GLvoid * EL(SV * sv, int needlen)
{
STRLEN skip = 0;
SV * svref;
if (SvREADONLY(sv))
croak("Readonly value for buffer");
if(SvROK(sv)) {
svref = SvRV(sv);
sv = svref;
}
else
{
#ifdef USE_STRICT_UNGLOB
if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV)
sv_unglob(sv);
#endif
SvUPGRADE(sv, SVt_PV);
SvGROW(sv, (unsigned int)(needlen + 1));
SvPOK_on(sv);
SvCUR_set(sv, needlen);
*SvEND(sv) = '\0'; /* Why is this here? -chm */
}
return SvPV_force(sv, skip);
}
SSize_t
PerlIOScalar_write(pTHX_ PerlIO * f, const void *vbuf, Size_t count)
{
if (PerlIOBase(f)->flags & PERLIO_F_CANWRITE) {
Off_t offset;
PerlIOScalar *s = PerlIOSelf(f, PerlIOScalar);
SV *sv = s->var;
char *dst;
if ((PerlIOBase(f)->flags) & PERLIO_F_APPEND) {
dst = SvGROW(sv, SvCUR(sv) + count);
offset = SvCUR(sv);
s->posn = offset + count;
}
else {
if ((s->posn + count) > SvCUR(sv))
dst = SvGROW(sv, (STRLEN)s->posn + count);
else
dst = SvPV_nolen(sv);
offset = s->posn;
s->posn += count;
}
Move(vbuf, dst + offset, count, char);
if ((STRLEN) s->posn > SvCUR(sv))
SvCUR_set(sv, (STRLEN)s->posn);
SvPOK_on(s->var);
return count;
}
static HV*
S_thaw_fields(lucy_InStream *instream) {
// Read frozen data into an SV buffer.
size_t len = (size_t)LUCY_InStream_Read_C64(instream);
SV *buf_sv = newSV(len + 1);
SvPOK_on(buf_sv);
SvCUR_set(buf_sv, len);
char *buf = SvPVX(buf_sv);
LUCY_InStream_Read_Bytes(instream, buf, len);
// Call back to Storable to thaw the frozen hash.
dSP;
ENTER;
SAVETMPS;
EXTEND(SP, 1);
PUSHMARK(SP);
mPUSHs(buf_sv);
PUTBACK;
call_pv("Storable::thaw", G_SCALAR);
SPAGAIN;
SV *frozen = POPs;
if (frozen && !SvROK(frozen)) {
CFISH_THROW(CFISH_ERR, "thaw failed");
}
HV *fields = (HV*)SvRV(frozen);
(void)SvREFCNT_inc((SV*)fields);
PUTBACK;
FREETMPS;
LEAVE;
return fields;
}
static void pe_tracevar(pe_watcher *wa, SV *sv, int got) {
/* Adapted from tkGlue.c
We are a "magic" set processor.
So we are (I think) supposed to look at "private" flags
and set the public ones if appropriate.
e.g. "chop" sets SvPOKp as a hint but not SvPOK
presumably other operators set other private bits.
Question are successive "magics" called in correct order?
i.e. if we are tracing a tied variable should we call
some magic list or be careful how we insert ourselves in the list?
*/
pe_ioevent *ev;
if (SvPOKp(sv)) SvPOK_on(sv);
if (SvNOKp(sv)) SvNOK_on(sv);
if (SvIOKp(sv)) SvIOK_on(sv);
ev = (pe_ioevent*) (*wa->vtbl->new_event)(wa);
++ev->base.hits;
ev->got |= got;
queueEvent((pe_event*) ev);
}
SV* P_newSVqv2(pTHX_ int i, const char* (*func)(int i,int* len)){
int len;
const char* s=(*func)(i,&len);
SV* m=newSVpv(s,len);
sv_setiv(m,i);
SvPOK_on(m);
return m;
}
SSize_t
PerlIOScalar_unread(pTHX_ PerlIO * f, const void *vbuf, Size_t count)
{
PerlIOScalar *s = PerlIOSelf(f, PerlIOScalar);
char *dst = SvGROW(s->var, (STRLEN)s->posn + count);
Move(vbuf, dst + s->posn, count, char);
s->posn += count;
SvCUR_set(s->var, (STRLEN)s->posn);
SvPOK_on(s->var);
return count;
}
static
XS(epoc_getcwd) /* more or less stolen from win32.c */
{
dXSARGS;
/* Make the host for current directory */
char *buffer;
int buflen = 256;
char *ptr;
buffer = (char *) malloc( buflen);
if (buffer == NULL) {
XSRETURN_UNDEF;
}
while ((NULL == ( ptr = getcwd( buffer, buflen))) && (errno == ERANGE)) {
buflen *= 2;
if (NULL == realloc( buffer, buflen)) {
XSRETURN_UNDEF;
}
}
/*
* If ptr != Nullch
* then it worked, set PV valid,
* else return 'undef'
*/
if (ptr) {
SV *sv = sv_newmortal();
char *tptr;
for (tptr = ptr; *tptr != '\0'; tptr++) {
if (*tptr == '\\') {
*tptr = '/';
}
}
sv_setpv(sv, ptr);
free( buffer);
EXTEND(SP,1);
SvPOK_on(sv);
ST(0) = sv;
#ifndef INCOMPLETE_TAINTS
SvTAINTED_on(ST(0));
#endif
XSRETURN(1);
}
free( buffer);
XSRETURN_UNDEF;
}
static void
tn_encode_hash(SV *data, struct tn_buffer *buf)
{
HV *hash = (HV *)data;
HE *entry;
SV *key;
hv_iterinit(hash);
while(entry = hv_iternext(hash)) {
key = hv_iterkeysv(entry);
SvPOK_on(key);
tn_encode(hv_iterval(hash, entry), buf);
tn_encode(key, buf);
}
}
MP_INLINE SV *modperl_slurp_filename(pTHX_ request_rec *r, int tainted)
{
SV *sv;
apr_status_t rc;
apr_size_t size;
apr_file_t *file;
size = r->finfo.size;
sv = newSV(size);
/* XXX: could have checked whether r->finfo.filehand is valid and
* save the apr_file_open call, but apache gives us no API to
* check whether filehand is valid. we can't test whether it's
* NULL or not, as it may contain garbagea
*/
rc = apr_file_open(&file, r->filename, APR_READ|APR_BINARY,
APR_OS_DEFAULT, r->pool);
SLURP_SUCCESS("opening");
rc = apr_file_read(file, SvPVX(sv), &size);
SLURP_SUCCESS("reading");
MP_TRACE_o(MP_FUNC, "read %d bytes from '%s'", size, r->filename);
if (r->finfo.size != size) {
SvREFCNT_dec(sv);
Perl_croak(aTHX_ "Error: read %d bytes, expected %d ('%s')",
size, (apr_size_t)r->finfo.size, r->filename);
}
rc = apr_file_close(file);
SLURP_SUCCESS("closing");
SvPVX(sv)[size] = '\0';
SvCUR_set(sv, size);
SvPOK_on(sv);
if (tainted) {
SvTAINTED_on(sv);
}
else {
SvTAINTED_off(sv);
}
return newRV_noinc(sv);
}
lucy_HitDoc*
lucy_DefDocReader_fetch_doc(lucy_DefaultDocReader *self, int32_t doc_id) {
lucy_Schema *const schema = self->schema;
lucy_InStream *const dat_in = self->dat_in;
lucy_InStream *const ix_in = self->ix_in;
HV *fields = newHV();
int64_t start;
uint32_t num_fields;
SV *field_name_sv = newSV(1);
// Get data file pointer from index, read number of fields.
Lucy_InStream_Seek(ix_in, (int64_t)doc_id * 8);
start = Lucy_InStream_Read_U64(ix_in);
Lucy_InStream_Seek(dat_in, start);
num_fields = Lucy_InStream_Read_C32(dat_in);
// Decode stored data and build up the doc field by field.
while (num_fields--) {
STRLEN field_name_len;
char *field_name_ptr;
SV *value_sv;
lucy_FieldType *type;
// Read field name.
field_name_len = Lucy_InStream_Read_C32(dat_in);
field_name_ptr = SvGROW(field_name_sv, field_name_len + 1);
Lucy_InStream_Read_Bytes(dat_in, field_name_ptr, field_name_len);
SvPOK_on(field_name_sv);
SvCUR_set(field_name_sv, field_name_len);
SvUTF8_on(field_name_sv);
*SvEND(field_name_sv) = '\0';
// Find the Field's FieldType.
lucy_ZombieCharBuf *field_name_zcb
= CFISH_ZCB_WRAP_STR(field_name_ptr, field_name_len);
Lucy_ZCB_Assign_Str(field_name_zcb, field_name_ptr, field_name_len);
type = Lucy_Schema_Fetch_Type(schema, (lucy_CharBuf*)field_name_zcb);
// Read the field value.
switch (Lucy_FType_Primitive_ID(type) & lucy_FType_PRIMITIVE_ID_MASK) {
case lucy_FType_TEXT: {
STRLEN value_len = Lucy_InStream_Read_C32(dat_in);
value_sv = newSV((value_len ? value_len : 1));
Lucy_InStream_Read_Bytes(dat_in, SvPVX(value_sv), value_len);
SvCUR_set(value_sv, value_len);
*SvEND(value_sv) = '\0';
SvPOK_on(value_sv);
SvUTF8_on(value_sv);
break;
}
case lucy_FType_BLOB: {
STRLEN value_len = Lucy_InStream_Read_C32(dat_in);
value_sv = newSV((value_len ? value_len : 1));
Lucy_InStream_Read_Bytes(dat_in, SvPVX(value_sv), value_len);
SvCUR_set(value_sv, value_len);
*SvEND(value_sv) = '\0';
SvPOK_on(value_sv);
break;
}
case lucy_FType_FLOAT32:
value_sv = newSVnv(Lucy_InStream_Read_F32(dat_in));
break;
case lucy_FType_FLOAT64:
value_sv = newSVnv(Lucy_InStream_Read_F64(dat_in));
break;
case lucy_FType_INT32:
value_sv = newSViv((int32_t)Lucy_InStream_Read_C32(dat_in));
break;
case lucy_FType_INT64:
if (sizeof(IV) == 8) {
int64_t val = (int64_t)Lucy_InStream_Read_C64(dat_in);
value_sv = newSViv((IV)val);
}
else { // (lossy)
int64_t val = (int64_t)Lucy_InStream_Read_C64(dat_in);
value_sv = newSVnv((double)val);
}
break;
default:
value_sv = NULL;
CFISH_THROW(LUCY_ERR, "Unrecognized type: %o", type);
}
// Store the value.
(void)hv_store_ent(fields, field_name_sv, value_sv, 0);
}
SvREFCNT_dec(field_name_sv);
lucy_HitDoc *retval = lucy_HitDoc_new(fields, doc_id, 0.0);
SvREFCNT_dec((SV*)fields);
return retval;
}
void
LUCY_RegexTokenizer_Tokenize_Utf8_IMP(lucy_RegexTokenizer *self,
const char *string, size_t string_len,
lucy_Inversion *inversion) {
dTHX;
lucy_RegexTokenizerIVARS *const ivars = lucy_RegexTokenizer_IVARS(self);
uint32_t num_code_points = 0;
SV *wrapper = sv_newmortal();
#if (PERL_VERSION > 10)
REGEXP *rx = (REGEXP*)ivars->token_re;
regexp *rx_struct = (regexp*)SvANY(rx);
#else
REGEXP *rx = (REGEXP*)ivars->token_re;
regexp *rx_struct = rx;
#endif
char *string_beg = (char*)string;
char *string_end = string_beg + string_len;
char *string_arg = string_beg;
// Fake up an SV wrapper to feed to the regex engine.
sv_upgrade(wrapper, SVt_PV);
SvREADONLY_on(wrapper);
SvLEN(wrapper) = 0;
SvUTF8_on(wrapper);
// Wrap the string in an SV to please the regex engine.
SvPVX(wrapper) = string_beg;
SvCUR_set(wrapper, string_len);
SvPOK_on(wrapper);
while (pregexec(rx, string_arg, string_end, string_arg, 1, wrapper, 1)) {
#if ((PERL_VERSION >= 10) || (PERL_VERSION == 9 && PERL_SUBVERSION >= 5))
char *const start_ptr = string_arg + rx_struct->offs[0].start;
char *const end_ptr = string_arg + rx_struct->offs[0].end;
#else
char *const start_ptr = string_arg + rx_struct->startp[0];
char *const end_ptr = string_arg + rx_struct->endp[0];
#endif
uint32_t start, end;
// Get start and end offsets in Unicode code points.
for (; string_arg < start_ptr; num_code_points++) {
string_arg += cfish_StrHelp_UTF8_COUNT[(uint8_t)(*string_arg)];
if (string_arg > string_end) {
THROW(CFISH_ERR, "scanned past end of '%s'", string_beg);
}
}
start = num_code_points;
for (; string_arg < end_ptr; num_code_points++) {
string_arg += cfish_StrHelp_UTF8_COUNT[(uint8_t)(*string_arg)];
if (string_arg > string_end) {
THROW(CFISH_ERR, "scanned past end of '%s'", string_beg);
}
}
end = num_code_points;
// Add a token to the new inversion.
LUCY_Inversion_Append(inversion,
lucy_Token_new(
start_ptr,
(end_ptr - start_ptr),
start,
end,
1.0f, // boost always 1 for now
1 // position increment
)
);
}
}
/*
=for apidoc mro_get_linear_isa_dfs
Returns the Depth-First Search linearization of @ISA
the given stash. The return value is a read-only AV*.
C<level> should be 0 (it is used internally in this
function's recursion).
You are responsible for C<SvREFCNT_inc()> on the
return value if you plan to store it anywhere
semi-permanently (otherwise it might be deleted
out from under you the next time the cache is
invalidated).
=cut
*/
static AV*
S_mro_get_linear_isa_dfs(pTHX_ HV *stash, U32 level)
{
AV* retval;
GV** gvp;
GV* gv;
AV* av;
const HEK* stashhek;
struct mro_meta* meta;
SV *our_name;
HV *stored;
PERL_ARGS_ASSERT_MRO_GET_LINEAR_ISA_DFS;
assert(HvAUX(stash));
stashhek = HvNAME_HEK(stash);
if (!stashhek)
Perl_croak(aTHX_ "Can't linearize anonymous symbol table");
if (level > 100)
Perl_croak(aTHX_ "Recursive inheritance detected in package '%s'",
HEK_KEY(stashhek));
meta = HvMROMETA(stash);
/* return cache if valid */
if((retval = MUTABLE_AV(MRO_GET_PRIVATE_DATA(meta, &dfs_alg)))) {
return retval;
}
/* not in cache, make a new one */
retval = MUTABLE_AV(sv_2mortal(MUTABLE_SV(newAV())));
/* We use this later in this function, but don't need a reference to it
beyond the end of this function, so reference count is fine. */
our_name = newSVhek(stashhek);
av_push(retval, our_name); /* add ourselves at the top */
/* fetch our @ISA */
gvp = (GV**)hv_fetchs(stash, "ISA", FALSE);
av = (gvp && (gv = *gvp) && isGV_with_GP(gv)) ? GvAV(gv) : NULL;
/* "stored" is used to keep track of all of the classnames we have added to
the MRO so far, so we can do a quick exists check and avoid adding
duplicate classnames to the MRO as we go.
It's then retained to be re-used as a fast lookup for ->isa(), by adding
our own name and "UNIVERSAL" to it. */
stored = MUTABLE_HV(sv_2mortal(MUTABLE_SV(newHV())));
if(av && AvFILLp(av) >= 0) {
SV **svp = AvARRAY(av);
I32 items = AvFILLp(av) + 1;
/* foreach(@ISA) */
while (items--) {
SV* const sv = *svp++;
HV* const basestash = gv_stashsv(sv, 0);
SV *const *subrv_p;
I32 subrv_items;
if (!basestash) {
/* if no stash exists for this @ISA member,
simply add it to the MRO and move on */
subrv_p = &sv;
subrv_items = 1;
}
else {
/* otherwise, recurse into ourselves for the MRO
of this @ISA member, and append their MRO to ours.
The recursive call could throw an exception, which
has memory management implications here, hence the use of
the mortal. */
const AV *const subrv
= mro_get_linear_isa_dfs(basestash, level + 1);
subrv_p = AvARRAY(subrv);
subrv_items = AvFILLp(subrv) + 1;
}
while(subrv_items--) {
SV *const subsv = *subrv_p++;
/* LVALUE fetch will create a new undefined SV if necessary
*/
HE *const he = hv_fetch_ent(stored, subsv, 1, 0);
assert(he);
if(HeVAL(he) != &PL_sv_undef) {
/* It was newly created. Steal it for our new SV, and
replace it in the hash with the "real" thing. */
SV *const val = HeVAL(he);
HEK *const key = HeKEY_hek(he);
HeVAL(he) = &PL_sv_undef;
/* Save copying by making a shared hash key scalar. We
inline this here rather than calling Perl_newSVpvn_share
because we already have the scalar, and we already have
the hash key. */
assert(SvTYPE(val) == SVt_NULL);
sv_upgrade(val, SVt_PV);
SvPV_set(val, HEK_KEY(share_hek_hek(key)));
SvCUR_set(val, HEK_LEN(key));
SvREADONLY_on(val);
SvFAKE_on(val);
SvPOK_on(val);
if (HEK_UTF8(key))
SvUTF8_on(val);
av_push(retval, val);
}
}
}
}
(void) hv_store_ent(stored, our_name, &PL_sv_undef, 0);
(void) hv_store(stored, "UNIVERSAL", 9, &PL_sv_undef, 0);
SvREFCNT_inc_simple_void_NN(stored);
SvTEMP_off(stored);
SvREADONLY_on(stored);
meta->isa = stored;
/* now that we're past the exception dangers, grab our own reference to
the AV we're about to use for the result. The reference owned by the
mortals' stack will be released soon, so everything will balance. */
SvREFCNT_inc_simple_void_NN(retval);
SvTEMP_off(retval);
/* we don't want anyone modifying the cache entry but us,
and we do so by replacing it completely */
SvREADONLY_on(retval);
return MUTABLE_AV(Perl_mro_set_private_data(aTHX_ meta, &dfs_alg,
MUTABLE_SV(retval)));
}
SV* P_newSVqv(pTHX_ const char* s, int i){
SV* m=newSVpv(s,strlen(s));
sv_setiv(m,i);
SvPOK_on(m);
return m;
}
SV* P_newSVqvn(pTHX_ const char* s, STRLEN len, int i){
SV* m=newSVpv(s,len);
sv_setiv(m,i);
SvPOK_on(m);
return m;
}
void P_sv_setqvn(pTHX_ SV* m, int i, const char* s, STRLEN len){
sv_setpvn(m,s,len);
SvIV_set(m,i);
SvPOK_on(m);
}