typedef struct {
HV *map;
- AV *next_pkg;
- AV *next_name;
CV *placeholder;
#if SO_THREADSAFE
tTHX owner;
#endif /* SO_THREADSAFE */
+#define PTABLE_NAME ptable
+#define PTABLE_VAL_FREE(V) PerlMemShared_free(V)
+
+#include "ptable.h"
+
+/* PerlMemShared_free() needs the [ap]PTBLMS_? default values */
+#define ptable_store(T, K, V) ptable_store(aPTBLMS_ (T), (K), (V))
+
+STATIC ptable *so_op_name = NULL;
+
+#ifdef USE_ITHREADS
+STATIC perl_mutex so_op_name_mutex;
+#endif
+
+typedef struct {
+ STRLEN len;
+ char buf;
+} so_op_name_t;
+
/* --- Public API ---------------------------------------------------------- */
#include "sub_op.h"
-void sub_op_register(pTHX_ const sub_op_keyword *k) {
- SV *key = newSViv(PTR2IV(k->pp));
+void sub_op_init(sub_op_config_t *c) {
+ c->name = NULL;
+ c->namelen = 0;
+ c->pp = 0;
+ c->check = 0;
+ c->ud = NULL;
+
+ return;
+}
+
+void sub_op_register(pTHX_ const sub_op_config_t *c, U32 flags) {
+ SV *key = newSViv(PTR2IV(c->pp));
+
+ if (!(flags & SUB_OP_REGISTER_STEAL))
+ c = sub_op_dup(aTHX_ c);
if (!PL_custom_op_names)
PL_custom_op_names = newHV();
- (void) hv_store_ent(PL_custom_op_names, key, newSVpv(k->name, k->len), 0);
+ (void) hv_store_ent(PL_custom_op_names, key, newSVpv(c->name, c->namelen), 0);
if (!PL_custom_op_descs)
PL_custom_op_descs = newHV();
- (void) hv_store_ent(PL_custom_op_descs, key, newSVpv(k->name, k->len), 0);
+ (void) hv_store_ent(PL_custom_op_descs, key, newSVpv(c->name, c->namelen), 0);
- if (k->check) {
- SV *check = newSViv(PTR2IV(k->check));
- sv_magicext(key, check, PERL_MAGIC_ext, NULL, k->ud, 0);
- SvREFCNT_dec(check);
- }
+ SvREFCNT_dec(key);
{
dMY_CXT;
- (void) hv_store(MY_CXT.map, k->name, k->len, key, 0);
+ (void) hv_store(MY_CXT.map, c->name, c->namelen, newSViv(PTR2IV(c)), 0);
}
}
-/* --- Private helpers ----------------------------------------------------- */
+sub_op_config_t *sub_op_dup(pTHX_ const sub_op_config_t *orig) {
+ sub_op_config_t *dupe = PerlMemShared_malloc(sizeof *dupe);
+
+ dupe->namelen = orig->namelen;
+ dupe->name = PerlMemShared_malloc(dupe->namelen);
+ Copy(orig->name, dupe->name, dupe->namelen, char);
-#define SO_LINKLIST(O) ((O)->op_next ? (O)->op_next : sub_op_linklist(O))
-
-STATIC OP *sub_op_linklist(pTHX_ OP *o) {
-#define sub_op_linklist(O) sub_op_linklist(aTHX_ (O))
- OP *first;
-
- if (o->op_next)
- return o->op_next;
-
- /* establish postfix order */
- first = cUNOPo->op_first;
- if (first) {
- register OP *kid;
- o->op_next = SO_LINKLIST(first);
- kid = first;
- for (;;) {
- if (kid->op_sibling) {
- kid->op_next = SO_LINKLIST(kid->op_sibling);
- kid = kid->op_sibling;
- } else {
- kid->op_next = o;
- break;
- }
- }
- }
- else
- o->op_next = o;
-
- return o->op_next;
+ dupe->pp = orig->pp;
+ dupe->check = orig->check;
+ dupe->ud = orig->ud;
+
+ return dupe;
}
-STATIC IV sub_op_hint(pTHX) {
-#define sub_op_hint() sub_op_hint(aTHX)
+void sub_op_free(pTHX_ sub_op_config_t *c) {
+ PerlMemShared_free((char *) c->name);
+ PerlMemShared_free(c);
+
+ return;
+}
+
+/* --- Private helpers ----------------------------------------------------- */
+
+STATIC IV so_hint(pTHX) {
+#define so_hint() so_hint(aTHX)
SV *hint;
#if SO_HAS_PERL(5, 9, 5)
return (SvOK(hint) && SvIOK(hint)) ? SvIVX(hint) : 0;
}
-STATIC OP *(*sub_op_old_ck_entersub)(pTHX_ OP *) = 0;
-
-STATIC OP *sub_op_ck_entersub(pTHX_ OP *o) {
- o = CALL_FPTR(sub_op_old_ck_entersub)(aTHX_ o);
+STATIC OP *(*so_old_ck_entersub)(pTHX_ OP *) = 0;
- if (sub_op_hint()) {
- dMY_CXT;
- U32 hash = 0;
- SV *pkg, *name, *pp_sv;
+STATIC OP *so_ck_entersub(pTHX_ OP *o) {
+ o = CALL_FPTR(so_old_ck_entersub)(aTHX_ o);
- pkg = av_pop(MY_CXT.next_pkg);
- if (!SvOK(pkg))
- return o;
+ if (so_hint()) {
+ OP *ex_list, *rv2cv, *gvop, *last_arg = NULL;
+ GV *gv;
- name = av_pop(MY_CXT.next_name);
- if (!SvOK(name)) {
- SvREFCNT_dec(pkg);
- return o;
- }
+ if (o->op_type != OP_ENTERSUB)
+ goto skip;
+ if (o->op_private & OPpENTERSUB_AMPER) /* hopefully \&foo */
+ goto skip;
- {
- HV *stash = gv_stashsv(pkg, 0);
-
- if (stash) {
- HE *he = hv_fetch_ent(stash, name, 0, 0);
-
- if (he) {
- CV *cv;
- SV *gv = HeVAL(he);
- hash = HeHASH(he);
-
- if (gv && SvTYPE(gv) >= SVt_PVGV && (cv = GvCV(gv)) == MY_CXT.placeholder){
- SvREFCNT_dec(cv);
- GvCV(gv) = NULL;
- if (!GvSV(gv) && !GvAV(gv) && !GvHV(gv) && !GvIO(gv) && !GvFORM(gv))
- (void) hv_delete_ent(stash, name, G_DISCARD, hash);
- }
- }
- }
- }
+ ex_list = cUNOPo->op_first;
+ /* pushmark when a method call */
+ if (!ex_list || ex_list->op_type != OP_NULL)
+ goto skip;
- {
- HE *he = hv_fetch_ent(MY_CXT.map, name, 0, hash);
- if (!he)
- goto skip;
+ rv2cv = cUNOPx(ex_list)->op_first;
+ if (!rv2cv)
+ goto skip;
- pp_sv = HeVAL(he);
- if (!SvOK(pp_sv))
- goto skip;
+ while (1) {
+ OP *next = rv2cv->op_sibling;
+ if (!next)
+ break;
+ last_arg = rv2cv;
+ rv2cv = next;
}
- if (o->op_type != OP_ENTERSUB)
+ if (!(rv2cv->op_flags & OPf_KIDS))
goto skip;
- if (o->op_private & OPpENTERSUB_AMPER) /* hopefully \&foo */
+
+ gvop = cUNOPx(rv2cv)->op_first;
+ if (!gvop || gvop->op_type != OP_GV)
goto skip;
+ gv = cGVOPx_gv(gvop);
+
{
- OP *ex_list = cUNOPo->op_first;
- OP *rv2cv, *gvop;
- OP *last_arg = NULL;
+ SV **svp;
+ CV *cv = NULL;
+ const char *name = GvNAME(gv);
+ I32 len = GvNAMELEN(gv);
+ const sub_op_config_t *c;
+ dMY_CXT;
- /* pushmark when a method call */
- if (!ex_list || ex_list->op_type != OP_NULL)
+ svp = hv_fetch(MY_CXT.map, name, len, 0);
+ if (!svp)
goto skip;
- rv2cv = cUNOPx(ex_list)->op_first;
- if (!rv2cv)
- goto skip;
+ c = INT2PTR(const sub_op_config_t *, SvIVX(*svp));
- while (1) {
- OP *next = rv2cv->op_sibling;
- if (!next)
- break;
- last_arg = rv2cv;
- rv2cv = next;
+ if (gv && SvTYPE(gv) >= SVt_PVGV && (cv = GvCV(gv)) == MY_CXT.placeholder) {
+ SvREFCNT_dec(cv);
+ GvCV(gv) = NULL;
}
- if (!(rv2cv->op_flags & OPf_KIDS))
- goto skip;
+ o->op_type = OP_CUSTOM;
+ o->op_ppaddr = c->pp;
- gvop = cUNOPx(rv2cv)->op_first;
- if (!gvop || gvop->op_type != OP_GV)
- goto skip;
+ if (last_arg)
+ last_arg->op_sibling = NULL;
+
+ op_free(rv2cv);
+
+ if (c->check)
+ o = CALL_FPTR(c->check)(aTHX_ o, c->ud);
{
- GV *gv = cGVOPx_gv(gvop);
- STRLEN len;
- const char *s = SvPV_const(name, len);
-
- if (GvNAMELEN(gv) == len && strnEQ(GvNAME(gv), s, len)) {
- o->op_type = OP_CUSTOM;
- o->op_ppaddr = INT2PTR(Perl_ppaddr_t, SvIVX(pp_sv));
-
- if (last_arg)
- last_arg->op_sibling = NULL;
- op_free(rv2cv);
-
- {
- MAGIC *mg = mg_find(pp_sv, PERL_MAGIC_ext);
- if (mg) {
- sub_op_check_t check = INT2PTR(sub_op_check_t, SvIVX(mg->mg_obj));
- o = CALL_FPTR(check)(aTHX_ o, mg->mg_ptr);
- }
- }
-
- sub_op_linklist(o);
- }
+ so_op_name_t *on = PerlMemShared_malloc(sizeof(*on) + len);
+ Copy(name, &on->buf, len, char);
+ (&on->buf)[len] = '\0';
+ on->len = len;
+#ifdef USE_ITHREADS
+ MUTEX_LOCK(&so_op_name_mutex);
+#endif /* USE_ITHREADS */
+ ptable_store(so_op_name, o, on);
+#ifdef USE_ITHREADS
+ MUTEX_UNLOCK(&so_op_name_mutex);
+#endif /* USE_ITHREADS */
}
}
+ }
skip:
- SvREFCNT_dec(pkg);
- SvREFCNT_dec(name);
+ return o;
+}
+
+STATIC OP *(*so_old_ck_gelem)(pTHX_ OP *) = 0;
+
+STATIC OP *so_ck_gelem(pTHX_ OP *o) {
+ o = CALL_FPTR(so_old_ck_entersub)(aTHX_ o);
+
+ if (so_hint()) {
+ OP *rv2gv, *gvop;
+ GV *gv;
+
+ rv2gv = cUNOPo->op_first;
+ if (!rv2gv)
+ goto skip;
+
+ gvop = cUNOPx(rv2gv)->op_first;
+ if (!gvop || gvop->op_type != OP_GV)
+ goto skip;
+
+ gv = cGVOPx_gv(gvop);
+ if (!gv)
+ goto skip;
+
+ {
+ CV *cv;
+ dMY_CXT;
+
+ if (gv && SvTYPE(gv) >= SVt_PVGV && (cv = GvCV(gv)) == MY_CXT.placeholder) {
+ SvREFCNT_dec(cv);
+ GvCV(gv) = NULL;
+ }
+ }
}
+skip:
return o;
}
BOOT:
{
+ so_op_name = ptable_new();
+#ifdef USE_ITHREADS
+ MUTEX_INIT(&so_op_name_mutex);
+#endif
+
MY_CXT_INIT;
MY_CXT.map = newHV();
- MY_CXT.next_pkg = newAV();
- MY_CXT.next_name = newAV();
MY_CXT.placeholder = NULL;
#if SO_THREADSAFE
MY_CXT.owner = aTHX;
#endif /* SO_THREADSAFE */
- sub_op_old_ck_entersub = PL_check[OP_ENTERSUB];
- PL_check[OP_ENTERSUB] = sub_op_ck_entersub;
+ so_old_ck_entersub = PL_check[OP_ENTERSUB];
+ PL_check[OP_ENTERSUB] = so_ck_entersub;
+ so_old_ck_gelem = PL_check[OP_GELEM];
+ PL_check[OP_GELEM] = so_ck_gelem;
}
#if SO_THREADSAFE
HV *map;
CV *placeholder;
tTHX owner;
-CODE:
+PPCODE:
{
dMY_CXT;
owner = MY_CXT.owner;
{
MY_CXT_CLONE;
MY_CXT.map = map;
- MY_CXT.next_pkg = newAV();
- MY_CXT.next_name = newAV();
MY_CXT.placeholder = placeholder;
- MY_CXT.owner = aTHX;
+ MY_CXT.owner = aTHX;
}
+ XSRETURN(0);
#endif /* SO_THREADSAFE */
}
XSRETURN(0);
-void
-_incoming(SV *name, SV *pkg)
-PROTOTYPE: $$
-PPCODE:
- dMY_CXT;
- av_push(MY_CXT.next_pkg, SvREFCNT_inc(pkg));
- av_push(MY_CXT.next_name, SvREFCNT_inc(name));
- XSRETURN(0);
-
void
_custom_name(SV *op)
PROTOTYPE: $
PREINIT:
OP *o;
- SV *key;
- HE *he;
+ so_op_name_t *on;
PPCODE:
if (!SvROK(op))
XSRETURN_UNDEF;
o = INT2PTR(OP *, SvIV(SvRV(op)));
if (!o || o->op_type != OP_CUSTOM)
XSRETURN_UNDEF;
- key = newSViv(PTR2IV(o->op_ppaddr));
- he = hv_fetch_ent(PL_custom_op_names, key, 0, 0);
- SvREFCNT_dec(key);
- if (!he)
+#ifdef USE_ITHREADS
+ MUTEX_LOCK(&so_op_name_mutex);
+#endif /* USE_ITHREADS */
+ on = ptable_fetch(so_op_name, o);
+#ifdef USE_ITHREADS
+ MUTEX_UNLOCK(&so_op_name_mutex);
+#endif /* USE_ITHREADS */
+ if (!on)
+ XSRETURN_UNDEF;
+ ST(0) = sv_2mortal(newSVpvn(&on->buf, on->len));
+ XSRETURN(1);
+
+void
+_constant_sub(SV *sv)
+PROTOTYPE: $
+PPCODE:
+ if (!SvROK(sv))
+ XSRETURN_UNDEF;
+ sv = SvRV(sv);
+ if (SvTYPE(sv) < SVt_PVCV)
XSRETURN_UNDEF;
- ST(0) = sv_mortalcopy(HeVAL(he));
+ ST(0) = sv_2mortal(newSVuv(CvCONST(sv)));
XSRETURN(1);
projects / perl / modules / Sub-Op.git / blobdiff