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Fuse.xs
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#define PERL_NO_GET_CONTEXT
#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"
#include <fuse.h>
#if defined(__linux__) || defined(__APPLE__)
# include <sys/xattr.h>
#else
# define XATTR_CREATE 1
# define XATTR_REPLACE 2
#endif
#ifdef __OpenBSD__
#define FUSE_MAJOR_VERSION FUSE_FOUND_MAJOR_VER
#define FUSE_MINOR_VERSION FUSE_FOUND_MINOR_VER
#endif /* defined(__OpenBSD__) */
#if defined(__linux__) || defined(__sun__)
# define STAT_SEC(st, st_xtim) ((st)->st_xtim.tv_sec)
# define STAT_NSEC(st, st_xtim) ((st)->st_xtim.tv_nsec)
#else
# define STAT_SEC(st, st_xtim) ((st)->st_xtim##espec.tv_sec)
# define STAT_NSEC(st, st_xtim) ((st)->st_xtim##espec.tv_nsec)
#endif
/* Implement a macro to handle multiple formats (integer, float, and array
* containing seconds and nanoseconds). */
#define PULL_TIME(st, st_xtim, svp) \
{ \
SV *sv = svp; \
if (SvROK(sv)) { \
AV *av = (AV *)SvRV(sv); \
if (SvTYPE((SV *)av) != SVt_PVAV) { \
Perl_croak_nocontext("Reference was not array ref"); \
} \
if (av_len(av) != 1) { \
Perl_croak_nocontext("Array of incorrect dimension"); \
} \
STAT_SEC(st, st_xtim) = SvIV(*(av_fetch(av, 0, FALSE))); \
STAT_NSEC(st, st_xtim) = SvIV(*(av_fetch(av, 1, FALSE))); \
} \
else if (SvNOK(sv) || SvIOK(sv) || SvPOK(sv)) { \
double tm = SvNV(sv); \
STAT_SEC(st, st_xtim) = (int)tm; \
STAT_NSEC(st, st_xtim) = (tm - (int)tm) * 1000000000; \
} \
else { \
Perl_croak_nocontext("Invalid data type passed"); \
} \
}
/* Determine if threads support should be included */
#ifdef USE_ITHREADS
# ifdef I_PTHREAD
# define FUSE_USE_ITHREADS
# if (PERL_VERSION < 8) || (PERL_VERSION == 8 && PERL_SUBVERSION < 9)
# define tTHX PerlInterpreter*
# define STR_WITH_LEN(s) ("" s ""), (sizeof(s)-1)
# define hv_fetchs(hv,key,lval) Perl_hv_fetch(aTHX_ hv, STR_WITH_LEN(key), lval)
# define dMY_CXT_INTERP(interp) \
SV *my_cxt_sv = *hv_fetchs(interp->Imodglobal, MY_CXT_KEY, TRUE); \
my_cxt_t *my_cxtp = INT2PTR(my_cxt_t*, SvUV(my_cxt_sv))
# endif
# else
# warning "Sorry, I don't know how to handle ithreads on this architecture. Building non-threaded version"
# endif
#endif
/* Global Data */
#define MY_CXT_KEY "Fuse::_guts" XS_VERSION
#if FUSE_VERSION >= 29
# if FUSE_FOUND_MICRO_VER >= 1
# define N_CALLBACKS 45
# else /* FUSE_FOUND_MICRO_VER < 1 */
# define N_CALLBACKS 44
# endif
#elif FUSE_VERSION >= 28
# define N_CALLBACKS 41
#else /* FUSE_VERSION < 28 */
# define N_CALLBACKS 38
#endif
#define N_FLAGS 8
typedef struct {
SV *callback[N_CALLBACKS];
HV *handles;
#ifdef USE_ITHREADS
tTHX self;
#endif
int threaded;
#ifdef USE_ITHREADS
perl_mutex mutex;
#endif
int utimens_as_array;
} my_cxt_t;
START_MY_CXT;
#ifdef FUSE_USE_ITHREADS
tTHX master_interp = NULL;
#define CLONE_INTERP(parent) S_clone_interp(parent)
tTHX S_clone_interp(tTHX parent) {
# if (PERL_VERSION < 10)
tTHX my_perl = parent;
#endif
dMY_CXT_INTERP(parent);
if(MY_CXT.threaded) {
MUTEX_LOCK(&MY_CXT.mutex);
PERL_SET_CONTEXT(parent);
dTHX;
#if (PERL_VERSION > 10) || (PERL_VERSION == 10 && PERL_SUBVERSION >= 1)
tTHX child = perl_clone(parent, CLONEf_CLONE_HOST | CLONEf_COPY_STACKS);
#else
tTHX child = perl_clone(parent, CLONEf_CLONE_HOST | CLONEf_COPY_STACKS | CLONEf_KEEP_PTR_TABLE);
ptr_table_free(PL_ptr_table);
PL_ptr_table = NULL;
#endif
MUTEX_UNLOCK(&MY_CXT.mutex);
return child;
}
return NULL;
}
# define FUSE_CONTEXT_PRE dTHX; if(!aTHX) aTHX = CLONE_INTERP(master_interp); { dMY_CXT; dSP;
# define FUSE_CONTEXT_POST }
#else
# define FUSE_CONTEXT_PRE dTHX; dMY_CXT; dSP;
# define FUSE_CONTEXT_POST
#endif
#undef DEBUGf
#if 0
#define DEBUGf(f, a...) fprintf(stderr, "%s:%d (%i): " f,__BASE_FILE__,__LINE__,sp-PL_stack_base ,##a )
#else
#define DEBUGf(a...)
#endif
#define FH_KEY(fi) sv_2mortal(newSViv((fi)->fh))
#define FH_GETHANDLE(fi) S_fh_get_handle(aTHX_ aMY_CXT_ fi)
#define FH_STOREHANDLE(fi,sv) S_fh_store_handle(aTHX_ aMY_CXT_ fi, sv)
#define FH_RELEASEHANDLE(fi) S_fh_release_handle(aTHX_ aMY_CXT_ fi)
SV *S_fh_get_handle(pTHX_ pMY_CXT_ struct fuse_file_info *fi) {
SV *val;
val = &PL_sv_undef;
if(fi->fh != 0) {
HE *he;
if((he = hv_fetch_ent(MY_CXT.handles, FH_KEY(fi), 0, 0))) {
val = HeVAL(he);
SvGETMAGIC(val);
}
}
return val;
}
void S_fh_release_handle(pTHX_ pMY_CXT_ struct fuse_file_info *fi) {
if(fi->fh != 0) {
(void)hv_delete_ent(MY_CXT.handles, FH_KEY(fi), G_DISCARD, 0);
fi->fh = 0;
}
}
void S_fh_store_handle(pTHX_ pMY_CXT_ struct fuse_file_info *fi, SV *sv) {
if(SvOK(sv)) {
#ifdef FUSE_USE_ITHREADS
if(MY_CXT.threaded) {
SvSHARE(sv);
}
#endif
/* This seems to be screwing things up... */
// MAGIC *mg = (SvTYPE(sv) == SVt_PVMG) ? mg_find(sv, PERL_MAGIC_shared_scalar) : NULL;
// fi->fh = mg ? PTR2IV(mg->mg_ptr) : PTR2IV(sv);
fi->fh = PTR2IV(sv);
if(hv_store_ent(MY_CXT.handles, FH_KEY(fi), SvREFCNT_inc(sv), 0) == NULL) {
SvREFCNT_dec(sv);
}
SvSETMAGIC(sv);
}
}
int _PLfuse_getattr(const char *file, struct stat *result) {
int rv;
FUSE_CONTEXT_PRE;
DEBUGf("getattr begin: %s\n",file);
ENTER;
SAVETMPS;
PUSHMARK(SP);
XPUSHs(sv_2mortal(newSVpv(file,strlen(file))));
PUTBACK;
rv = call_sv(MY_CXT.callback[0],G_ARRAY);
SPAGAIN;
if(rv != 13) {
if(rv > 1) {
fprintf(stderr,"inappropriate number of returned values from getattr\n");
rv = -ENOSYS;
} else if(rv)
rv = POPi;
else
rv = -ENOENT;
} else {
result->st_blocks = POPi;
result->st_blksize = POPi;
PULL_TIME(result, st_ctim, POPs);
PULL_TIME(result, st_mtim, POPs);
PULL_TIME(result, st_atim, POPs);
result->st_size = POPn; // we pop double here to support files larger than 4Gb (long limit)
result->st_rdev = POPi;
result->st_gid = POPi;
result->st_uid = POPi;
result->st_nlink = POPi;
result->st_mode = POPi;
result->st_ino = POPi;
result->st_dev = POPi;
rv = 0;
}
FREETMPS;
LEAVE;
PUTBACK;
DEBUGf("getattr end: %i\n",rv);
FUSE_CONTEXT_POST;
return rv;
}
int _PLfuse_readlink(const char *file,char *buf,size_t buflen) {
int rv;
if(buflen < 1)
return EINVAL;
FUSE_CONTEXT_PRE;
DEBUGf("readlink begin\n");
ENTER;
SAVETMPS;
PUSHMARK(SP);
XPUSHs(sv_2mortal(newSVpv(file,0)));
PUTBACK;
rv = call_sv(MY_CXT.callback[1],G_SCALAR);
SPAGAIN;
if(!rv)
rv = -ENOENT;
else {
SV *mysv = POPs;
if(SvTYPE(mysv) == SVt_IV || SvTYPE(mysv) == SVt_NV)
rv = SvIV(mysv);
else {
strncpy(buf,SvPV_nolen(mysv),buflen);
rv = 0;
}
}
FREETMPS;
LEAVE;
buf[buflen-1] = 0;
PUTBACK;
DEBUGf("readlink end: %i\n",rv);
FUSE_CONTEXT_POST;
return rv;
}
int _PLfuse_getdir(const char *file, fuse_dirh_t dirh, fuse_dirfil_t dirfil) {
int prv, rv;
SV **swp;
FUSE_CONTEXT_PRE;
DEBUGf("getdir begin\n");
ENTER;
SAVETMPS;
PUSHMARK(SP);
XPUSHs(sv_2mortal(newSVpv(file,0)));
PUTBACK;
prv = call_sv(MY_CXT.callback[2],G_ARRAY);
SPAGAIN;
if(prv) {
/* Should yield the bottom of the current stack... */
swp = SP - prv + 1;
rv = POPi;
/* Sort of a hack to walk the stack in order, instead of reverse
* order - trying to explain to potential users why they need to
* reverse the order of this array would be confusing, at best. */
while (swp <= SP)
dirfil(dirh,SvPVx_nolen(*(swp++)),0,0);
SP -= prv - 1;
} else {
fprintf(stderr,"getdir() handler returned nothing!\n");
rv = -ENOSYS;
}
FREETMPS;
LEAVE;
PUTBACK;
DEBUGf("getdir end: %i\n",rv);
FUSE_CONTEXT_POST;
return rv;
}
int _PLfuse_mknod (const char *file, mode_t mode, dev_t dev) {
int rv;
FUSE_CONTEXT_PRE;
DEBUGf("mknod begin\n");
ENTER;
SAVETMPS;
PUSHMARK(SP);
XPUSHs(sv_2mortal(newSVpv(file,0)));
XPUSHs(sv_2mortal(newSViv(mode)));
XPUSHs(sv_2mortal(newSViv(dev)));
PUTBACK;
rv = call_sv(MY_CXT.callback[3],G_SCALAR);
SPAGAIN;
rv = (rv ? POPi : 0);
FREETMPS;
LEAVE;
PUTBACK;
DEBUGf("mknod end: %i\n",rv);
FUSE_CONTEXT_POST;
return rv;
}
int _PLfuse_mkdir (const char *file, mode_t mode) {
int rv;
FUSE_CONTEXT_PRE;
DEBUGf("mkdir begin\n");
ENTER;
SAVETMPS;
PUSHMARK(SP);
XPUSHs(sv_2mortal(newSVpv(file,0)));
XPUSHs(sv_2mortal(newSViv(mode)));
PUTBACK;
rv = call_sv(MY_CXT.callback[4],G_SCALAR);
SPAGAIN;
rv = (rv ? POPi : 0);
FREETMPS;
LEAVE;
PUTBACK;
DEBUGf("mkdir end: %i\n",rv);
FUSE_CONTEXT_POST;
return rv;
}
int _PLfuse_unlink (const char *file) {
int rv;
FUSE_CONTEXT_PRE;
DEBUGf("unlink begin\n");
ENTER;
SAVETMPS;
PUSHMARK(SP);
XPUSHs(sv_2mortal(newSVpv(file,0)));
PUTBACK;
rv = call_sv(MY_CXT.callback[5],G_SCALAR);
SPAGAIN;
rv = (rv ? POPi : 0);
FREETMPS;
LEAVE;
PUTBACK;
DEBUGf("unlink end: %i\n",rv);
FUSE_CONTEXT_POST;
return rv;
}
int _PLfuse_rmdir (const char *file) {
int rv;
FUSE_CONTEXT_PRE;
DEBUGf("rmdir begin\n");
ENTER;
SAVETMPS;
PUSHMARK(SP);
XPUSHs(sv_2mortal(newSVpv(file,0)));
PUTBACK;
rv = call_sv(MY_CXT.callback[6],G_SCALAR);
SPAGAIN;
rv = (rv ? POPi : 0);
FREETMPS;
LEAVE;
PUTBACK;
DEBUGf("rmdir end: %i\n",rv);
FUSE_CONTEXT_POST;
return rv;
}
int _PLfuse_symlink (const char *file, const char *new) {
int rv;
FUSE_CONTEXT_PRE;
DEBUGf("symlink begin\n");
ENTER;
SAVETMPS;
PUSHMARK(SP);
XPUSHs(sv_2mortal(newSVpv(file,0)));
XPUSHs(sv_2mortal(newSVpv(new,0)));
PUTBACK;
rv = call_sv(MY_CXT.callback[7],G_SCALAR);
SPAGAIN;
rv = (rv ? POPi : 0);
FREETMPS;
LEAVE;
PUTBACK;
DEBUGf("symlink end: %i\n",rv);
FUSE_CONTEXT_POST;
return rv;
}
int _PLfuse_rename (const char *file, const char *new) {
int rv;
FUSE_CONTEXT_PRE;
DEBUGf("rename begin\n");
ENTER;
SAVETMPS;
PUSHMARK(SP);
XPUSHs(sv_2mortal(newSVpv(file,0)));
XPUSHs(sv_2mortal(newSVpv(new,0)));
PUTBACK;
rv = call_sv(MY_CXT.callback[8],G_SCALAR);
SPAGAIN;
rv = (rv ? POPi : 0);
FREETMPS;
LEAVE;
PUTBACK;
DEBUGf("rename end: %i\n",rv);
FUSE_CONTEXT_POST;
return rv;
}
int _PLfuse_link (const char *file, const char *new) {
int rv;
FUSE_CONTEXT_PRE;
DEBUGf("link begin\n");
ENTER;
SAVETMPS;
PUSHMARK(SP);
XPUSHs(sv_2mortal(newSVpv(file,0)));
XPUSHs(sv_2mortal(newSVpv(new,0)));
PUTBACK;
rv = call_sv(MY_CXT.callback[9],G_SCALAR);
SPAGAIN;
rv = (rv ? POPi : 0);
FREETMPS;
LEAVE;
PUTBACK;
DEBUGf("link end: %i\n",rv);
FUSE_CONTEXT_POST;
return rv;
}
int _PLfuse_chmod (const char *file, mode_t mode) {
int rv;
FUSE_CONTEXT_PRE;
DEBUGf("chmod begin\n");
ENTER;
SAVETMPS;
PUSHMARK(SP);
XPUSHs(sv_2mortal(newSVpv(file,0)));
XPUSHs(sv_2mortal(newSViv(mode)));
PUTBACK;
rv = call_sv(MY_CXT.callback[10],G_SCALAR);
SPAGAIN;
rv = (rv ? POPi : 0);
FREETMPS;
LEAVE;
PUTBACK;
DEBUGf("chmod end: %i\n",rv);
FUSE_CONTEXT_POST;
return rv;
}
int _PLfuse_chown (const char *file, uid_t uid, gid_t gid) {
int rv;
FUSE_CONTEXT_PRE;
DEBUGf("chown begin\n");
ENTER;
SAVETMPS;
PUSHMARK(SP);
XPUSHs(sv_2mortal(newSVpv(file,0)));
XPUSHs(sv_2mortal(newSViv(uid)));
XPUSHs(sv_2mortal(newSViv(gid)));
PUTBACK;
rv = call_sv(MY_CXT.callback[11],G_SCALAR);
SPAGAIN;
rv = (rv ? POPi : 0);
FREETMPS;
LEAVE;
PUTBACK;
DEBUGf("chown end: %i\n",rv);
FUSE_CONTEXT_POST;
return rv;
}
int _PLfuse_truncate (const char *file, off_t off) {
int rv;
#ifndef PERL_HAS_64BITINT
char *temp;
#endif
FUSE_CONTEXT_PRE;
DEBUGf("truncate begin\n");
ENTER;
SAVETMPS;
PUSHMARK(SP);
XPUSHs(sv_2mortal(newSVpv(file,0)));
#ifdef PERL_HAS_64BITINT
XPUSHs(sv_2mortal(newSViv(off)));
#else
if (asprintf(&temp, "%llu", off) == -1)
croak("Memory allocation failure!");
XPUSHs(sv_2mortal(newSVpv(temp, 0)));
free(temp);
#endif
PUTBACK;
rv = call_sv(MY_CXT.callback[12],G_SCALAR);
SPAGAIN;
rv = (rv ? POPi : 0);
FREETMPS;
LEAVE;
PUTBACK;
DEBUGf("truncate end: %i\n",rv);
FUSE_CONTEXT_POST;
return rv;
}
int _PLfuse_utime (const char *file, struct utimbuf *uti) {
int rv;
FUSE_CONTEXT_PRE;
DEBUGf("utime begin\n");
ENTER;
SAVETMPS;
PUSHMARK(SP);
XPUSHs(sv_2mortal(newSVpv(file,0)));
XPUSHs(sv_2mortal(newSViv(uti->actime)));
XPUSHs(sv_2mortal(newSViv(uti->modtime)));
PUTBACK;
rv = call_sv(MY_CXT.callback[13],G_SCALAR);
SPAGAIN;
rv = (rv ? POPi : 0);
FREETMPS;
LEAVE;
PUTBACK;
DEBUGf("utime end: %i\n",rv);
FUSE_CONTEXT_POST;
return rv;
}
int _PLfuse_open (const char *file, struct fuse_file_info *fi) {
int rv;
int flags = fi->flags;
HV *fihash;
FUSE_CONTEXT_PRE;
DEBUGf("open begin\n");
ENTER;
SAVETMPS;
PUSHMARK(SP);
XPUSHs(sv_2mortal(newSVpv(file,0)));
XPUSHs(sv_2mortal(newSViv(flags)));
/* Create a hashref containing the details from fi
* which we can look at or modify.
*/
fi->fh = 0; /* Ensure it starts with 0 - important if they don't set it */
fihash = newHV();
(void) hv_store(fihash, "direct_io", 9, newSViv(fi->direct_io), 0);
(void) hv_store(fihash, "keep_cache", 10, newSViv(fi->keep_cache), 0);
#if FUSE_VERSION >= 28
(void) hv_store(fihash, "nonseekable", 11, newSViv(fi->nonseekable), 0);
#endif
XPUSHs(sv_2mortal(newRV_noinc((SV*) fihash)));
/* All hashref things done */
PUTBACK;
/* Open called with filename, flags */
rv = call_sv(MY_CXT.callback[14],G_ARRAY);
SPAGAIN;
if(rv) {
if(rv > 1) {
FH_STOREHANDLE(fi,POPs);
}
rv = POPi;
}
else
rv = 0;
if (rv == 0)
{
/* Success, so copy the file handle which they returned */
SV **svp;
if ((svp = hv_fetch(fihash, "direct_io", 9, 0)) != NULL)
fi->direct_io = SvIV(*svp);
if ((svp = hv_fetch(fihash, "keep_cache", 10, 0)) != NULL)
fi->keep_cache = SvIV(*svp);
#if FUSE_VERSION >= 28
if ((svp = hv_fetch(fihash, "nonseekable", 11, 0)) != NULL)
fi->nonseekable = SvIV(*svp);
#endif
}
FREETMPS;
LEAVE;
PUTBACK;
DEBUGf("open end: %i\n",rv);
FUSE_CONTEXT_POST;
return rv;
}
int _PLfuse_read (const char *file, char *buf, size_t buflen, off_t off,
struct fuse_file_info *fi) {
int rv;
#ifndef PERL_HAS_64BITINT
char *temp;
#endif
FUSE_CONTEXT_PRE;
DEBUGf("read begin\n");
ENTER;
SAVETMPS;
PUSHMARK(SP);
XPUSHs(file ? sv_2mortal(newSVpv(file,0)) : &PL_sv_undef);
XPUSHs(sv_2mortal(newSViv(buflen)));
#ifdef PERL_HAS_64BITINT
XPUSHs(sv_2mortal(newSViv(off)));
#else
if (asprintf(&temp, "%llu", off) == -1)
croak("Memory allocation failure!");
XPUSHs(sv_2mortal(newSVpv(temp, 0)));
free(temp);
#endif
XPUSHs(FH_GETHANDLE(fi));
PUTBACK;
rv = call_sv(MY_CXT.callback[15],G_SCALAR);
SPAGAIN;
if(!rv)
rv = -ENOENT;
else {
SV *mysv = POPs;
if(SvTYPE(mysv) == SVt_NV || SvTYPE(mysv) == SVt_IV)
rv = SvIV(mysv);
else {
if(SvPOK(mysv)) {
rv = SvCUR(mysv);
} else {
rv = 0;
}
if(rv > buflen)
croak("read() handler returned more than buflen! (%i > %i)",rv,buflen);
if(rv)
memcpy(buf,SvPV_nolen(mysv),rv);
}
}
FREETMPS;
LEAVE;
PUTBACK;
DEBUGf("read end: %i\n",rv);
FUSE_CONTEXT_POST;
return rv;
}
int _PLfuse_write (const char *file, const char *buf, size_t buflen, off_t off, struct fuse_file_info *fi) {
int rv;
SV *sv;
#ifndef PERL_HAS_64BITINT
char *temp;
#endif
FUSE_CONTEXT_PRE;
DEBUGf("write begin\n");
ENTER;
SAVETMPS;
PUSHMARK(SP);
XPUSHs(file ? sv_2mortal(newSVpv(file,0)) : &PL_sv_undef);
#if (PERL_VERSION < 8) || (PERL_VERSION == 8 && PERL_SUBVERSION < 9)
sv = newSV(0);
sv_upgrade(sv, SVt_PV);
#else
sv = newSV_type(SVt_PV);
#endif
SvPV_set(sv, (char *)buf);
SvLEN_set(sv, 0);
SvCUR_set(sv, buflen);
SvPOK_on(sv);
SvREADONLY_on(sv);
XPUSHs(sv_2mortal(sv));
#ifdef PERL_HAS_64BITINT
XPUSHs(sv_2mortal(newSViv(off)));
#else
if (asprintf(&temp, "%llu", off) == -1)
croak("Memory allocation failure!");
XPUSHs(sv_2mortal(newSVpv(temp, 0)));
free(temp);
#endif
XPUSHs(FH_GETHANDLE(fi));
PUTBACK;
rv = call_sv(MY_CXT.callback[16],G_SCALAR);
SPAGAIN;
rv = (rv ? POPi : 0);
FREETMPS;
LEAVE;
PUTBACK;
DEBUGf("write end: %i\n",rv);
FUSE_CONTEXT_POST;
return rv;
}
int _PLfuse_statfs (const char *file, struct statvfs *st) {
int rv;
FUSE_CONTEXT_PRE;
DEBUGf("statfs begin\n");
ENTER;
SAVETMPS;
PUSHMARK(SP);
PUTBACK;
rv = call_sv(MY_CXT.callback[17],G_ARRAY);
SPAGAIN;
DEBUGf("statfs got %i params\n",rv);
if(rv == 6 || rv == 7) {
st->f_bsize = POPi;
st->f_bfree = POPi;
st->f_blocks = POPi;
st->f_ffree = POPi;
st->f_files = POPi;
st->f_namemax = POPi;
/* zero and fill-in other */
st->f_fsid = 0;
st->f_flag = 0;
st->f_frsize = st->f_bsize;
st->f_bavail = st->f_bfree;
st->f_favail = st->f_ffree;
if(rv == 7)
rv = POPi;
else
rv = 0;
} else
if(rv > 1)
croak("inappropriate number of returned values from statfs");
else
if(rv)
rv = POPi;
else
rv = -ENOSYS;
FREETMPS;
LEAVE;
PUTBACK;
DEBUGf("statfs end: %i\n",rv);
FUSE_CONTEXT_POST;
return rv;
}
int _PLfuse_flush (const char *file, struct fuse_file_info *fi) {
int rv;
FUSE_CONTEXT_PRE;
DEBUGf("flush begin\n");
ENTER;
SAVETMPS;
PUSHMARK(SP);
XPUSHs(file ? sv_2mortal(newSVpv(file,0)) : &PL_sv_undef);
XPUSHs(FH_GETHANDLE(fi));
PUTBACK;
rv = call_sv(MY_CXT.callback[18],G_SCALAR);
SPAGAIN;
rv = (rv ? POPi : 0);
FREETMPS;
LEAVE;
PUTBACK;
DEBUGf("flush end: %i\n",rv);
FUSE_CONTEXT_POST;
return rv;
}
int _PLfuse_release (const char *file, struct fuse_file_info *fi) {
int rv;
int flags = fi->flags;
FUSE_CONTEXT_PRE;
DEBUGf("release begin\n");
ENTER;
SAVETMPS;
PUSHMARK(SP);
XPUSHs(file ? sv_2mortal(newSVpv(file,0)) : &PL_sv_undef);
XPUSHs(sv_2mortal(newSViv(flags)));
XPUSHs(FH_GETHANDLE(fi));
#if FUSE_VERSION >= 29
XPUSHs(fi->flock_release ? sv_2mortal(newSViv(1)) : &PL_sv_undef);
# ifdef PERL_HAS_64BITINT
XPUSHs(sv_2mortal(newSViv(fi->lock_owner)));
# else
if (asprintf(&temp, "%llu", fi->lock_owner) == -1)
croak("Memory allocation failure!");
XPUSHs(sv_2mortal(newSVpv(temp, 0)));
# endif
#endif
PUTBACK;
rv = call_sv(MY_CXT.callback[19],G_SCALAR);
SPAGAIN;
rv = (rv ? POPi : 0);
FH_RELEASEHANDLE(fi);
FREETMPS;
LEAVE;
PUTBACK;
DEBUGf("release end: %i\n",rv);
FUSE_CONTEXT_POST;
return rv;
}
int _PLfuse_fsync (const char *file, int datasync, struct fuse_file_info *fi) {
int rv;
int flags = fi->flags;
FUSE_CONTEXT_PRE;
DEBUGf("fsync begin\n");
ENTER;
SAVETMPS;
PUSHMARK(SP);
XPUSHs(file ? sv_2mortal(newSVpv(file,0)) : &PL_sv_undef);
XPUSHs(sv_2mortal(newSViv(flags)));
XPUSHs(FH_GETHANDLE(fi));
PUTBACK;
rv = call_sv(MY_CXT.callback[20],G_SCALAR);
SPAGAIN;
rv = (rv ? POPi : 0);
FREETMPS;
LEAVE;
PUTBACK;
DEBUGf("fsync end: %i\n",rv);
FUSE_CONTEXT_POST;
return rv;
}
#ifdef __APPLE__
int _PLfuse_setxattr (const char *file, const char *name, const char *buf, size_t buflen, int flags, uint32_t position) {
#else
int _PLfuse_setxattr (const char *file, const char *name, const char *buf, size_t buflen, int flags) {
#endif
int rv;
FUSE_CONTEXT_PRE;
DEBUGf("setxattr begin\n");
ENTER;
SAVETMPS;
PUSHMARK(SP);
XPUSHs(sv_2mortal(newSVpv(file,0)));
XPUSHs(sv_2mortal(newSVpv(name,0)));
XPUSHs(sv_2mortal(newSVpvn(buf,buflen)));
XPUSHs(sv_2mortal(newSViv(flags)));
PUTBACK;
rv = call_sv(MY_CXT.callback[21],G_SCALAR);
SPAGAIN;
rv = (rv ? POPi : 0);
FREETMPS;
LEAVE;
PUTBACK;
DEBUGf("setxattr end: %i\n",rv);
FUSE_CONTEXT_POST;
return rv;
}
#ifdef __APPLE__
int _PLfuse_getxattr (const char *file, const char *name, char *buf, size_t buflen, uint32_t position) {
#else
int _PLfuse_getxattr (const char *file, const char *name, char *buf, size_t buflen) {
#endif
int rv;
FUSE_CONTEXT_PRE;
DEBUGf("getxattr begin\n");
ENTER;
SAVETMPS;
PUSHMARK(SP);
XPUSHs(sv_2mortal(newSVpv(file,0)));
XPUSHs(sv_2mortal(newSVpv(name,0)));
PUTBACK;
rv = call_sv(MY_CXT.callback[22],G_SCALAR);
SPAGAIN;
if(!rv)
rv = -ENOENT;
else {
SV *mysv = POPs;
rv = 0;
if(SvTYPE(mysv) == SVt_NV || SvTYPE(mysv) == SVt_IV)
rv = SvIV(mysv);
else {
if(SvPOK(mysv)) {
rv = SvCUR(mysv);
} else {
rv = 0;
}
if ((rv > 0) && (buflen > 0))
{
if(rv > buflen)
rv = -ERANGE;
else
memcpy(buf,SvPV_nolen(mysv),rv);
}
}
}
FREETMPS;
LEAVE;
PUTBACK;
DEBUGf("getxattr end: %i\n",rv);
FUSE_CONTEXT_POST;
return rv;
}
int _PLfuse_listxattr (const char *file, char *list, size_t size) {
int prv, rv;
FUSE_CONTEXT_PRE;
DEBUGf("listxattr begin\n");
ENTER;
SAVETMPS;
PUSHMARK(SP);
XPUSHs(sv_2mortal(newSVpv(file,0)));
PUTBACK;
prv = call_sv(MY_CXT.callback[23],G_ARRAY);
SPAGAIN;
if(!prv)
rv = -ENOENT;
else {
char *p = list;
int spc = size;
int total_len = 0;
rv = POPi;
prv--;
/* Always nul terminate */
if (list && (size > 0))
list[0] = '\0';
while (prv > 0)
{
SV *mysv = POPs;
prv--;
if (SvPOK(mysv)) {
/* Copy nul too */
int s = SvCUR(mysv) + 1;
total_len += s;
if (p && (size > 0) && (spc >= s))
{
memcpy(p,SvPV_nolen(mysv),s);
p += s;
spc -= s;
}
}
}
/*
* If the Perl returned an error, return that.
* Otherwise check that the buffer was big enough.
*/
if (rv == 0)
{
rv = total_len;
if ((size > 0) && (size < total_len))
rv = -ERANGE;
}
}
FREETMPS;
LEAVE;
PUTBACK;
DEBUGf("listxattr end: %i\n",rv);
FUSE_CONTEXT_POST;
return rv;
}
int _PLfuse_removexattr (const char *file, const char *name) {
int rv;
FUSE_CONTEXT_PRE;
DEBUGf("removexattr begin\n");
ENTER;
SAVETMPS;
PUSHMARK(SP);
XPUSHs(sv_2mortal(newSVpv(file,0)));
XPUSHs(sv_2mortal(newSVpv(name,0)));
PUTBACK;
rv = call_sv(MY_CXT.callback[24],G_SCALAR);
SPAGAIN;
rv = (rv ? POPi : 0);
FREETMPS;
LEAVE;
PUTBACK;
DEBUGf("removexattr end: %i\n",rv);
FUSE_CONTEXT_POST;
return rv;
}
int _PLfuse_opendir(const char *file, struct fuse_file_info *fi) {
int rv;
FUSE_CONTEXT_PRE;
DEBUGf("opendir begin\n");
ENTER;
SAVETMPS;
PUSHMARK(SP);
XPUSHs(sv_2mortal(newSVpv(file,0)));
fi->fh = 0; /* Ensure it starts with 0 - important if they don't set it */
PUTBACK;
rv = call_sv(MY_CXT.callback[25], G_ARRAY);
SPAGAIN;
if (rv) {
if (rv > 1) {
FH_STOREHANDLE(fi, POPs);
}
rv = POPi;
} else
rv = 0;
FREETMPS;
LEAVE;
PUTBACK;
DEBUGf("opendir end: %i\n",rv);
FUSE_CONTEXT_POST;
return rv;
}
int _PLfuse_readdir(const char *file, void *dirh, fuse_fill_dir_t dirfil,
off_t off, struct fuse_file_info *fi) {
int prv = 0, rv;