
682 |
PUTBACK; |
683 |
DEBUGf("setxattr end: %i\n",rv); |
684 |
FUSE_CONTEXT_POST; |
685 |
return rv; |
686 |
} |
687 |
|
688 |
int _PLfuse_getxattr (const char *file, const char *name, char *buf, size_t buflen) { |
689 |
int rv; |
690 |
char *rvstr; |
691 |
FUSE_CONTEXT_PRE; |
692 |
dSP; |
693 |
DEBUGf("getxattr begin\n"); |
694 |
ENTER; |
695 |
SAVETMPS; |
696 |
PUSHMARK(SP); |
697 |
XPUSHs(sv_2mortal(newSVpv(file,0))); |
698 |
XPUSHs(sv_2mortal(newSVpv(name,0))); |
699 |
PUTBACK; |
700 |
rv = call_sv(_PLfuse_callbacks[22],G_SCALAR); |
701 |
SPAGAIN; |
702 |
if(!rv) |
703 |
rv = -ENOENT; |
704 |
else { |
705 |
SV *mysv = POPs; |
706 |
|
707 |
rv = 0; |
708 |
if(SvTYPE(mysv) == SVt_NV || SvTYPE(mysv) == SVt_IV) |
709 |
rv = SvIV(mysv); |
710 |
else { |
711 |
if(SvPOK(mysv)) { |
712 |
rv = SvCUR(mysv); |
713 |
} else { |
714 |
rv = 0; |
715 |
} |
716 |
if ((rv > 0) && (buflen > 0)) |
717 |
{ |
718 |
if(rv > buflen) |
719 |
rv = -ERANGE; |
720 |
else |
721 |
memcpy(buf,SvPV_nolen(mysv),rv); |
722 |
} |
723 |
} |
724 |
} |
725 |
FREETMPS; |
726 |
LEAVE; |
727 |
PUTBACK; |
728 |
DEBUGf("getxattr end: %i\n",rv); |
729 |
FUSE_CONTEXT_POST; |
730 |
return rv; |
731 |
} |
732 |
|
733 |
int _PLfuse_listxattr (const char *file, char *list, size_t size) { |
734 |
int prv, rv; |
735 |
char *rvstr; |
736 |
FUSE_CONTEXT_PRE; |
737 |
dSP; |
738 |
DEBUGf("listxattr begin\n"); |
739 |
ENTER; |
740 |
SAVETMPS; |
741 |
PUSHMARK(SP); |
742 |
XPUSHs(sv_2mortal(newSVpv(file,0))); |
743 |
PUTBACK; |
744 |
prv = call_sv(_PLfuse_callbacks[23],G_ARRAY); |
745 |
SPAGAIN; |
746 |
if(!prv) |
747 |
rv = -ENOENT; |
748 |
else { |
749 |
|
750 |
char *p = list; |
751 |
int spc = size; |
752 |
int total_len = 0; |
753 |
int i; |
754 |
|
755 |
rv = POPi; |
756 |
prv--; |
757 |
|
758 |
/* Always nul terminate */ |
759 |
if (list && (size > 0)) |
760 |
list[0] = '\0'; |
761 |
|
762 |
while (prv > 0) |
763 |
{ |
764 |
SV *mysv = POPs; |
765 |
prv--; |
766 |
|
767 |
if (SvPOK(mysv)) { |
768 |
/* Copy nul too */ |
769 |
int s = SvCUR(mysv) + 1; |
770 |
total_len += s; |
771 |
|
772 |
if (p && (size > 0) && (spc >= s)) |
773 |
{ |
774 |
memcpy(p,SvPV_nolen(mysv),s); |
775 |
p += s; |
776 |
spc -= s; |
777 |
} |
778 |
} |
779 |
} |
780 |
|
781 |
/* |
782 |
* If the Perl returned an error, return that. |
783 |
* Otherwise check that the buffer was big enough. |
784 |
*/ |
785 |
if (rv == 0) |
786 |
{ |
787 |
rv = total_len; |
788 |
if ((size > 0) && (size < total_len)) |
789 |
rv = -ERANGE; |
790 |
} |
791 |
} |
792 |
FREETMPS; |
793 |
LEAVE; |
794 |
PUTBACK; |
795 |
DEBUGf("listxattr end: %i\n",rv); |
796 |
FUSE_CONTEXT_POST; |
797 |
return rv; |
798 |
} |
799 |
|
800 |
int _PLfuse_removexattr (const char *file, const char *name) { |
801 |
int rv; |
802 |
char *rvstr; |
803 |
FUSE_CONTEXT_PRE; |
804 |
dSP; |
805 |
DEBUGf("removexattr begin\n"); |
806 |
ENTER; |
807 |
SAVETMPS; |
808 |
PUSHMARK(SP); |
809 |
XPUSHs(sv_2mortal(newSVpv(file,0))); |
810 |
XPUSHs(sv_2mortal(newSVpv(name,0))); |
811 |
PUTBACK; |
812 |
rv = call_sv(_PLfuse_callbacks[24],G_SCALAR); |
813 |
SPAGAIN; |
814 |
if(rv) |
815 |
rv = POPi; |
816 |
else |
817 |
rv = 0; |
818 |
FREETMPS; |
819 |
LEAVE; |
820 |
PUTBACK; |
821 |
DEBUGf("removexattr end: %i\n",rv); |
822 |
FUSE_CONTEXT_POST; |
823 |
return rv; |
824 |
} |
825 |
|
826 |
struct fuse_operations _available_ops = { |
827 |
getattr: _PLfuse_getattr, |
828 |
readlink: _PLfuse_readlink, |
829 |
getdir: _PLfuse_getdir, |
830 |
mknod: _PLfuse_mknod, |
831 |
mkdir: _PLfuse_mkdir, |
832 |
unlink: _PLfuse_unlink, |
833 |
rmdir: _PLfuse_rmdir, |
834 |
symlink: _PLfuse_symlink, |
835 |
rename: _PLfuse_rename, |
836 |
link: _PLfuse_link, |
837 |
chmod: _PLfuse_chmod, |
838 |
chown: _PLfuse_chown, |
839 |
truncate: _PLfuse_truncate, |
840 |
utime: _PLfuse_utime, |
841 |
open: _PLfuse_open, |
842 |
read: _PLfuse_read, |
843 |
write: _PLfuse_write, |
844 |
statfs: _PLfuse_statfs, |
845 |
flush: _PLfuse_flush, |
846 |
release: _PLfuse_release, |
847 |
fsync: _PLfuse_fsync, |
848 |
setxattr: _PLfuse_setxattr, |
849 |
getxattr: _PLfuse_getxattr, |
850 |
listxattr: _PLfuse_listxattr, |
851 |
removexattr: _PLfuse_removexattr, |
852 |
}; |
853 |
|
854 |
MODULE = Fuse PACKAGE = Fuse |
855 |
PROTOTYPES: DISABLE |
856 |
|
857 |
void |
858 |
perl_fuse_main(...) |
859 |
PREINIT: |
860 |
struct fuse_operations fops = |
861 |
{NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL, |
862 |
NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL}; |
863 |
int i, fd, varnum = 0, debug, threaded, have_mnt; |
864 |
char *mountpoint; |
865 |
char *mountopts; |
866 |
STRLEN n_a; |
867 |
STRLEN l; |
868 |
INIT: |
869 |
if(items != 29) { |
870 |
fprintf(stderr,"Perl<->C inconsistency or internal error\n"); |
871 |
XSRETURN_UNDEF; |
872 |
} |
873 |
CODE: |
874 |
debug = SvIV(ST(0)); |
875 |
threaded = SvIV(ST(1)); |
876 |
if(threaded) { |
877 |
#ifdef FUSE_USE_ITHREADS |
878 |
master_interp = PERL_GET_INTERP; |
879 |
#else |
880 |
fprintf(stderr,"FUSE warning: Your script has requested multithreaded " |
881 |
"mode, but your perl was not built with -Dusethreads. " |
882 |
"Threads are disabled.\n"); |
883 |
threaded = 0; |
884 |
#endif |
885 |
} |
886 |
mountpoint = SvPV_nolen(ST(2)); |
887 |
mountopts = SvPV_nolen(ST(3)); |
888 |
for(i=0;i<N_CALLBACKS;i++) { |
889 |
SV *var = ST(i+4); |
890 |
/* allow symbolic references, or real code references. */ |
891 |
if(SvOK(var) && (SvPOK(var) || (SvROK(var) && SvTYPE(SvRV(var)) == SVt_PVCV))) { |
892 |
void **tmp1 = (void**)&_available_ops, **tmp2 = (void**)&fops; |
893 |
tmp2[i] = tmp1[i]; |
894 |
#ifdef FUSE_USE_ITHREADS |
895 |
if(threaded) |
896 |
/* note: under 5.8.7, this croaks for code references. */ |
897 |
SvSHARE(var); |
898 |
#endif |
899 |
_PLfuse_callbacks[i] = var; |
900 |
} else |
901 |
if(SvOK(var)) { |
902 |
croak("invalid callback passed to perl_fuse_main " |
903 |
"(%s is not a string, code ref, or undef).\n", |
904 |
i+4,SvPVbyte_nolen(var)); |
905 |
} |
906 |
} |
907 |
/* FIXME: need to pass fusermount arguments */ |
908 |
fd = fuse_mount(mountpoint,mountopts); |
909 |
if(fd < 0) |
910 |
croak("could not mount fuse filesystem!"); |
911 |
if(threaded) { |
912 |
fuse_loop_mt(fuse_new(fd,debug ? "debug" : NULL,&fops)); |
913 |
} else |
914 |
fuse_loop(fuse_new(fd,debug ? "debug" : NULL,&fops)); |