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) {
94 DEBUGf("readlink begin\n");
98 XPUSHs(sv_2mortal(newSVpv(file,0)));
100 rv = call_sv(_PLfuse_callbacks[1],G_SCALAR);
106 if(SvTYPE(mysv) == SVt_IV || SvTYPE(mysv) == SVt_NV)
109 strncpy(buf,SvPV_nolen(mysv),buflen);
117 DEBUGf("readlink end: %i\n",rv);
124 * This doesn't yet work... we alwas get ENOSYS when trying to use readdir().
125 * Well, of course, getdir() is fine as well.
127 int _PLfuse_readdir(const char *file, void *dirh, fuse_fill_dir_t dirfil, off_t off, struct fuse_file_info *fi) {
129 int _PLfuse_getdir(const char *file, fuse_dirh_t dirh, fuse_dirfil_t dirfil) {
133 DEBUGf("getdir begin\n");
137 XPUSHs(sv_2mortal(newSVpv(file,0)));
139 prv = call_sv(_PLfuse_callbacks[2],G_ARRAY);
144 dirfil(dirh,POPp,0,0);
146 fprintf(stderr,"getdir() handler returned nothing!\n");
152 DEBUGf("getdir end: %i\n",rv);
157 int _PLfuse_mknod (const char *file, mode_t mode, dev_t dev) {
163 DEBUGf("mknod begin\n");
167 XPUSHs(sv_2mortal(newSVpv(file,0)));
168 XPUSHs(sv_2mortal(newSViv(mode)));
169 XPUSHs(sv_2mortal(newSViv(dev)));
171 rv = call_sv(_PLfuse_callbacks[3],G_SCALAR);
180 DEBUGf("mknod end: %i\n",rv);
185 int _PLfuse_mkdir (const char *file, mode_t mode) {
191 DEBUGf("mkdir begin\n");
195 XPUSHs(sv_2mortal(newSVpv(file,0)));
196 XPUSHs(sv_2mortal(newSViv(mode)));
198 rv = call_sv(_PLfuse_callbacks[4],G_SCALAR);
207 DEBUGf("mkdir end: %i\n",rv);
213 int _PLfuse_unlink (const char *file) {
219 DEBUGf("unlink begin\n");
223 XPUSHs(sv_2mortal(newSVpv(file,0)));
225 rv = call_sv(_PLfuse_callbacks[5],G_SCALAR);
234 DEBUGf("unlink end: %i\n",rv);
239 int _PLfuse_rmdir (const char *file) {
245 DEBUGf("rmdir begin\n");
249 XPUSHs(sv_2mortal(newSVpv(file,0)));
251 rv = call_sv(_PLfuse_callbacks[6],G_SCALAR);
260 DEBUGf("rmdir end: %i\n",rv);
265 int _PLfuse_symlink (const char *file, const char *new) {
271 DEBUGf("symlink begin\n");
275 XPUSHs(sv_2mortal(newSVpv(file,0)));
276 XPUSHs(sv_2mortal(newSVpv(new,0)));
278 rv = call_sv(_PLfuse_callbacks[7],G_SCALAR);
287 DEBUGf("symlink end: %i\n",rv);
292 int _PLfuse_rename (const char *file, const char *new) {
298 DEBUGf("rename begin\n");
302 XPUSHs(sv_2mortal(newSVpv(file,0)));
303 XPUSHs(sv_2mortal(newSVpv(new,0)));
305 rv = call_sv(_PLfuse_callbacks[8],G_SCALAR);
314 DEBUGf("rename end: %i\n",rv);
319 int _PLfuse_link (const char *file, const char *new) {
325 DEBUGf("link begin\n");
329 XPUSHs(sv_2mortal(newSVpv(file,0)));
330 XPUSHs(sv_2mortal(newSVpv(new,0)));
332 rv = call_sv(_PLfuse_callbacks[9],G_SCALAR);
341 DEBUGf("link end: %i\n",rv);
346 int _PLfuse_chmod (const char *file, mode_t mode) {
352 DEBUGf("chmod begin\n");
356 XPUSHs(sv_2mortal(newSVpv(file,0)));
357 XPUSHs(sv_2mortal(newSViv(mode)));
359 rv = call_sv(_PLfuse_callbacks[10],G_SCALAR);
368 DEBUGf("chmod end: %i\n",rv);
373 int _PLfuse_chown (const char *file, uid_t uid, gid_t gid) {
379 DEBUGf("chown begin\n");
383 XPUSHs(sv_2mortal(newSVpv(file,0)));
384 XPUSHs(sv_2mortal(newSViv(uid)));
385 XPUSHs(sv_2mortal(newSViv(gid)));
387 rv = call_sv(_PLfuse_callbacks[11],G_SCALAR);
396 DEBUGf("chown end: %i\n",rv);
401 int _PLfuse_truncate (const char *file, off_t off) {
407 DEBUGf("truncate begin\n");
411 XPUSHs(sv_2mortal(newSVpv(file,0)));
412 XPUSHs(sv_2mortal(newSViv(off)));
414 rv = call_sv(_PLfuse_callbacks[12],G_SCALAR);
423 DEBUGf("truncate end: %i\n",rv);
428 int _PLfuse_utime (const char *file, struct utimbuf *uti) {
434 DEBUGf("utime begin\n");
438 XPUSHs(sv_2mortal(newSVpv(file,0)));
439 XPUSHs(sv_2mortal(newSViv(uti->actime)));
440 XPUSHs(sv_2mortal(newSViv(uti->modtime)));
442 rv = call_sv(_PLfuse_callbacks[13],G_SCALAR);
451 DEBUGf("utime end: %i\n",rv);
456 int _PLfuse_open (const char *file, struct fuse_file_info *fi) {
460 int flags = fi->flags;
463 DEBUGf("open begin\n");
467 XPUSHs(sv_2mortal(newSVpv(file,0)));
468 XPUSHs(sv_2mortal(newSViv(flags)));
470 rv = call_sv(_PLfuse_callbacks[14],G_SCALAR);
479 DEBUGf("open end: %i\n",rv);
484 int _PLfuse_read (const char *file, char *buf, size_t buflen, off_t off, struct fuse_file_info *fi) {
489 DEBUGf("read begin\n");
493 XPUSHs(sv_2mortal(newSVpv(file,0)));
494 XPUSHs(sv_2mortal(newSViv(buflen)));
495 XPUSHs(sv_2mortal(newSViv(off)));
497 rv = call_sv(_PLfuse_callbacks[15],G_SCALAR);
503 if(SvTYPE(mysv) == SVt_NV || SvTYPE(mysv) == SVt_IV)
512 croak("read() handler returned more than buflen! (%i > %i)",rv,buflen);
514 memcpy(buf,SvPV_nolen(mysv),rv);
520 DEBUGf("read end: %i\n",rv);
525 int _PLfuse_write (const char *file, const char *buf, size_t buflen, off_t off, struct fuse_file_info *fi) {
530 DEBUGf("write begin\n");
534 XPUSHs(sv_2mortal(newSVpv(file,0)));
535 XPUSHs(sv_2mortal(newSVpvn(buf,buflen)));
536 XPUSHs(sv_2mortal(newSViv(off)));
538 rv = call_sv(_PLfuse_callbacks[16],G_SCALAR);
547 DEBUGf("write end: %i\n",rv);
552 int _PLfuse_statfs (const char *file, struct statvfs *st) {
557 DEBUGf("statfs begin\n");
562 rv = call_sv(_PLfuse_callbacks[17],G_ARRAY);
564 DEBUGf("statfs got %i params\n",rv);
565 if(rv == 6 || rv == 7) {
571 st->f_namemax = POPi;
572 /* zero and fill-in other */
576 st->f_bavail = st->f_bfree;
577 st->f_favail = st->f_ffree;
585 croak("inappropriate number of returned values from statfs");
594 DEBUGf("statfs end: %i\n",rv);
599 int _PLfuse_flush (const char *file, struct fuse_file_info *fi) {
604 DEBUGf("flush begin\n");
608 XPUSHs(sv_2mortal(newSVpv(file,0)));
610 rv = call_sv(_PLfuse_callbacks[18],G_SCALAR);
619 DEBUGf("flush end: %i\n",rv);
624 int _PLfuse_release (const char *file, struct fuse_file_info *fi) {
627 int flags = fi->flags;
630 DEBUGf("release begin\n");
634 XPUSHs(sv_2mortal(newSVpv(file,0)));
635 XPUSHs(sv_2mortal(newSViv(flags)));
637 rv = call_sv(_PLfuse_callbacks[19],G_SCALAR);
646 DEBUGf("release end: %i\n",rv);
651 int _PLfuse_fsync (const char *file, int datasync, struct fuse_file_info *fi) {
654 int flags = fi->flags;
657 DEBUGf("fsync begin\n");
661 XPUSHs(sv_2mortal(newSVpv(file,0)));
662 XPUSHs(sv_2mortal(newSViv(flags)));
664 rv = call_sv(_PLfuse_callbacks[20],G_SCALAR);
673 DEBUGf("fsync end: %i\n",rv);
678 int _PLfuse_setxattr (const char *file, const char *name, const char *buf, size_t buflen, int flags) {
683 DEBUGf("setxattr begin\n");
687 XPUSHs(sv_2mortal(newSVpv(file,0)));
688 XPUSHs(sv_2mortal(newSVpv(name,0)));
689 XPUSHs(sv_2mortal(newSVpvn(buf,buflen)));
690 XPUSHs(sv_2mortal(newSViv(flags)));
692 rv = call_sv(_PLfuse_callbacks[21],G_SCALAR);
701 DEBUGf("setxattr end: %i\n",rv);
706 int _PLfuse_getxattr (const char *file, const char *name, char *buf, size_t buflen) {
711 DEBUGf("getxattr begin\n");
715 XPUSHs(sv_2mortal(newSVpv(file,0)));
716 XPUSHs(sv_2mortal(newSVpv(name,0)));
718 rv = call_sv(_PLfuse_callbacks[22],G_SCALAR);
726 if(SvTYPE(mysv) == SVt_NV || SvTYPE(mysv) == SVt_IV)
734 if ((rv > 0) && (buflen > 0))
739 memcpy(buf,SvPV_nolen(mysv),rv);
746 DEBUGf("getxattr end: %i\n",rv);
751 int _PLfuse_listxattr (const char *file, char *list, size_t size) {
756 DEBUGf("listxattr begin\n");
760 XPUSHs(sv_2mortal(newSVpv(file,0)));
762 prv = call_sv(_PLfuse_callbacks[23],G_ARRAY);
776 /* Always nul terminate */
777 if (list && (size > 0))
787 int s = SvCUR(mysv) + 1;
790 if (p && (size > 0) && (spc >= s))
792 memcpy(p,SvPV_nolen(mysv),s);
800 * If the Perl returned an error, return that.
801 * Otherwise check that the buffer was big enough.
806 if ((size > 0) && (size < total_len))
813 DEBUGf("listxattr end: %i\n",rv);
818 int _PLfuse_removexattr (const char *file, const char *name) {
823 DEBUGf("removexattr begin\n");
827 XPUSHs(sv_2mortal(newSVpv(file,0)));
828 XPUSHs(sv_2mortal(newSVpv(name,0)));
830 rv = call_sv(_PLfuse_callbacks[24],G_SCALAR);
839 DEBUGf("removexattr end: %i\n",rv);
844 struct fuse_operations _available_ops = {
845 getattr: _PLfuse_getattr,
846 readlink: _PLfuse_readlink,
847 getdir: _PLfuse_getdir,
849 readdir: _PLfuse_readdir,
851 mknod: _PLfuse_mknod,
852 mkdir: _PLfuse_mkdir,
853 unlink: _PLfuse_unlink,
854 rmdir: _PLfuse_rmdir,
855 symlink: _PLfuse_symlink,
856 rename: _PLfuse_rename,
858 chmod: _PLfuse_chmod,
859 chown: _PLfuse_chown,
860 truncate: _PLfuse_truncate,
861 utime: _PLfuse_utime,
864 write: _PLfuse_write,
865 statfs: _PLfuse_statfs,
866 flush: _PLfuse_flush,
867 release: _PLfuse_release,
868 fsync: _PLfuse_fsync,
869 setxattr: _PLfuse_setxattr,
870 getxattr: _PLfuse_getxattr,
871 listxattr: _PLfuse_listxattr,
872 removexattr: _PLfuse_removexattr,
875 MODULE = Fuse PACKAGE = Fuse
881 struct fuse_operations fops =
882 {NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,
883 NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL};
884 int i, fd, varnum = 0, debug, threaded, have_mnt;
887 struct fuse_args margs = FUSE_ARGS_INIT(0, NULL);
888 struct fuse_args fargs = FUSE_ARGS_INIT(0, NULL);
893 fprintf(stderr,"Perl<->C inconsistency or internal error\n");
898 threaded = SvIV(ST(1));
900 #ifdef FUSE_USE_ITHREADS
901 master_interp = PERL_GET_INTERP;
903 fprintf(stderr,"FUSE warning: Your script has requested multithreaded "
904 "mode, but your perl was not built with -Dusethreads. "
905 "Threads are disabled.\n");
909 mountpoint = SvPV_nolen(ST(2));
910 mountopts = SvPV_nolen(ST(3));
911 for(i=0;i<N_CALLBACKS;i++) {
913 /* allow symbolic references, or real code references. */
914 if(SvOK(var) && (SvPOK(var) || (SvROK(var) && SvTYPE(SvRV(var)) == SVt_PVCV))) {
915 void **tmp1 = (void**)&_available_ops, **tmp2 = (void**)&fops;
917 #ifdef FUSE_USE_ITHREADS
919 /* note: under 5.8.7, this croaks for code references. */
922 _PLfuse_callbacks[i] = var;
925 croak("invalid callback passed to perl_fuse_main "
926 "(%s is not a string, code ref, or undef).\n",
927 i+4,SvPVbyte_nolen(var));
931 * XXX: What comes here is just a ridiculous use of the option parsing API
932 * to hack on compatibility with other parts of the new API. First and
933 * foremost, real C argc/argv would be good to get at...
936 (fuse_opt_add_arg(&margs, "") == -1 ||
937 fuse_opt_add_arg(&margs, "-o") == -1 ||
938 fuse_opt_add_arg(&margs, mountopts) == -1)) {
939 fuse_opt_free_args(&margs);
940 croak("out of memory\n");
942 fd = fuse_mount(mountpoint,&margs);
943 fuse_opt_free_args(&margs);
945 croak("could not mount fuse filesystem!\n");
947 if ( fuse_opt_add_arg(&fargs, "") == -1 ||
948 fuse_opt_add_arg(&fargs, "-d") == -1) {
949 fuse_opt_free_args(&fargs);
950 croak("out of memory\n");
953 if (fuse_opt_add_arg(&fargs, "") == -1)
954 croak("out of memory\n");
958 fuse_loop_mt(fuse_new(fd,&fargs,&fops,sizeof(fops)/sizeof(void*)));
960 fuse_loop(fuse_new(fd,&fargs,&fops,sizeof(fops)/sizeof(void*)));
961 fuse_opt_free_args(&fargs);