7 /* perl implements threads with pthread. So, we use the pthread API for
8 * handling thread-local storage. */
10 PerlInterpreter *master_interp = NULL;
11 static inline void create_perl_context() {
13 PerlInterpreter *me = PERL_GET_CONTEXT;
15 PERL_SET_CONTEXT(master_interp);
16 me = perl_clone(master_interp, CLONEf_CLONE_HOST);
20 # define FUSE_CONTEXT_PRE create_perl_context(); {
21 # define FUSE_CONTEXT_POST }
22 # define FUSE_USE_ITHREADS
24 # error "Sorry, I don't know how to handle ithreads on this architecture."
27 # define FUSE_CONTEXT_PRE
28 # define FUSE_CONTEXT_POST
34 #define DEBUGf(f, a...) fprintf(stderr, "%s:%d (%i): " f,__BASE_FILE__,__LINE__,sp-PL_stack_base ,##a )
39 #define N_CALLBACKS 25
40 SV *_PLfuse_callbacks[N_CALLBACKS];
42 int _PLfuse_getattr(const char *file, struct stat *result) {
46 DEBUGf("getattr begin: %s\n",file);
50 XPUSHs(sv_2mortal(newSVpv(file,strlen(file))));
52 rv = call_sv(_PLfuse_callbacks[0],G_ARRAY);
56 fprintf(stderr,"inappropriate number of returned values from getattr\n");
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;
81 DEBUGf("getattr end: %i\n",rv);
86 int _PLfuse_readlink(const char *file,char *buf,size_t buflen) {
92 DEBUGf("readlink begin\n");
96 XPUSHs(sv_2mortal(newSVpv(file,0)));
98 rv = call_sv(_PLfuse_callbacks[1],G_SCALAR);
104 if(SvTYPE(mysv) == SVt_IV || SvTYPE(mysv) == SVt_NV)
107 strncpy(buf,SvPV_nolen(mysv),buflen);
115 DEBUGf("readlink end: %i\n",rv);
122 * This doesn't yet work... we alwas get ENOSYS when trying to use readdir().
123 * Well, of course, getdir() is fine as well.
125 int _PLfuse_readdir(const char *file, void *dirh, fuse_fill_dir_t dirfil, off_t off, struct fuse_file_info *fi) {
127 int _PLfuse_getdir(const char *file, fuse_dirh_t dirh, fuse_dirfil_t dirfil) {
131 DEBUGf("getdir begin\n");
135 XPUSHs(sv_2mortal(newSVpv(file,0)));
137 prv = call_sv(_PLfuse_callbacks[2],G_ARRAY);
142 dirfil(dirh,POPp,0,0);
144 fprintf(stderr,"getdir() handler returned nothing!\n");
150 DEBUGf("getdir end: %i\n",rv);
155 int _PLfuse_mknod (const char *file, mode_t mode, dev_t dev) {
159 DEBUGf("mknod begin\n");
163 XPUSHs(sv_2mortal(newSVpv(file,0)));
164 XPUSHs(sv_2mortal(newSViv(mode)));
165 XPUSHs(sv_2mortal(newSViv(dev)));
167 rv = call_sv(_PLfuse_callbacks[3],G_SCALAR);
176 DEBUGf("mknod end: %i\n",rv);
181 int _PLfuse_mkdir (const char *file, mode_t mode) {
185 DEBUGf("mkdir begin\n");
189 XPUSHs(sv_2mortal(newSVpv(file,0)));
190 XPUSHs(sv_2mortal(newSViv(mode)));
192 rv = call_sv(_PLfuse_callbacks[4],G_SCALAR);
201 DEBUGf("mkdir end: %i\n",rv);
207 int _PLfuse_unlink (const char *file) {
211 DEBUGf("unlink begin\n");
215 XPUSHs(sv_2mortal(newSVpv(file,0)));
217 rv = call_sv(_PLfuse_callbacks[5],G_SCALAR);
226 DEBUGf("unlink end: %i\n",rv);
231 int _PLfuse_rmdir (const char *file) {
235 DEBUGf("rmdir begin\n");
239 XPUSHs(sv_2mortal(newSVpv(file,0)));
241 rv = call_sv(_PLfuse_callbacks[6],G_SCALAR);
250 DEBUGf("rmdir end: %i\n",rv);
255 int _PLfuse_symlink (const char *file, const char *new) {
259 DEBUGf("symlink begin\n");
263 XPUSHs(sv_2mortal(newSVpv(file,0)));
264 XPUSHs(sv_2mortal(newSVpv(new,0)));
266 rv = call_sv(_PLfuse_callbacks[7],G_SCALAR);
275 DEBUGf("symlink end: %i\n",rv);
280 int _PLfuse_rename (const char *file, const char *new) {
284 DEBUGf("rename begin\n");
288 XPUSHs(sv_2mortal(newSVpv(file,0)));
289 XPUSHs(sv_2mortal(newSVpv(new,0)));
291 rv = call_sv(_PLfuse_callbacks[8],G_SCALAR);
300 DEBUGf("rename end: %i\n",rv);
305 int _PLfuse_link (const char *file, const char *new) {
309 DEBUGf("link begin\n");
313 XPUSHs(sv_2mortal(newSVpv(file,0)));
314 XPUSHs(sv_2mortal(newSVpv(new,0)));
316 rv = call_sv(_PLfuse_callbacks[9],G_SCALAR);
325 DEBUGf("link end: %i\n",rv);
330 int _PLfuse_chmod (const char *file, mode_t mode) {
334 DEBUGf("chmod begin\n");
338 XPUSHs(sv_2mortal(newSVpv(file,0)));
339 XPUSHs(sv_2mortal(newSViv(mode)));
341 rv = call_sv(_PLfuse_callbacks[10],G_SCALAR);
350 DEBUGf("chmod end: %i\n",rv);
355 int _PLfuse_chown (const char *file, uid_t uid, gid_t gid) {
359 DEBUGf("chown begin\n");
363 XPUSHs(sv_2mortal(newSVpv(file,0)));
364 XPUSHs(sv_2mortal(newSViv(uid)));
365 XPUSHs(sv_2mortal(newSViv(gid)));
367 rv = call_sv(_PLfuse_callbacks[11],G_SCALAR);
376 DEBUGf("chown end: %i\n",rv);
381 int _PLfuse_truncate (const char *file, off_t off) {
385 DEBUGf("truncate begin\n");
389 XPUSHs(sv_2mortal(newSVpv(file,0)));
390 XPUSHs(sv_2mortal(newSViv(off)));
392 rv = call_sv(_PLfuse_callbacks[12],G_SCALAR);
401 DEBUGf("truncate end: %i\n",rv);
406 int _PLfuse_utime (const char *file, struct utimbuf *uti) {
410 DEBUGf("utime begin\n");
414 XPUSHs(sv_2mortal(newSVpv(file,0)));
415 XPUSHs(sv_2mortal(newSViv(uti->actime)));
416 XPUSHs(sv_2mortal(newSViv(uti->modtime)));
418 rv = call_sv(_PLfuse_callbacks[13],G_SCALAR);
427 DEBUGf("utime end: %i\n",rv);
432 int _PLfuse_open (const char *file, struct fuse_file_info *fi) {
434 int flags = fi->flags;
437 DEBUGf("open begin\n");
441 XPUSHs(sv_2mortal(newSVpv(file,0)));
442 XPUSHs(sv_2mortal(newSViv(flags)));
444 rv = call_sv(_PLfuse_callbacks[14],G_SCALAR);
453 DEBUGf("open end: %i\n",rv);
458 int _PLfuse_read (const char *file, char *buf, size_t buflen, off_t off, struct fuse_file_info *fi) {
462 DEBUGf("read begin\n");
466 XPUSHs(sv_2mortal(newSVpv(file,0)));
467 XPUSHs(sv_2mortal(newSViv(buflen)));
468 XPUSHs(sv_2mortal(newSViv(off)));
470 rv = call_sv(_PLfuse_callbacks[15],G_SCALAR);
476 if(SvTYPE(mysv) == SVt_NV || SvTYPE(mysv) == SVt_IV)
485 croak("read() handler returned more than buflen! (%i > %i)",rv,buflen);
487 memcpy(buf,SvPV_nolen(mysv),rv);
493 DEBUGf("read end: %i\n",rv);
498 int _PLfuse_write (const char *file, const char *buf, size_t buflen, off_t off, struct fuse_file_info *fi) {
502 DEBUGf("write begin\n");
506 XPUSHs(sv_2mortal(newSVpv(file,0)));
507 XPUSHs(sv_2mortal(newSVpvn(buf,buflen)));
508 XPUSHs(sv_2mortal(newSViv(off)));
510 rv = call_sv(_PLfuse_callbacks[16],G_SCALAR);
519 DEBUGf("write end: %i\n",rv);
524 int _PLfuse_statfs (const char *file, struct statvfs *st) {
528 DEBUGf("statfs begin\n");
533 rv = call_sv(_PLfuse_callbacks[17],G_ARRAY);
535 DEBUGf("statfs got %i params\n",rv);
536 if(rv == 6 || rv == 7) {
542 st->f_namemax = POPi;
543 /* zero and fill-in other */
547 st->f_bavail = st->f_bfree;
548 st->f_favail = st->f_ffree;
556 croak("inappropriate number of returned values from statfs");
565 DEBUGf("statfs end: %i\n",rv);
570 int _PLfuse_flush (const char *file, struct fuse_file_info *fi) {
574 DEBUGf("flush begin\n");
578 XPUSHs(sv_2mortal(newSVpv(file,0)));
580 rv = call_sv(_PLfuse_callbacks[18],G_SCALAR);
589 DEBUGf("flush end: %i\n",rv);
594 int _PLfuse_release (const char *file, struct fuse_file_info *fi) {
596 int flags = fi->flags;
599 DEBUGf("release begin\n");
603 XPUSHs(sv_2mortal(newSVpv(file,0)));
604 XPUSHs(sv_2mortal(newSViv(flags)));
606 rv = call_sv(_PLfuse_callbacks[19],G_SCALAR);
615 DEBUGf("release end: %i\n",rv);
620 int _PLfuse_fsync (const char *file, int datasync, struct fuse_file_info *fi) {
622 int flags = fi->flags;
625 DEBUGf("fsync begin\n");
629 XPUSHs(sv_2mortal(newSVpv(file,0)));
630 XPUSHs(sv_2mortal(newSViv(flags)));
632 rv = call_sv(_PLfuse_callbacks[20],G_SCALAR);
641 DEBUGf("fsync end: %i\n",rv);
646 int _PLfuse_setxattr (const char *file, const char *name, const char *buf, size_t buflen, int flags) {
650 DEBUGf("setxattr begin\n");
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)));
659 rv = call_sv(_PLfuse_callbacks[21],G_SCALAR);
668 DEBUGf("setxattr end: %i\n",rv);
673 int _PLfuse_getxattr (const char *file, const char *name, char *buf, size_t buflen) {
677 DEBUGf("getxattr begin\n");
681 XPUSHs(sv_2mortal(newSVpv(file,0)));
682 XPUSHs(sv_2mortal(newSVpv(name,0)));
684 rv = call_sv(_PLfuse_callbacks[22],G_SCALAR);
692 if(SvTYPE(mysv) == SVt_NV || SvTYPE(mysv) == SVt_IV)
700 if ((rv > 0) && (buflen > 0))
705 memcpy(buf,SvPV_nolen(mysv),rv);
712 DEBUGf("getxattr end: %i\n",rv);
717 int _PLfuse_listxattr (const char *file, char *list, size_t size) {
721 DEBUGf("listxattr begin\n");
725 XPUSHs(sv_2mortal(newSVpv(file,0)));
727 prv = call_sv(_PLfuse_callbacks[23],G_ARRAY);
740 /* Always nul terminate */
741 if (list && (size > 0))
751 int s = SvCUR(mysv) + 1;
754 if (p && (size > 0) && (spc >= s))
756 memcpy(p,SvPV_nolen(mysv),s);
764 * If the Perl returned an error, return that.
765 * Otherwise check that the buffer was big enough.
770 if ((size > 0) && (size < total_len))
777 DEBUGf("listxattr end: %i\n",rv);
782 int _PLfuse_removexattr (const char *file, const char *name) {
786 DEBUGf("removexattr begin\n");
790 XPUSHs(sv_2mortal(newSVpv(file,0)));
791 XPUSHs(sv_2mortal(newSVpv(name,0)));
793 rv = call_sv(_PLfuse_callbacks[24],G_SCALAR);
802 DEBUGf("removexattr end: %i\n",rv);
807 struct fuse_operations _available_ops = {
808 getattr: _PLfuse_getattr,
809 readlink: _PLfuse_readlink,
810 getdir: _PLfuse_getdir,
812 readdir: _PLfuse_readdir,
814 mknod: _PLfuse_mknod,
815 mkdir: _PLfuse_mkdir,
816 unlink: _PLfuse_unlink,
817 rmdir: _PLfuse_rmdir,
818 symlink: _PLfuse_symlink,
819 rename: _PLfuse_rename,
821 chmod: _PLfuse_chmod,
822 chown: _PLfuse_chown,
823 truncate: _PLfuse_truncate,
824 utime: _PLfuse_utime,
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,
838 MODULE = Fuse PACKAGE = Fuse
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;
850 struct fuse_args margs = FUSE_ARGS_INIT(0, NULL);
851 struct fuse_args fargs = FUSE_ARGS_INIT(0, NULL);
854 fprintf(stderr,"Perl<->C inconsistency or internal error\n");
859 threaded = SvIV(ST(1));
861 #ifdef FUSE_USE_ITHREADS
862 master_interp = PERL_GET_INTERP;
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");
870 mountpoint = SvPV_nolen(ST(2));
871 mountopts = SvPV_nolen(ST(3));
872 for(i=0;i<N_CALLBACKS;i++) {
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;
878 #ifdef FUSE_USE_ITHREADS
880 /* note: under 5.8.7, this croaks for code references. */
883 _PLfuse_callbacks[i] = 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));
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...
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");
903 fd = fuse_mount(mountpoint,&margs);
904 fuse_opt_free_args(&margs);
906 croak("could not mount fuse filesystem!\n");
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");
914 if (fuse_opt_add_arg(&fargs, "") == -1)
915 croak("out of memory\n");
919 fuse_loop_mt(fuse_new(fd,&fargs,&fops,sizeof(fops)));
921 fuse_loop(fuse_new(fd,&fargs,&fops,sizeof(fops)));
922 fuse_opt_free_args(&fargs);