[p5sagit/p5-mst-13.2.git] / ext / Devel / Peek / Peek.xs

#define PERL_NO_GET_CONTEXT
#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"

SV *
DeadCode(pTHX)
{
#ifdef PURIFY
    return Nullsv;
#else
    SV* sva;
    SV* sv, *dbg;
    SV* ret = newRV_noinc((SV*)newAV());
    register SV* svend;
    int tm = 0, tref = 0, ts = 0, ta = 0, tas = 0;

    for (sva = PL_sv_arenaroot; sva; sva = (SV*)SvANY(sva)) {
	svend = &sva[SvREFCNT(sva)];
	for (sv = sva + 1; sv < svend; ++sv) {
	    if (SvTYPE(sv) == SVt_PVCV) {
		CV *cv = (CV*)sv;
		AV* padlist = CvPADLIST(cv), *argav;
		SV** svp;
		SV** pad;
		int i = 0, j, levelm, totm = 0, levelref, totref = 0;
		int levels, tots = 0, levela, tota = 0, levelas, totas = 0;
		int dumpit = 0;

		if (CvXSUB(sv)) {
		    continue;		/* XSUB */
		}
		if (!CvGV(sv)) {
		    continue;		/* file-level scope. */
		}
		if (!CvROOT(cv)) {
		    /* PerlIO_printf(Perl_debug_log, "  no root?!\n"); */
		    continue;		/* autoloading stub. */
		}
		do_gvgv_dump(0, Perl_debug_log, "GVGV::GV", CvGV(sv));
		if (CvDEPTH(cv)) {
		    PerlIO_printf(Perl_debug_log, "  busy\n");
		    continue;
		}
		svp = AvARRAY(padlist);
		while (++i <= AvFILL(padlist)) { /* Depth. */
		    SV **args;
		    
		    pad = AvARRAY((AV*)svp[i]);
		    argav = (AV*)pad[0];
		    if (!argav || (SV*)argav == &PL_sv_undef) {
			PerlIO_printf(Perl_debug_log, "    closure-template\n");
			continue;
		    }
		    args = AvARRAY(argav);
		    levelm = levels = levelref = levelas = 0;
		    levela = sizeof(SV*) * (AvMAX(argav) + 1);
		    if (AvREAL(argav)) {
			for (j = 0; j < AvFILL(argav); j++) {
			    if (SvROK(args[j])) {
				PerlIO_printf(Perl_debug_log, "     ref in args!\n");
				levelref++;
			    }
			    /* else if (SvPOK(args[j]) && SvPVX(args[j])) { */
			    else if (SvTYPE(args[j]) >= SVt_PV && SvLEN(args[j])) {
				levelas += SvLEN(args[j])/SvREFCNT(args[j]);
			    }
			}
		    }
		    for (j = 1; j < AvFILL((AV*)svp[1]); j++) {	/* Vars. */
			if (SvROK(pad[j])) {
			    levelref++;
			    do_sv_dump(0, Perl_debug_log, pad[j], 0, 4, 0, 0);
			    dumpit = 1;
			}
			/* else if (SvPOK(pad[j]) && SvPVX(pad[j])) { */
			else if (SvTYPE(pad[j]) >= SVt_PVAV) {
			    if (!SvPADMY(pad[j])) {
				levelref++;
				do_sv_dump(0, Perl_debug_log, pad[j], 0, 4, 0, 0);
				dumpit = 1;
			    }
			}
			else if (SvTYPE(pad[j]) >= SVt_PV && SvLEN(pad[j])) {
			    int db_len = SvLEN(pad[j]);
			    SV *db_sv = pad[j];
			    levels++;
			    levelm += SvLEN(pad[j])/SvREFCNT(pad[j]);
				/* Dump(pad[j],4); */
			}
		    }
		    PerlIO_printf(Perl_debug_log, "    level %i: refs: %i, strings: %i in %i,\targsarray: %i, argsstrings: %i\n", 
			    i, levelref, levelm, levels, levela, levelas);
		    totm += levelm;
		    tota += levela;
		    totas += levelas;
		    tots += levels;
		    totref += levelref;
		    if (dumpit)
			do_sv_dump(0, Perl_debug_log, (SV*)cv, 0, 2, 0, 0);
		}
		if (AvFILL(padlist) > 1) {
		    PerlIO_printf(Perl_debug_log, "  total: refs: %i, strings: %i in %i,\targsarrays: %i, argsstrings: %i\n", 
			    totref, totm, tots, tota, totas);
		}
		tref += totref;
		tm += totm;
		ts += tots;
		ta += tota;
		tas += totas;
	    }
	}
    }
    PerlIO_printf(Perl_debug_log, "total: refs: %i, strings: %i in %i\targsarray: %i, argsstrings: %i\n", tref, tm, ts, ta, tas);

    return ret;
#endif /* !PURIFY */
}

#if defined(PERL_DEBUGGING_MSTATS) || defined(DEBUGGING_MSTATS) \
	|| (defined(MYMALLOC) && !defined(PLAIN_MALLOC))
#   define mstat(str) dump_mstats(str)
#else
#   define mstat(str) \
	PerlIO_printf(Perl_debug_log, "%s: perl not compiled with DEBUGGING_MSTATS\n",str);
#endif

#define _CvGV(cv)					\
	(SvROK(cv) && (SvTYPE(SvRV(cv))==SVt_PVCV)	\
	 ? SvREFCNT_inc(CvGV((CV*)SvRV(cv))) : &PL_sv_undef)

MODULE = Devel::Peek		PACKAGE = Devel::Peek

void
mstat(str="Devel::Peek::mstat: ")
char *str

void
Dump(sv,lim=4)
SV *	sv
I32	lim
PPCODE:
{
    SV *pv_lim_sv = perl_get_sv("Devel::Peek::pv_limit", FALSE);
    STRLEN pv_lim = pv_lim_sv ? SvIV(pv_lim_sv) : 0;
    SV *dumpop = perl_get_sv("Devel::Peek::dump_ops", FALSE);
    I32 save_dumpindent = PL_dumpindent;
    PL_dumpindent = 2;
    do_sv_dump(0, Perl_debug_log, sv, 0, lim, dumpop && SvTRUE(dumpop), pv_lim);
    PL_dumpindent = save_dumpindent;
}

void
DumpArray(lim,...)
I32	lim
PPCODE:
{
    long i;
    SV *pv_lim_sv = perl_get_sv("Devel::Peek::pv_limit", FALSE);
    STRLEN pv_lim = pv_lim_sv ? SvIV(pv_lim_sv) : 0;
    SV *dumpop = perl_get_sv("Devel::Peek::dump_ops", FALSE);
    I32 save_dumpindent = PL_dumpindent;
    PL_dumpindent = 2;

    for (i=1; i<items; i++) {
	PerlIO_printf(Perl_debug_log, "Elt No. %ld  0x%"UVxf"\n", i - 1, PTR2UV(ST(i)));
	do_sv_dump(0, Perl_debug_log, ST(i), 0, lim, dumpop && SvTRUE(dumpop), pv_lim);
    }
    PL_dumpindent = save_dumpindent;
}

void
DumpProg()
PPCODE:
{
    warn("dumpindent is %d", PL_dumpindent);
    if (PL_main_root)
	op_dump(PL_main_root);
}

I32
SvREFCNT(sv)
SV *	sv

# PPCODE needed since otherwise sv_2mortal is inserted that will kill the value.

SV *
SvREFCNT_inc(sv)
SV *	sv
PPCODE:
{
    RETVAL = SvREFCNT_inc(sv);
    PUSHs(RETVAL);
}

# PPCODE needed since by default it is void

SV *
SvREFCNT_dec(sv)
SV *	sv
PPCODE:
{
    SvREFCNT_dec(sv);
    PUSHs(sv);
}

SV *
DeadCode()
CODE:
    RETVAL = DeadCode(aTHX);
OUTPUT:
    RETVAL

MODULE = Devel::Peek		PACKAGE = Devel::Peek	PREFIX = _

SV *
_CvGV(cv)
    SV *cv
Commit	Line	Data
c5be433b	1	#define PERL_NO_GET_CONTEXT
3967c732	2	#include "EXTERN.h"
	3	#include "perl.h"
	4	#include "XSUB.h"
	5
3967c732	6	SV *
cea2e8a9	7	DeadCode(pTHX)
3967c732	8	{
8ecf7187	9	#ifdef PURIFY
	10	return Nullsv;
	11	#else
3967c732	12	SV* sva;
	13	SV* sv, *dbg;
	14	SV* ret = newRV_noinc((SV*)newAV());
	15	register SV* svend;
	16	int tm = 0, tref = 0, ts = 0, ta = 0, tas = 0;
	17
	18	for (sva = PL_sv_arenaroot; sva; sva = (SV*)SvANY(sva)) {
	19	svend = &sva[SvREFCNT(sva)];
	20	for (sv = sva + 1; sv < svend; ++sv) {
	21	if (SvTYPE(sv) == SVt_PVCV) {
	22	CV cv = (CV)sv;
	23	AV* padlist = CvPADLIST(cv), *argav;
	24	SV** svp;
	25	SV** pad;
	26	int i = 0, j, levelm, totm = 0, levelref, totref = 0;
	27	int levels, tots = 0, levela, tota = 0, levelas, totas = 0;
	28	int dumpit = 0;
	29
	30	if (CvXSUB(sv)) {
	31	continue; /* XSUB */
	32	}
	33	if (!CvGV(sv)) {
	34	continue; /* file-level scope. */
	35	}
	36	if (!CvROOT(cv)) {
bf49b057	37	/* PerlIO_printf(Perl_debug_log, " no root?!\n"); */
3967c732	38	continue; /* autoloading stub. */
3967c732	39	}
bf49b057	40	do_gvgv_dump(0, Perl_debug_log, "GVGV::GV", CvGV(sv));
3967c732	41	if (CvDEPTH(cv)) {
bf49b057	42	PerlIO_printf(Perl_debug_log, " busy\n");
3967c732	43	continue;
	44	}
	45	svp = AvARRAY(padlist);
	46	while (++i <= AvFILL(padlist)) { /* Depth. */
	47	SV **args;
	48
	49	pad = AvARRAY((AV*)svp[i]);
	50	argav = (AV*)pad[0];
	51	if (!argav \|\| (SV*)argav == &PL_sv_undef) {
bf49b057	52	PerlIO_printf(Perl_debug_log, " closure-template\n");
3967c732	53	continue;
	54	}
	55	args = AvARRAY(argav);
	56	levelm = levels = levelref = levelas = 0;
	57	levela = sizeof(SV) (AvMAX(argav) + 1);
	58	if (AvREAL(argav)) {
	59	for (j = 0; j < AvFILL(argav); j++) {
	60	if (SvROK(args[j])) {
bf49b057	61	PerlIO_printf(Perl_debug_log, " ref in args!\n");
3967c732	62	levelref++;
	63	}
	64	/* else if (SvPOK(args[j]) && SvPVX(args[j])) { */
	65	else if (SvTYPE(args[j]) >= SVt_PV && SvLEN(args[j])) {
	66	levelas += SvLEN(args[j])/SvREFCNT(args[j]);
	67	}
	68	}
	69	}
	70	for (j = 1; j < AvFILL((AV)svp[1]); j++) { / Vars. */
	71	if (SvROK(pad[j])) {
	72	levelref++;
bf49b057	73	do_sv_dump(0, Perl_debug_log, pad[j], 0, 4, 0, 0);
3967c732	74	dumpit = 1;
	75	}
	76	/* else if (SvPOK(pad[j]) && SvPVX(pad[j])) { */
	77	else if (SvTYPE(pad[j]) >= SVt_PVAV) {
	78	if (!SvPADMY(pad[j])) {
	79	levelref++;
bf49b057	80	do_sv_dump(0, Perl_debug_log, pad[j], 0, 4, 0, 0);
3967c732	81	dumpit = 1;
	82	}
	83	}
	84	else if (SvTYPE(pad[j]) >= SVt_PV && SvLEN(pad[j])) {
	85	int db_len = SvLEN(pad[j]);
	86	SV *db_sv = pad[j];
	87	levels++;
	88	levelm += SvLEN(pad[j])/SvREFCNT(pad[j]);
	89	/* Dump(pad[j],4); */
	90	}
	91	}
bf49b057	92	PerlIO_printf(Perl_debug_log, " level %i: refs: %i, strings: %i in %i,\targsarray: %i, argsstrings: %i\n",
3967c732	93	i, levelref, levelm, levels, levela, levelas);
	94	totm += levelm;
	95	tota += levela;
	96	totas += levelas;
	97	tots += levels;
	98	totref += levelref;
	99	if (dumpit)
bf49b057	100	do_sv_dump(0, Perl_debug_log, (SV*)cv, 0, 2, 0, 0);
3967c732	101	}
3967c732	102	if (AvFILL(padlist) > 1) {
bf49b057	103	PerlIO_printf(Perl_debug_log, " total: refs: %i, strings: %i in %i,\targsarrays: %i, argsstrings: %i\n",
3967c732	104	totref, totm, tots, tota, totas);
	105	}
	106	tref += totref;
	107	tm += totm;
	108	ts += tots;
	109	ta += tota;
	110	tas += totas;
	111	}
	112	}
	113	}
bf49b057	114	PerlIO_printf(Perl_debug_log, "total: refs: %i, strings: %i in %i\targsarray: %i, argsstrings: %i\n", tref, tm, ts, ta, tas);
3967c732	115
3967c732	116	return ret;
3967c732	117	#endif /* !PURIFY */
8ecf7187	118	}
3967c732	119
df1e65fb	120	#if defined(PERL_DEBUGGING_MSTATS) \|\| defined(DEBUGGING_MSTATS) \
df1e65fb	121	\|\| (defined(MYMALLOC) && !defined(PLAIN_MALLOC))
3967c732	122	# define mstat(str) dump_mstats(str)
	123	#else
	124	# define mstat(str) \
bf49b057	125	PerlIO_printf(Perl_debug_log, "%s: perl not compiled with DEBUGGING_MSTATS\n",str);
3967c732	126	#endif
3967c732	127
83ee9e09	128	#define _CvGV(cv) \
83ee9e09	129	(SvROK(cv) && (SvTYPE(SvRV(cv))==SVt_PVCV) \
15bcf759	130	? SvREFCNT_inc(CvGV((CV*)SvRV(cv))) : &PL_sv_undef)
83ee9e09	131
3967c732	132	MODULE = Devel::Peek PACKAGE = Devel::Peek
	133
	134	void
	135	mstat(str="Devel::Peek::mstat: ")
	136	char *str
	137
	138	void
	139	Dump(sv,lim=4)
	140	SV * sv
	141	I32 lim
	142	PPCODE:
	143	{
	144	SV *pv_lim_sv = perl_get_sv("Devel::Peek::pv_limit", FALSE);
	145	STRLEN pv_lim = pv_lim_sv ? SvIV(pv_lim_sv) : 0;
	146	SV *dumpop = perl_get_sv("Devel::Peek::dump_ops", FALSE);
	147	I32 save_dumpindent = PL_dumpindent;
	148	PL_dumpindent = 2;
bf49b057	149	do_sv_dump(0, Perl_debug_log, sv, 0, lim, dumpop && SvTRUE(dumpop), pv_lim);
3967c732	150	PL_dumpindent = save_dumpindent;
	151	}
	152
	153	void
	154	DumpArray(lim,...)
	155	I32 lim
	156	PPCODE:
	157	{
	158	long i;
	159	SV *pv_lim_sv = perl_get_sv("Devel::Peek::pv_limit", FALSE);
	160	STRLEN pv_lim = pv_lim_sv ? SvIV(pv_lim_sv) : 0;
	161	SV *dumpop = perl_get_sv("Devel::Peek::dump_ops", FALSE);
	162	I32 save_dumpindent = PL_dumpindent;
	163	PL_dumpindent = 2;
	164
	165	for (i=1; i<items; i++) {
7b0972df	166	PerlIO_printf(Perl_debug_log, "Elt No. %ld 0x%"UVxf"\n", i - 1, PTR2UV(ST(i)));
bf49b057	167	do_sv_dump(0, Perl_debug_log, ST(i), 0, lim, dumpop && SvTRUE(dumpop), pv_lim);
3967c732	168	}
	169	PL_dumpindent = save_dumpindent;
	170	}
	171
	172	void
	173	DumpProg()
	174	PPCODE:
	175	{
	176	warn("dumpindent is %d", PL_dumpindent);
	177	if (PL_main_root)
	178	op_dump(PL_main_root);
	179	}
	180
	181	I32
	182	SvREFCNT(sv)
	183	SV * sv
	184
	185	# PPCODE needed since otherwise sv_2mortal is inserted that will kill the value.
	186
	187	SV *
	188	SvREFCNT_inc(sv)
	189	SV * sv
	190	PPCODE:
	191	{
	192	RETVAL = SvREFCNT_inc(sv);
	193	PUSHs(RETVAL);
	194	}
	195
	196	# PPCODE needed since by default it is void
	197
	198	SV *
	199	SvREFCNT_dec(sv)
	200	SV * sv
	201	PPCODE:
	202	{
	203	SvREFCNT_dec(sv);
	204	PUSHs(sv);
	205	}
	206
	207	SV *
	208	DeadCode()
cea2e8a9	209	CODE:
	210	RETVAL = DeadCode(aTHX);
	211	OUTPUT:
	212	RETVAL
83ee9e09	213
	214	MODULE = Devel::Peek PACKAGE = Devel::Peek PREFIX = _
	215
	216	SV *
	217	_CvGV(cv)
	218	SV *cv