+#define PERL_NO_GET_CONTEXT
+
#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"
#include "ppport.h"
+/* Not yet in ppport.h */
+#ifndef CvISXSUB
+# define CvISXSUB(cv) (CvXSUB(cv) ? TRUE : FALSE)
+#endif
+
#ifdef _MSC_VER
/* "structured exception" handling is a Microsoft extension to C and C++.
It's *not* C++ exception handling - C++ exception handling can't capture
# define __attribute__(x)
#endif
-static int regex_whine;
-static int fm_whine;
-static int dangle_whine = 0;
-
#if 0 && defined(DEBUGGING)
#define dbg_printf(x) printf x
#else
#define dbg_printf(x)
#endif
-#define TAG //printf( "# %s(%d)\n", __FILE__, __LINE__ )
+#define TAG /* printf( "# %s(%d)\n", __FILE__, __LINE__ ) */
#define carp puts
/* The idea is to have a tree structure to store 1 bit per possible pointer
#define LEAF_BITS (16 - BYTE_BITS)
#define LEAF_MASK 0x1FFF
-typedef void * TRACKING[256];
+struct state {
+ bool regex_whine;
+ bool fm_whine;
+ bool dangle_whine;
+ bool go_yell;
+ /* My hunch (not measured) is that for most architectures pointers will
+ start with 0 bits, hence the start of this array will be hot, and the
+ end unused. So put the flags next to the hot end. */
+ void *tracking[256];
+};
+
+typedef struct state TRACKING;
/*
Checks to see if thing is in the bitstring.
U8 **leaf_p;
U8 *leaf;
unsigned int i;
- void **tv_p = (void **) tv;
+ void **tv_p = (void **) (tv->tracking);
assert(tv);
if (NULL == p) return FALSE;
const char c = *(const char *)p;
}
CAUGHT_EXCEPTION {
- if( dangle_whine )
+ if (tv->dangle_whine)
warn( "Devel::Size: Encountered invalid pointer: %p\n", p );
return FALSE;
}
free_tracking(TRACKING *tv)
{
const int top_level = (sizeof(void *) * 8 - LEAF_BITS - BYTE_BITS) / 8;
- free_tracking_at((void **)tv, top_level);
+ free_tracking_at((void **)tv->tracking, top_level);
Safefree(tv);
}
-UV thing_size(const SV *const, TRACKING *);
+static UV thing_size(pTHX_ const SV *const, TRACKING *);
typedef enum {
OPc_NULL, /* 0 */
OPc_BASEOP, /* 1 */
#define NV double
#endif
-static int go_yell = 1;
-
/* Figure out how much magic is attached to the SV and return the
size */
IV magic_size(const SV * const thing, TRACKING *tv) {
total_size += sizeof(MGVTBL);
}
- /* Get the next in the chain */ // ?try
+ /* Get the next in the chain */
magic_pointer = magic_pointer->mg_moremagic;
}
CAUGHT_EXCEPTION {
- if( dangle_whine )
+ if (tv->dangle_whine)
warn( "Devel::Size: Encountered bad magic at: %p\n", magic_pointer );
}
}
total_size += sizeof(I32) * SvANY(baseregex)->nparens * 2;
/*total_size += strlen(SvANY(baseregex)->subbeg);*/
#endif
- if (go_yell && !regex_whine) {
+ if (tv->go_yell && !tv->regex_whine) {
carp("Devel::Size: Calculated sizes for compiled regexes are incompatible, and probably always will be");
- regex_whine = 1;
+ tv->regex_whine = 1;
}
return total_size;
}
-UV op_size(const OP * const baseop, TRACKING *tv) {
+static UV
+op_size(pTHX_ const OP * const baseop, TRACKING *tv) {
UV total_size = 0;
TRY_TO_CATCH_SEGV {
TAG;
if (check_new(tv, baseop->op_next)) {
- total_size += op_size(baseop->op_next, tv);
+ total_size += op_size(aTHX_ baseop->op_next, tv);
}
TAG;
switch (cc_opclass(baseop)) {
case OPc_UNOP: TAG;
total_size += sizeof(struct unop);
if (check_new(tv, cUNOPx(baseop)->op_first)) {
- total_size += op_size(cUNOPx(baseop)->op_first, tv);
+ total_size += op_size(aTHX_ cUNOPx(baseop)->op_first, tv);
}
TAG;break;
case OPc_BINOP: TAG;
total_size += sizeof(struct binop);
if (check_new(tv, cBINOPx(baseop)->op_first)) {
- total_size += op_size(cBINOPx(baseop)->op_first, tv);
+ total_size += op_size(aTHX_ cBINOPx(baseop)->op_first, tv);
}
if (check_new(tv, cBINOPx(baseop)->op_last)) {
- total_size += op_size(cBINOPx(baseop)->op_last, tv);
+ total_size += op_size(aTHX_ cBINOPx(baseop)->op_last, tv);
}
TAG;break;
case OPc_LOGOP: TAG;
total_size += sizeof(struct logop);
if (check_new(tv, cLOGOPx(baseop)->op_first)) {
- total_size += op_size(cBINOPx(baseop)->op_first, tv);
+ total_size += op_size(aTHX_ cBINOPx(baseop)->op_first, tv);
}
if (check_new(tv, cLOGOPx(baseop)->op_other)) {
- total_size += op_size(cLOGOPx(baseop)->op_other, tv);
+ total_size += op_size(aTHX_ cLOGOPx(baseop)->op_other, tv);
}
TAG;break;
case OPc_LISTOP: TAG;
total_size += sizeof(struct listop);
if (check_new(tv, cLISTOPx(baseop)->op_first)) {
- total_size += op_size(cLISTOPx(baseop)->op_first, tv);
+ total_size += op_size(aTHX_ cLISTOPx(baseop)->op_first, tv);
}
if (check_new(tv, cLISTOPx(baseop)->op_last)) {
- total_size += op_size(cLISTOPx(baseop)->op_last, tv);
+ total_size += op_size(aTHX_ cLISTOPx(baseop)->op_last, tv);
}
TAG;break;
case OPc_PMOP: TAG;
total_size += sizeof(struct pmop);
if (check_new(tv, cPMOPx(baseop)->op_first)) {
- total_size += op_size(cPMOPx(baseop)->op_first, tv);
+ total_size += op_size(aTHX_ cPMOPx(baseop)->op_first, tv);
}
if (check_new(tv, cPMOPx(baseop)->op_last)) {
- total_size += op_size(cPMOPx(baseop)->op_last, tv);
+ total_size += op_size(aTHX_ cPMOPx(baseop)->op_last, tv);
}
#if PERL_VERSION < 9 || (PERL_VERSION == 9 && PERL_SUBVERSION < 5)
if (check_new(tv, cPMOPx(baseop)->op_pmreplroot)) {
- total_size += op_size(cPMOPx(baseop)->op_pmreplroot, tv);
+ total_size += op_size(aTHX_ cPMOPx(baseop)->op_pmreplroot, tv);
}
if (check_new(tv, cPMOPx(baseop)->op_pmreplstart)) {
- total_size += op_size(cPMOPx(baseop)->op_pmreplstart, tv);
+ total_size += op_size(aTHX_ cPMOPx(baseop)->op_pmreplstart, tv);
}
if (check_new(tv, cPMOPx(baseop)->op_pmnext)) {
- total_size += op_size((OP *)cPMOPx(baseop)->op_pmnext, tv);
+ total_size += op_size(aTHX_ (OP *)cPMOPx(baseop)->op_pmnext, tv);
}
#endif
/* This is defined away in perl 5.8.x, but it is in there for
case OPc_SVOP: TAG;
total_size += sizeof(struct pmop);
if (check_new(tv, cSVOPx(baseop)->op_sv)) {
- total_size += thing_size(cSVOPx(baseop)->op_sv, tv);
+ total_size += thing_size(aTHX_ cSVOPx(baseop)->op_sv, tv);
}
TAG;break;
case OPc_PADOP: TAG;
case OPc_LOOP: TAG;
total_size += sizeof(struct loop);
if (check_new(tv, cLOOPx(baseop)->op_first)) {
- total_size += op_size(cLOOPx(baseop)->op_first, tv);
+ total_size += op_size(aTHX_ cLOOPx(baseop)->op_first, tv);
}
if (check_new(tv, cLOOPx(baseop)->op_last)) {
- total_size += op_size(cLOOPx(baseop)->op_last, tv);
+ total_size += op_size(aTHX_ cLOOPx(baseop)->op_last, tv);
}
if (check_new(tv, cLOOPx(baseop)->op_redoop)) {
- total_size += op_size(cLOOPx(baseop)->op_redoop, tv);
+ total_size += op_size(aTHX_ cLOOPx(baseop)->op_redoop, tv);
}
if (check_new(tv, cLOOPx(baseop)->op_nextop)) {
- total_size += op_size(cLOOPx(baseop)->op_nextop, tv);
+ total_size += op_size(aTHX_ cLOOPx(baseop)->op_nextop, tv);
}
if (check_new(tv, cLOOPx(baseop)->op_lastop)) {
- total_size += op_size(cLOOPx(baseop)->op_lastop, tv);
+ total_size += op_size(aTHX_ cLOOPx(baseop)->op_lastop, tv);
}
TAG;break;
}
#else
if (check_new(tv, basecop->cop_stash)) {
- total_size += thing_size((SV *)basecop->cop_stash, tv);
+ total_size += thing_size(aTHX_ (SV *)basecop->cop_stash, tv);
}
if (check_new(tv, basecop->cop_filegv)) {
- total_size += thing_size((SV *)basecop->cop_filegv, tv);
+ total_size += thing_size(aTHX_ (SV *)basecop->cop_filegv, tv);
}
#endif
}
}
CAUGHT_EXCEPTION {
- if( dangle_whine )
+ if (tv->dangle_whine)
warn( "Devel::Size: Encountered dangling pointer in opcode at: %p\n", baseop );
}
return total_size;
# define NEW_HEAD_LAYOUT
#endif
-UV thing_size(const SV * const orig_thing, TRACKING *tv) {
+static UV
+thing_size(pTHX_ const SV * const orig_thing, TRACKING *tv) {
const SV *thing = orig_thing;
UV total_size = sizeof(SV);
case SVt_PV: TAG;
total_size += sizeof(XPV);
#if (PERL_VERSION < 11)
- total_size += SvROK(thing) ? thing_size( SvRV(thing), tv) : SvLEN(thing);
+ total_size += SvROK(thing) ? thing_size(aTHX_ SvRV(thing), tv) : SvLEN(thing);
#else
total_size += SvLEN(thing);
#endif
case SVt_PVIV: TAG;
total_size += sizeof(XPVIV);
#if (PERL_VERSION < 11)
- total_size += SvROK(thing) ? thing_size( SvRV(thing), tv) : SvLEN(thing);
+ total_size += SvROK(thing) ? thing_size(aTHX_ SvRV(thing), tv) : SvLEN(thing);
#else
total_size += SvLEN(thing);
#endif
case SVt_PVNV: TAG;
total_size += sizeof(XPVNV);
#if (PERL_VERSION < 11)
- total_size += SvROK(thing) ? thing_size( SvRV(thing), tv) : SvLEN(thing);
+ total_size += SvROK(thing) ? thing_size(aTHX_ SvRV(thing), tv) : SvLEN(thing);
#else
total_size += SvLEN(thing);
#endif
case SVt_PVMG: TAG;
total_size += sizeof(XPVMG);
#if (PERL_VERSION < 11)
- total_size += SvROK(thing) ? thing_size( SvRV(thing), tv) : SvLEN(thing);
+ total_size += SvROK(thing) ? thing_size(aTHX_ SvRV(thing), tv) : SvLEN(thing);
#else
total_size += SvLEN(thing);
#endif
case SVt_PVBM: TAG;
total_size += sizeof(XPVBM);
#if (PERL_VERSION < 11)
- total_size += SvROK(thing) ? thing_size( SvRV(thing), tv) : SvLEN(thing);
+ total_size += SvROK(thing) ? thing_size(aTHX_ SvRV(thing), tv) : SvLEN(thing);
#else
total_size += SvLEN(thing);
#endif
case SVt_PVLV: TAG;
total_size += sizeof(XPVLV);
#if (PERL_VERSION < 11)
- total_size += SvROK(thing) ? thing_size( SvRV(thing), tv) : SvLEN(thing);
+ total_size += SvROK(thing) ? thing_size(aTHX_ SvRV(thing), tv) : SvLEN(thing);
#else
total_size += SvLEN(thing);
#endif
complain about AvARYLEN() passing thing to it. */
if (AvARYLEN(thing)) {
if (check_new(tv, AvARYLEN(thing))) {
- total_size += thing_size(AvARYLEN(thing), tv);
+ total_size += thing_size(aTHX_ AvARYLEN(thing), tv);
}
}
#endif
total_size += ((XPVIO *) SvANY(thing))->xpv_len;
if (check_new(tv, CvSTASH(thing))) {
- total_size += thing_size((SV *)CvSTASH(thing), tv);
+ total_size += thing_size(aTHX_ (SV *)CvSTASH(thing), tv);
}
if (check_new(tv, SvSTASH(thing))) {
- total_size += thing_size( (SV *)SvSTASH(thing), tv);
+ total_size += thing_size(aTHX_ (SV *)SvSTASH(thing), tv);
}
if (check_new(tv, CvGV(thing))) {
- total_size += thing_size((SV *)CvGV(thing), tv);
+ total_size += thing_size(aTHX_ (SV *)CvGV(thing), tv);
}
if (check_new(tv, CvPADLIST(thing))) {
- total_size += thing_size((SV *)CvPADLIST(thing), tv);
+ total_size += thing_size(aTHX_ (SV *)CvPADLIST(thing), tv);
}
if (check_new(tv, CvOUTSIDE(thing))) {
- total_size += thing_size((SV *)CvOUTSIDE(thing), tv);
- }
- if (check_new(tv, CvSTART(thing))) {
- total_size += op_size(CvSTART(thing), tv);
+ total_size += thing_size(aTHX_ (SV *)CvOUTSIDE(thing), tv);
}
- if (check_new(tv, CvROOT(thing))) {
- total_size += op_size(CvROOT(thing), tv);
+ if (CvISXSUB(thing)) {
+ SV *sv = cv_const_sv((CV *)thing);
+ if (sv) {
+ total_size += thing_size(aTHX_ sv, tv);
+ }
+ } else {
+ if (check_new(tv, CvSTART(thing))) {
+ total_size += op_size(aTHX_ CvSTART(thing), tv);
+ }
+ if (check_new(tv, CvROOT(thing))) {
+ total_size += op_size(aTHX_ CvROOT(thing), tv);
+ }
}
TAG;break;
{
SV *generic_thing;
if ((generic_thing = (SV *)(GvGP(thing)->gp_sv))) {
- total_size += thing_size(generic_thing, tv);
+ total_size += thing_size(aTHX_ generic_thing, tv);
}
if ((generic_thing = (SV *)(GvGP(thing)->gp_form))) {
- total_size += thing_size(generic_thing, tv);
+ total_size += thing_size(aTHX_ generic_thing, tv);
}
if ((generic_thing = (SV *)(GvGP(thing)->gp_av))) {
- total_size += thing_size(generic_thing, tv);
+ total_size += thing_size(aTHX_ generic_thing, tv);
}
if ((generic_thing = (SV *)(GvGP(thing)->gp_hv))) {
- total_size += thing_size(generic_thing, tv);
+ total_size += thing_size(aTHX_ generic_thing, tv);
}
if ((generic_thing = (SV *)(GvGP(thing)->gp_egv))) {
- total_size += thing_size(generic_thing, tv);
+ total_size += thing_size(aTHX_ generic_thing, tv);
}
if ((generic_thing = (SV *)(GvGP(thing)->gp_cv))) {
- total_size += thing_size(generic_thing, tv);
+ total_size += thing_size(aTHX_ generic_thing, tv);
}
}
}
total_size += magic_size(thing, tv);
total_size += ((XPVIO *) SvANY(thing))->xpv_len;
if (check_new(tv, CvPADLIST(thing))) {
- total_size += thing_size((SV *)CvPADLIST(thing), tv);
+ total_size += thing_size(aTHX_ (SV *)CvPADLIST(thing), tv);
}
if (check_new(tv, CvOUTSIDE(thing))) {
- total_size += thing_size((SV *)CvOUTSIDE(thing), tv);
+ total_size += thing_size(aTHX_ (SV *)CvOUTSIDE(thing), tv);
}
- if (go_yell && !fm_whine) {
+ if (tv->go_yell && !tv->fm_whine) {
carp("Devel::Size: Calculated sizes for FMs are incomplete");
- fm_whine = 1;
+ tv->fm_whine = 1;
}
TAG;break;
case SVt_PVIO: TAG;
}
/* Throw the GVs on the list to be walked if they're not-null */
if (((XPVIO *) SvANY(thing))->xio_top_gv) {
- total_size += thing_size((SV *)((XPVIO *) SvANY(thing))->xio_top_gv,
+ total_size += thing_size(aTHX_ (SV *)((XPVIO *) SvANY(thing))->xio_top_gv,
tv);
}
if (((XPVIO *) SvANY(thing))->xio_bottom_gv) {
- total_size += thing_size((SV *)((XPVIO *) SvANY(thing))->xio_bottom_gv,
+ total_size += thing_size(aTHX_ (SV *)((XPVIO *) SvANY(thing))->xio_bottom_gv,
tv);
}
if (((XPVIO *) SvANY(thing))->xio_fmt_gv) {
- total_size += thing_size((SV *)((XPVIO *) SvANY(thing))->xio_fmt_gv,
+ total_size += thing_size(aTHX_ (SV *)((XPVIO *) SvANY(thing))->xio_fmt_gv,
tv);
}
return total_size;
}
+static TRACKING *
+new_tracking(pTHX)
+{
+ SV *warn_flag;
+ TRACKING *tv;
+ Newxz(tv, 1, TRACKING);
+ tv->go_yell = TRUE;
+ if (NULL != (warn_flag = perl_get_sv("Devel::Size::warn", FALSE))) {
+ tv->dangle_whine = tv->go_yell = SvIV(warn_flag) ? TRUE : FALSE;
+ }
+ if (NULL != (warn_flag = perl_get_sv("Devel::Size::dangle", FALSE))) {
+ tv->dangle_whine = SvIV(warn_flag) ? TRUE : FALSE;
+ }
+ return tv;
+}
+
MODULE = Devel::Size PACKAGE = Devel::Size
PROTOTYPES: DISABLE
CODE:
{
SV *thing = orig_thing;
- /* Hash to track our seen pointers */
- //HV *tracking_hash = newHV();
- SV *warn_flag;
- TRACKING *tv;
- Newz( 0xfc0ff, tv, 1, TRACKING );
-
- /* Check warning status */
- go_yell = 0;
- regex_whine = 0;
- fm_whine = 0;
-
- if (NULL != (warn_flag = perl_get_sv("Devel::Size::warn", FALSE))) {
- dangle_whine = go_yell = SvIV(warn_flag);
- }
- if (NULL != (warn_flag = perl_get_sv("Devel::Size::dangle", FALSE))) {
- dangle_whine = SvIV(warn_flag);
- }
+ TRACKING *tv = new_tracking(aTHX);
/* If they passed us a reference then dereference it. This is the
only way we can check the sizes of arrays and hashes */
}
#endif
- RETVAL = thing_size(thing, tv);
+ RETVAL = thing_size(aTHX_ thing, tv);
free_tracking(tv);
}
OUTPUT:
CODE:
{
SV *thing = orig_thing;
- /* Hash to track our seen pointers */
- //HV *tracking_hash;
- TRACKING *tv;
/* Array with things we still need to do */
AV *pending_array;
IV size = 0;
- SV *warn_flag;
+ TRACKING *tv = new_tracking(aTHX);
/* Size starts at zero */
RETVAL = 0;
- /* Check warning status */
- go_yell = 0;
- regex_whine = 0;
- fm_whine = 0;
-
- if (NULL != (warn_flag = perl_get_sv("Devel::Size::warn", FALSE))) {
- dangle_whine = go_yell = SvIV(warn_flag);
- }
- if (NULL != (warn_flag = perl_get_sv("Devel::Size::dangle", FALSE))) {
- dangle_whine = SvIV(warn_flag);
- }
-
- /* init these after the go_yell above */
- //tracking_hash = newHV();
- Newz( 0xfc0ff, tv, 1, TRACKING );
pending_array = newAV();
/* We cannot push HV/AV directly, only the RV. So deref it
the miscalculation.
This is the only way we can check the sizes of arrays and hashes. */
if (SvROK(thing)) {
- RETVAL -= thing_size(thing, NULL);
+ RETVAL -= thing_size(aTHX_ thing, NULL);
}
/* Put it on the pending array */
}
}
- size = thing_size(thing, tv);
+ size = thing_size(aTHX_ thing, tv);
RETVAL += size;
} else {
/* check_new() returned false: */