+/* -*- mode: C -*- */
+
+#undef NDEBUG /* XXX */
+#include <assert.h>
+
+#define PERL_NO_GET_CONTEXT
+
#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"
#ifndef CvISXSUB
# define CvISXSUB(cv) (CvXSUB(cv) ? TRUE : FALSE)
#endif
+#ifndef SvRV_const
+# define SvRV_const(rv) SvRV(rv)
+#endif
+#ifndef SvOOK_offset
+# define SvOOK_offset(sv, len) STMT_START { len = SvIVX(sv); } STMT_END
+#endif
+#ifndef SvIsCOW
+# define SvIsCOW(sv) ((SvFLAGS(sv) & (SVf_FAKE | SVf_READONLY)) == \
+ (SVf_FAKE | SVf_READONLY))
+#endif
+#ifndef SvIsCOW_shared_hash
+# define SvIsCOW_shared_hash(sv) (SvIsCOW(sv) && SvLEN(sv) == 0)
+#endif
+#ifndef SvSHARED_HEK_FROM_PV
+# define SvSHARED_HEK_FROM_PV(pvx) \
+ ((struct hek*)(pvx - STRUCT_OFFSET(struct hek, hek_key)))
+#endif
+
+#if PERL_VERSION < 6
+# define PL_opargs opargs
+# define PL_op_name op_name
+#endif
#ifdef _MSC_VER
/* "structured exception" handling is a Microsoft extension to C and C++.
functionality on other platforms. */
# include <excpt.h>
# define TRY_TO_CATCH_SEGV __try
-# define CAUGHT_EXCEPTION __except(EXCEPTION EXCEPTION_EXECUTE_HANDLER)
+# define CAUGHT_EXCEPTION __except(EXCEPTION_EXECUTE_HANDLER)
#else
# define TRY_TO_CATCH_SEGV if(1)
# define CAUGHT_EXCEPTION else
# 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
without excessive memory needs. The assumption is that your CPU cache
works :-) (And that we're not going to bust it) */
-#define ALIGN_BITS ( sizeof(void*) >> 1 )
#define BYTE_BITS 3
#define LEAF_BITS (16 - BYTE_BITS)
#define LEAF_MASK 0x1FFF
-typedef void * TRACKING[256];
+typedef struct npath_node_st npath_node_t;
+struct npath_node_st {
+ npath_node_t *prev;
+ const void *id;
+ U8 type;
+ U8 flags;
+ UV seqn;
+ U16 depth;
+};
+
+struct state {
+ UV total_size;
+ 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];
+ int min_recurse_threshold;
+ /* callback hooks and data */
+ int (*add_attr_cb)(struct state *st, npath_node_t *npath_node, UV attr_type, const char *name, UV value);
+ void (*free_state_cb)(pTHX_ struct state *st);
+ UV seqn;
+ void *state_cb_data; /* free'd by free_state() after free_state_cb() call */
+ /* this stuff wil be moved to state_cb_data later */
+ FILE *node_stream_fh;
+ char *node_stream_name;
+};
+
+#define ADD_SIZE(st, leafname, bytes) (NPathAddSizeCb(st, leafname, bytes) (st)->total_size += (bytes))
+
+#define PATH_TRACKING
+#ifdef PATH_TRACKING
+
+#define pPATH npath_node_t *NPathArg
+
+/* A subtle point here is that dNPathNodes and NPathPushNode leave NP pointing
+ * to the next unused slot (though with prev already filled in)
+ * whereas NPathLink leaves NP unchanged, it just fills in the slot NP points
+ * to and passes that NP value to the function being called.
+ * seqn==0 indicates the node is new (hasn't been output yet)
+ */
+#define dNPathNodes(nodes, prev_np) \
+ npath_node_t name_path_nodes[nodes+1]; /* +1 for NPathLink */ \
+ npath_node_t *NP = &name_path_nodes[0]; \
+ NP->seqn = NP->type = 0; NP->id = Nullch; /* safety/debug */ \
+ NP->prev = prev_np
+#define NPathPushNode(nodeid, nodetype) \
+ NP->id = nodeid; \
+ NP->type = nodetype; \
+ NP->seqn = 0; \
+ if(0)fprintf(stderr,"NPathPushNode (%p <-) %p <- [%d %s]\n", NP->prev, NP, nodetype,(char*)nodeid);\
+ NP++; \
+ NP->id = Nullch; /* safety/debug */ \
+ NP->seqn = 0; \
+ NP->prev = (NP-1)
+#define NPathSetNode(nodeid, nodetype) \
+ (NP-1)->id = nodeid; \
+ (NP-1)->type = nodetype; \
+ if(0)fprintf(stderr,"NPathSetNode (%p <-) %p <- [%d %s]\n", (NP-1)->prev, (NP-1), nodetype,(char*)nodeid);\
+ (NP-1)->seqn = 0;
+#define NPathPopNode \
+ --NP
+
+/* dNPathUseParent points NP directly the the parents' name_path_nodes array
+ * So the function can only safely call ADD_*() but not NPathLink, unless the
+ * caller has spare nodes in its name_path_nodes.
+ */
+#define dNPathUseParent(prev_np) npath_node_t *NP = (((prev_np+1)->prev = prev_np), prev_np+1)
+
+#define NPtype_NAME 0x01
+#define NPtype_LINK 0x02
+#define NPtype_SV 0x03
+#define NPtype_MAGIC 0x04
+#define NPtype_OP 0x05
+
+#define NPattr_LEAFSIZE 0x00
+#define NPattr_NAME 0x01
+#define NPattr_PADFAKE 0x02
+#define NPattr_PADNAME 0x03
+#define NPattr_PADTMP 0x04
+#define NPattr_NOTE 0x05
+
+#define _NPathLink(np, nid, ntype) (((np)->id=nid), ((np)->type=ntype), ((np)->seqn=0))
+#define NPathLink(nid) (_NPathLink(NP, nid, NPtype_LINK), NP)
+/* add a link and a name node to the path - a special case for op_size */
+#define NPathLinkAndNode(nid, nid2) (_NPathLink(NP, nid, NPtype_LINK), _NPathLink(NP+1, nid2, NPtype_NAME), ((NP+1)->prev=NP), (NP+1))
+#define NPathOpLink (NPathArg)
+#define NPathAddSizeCb(st, name, bytes) (st->add_attr_cb && st->add_attr_cb(st, NP-1, NPattr_LEAFSIZE, (name), (bytes))),
+#define ADD_ATTR(st, attr_type, attr_name, attr_value) (st->add_attr_cb && st->add_attr_cb(st, NP-1, attr_type, attr_name, attr_value))
+
+#else
+
+#define NPathAddSizeCb(st, name, bytes)
+#define pPATH void *npath_dummy /* XXX ideally remove */
+#define dNPathNodes(nodes, prev_np) dNOOP
+#define NPathLink(nodeid, nodetype) NULL
+#define NPathOpLink NULL
+#define ADD_ATTR(st, attr_type, attr_name, attr_value) NOOP
+
+#endif /* PATH_TRACKING */
+
+
+
+
+#ifdef PATH_TRACKING
+
+static const char *svtypenames[SVt_LAST] = {
+#if PERL_VERSION < 9
+ "NULL", "IV", "NV", "RV", "PV", "PVIV", "PVNV", "PVMG", "PVBM", "PVLV", "PVAV", "PVHV", "PVCV", "PVGV", "PVFM", "PVIO",
+#elif PERL_VERSION == 10 && PERL_SUBVERSION == 0
+ "NULL", "BIND", "IV", "NV", "RV", "PV", "PVIV", "PVNV", "PVMG", "PVGV", "PVLV", "PVAV", "PVHV", "PVCV", "PVFM", "PVIO",
+#elif PERL_VERSION == 10 && PERL_SUBVERSION == 1
+ "NULL", "BIND", "IV", "NV", "RV", "PV", "PVIV", "PVNV", "PVMG", "PVGV", "PVLV", "PVAV", "PVHV", "PVCV", "PVFM", "PVIO",
+#elif PERL_VERSION < 13
+ "NULL", "BIND", "IV", "NV", "PV", "PVIV", "PVNV", "PVMG", "REGEXP", "PVGV", "PVLV", "PVAV", "PVHV", "PVCV", "PVFM", "PVIO",
+#else
+ "NULL", "BIND", "IV", "NV", "PV", "PVIV", "PVNV", "PVMG", "REGEXP", "PVGV", "PVLV", "PVAV", "PVHV", "PVCV", "PVFM", "PVIO",
+#endif
+};
+
+int
+np_print_node_name(FILE *fp, npath_node_t *npath_node)
+{
+ char buf[1024]; /* XXX */
+
+ switch (npath_node->type) {
+ case NPtype_SV: { /* id is pointer to the SV sv_size was called on */
+ const SV *sv = (SV*)npath_node->id;
+ int type = SvTYPE(sv);
+ char *typename = (type == SVt_IV && SvROK(sv)) ? "RV" : svtypenames[type];
+ fprintf(fp, "SV(%s)", typename);
+ switch(type) { /* add some useful details */
+ case SVt_PVAV: fprintf(fp, " fill=%d/%ld", av_len((AV*)sv), AvMAX((AV*)sv)); break;
+ case SVt_PVHV: fprintf(fp, " fill=%ld/%ld", HvFILL((HV*)sv), HvMAX((HV*)sv)); break;
+ }
+ break;
+ }
+ case NPtype_OP: { /* id is pointer to the OP op_size was called on */
+ const OP *op = (OP*)npath_node->id;
+ fprintf(fp, "OP(%s)", OP_NAME(op));
+ break;
+ }
+ case NPtype_MAGIC: { /* id is pointer to the MAGIC struct */
+ MAGIC *magic_pointer = (MAGIC*)npath_node->id;
+ /* XXX it would be nice if we could reuse mg_names.c [sigh] */
+ fprintf(fp, "MAGIC(%c)", magic_pointer->mg_type ? magic_pointer->mg_type : '0');
+ break;
+ }
+ case NPtype_LINK:
+ fprintf(fp, "%s", npath_node->id);
+ break;
+ case NPtype_NAME:
+ fprintf(fp, "%s", npath_node->id);
+ break;
+ default: /* assume id is a string pointer */
+ fprintf(fp, "UNKNOWN(%d,%p)", npath_node->type, npath_node->id);
+ break;
+ }
+ return 0;
+}
+
+void
+np_dump_indent(int depth) {
+ while (depth-- > 0)
+ fprintf(stderr, ": ");
+}
+
+int
+np_walk_new_nodes(struct state *st,
+ npath_node_t *npath_node,
+ npath_node_t *npath_node_deeper,
+ int (*cb)(struct state *st, npath_node_t *npath_node, npath_node_t *npath_node_deeper))
+{
+ if (npath_node->seqn) /* node already output */
+ return 0;
+
+ if (npath_node->prev) {
+ np_walk_new_nodes(st, npath_node->prev, npath_node, cb); /* recurse */
+ npath_node->depth = npath_node->prev->depth + 1;
+ }
+ else npath_node->depth = 0;
+ npath_node->seqn = ++st->seqn;
+
+ if (cb) {
+ if (cb(st, npath_node, npath_node_deeper)) {
+ /* ignore this node */
+ assert(npath_node->prev);
+ assert(npath_node->depth);
+ assert(npath_node_deeper);
+ npath_node->depth--;
+ npath_node->seqn = --st->seqn;
+ npath_node_deeper->prev = npath_node->prev;
+ }
+ }
+
+ return 0;
+}
+
+int
+np_dump_formatted_node(struct state *st, npath_node_t *npath_node, npath_node_t *npath_node_deeper) {
+ if (0 && npath_node->type == NPtype_LINK)
+ return 1;
+ np_dump_indent(npath_node->depth);
+ np_print_node_name(stderr, npath_node);
+ if (npath_node->type == NPtype_LINK)
+ fprintf(stderr, "->"); /* cosmetic */
+ fprintf(stderr, "\t\t[#%ld @%u] ", npath_node->seqn, npath_node->depth);
+ fprintf(stderr, "\n");
+ return 0;
+}
+
+int
+np_dump_node_path_info(struct state *st, npath_node_t *npath_node, UV attr_type, const char *attr_name, UV attr_value)
+{
+ if (attr_type == NPattr_LEAFSIZE && !attr_value)
+ return 0; /* ignore zero sized leaf items */
+ np_walk_new_nodes(st, npath_node, NULL, np_dump_formatted_node);
+ np_dump_indent(npath_node->depth+1);
+ switch (attr_type) {
+ case NPattr_LEAFSIZE:
+ fprintf(stderr, "+%ld %s =%ld", attr_value, attr_name, attr_value+st->total_size);
+ break;
+ case NPattr_NAME:
+ fprintf(stderr, "~NAMED('%s') %lu", attr_name, attr_value);
+ break;
+ case NPattr_NOTE:
+ fprintf(stderr, "~note %s %lu", attr_name, attr_value);
+ break;
+ case NPattr_PADTMP:
+ case NPattr_PADNAME:
+ case NPattr_PADFAKE:
+ fprintf(stderr, "~pad%lu %s %lu", attr_type, attr_name, attr_value);
+ break;
+ default:
+ fprintf(stderr, "~??? %s %lu", attr_name, attr_value);
+ break;
+ }
+ fprintf(stderr, "\n");
+ return 0;
+}
+
+int
+np_stream_formatted_node(struct state *st, npath_node_t *npath_node, npath_node_t *npath_node_deeper) {
+ fprintf(st->node_stream_fh, "-%u %lu %u ",
+ npath_node->type, npath_node->seqn, (unsigned)npath_node->depth
+ );
+ np_print_node_name(st->node_stream_fh, npath_node);
+ fprintf(st->node_stream_fh, "\n");
+ return 0;
+}
+
+int
+np_stream_node_path_info(struct state *st, npath_node_t *npath_node, UV attr_type, const char *attr_name, UV attr_value)
+{
+ if (!attr_type && !attr_value)
+ return 0; /* ignore zero sized leaf items */
+ np_walk_new_nodes(st, npath_node, NULL, np_stream_formatted_node);
+ if (attr_type) { /* Attribute type, name and value */
+ fprintf(st->node_stream_fh, "%lu %lu ", attr_type, npath_node->seqn);
+ }
+ else { /* Leaf name and memory size */
+ fprintf(st->node_stream_fh, "L %lu ", npath_node->seqn);
+ }
+ fprintf(st->node_stream_fh, "%lu %s\n", attr_value, attr_name);
+ return 0;
+}
+
+
+#endif /* PATH_TRACKING */
+
/*
Checks to see if thing is in the bitstring.
notes thing in the segmented bitstring.
*/
static bool
-check_new(TRACKING *tv, const void *const p) {
+check_new(struct state *st, const void *const p) {
unsigned int bits = 8 * sizeof(void*);
const size_t raw_p = PTR2nat(p);
/* This effectively rotates the value right by the number of low always-0
(and hence hot in the cache) but we can still deal with any unaligned
pointers. */
const size_t cooked_p
- = (raw_p >> ALIGN_BITS) | (raw_p << (bits - BYTE_BITS));
+ = (raw_p >> ALIGN_BITS) | (raw_p << (bits - ALIGN_BITS));
const U8 this_bit = 1 << (cooked_p & 0x7);
U8 **leaf_p;
U8 *leaf;
unsigned int i;
- void **tv_p = (void **) tv;
+ void **tv_p = (void **) (st->tracking);
- assert(tv);
if (NULL == p) return FALSE;
TRY_TO_CATCH_SEGV {
const char c = *(const char *)p;
}
CAUGHT_EXCEPTION {
- if( dangle_whine )
+ if (st->dangle_whine)
warn( "Devel::Size: Encountered invalid pointer: %p\n", p );
return FALSE;
}
bits -= 8;
} while (bits > LEAF_BITS + BYTE_BITS);
/* bits now 16 always */
+#if !defined(MULTIPLICITY) || PERL_VERSION > 8 || (PERL_VERSION == 8 && PERL_SUBVERSION > 8)
+ /* 5.8.8 and early have an assert() macro that uses Perl_croak, hence needs
+ a my_perl under multiplicity */
assert(bits == 16);
+#endif
leaf_p = (U8 **)tv_p;
i = (unsigned int)((cooked_p >> bits) & 0xFF);
if (!leaf_p[i])
/* Nodes */
do {
if (tv[i]) {
- free_tracking_at(tv[i], level);
+ free_tracking_at((void **) tv[i], level);
Safefree(tv[i]);
}
} while (i--);
}
static void
-free_tracking(TRACKING *tv)
+free_state(struct state *st)
{
const int top_level = (sizeof(void *) * 8 - LEAF_BITS - BYTE_BITS) / 8;
- free_tracking_at((void **)tv, top_level);
- Safefree(tv);
+ if (st->free_state_cb)
+ st->free_state_cb(st);
+ if (st->state_cb_data)
+ Safefree(st->state_cb_data);
+ free_tracking_at((void **)st->tracking, top_level);
+ Safefree(st);
}
-UV thing_size(const SV *const, TRACKING *);
+/* For now, this is somewhat a compatibility bodge until the plan comes
+ together for fine grained recursion control. total_size() would recurse into
+ hash and array members, whereas sv_size() would not. However, sv_size() is
+ called with CvSTASH() of a CV, which means that if it (also) starts to
+ recurse fully, then the size of any CV now becomes the size of the entire
+ symbol table reachable from it, and potentially the entire symbol table, if
+ any subroutine makes a reference to a global (such as %SIG). The historical
+ implementation of total_size() didn't report "everything", and changing the
+ only available size to "everything" doesn't feel at all useful. */
+
+#define NO_RECURSION 0
+#define SOME_RECURSION 1
+#define TOTAL_SIZE_RECURSION 2
+
+static void sv_size(pTHX_ struct state *, pPATH, const SV *const, const int recurse);
+
typedef enum {
OPc_NULL, /* 0 */
OPc_BASEOP, /* 1 */
OPc_PVOP, /* 9 */
OPc_LOOP, /* 10 */
OPc_COP /* 11 */
+#ifdef OA_CONDOP
+ , OPc_CONDOP /* 12 */
+#endif
+#ifdef OA_GVOP
+ , OPc_GVOP /* 13 */
+#endif
+
} opclass;
static opclass
case OA_SVOP: TAG;
return OPc_SVOP;
+#ifdef OA_PADOP
case OA_PADOP: TAG;
return OPc_PADOP;
+#endif
+
+#ifdef OA_GVOP
+ case OA_GVOP: TAG;
+ return OPc_GVOP;
+#endif
+#ifdef OA_PVOP_OR_SVOP
case OA_PVOP_OR_SVOP: TAG;
/*
* Character translations (tr///) are usually a PVOP, keeping a
*/
return (o->op_private & (OPpTRANS_TO_UTF|OPpTRANS_FROM_UTF))
? OPc_SVOP : OPc_PVOP;
+#endif
case OA_LOOP: TAG;
return OPc_LOOP;
return OPc_BASEOP;
else
return OPc_PVOP;
+
+#ifdef OA_CONDOP
+ case OA_CONDOP: TAG;
+ return OPc_CONDOP;
+#endif
}
warn("Devel::Size: Can't determine class of operator %s, assuming BASEOP\n",
PL_op_name[o->op_type]);
return OPc_BASEOP;
}
-
-#if !defined(NV)
-#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) {
- IV total_size = 0;
- MAGIC *magic_pointer;
+static void
+magic_size(pTHX_ const SV * const thing, struct state *st, pPATH) {
+ dNPathNodes(1, NPathArg);
+ MAGIC *magic_pointer = SvMAGIC(thing);
- /* Is there any? */
- if (!SvMAGIC(thing)) {
- /* No, bail */
- return 0;
+ if (!magic_pointer)
+ return;
+
+ if (!SvMAGICAL(thing)) {
+ if (0) {
+ warn("Ignoring suspect magic on this SV\n");
+ sv_dump((SV*)thing);
+ }
+ return;
}
- /* Get the base magic pointer */
- magic_pointer = SvMAGIC(thing);
+ /* push a dummy node for NPathSetNode to update inside the while loop */
+ NPathPushNode("dummy", NPtype_NAME);
+
+ /* Have we seen the magic pointer? (NULL has always been seen before) */
+ while (check_new(st, magic_pointer)) {
+
+ NPathSetNode(magic_pointer, NPtype_MAGIC);
+
+ ADD_SIZE(st, "mg", sizeof(MAGIC));
+ /* magic vtables aren't freed when magic is freed, so don't count them.
+ (They are static structures. Anything that assumes otherwise is buggy.)
+ */
- /* Have we seen the magic pointer? */
- while (magic_pointer && check_new(tv, magic_pointer)) {
- total_size += sizeof(MAGIC);
TRY_TO_CATCH_SEGV {
- /* Have we seen the magic vtable? */
- if (magic_pointer->mg_virtual &&
- check_new(tv, magic_pointer->mg_virtual)) {
- total_size += sizeof(MGVTBL);
- }
+ /* XXX only chase mg_obj if mg->mg_flags & MGf_REFCOUNTED ? */
+ sv_size(aTHX_ st, NPathLink("mg_obj"), magic_pointer->mg_obj, TOTAL_SIZE_RECURSION);
+ if (magic_pointer->mg_len == HEf_SVKEY) {
+ sv_size(aTHX_ st, NPathLink("mg_ptr"), (SV *)magic_pointer->mg_ptr, TOTAL_SIZE_RECURSION);
+ }
+#if defined(PERL_MAGIC_utf8) && defined (PERL_MAGIC_UTF8_CACHESIZE)
+ else if (magic_pointer->mg_type == PERL_MAGIC_utf8) {
+ if (check_new(st, magic_pointer->mg_ptr)) {
+ ADD_SIZE(st, "PERL_MAGIC_utf8", PERL_MAGIC_UTF8_CACHESIZE * 2 * sizeof(STRLEN));
+ }
+ }
+#endif
+ /* XXX also handle mg->mg_type == PERL_MAGIC_utf8 ? */
+ else if (magic_pointer->mg_len > 0) {
+ if(0)do_magic_dump(0, Perl_debug_log, magic_pointer, 0, 0, FALSE, 0);
+ if (check_new(st, magic_pointer->mg_ptr)) {
+ ADD_SIZE(st, "mg_len", magic_pointer->mg_len);
+ }
+ }
- /* 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 (st->dangle_whine)
warn( "Devel::Size: Encountered bad magic at: %p\n", magic_pointer );
}
}
- return total_size;
}
-UV regex_size(const REGEXP * const baseregex, TRACKING *tv) {
- UV total_size = 0;
+static void
+check_new_and_strlen(struct state *st, const char *const p, pPATH) {
+ dNPathNodes(1, NPathArg->prev);
+ if(check_new(st, p)) {
+ NPathPushNode(NPathArg->id, NPtype_NAME);
+ ADD_SIZE(st, NPathArg->id, 1 + strlen(p));
+ }
+}
- total_size += sizeof(REGEXP);
+static void
+regex_size(const REGEXP * const baseregex, struct state *st, pPATH) {
+ dNPathNodes(1, NPathArg);
+ if(!check_new(st, baseregex))
+ return;
+ NPathPushNode("regex_size", NPtype_NAME);
+ ADD_SIZE(st, "REGEXP", sizeof(REGEXP));
#if (PERL_VERSION < 11)
/* Note the size of the paren offset thing */
- total_size += sizeof(I32) * baseregex->nparens * 2;
- total_size += strlen(baseregex->precomp);
+ ADD_SIZE(st, "nparens", sizeof(I32) * baseregex->nparens * 2);
+ ADD_SIZE(st, "precomp", strlen(baseregex->precomp));
#else
- total_size += sizeof(struct regexp);
- total_size += sizeof(I32) * SvANY(baseregex)->nparens * 2;
- /*total_size += strlen(SvANY(baseregex)->subbeg);*/
+ ADD_SIZE(st, "regexp", sizeof(struct regexp));
+ ADD_SIZE(st, "nparens", sizeof(I32) * SvANY(baseregex)->nparens * 2);
+ /*ADD_SIZE(st, strlen(SvANY(baseregex)->subbeg));*/
#endif
- if (go_yell && !regex_whine) {
+ if (st->go_yell && !st->regex_whine) {
carp("Devel::Size: Calculated sizes for compiled regexes are incompatible, and probably always will be");
- regex_whine = 1;
+ st->regex_whine = 1;
}
-
- return total_size;
}
-UV op_size(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);
- }
- TAG;
- switch (cc_opclass(baseop)) {
- case OPc_BASEOP: TAG;
- total_size += sizeof(struct op);
- TAG;break;
- 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);
- }
- 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);
- }
- if (check_new(tv, cBINOPx(baseop)->op_last)) {
- total_size += op_size(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);
- }
- if (check_new(tv, cLOGOPx(baseop)->op_other)) {
- total_size += op_size(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);
- }
- if (check_new(tv, cLISTOPx(baseop)->op_last)) {
- total_size += op_size(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);
- }
- if (check_new(tv, cPMOPx(baseop)->op_last)) {
- total_size += op_size(cPMOPx(baseop)->op_last, tv);
- }
+static void
+op_size(pTHX_ const OP * const baseop, struct state *st, pPATH)
+{
+ /* op_size recurses to follow the chain of opcodes. For the node path we
+ * don't want the chain to be 'nested' in the path so we use dNPathUseParent().
+ * Also, to avoid a link-to-a-link the caller should use NPathLinkAndNode()
+ * instead of NPathLink().
+ */
+ dNPathUseParent(NPathArg);
+
+ TRY_TO_CATCH_SEGV {
+ TAG;
+ if(!check_new(st, baseop))
+ return;
+ TAG;
+ op_size(aTHX_ baseop->op_next, st, NPathOpLink);
+ TAG;
+ switch (cc_opclass(baseop)) {
+ case OPc_BASEOP: TAG;
+ ADD_SIZE(st, "op", sizeof(struct op));
+ TAG;break;
+ case OPc_UNOP: TAG;
+ ADD_SIZE(st, "unop", sizeof(struct unop));
+ op_size(aTHX_ ((UNOP *)baseop)->op_first, st, NPathOpLink);
+ TAG;break;
+ case OPc_BINOP: TAG;
+ ADD_SIZE(st, "binop", sizeof(struct binop));
+ op_size(aTHX_ ((BINOP *)baseop)->op_first, st, NPathOpLink);
+ op_size(aTHX_ ((BINOP *)baseop)->op_last, st, NPathOpLink);
+ TAG;break;
+ case OPc_LOGOP: TAG;
+ ADD_SIZE(st, "logop", sizeof(struct logop));
+ op_size(aTHX_ ((BINOP *)baseop)->op_first, st, NPathOpLink);
+ op_size(aTHX_ ((LOGOP *)baseop)->op_other, st, NPathOpLink);
+ TAG;break;
+#ifdef OA_CONDOP
+ case OPc_CONDOP: TAG;
+ ADD_SIZE(st, "condop", sizeof(struct condop));
+ op_size(aTHX_ ((BINOP *)baseop)->op_first, st, NPathOpLink);
+ op_size(aTHX_ ((CONDOP *)baseop)->op_true, st, NPathOpLink);
+ op_size(aTHX_ ((CONDOP *)baseop)->op_false, st, NPathOpLink);
+ TAG;break;
+#endif
+ case OPc_LISTOP: TAG;
+ ADD_SIZE(st, "listop", sizeof(struct listop));
+ op_size(aTHX_ ((LISTOP *)baseop)->op_first, st, NPathOpLink);
+ op_size(aTHX_ ((LISTOP *)baseop)->op_last, st, NPathOpLink);
+ TAG;break;
+ case OPc_PMOP: TAG;
+ ADD_SIZE(st, "pmop", sizeof(struct pmop));
+ op_size(aTHX_ ((PMOP *)baseop)->op_first, st, NPathOpLink);
+ op_size(aTHX_ ((PMOP *)baseop)->op_last, st, NPathOpLink);
#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);
- }
- if (check_new(tv, cPMOPx(baseop)->op_pmreplstart)) {
- total_size += op_size(cPMOPx(baseop)->op_pmreplstart, tv);
- }
- if (check_new(tv, cPMOPx(baseop)->op_pmnext)) {
- total_size += op_size((OP *)cPMOPx(baseop)->op_pmnext, tv);
- }
+ op_size(aTHX_ ((PMOP *)baseop)->op_pmreplroot, st, NPathOpLink);
+ op_size(aTHX_ ((PMOP *)baseop)->op_pmreplstart, st, NPathOpLink);
#endif
- /* This is defined away in perl 5.8.x, but it is in there for
- 5.6.x */
+ /* This is defined away in perl 5.8.x, but it is in there for
+ 5.6.x */
#ifdef PM_GETRE
- if (check_new(tv, PM_GETRE((cPMOPx(baseop))))) {
- total_size += regex_size(PM_GETRE(cPMOPx(baseop)), tv);
- }
+ regex_size(PM_GETRE((PMOP *)baseop), st, NPathLink("PM_GETRE"));
#else
- if (check_new(tv, cPMOPx(baseop)->op_pmregexp)) {
- total_size += regex_size(cPMOPx(baseop)->op_pmregexp, tv);
- }
+ regex_size(((PMOP *)baseop)->op_pmregexp, st, NPathLink("op_pmregexp"));
#endif
- TAG;break;
- 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);
- }
- TAG;break;
+ TAG;break;
+ case OPc_SVOP: TAG;
+ ADD_SIZE(st, "svop", sizeof(struct svop));
+ if (!(baseop->op_type == OP_AELEMFAST
+ && baseop->op_flags & OPf_SPECIAL)) {
+ /* not an OP_PADAV replacement */
+ sv_size(aTHX_ st, NPathLink("SVOP"), ((SVOP *)baseop)->op_sv, SOME_RECURSION);
+ }
+ TAG;break;
+#ifdef OA_PADOP
case OPc_PADOP: TAG;
- total_size += sizeof(struct padop);
- TAG;break;
- case OPc_PVOP: TAG;
- if (check_new(tv, cPVOPx(baseop)->op_pv)) {
- total_size += strlen(cPVOPx(baseop)->op_pv);
- }
- 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);
- }
- if (check_new(tv, cLOOPx(baseop)->op_last)) {
- total_size += op_size(cLOOPx(baseop)->op_last, tv);
- }
- if (check_new(tv, cLOOPx(baseop)->op_redoop)) {
- total_size += op_size(cLOOPx(baseop)->op_redoop, tv);
- }
- if (check_new(tv, cLOOPx(baseop)->op_nextop)) {
- total_size += op_size(cLOOPx(baseop)->op_nextop, tv);
- }
- if (check_new(tv, cLOOPx(baseop)->op_lastop)) {
- total_size += op_size(cLOOPx(baseop)->op_lastop, tv);
- }
-
- TAG;break;
- case OPc_COP: TAG;
+ ADD_SIZE(st, "padop", sizeof(struct padop));
+ TAG;break;
+#endif
+#ifdef OA_GVOP
+ case OPc_GVOP: TAG;
+ ADD_SIZE(st, "gvop", sizeof(struct gvop));
+ sv_size(aTHX_ st, NPathLink("GVOP"), ((GVOP *)baseop)->op_gv, SOME_RECURSION);
+ TAG;break;
+#endif
+ case OPc_PVOP: TAG;
+ check_new_and_strlen(st, ((PVOP *)baseop)->op_pv, NPathLink("op_pv"));
+ TAG;break;
+ case OPc_LOOP: TAG;
+ ADD_SIZE(st, "loop", sizeof(struct loop));
+ op_size(aTHX_ ((LOOP *)baseop)->op_first, st, NPathOpLink);
+ op_size(aTHX_ ((LOOP *)baseop)->op_last, st, NPathOpLink);
+ op_size(aTHX_ ((LOOP *)baseop)->op_redoop, st, NPathOpLink);
+ op_size(aTHX_ ((LOOP *)baseop)->op_nextop, st, NPathOpLink);
+ op_size(aTHX_ ((LOOP *)baseop)->op_lastop, st, NPathOpLink);
+ TAG;break;
+ case OPc_COP: TAG;
{
COP *basecop;
basecop = (COP *)baseop;
- total_size += sizeof(struct cop);
+ ADD_SIZE(st, "cop", sizeof(struct cop));
/* Change 33656 by nicholas@mouse-mill on 2008/04/07 11:29:51
Eliminate cop_label from struct cop by storing a label as the first
before 5.11 @33656, but later than 5.10, producing slightly too
small memory sizes on these Perls. */
#if (PERL_VERSION < 11)
- if (check_new(tv, basecop->cop_label)) {
- total_size += strlen(basecop->cop_label);
- }
+ check_new_and_strlen(st, basecop->cop_label, NPathLink("cop_label"));
#endif
#ifdef USE_ITHREADS
- if (check_new(tv, basecop->cop_file)) {
- total_size += strlen(basecop->cop_file);
- }
- if (check_new(tv, basecop->cop_stashpv)) {
- total_size += strlen(basecop->cop_stashpv);
- }
+ check_new_and_strlen(st, basecop->cop_file, NPathLink("cop_file"));
+ check_new_and_strlen(st, basecop->cop_stashpv, NPathLink("cop_stashpv"));
#else
- if (check_new(tv, basecop->cop_stash)) {
- total_size += thing_size((SV *)basecop->cop_stash, tv);
- }
- if (check_new(tv, basecop->cop_filegv)) {
- total_size += thing_size((SV *)basecop->cop_filegv, tv);
- }
+ if (SvREFCNT(basecop->cop_stash) == 1) /* XXX hack? */
+ sv_size(aTHX_ st, NPathLink("cop_stash"), (SV *)basecop->cop_stash, SOME_RECURSION);
+ sv_size(aTHX_ st, NPathLink("cop_filegv"), (SV *)basecop->cop_filegv, SOME_RECURSION);
#endif
}
}
}
CAUGHT_EXCEPTION {
- if( dangle_whine )
+ if (st->dangle_whine)
warn( "Devel::Size: Encountered dangling pointer in opcode at: %p\n", baseop );
}
- return total_size;
}
-#if PERL_VERSION > 9 || (PERL_VERSION == 9 && PERL_SUBVERSION > 2)
-# define NEW_HEAD_LAYOUT
-#endif
-
-UV thing_size(const SV * const orig_thing, TRACKING *tv) {
- const SV *thing = orig_thing;
- UV total_size = sizeof(SV);
-
- switch (SvTYPE(thing)) {
- /* Is it undef? */
- case SVt_NULL: TAG;
- TAG;break;
- /* Just a plain integer. This will be differently sized depending
- on whether purify's been compiled in */
- case SVt_IV: TAG;
-#ifndef NEW_HEAD_LAYOUT
-# ifdef PURIFY
- total_size += sizeof(sizeof(XPVIV));
-# else
- total_size += sizeof(IV);
-# endif
-#endif
- TAG;break;
- /* Is it a float? Like the int, it depends on purify */
- case SVt_NV: TAG;
-#ifdef PURIFY
- total_size += sizeof(sizeof(XPVNV));
-#else
- total_size += sizeof(NV);
-#endif
- TAG;break;
-#if (PERL_VERSION < 11)
- /* Is it a reference? */
- case SVt_RV: TAG;
-#ifndef NEW_HEAD_LAYOUT
- total_size += sizeof(XRV);
-#endif
- TAG;break;
-#endif
- /* How about a plain string? In which case we need to add in how
- much has been allocated */
- case SVt_PV: TAG;
- total_size += sizeof(XPV);
-#if (PERL_VERSION < 11)
- total_size += SvROK(thing) ? thing_size( SvRV(thing), tv) : SvLEN(thing);
+static void
+hek_size(pTHX_ struct state *st, HEK *hek, U32 shared, pPATH)
+{
+ dNPathNodes(1, NPathArg);
+
+ /* Hash keys can be shared. Have we seen this before? */
+ if (!check_new(st, hek))
+ return;
+ NPathPushNode("hek", NPtype_NAME);
+ ADD_SIZE(st, "hek_len", HEK_BASESIZE + hek->hek_len
+#if PERL_VERSION < 8
+ + 1 /* No hash key flags prior to 5.8.0 */
#else
- total_size += SvLEN(thing);
+ + 2
#endif
- TAG;break;
- /* A string with an integer part? */
- case SVt_PVIV: TAG;
- total_size += sizeof(XPVIV);
-#if (PERL_VERSION < 11)
- total_size += SvROK(thing) ? thing_size( SvRV(thing), tv) : SvLEN(thing);
+ );
+ if (shared) {
+#if PERL_VERSION < 10
+ ADD_SIZE(st, "he", sizeof(struct he));
#else
- total_size += SvLEN(thing);
+ ADD_SIZE(st, "shared_he", STRUCT_OFFSET(struct shared_he, shared_he_hek));
#endif
- if(SvOOK(thing)) {
- total_size += SvIVX(thing);
}
- TAG;break;
- /* A scalar/string/reference with a float part? */
- case SVt_PVNV: TAG;
- total_size += sizeof(XPVNV);
-#if (PERL_VERSION < 11)
- total_size += SvROK(thing) ? thing_size( SvRV(thing), tv) : SvLEN(thing);
-#else
- total_size += SvLEN(thing);
+}
+
+
+#if PERL_VERSION < 8 || PERL_SUBVERSION < 9
+# define SVt_LAST 16
#endif
- TAG;break;
- case SVt_PVMG: TAG;
- total_size += sizeof(XPVMG);
-#if (PERL_VERSION < 11)
- total_size += SvROK(thing) ? thing_size( SvRV(thing), tv) : SvLEN(thing);
+
+#ifdef PURIFY
+# define MAYBE_PURIFY(normal, pure) (pure)
+# define MAYBE_OFFSET(struct_name, member) 0
#else
- total_size += SvLEN(thing);
+# define MAYBE_PURIFY(normal, pure) (normal)
+# define MAYBE_OFFSET(struct_name, member) STRUCT_OFFSET(struct_name, member)
#endif
- total_size += magic_size(thing, tv);
- TAG;break;
-#if PERL_VERSION <= 8
- case SVt_PVBM: TAG;
- total_size += sizeof(XPVBM);
-#if (PERL_VERSION < 11)
- total_size += SvROK(thing) ? thing_size( SvRV(thing), tv) : SvLEN(thing);
+
+const U8 body_sizes[SVt_LAST] = {
+#if PERL_VERSION < 9
+ 0, /* SVt_NULL */
+ MAYBE_PURIFY(sizeof(IV), sizeof(XPVIV)), /* SVt_IV */
+ MAYBE_PURIFY(sizeof(NV), sizeof(XPVNV)), /* SVt_NV */
+ sizeof(XRV), /* SVt_RV */
+ sizeof(XPV), /* SVt_PV */
+ sizeof(XPVIV), /* SVt_PVIV */
+ sizeof(XPVNV), /* SVt_PVNV */
+ sizeof(XPVMG), /* SVt_PVMG */
+ sizeof(XPVBM), /* SVt_PVBM */
+ sizeof(XPVLV), /* SVt_PVLV */
+ sizeof(XPVAV), /* SVt_PVAV */
+ sizeof(XPVHV), /* SVt_PVHV */
+ sizeof(XPVCV), /* SVt_PVCV */
+ sizeof(XPVGV), /* SVt_PVGV */
+ sizeof(XPVFM), /* SVt_PVFM */
+ sizeof(XPVIO) /* SVt_PVIO */
+#elif PERL_VERSION == 10 && PERL_SUBVERSION == 0
+ 0, /* SVt_NULL */
+ 0, /* SVt_BIND */
+ 0, /* SVt_IV */
+ MAYBE_PURIFY(sizeof(NV), sizeof(XPVNV)), /* SVt_NV */
+ 0, /* SVt_RV */
+ MAYBE_PURIFY(sizeof(xpv_allocated), sizeof(XPV)), /* SVt_PV */
+ MAYBE_PURIFY(sizeof(xpviv_allocated), sizeof(XPVIV)),/* SVt_PVIV */
+ sizeof(XPVNV), /* SVt_PVNV */
+ sizeof(XPVMG), /* SVt_PVMG */
+ sizeof(XPVGV), /* SVt_PVGV */
+ sizeof(XPVLV), /* SVt_PVLV */
+ MAYBE_PURIFY(sizeof(xpvav_allocated), sizeof(XPVAV)),/* SVt_PVAV */
+ MAYBE_PURIFY(sizeof(xpvhv_allocated), sizeof(XPVHV)),/* SVt_PVHV */
+ MAYBE_PURIFY(sizeof(xpvcv_allocated), sizeof(XPVCV)),/* SVt_PVCV */
+ MAYBE_PURIFY(sizeof(xpvfm_allocated), sizeof(XPVFM)),/* SVt_PVFM */
+ sizeof(XPVIO), /* SVt_PVIO */
+#elif PERL_VERSION == 10 && PERL_SUBVERSION == 1
+ 0, /* SVt_NULL */
+ 0, /* SVt_BIND */
+ 0, /* SVt_IV */
+ MAYBE_PURIFY(sizeof(NV), sizeof(XPVNV)), /* SVt_NV */
+ 0, /* SVt_RV */
+ sizeof(XPV) - MAYBE_OFFSET(XPV, xpv_cur), /* SVt_PV */
+ sizeof(XPVIV) - MAYBE_OFFSET(XPV, xpv_cur), /* SVt_PVIV */
+ sizeof(XPVNV), /* SVt_PVNV */
+ sizeof(XPVMG), /* SVt_PVMG */
+ sizeof(XPVGV), /* SVt_PVGV */
+ sizeof(XPVLV), /* SVt_PVLV */
+ sizeof(XPVAV) - MAYBE_OFFSET(XPVAV, xav_fill), /* SVt_PVAV */
+ sizeof(XPVHV) - MAYBE_OFFSET(XPVHV, xhv_fill), /* SVt_PVHV */
+ sizeof(XPVCV) - MAYBE_OFFSET(XPVCV, xpv_cur), /* SVt_PVCV */
+ sizeof(XPVFM) - MAYBE_OFFSET(XPVFM, xpv_cur), /* SVt_PVFM */
+ sizeof(XPVIO) /* SVt_PVIO */
+#elif PERL_VERSION < 13
+ 0, /* SVt_NULL */
+ 0, /* SVt_BIND */
+ 0, /* SVt_IV */
+ MAYBE_PURIFY(sizeof(NV), sizeof(XPVNV)), /* SVt_NV */
+ sizeof(XPV) - MAYBE_OFFSET(XPV, xpv_cur), /* SVt_PV */
+ sizeof(XPVIV) - MAYBE_OFFSET(XPV, xpv_cur), /* SVt_PVIV */
+ sizeof(XPVNV), /* SVt_PVNV */
+ sizeof(XPVMG), /* SVt_PVMG */
+ sizeof(regexp) - MAYBE_OFFSET(regexp, xpv_cur), /* SVt_REGEXP */
+ sizeof(XPVGV), /* SVt_PVGV */
+ sizeof(XPVLV), /* SVt_PVLV */
+ sizeof(XPVAV) - MAYBE_OFFSET(XPVAV, xav_fill), /* SVt_PVAV */
+ sizeof(XPVHV) - MAYBE_OFFSET(XPVHV, xhv_fill), /* SVt_PVHV */
+ sizeof(XPVCV) - MAYBE_OFFSET(XPVCV, xpv_cur), /* SVt_PVCV */
+ sizeof(XPVFM) - MAYBE_OFFSET(XPVFM, xpv_cur), /* SVt_PVFM */
+ sizeof(XPVIO) /* SVt_PVIO */
#else
- total_size += SvLEN(thing);
+ 0, /* SVt_NULL */
+ 0, /* SVt_BIND */
+ 0, /* SVt_IV */
+ MAYBE_PURIFY(sizeof(NV), sizeof(XPVNV)), /* SVt_NV */
+ sizeof(XPV) - MAYBE_OFFSET(XPV, xpv_cur), /* SVt_PV */
+ sizeof(XPVIV) - MAYBE_OFFSET(XPV, xpv_cur), /* SVt_PVIV */
+ sizeof(XPVNV) - MAYBE_OFFSET(XPV, xpv_cur), /* SVt_PVNV */
+ sizeof(XPVMG), /* SVt_PVMG */
+ sizeof(regexp), /* SVt_REGEXP */
+ sizeof(XPVGV), /* SVt_PVGV */
+ sizeof(XPVLV), /* SVt_PVLV */
+ sizeof(XPVAV), /* SVt_PVAV */
+ sizeof(XPVHV), /* SVt_PVHV */
+ sizeof(XPVCV), /* SVt_PVCV */
+ sizeof(XPVFM), /* SVt_PVFM */
+ sizeof(XPVIO) /* SVt_PVIO */
#endif
- total_size += magic_size(thing, tv);
- TAG;break;
-#endif
- case SVt_PVLV: TAG;
- total_size += sizeof(XPVLV);
+};
+
+
+/* based on Perl_do_dump_pad() - wraps sv_size and adds ADD_ATTR calls for the pad names */
+static void
+padlist_size(pTHX_ struct state *const st, pPATH, PADLIST *padlist,
+ const int recurse)
+{
+ dNPathUseParent(NPathArg);
+ const AV *pad_name;
+ SV **pname;
+ I32 ix;
+
+ if (!padlist) {
+ return;
+ }
+ pad_name = MUTABLE_AV(*av_fetch(MUTABLE_AV(padlist), 0, FALSE));
+ pname = AvARRAY(pad_name);
+
+ for (ix = 1; ix <= AvFILLp(pad_name); ix++) {
+ const SV *namesv = pname[ix];
+ if (namesv && namesv == &PL_sv_undef) {
+ namesv = NULL;
+ }
+ if (namesv) {
+ if (SvFAKE(namesv))
+ ADD_ATTR(st, NPattr_PADFAKE, SvPVX_const(namesv), ix);
+ else
+ ADD_ATTR(st, NPattr_PADNAME, SvPVX_const(namesv), ix);
+ }
+ else {
+ ADD_ATTR(st, NPattr_PADTMP, "SVs_PADTMP", ix);
+ }
+
+ }
+ sv_size(aTHX_ st, NPathArg, (SV*)padlist, recurse);
+}
+
+
+static void
+sv_size(pTHX_ struct state *const st, pPATH, const SV * const orig_thing,
+ const int recurse) {
+ const SV *thing = orig_thing;
+ dNPathNodes(3, NPathArg);
+ U32 type;
+
+ if(!check_new(st, orig_thing))
+ return;
+
+ type = SvTYPE(thing);
+ if (type > SVt_LAST) {
+ warn("Devel::Size: Unknown variable type: %d encountered\n", type);
+ return;
+ }
+ NPathPushNode(thing, NPtype_SV);
+ ADD_SIZE(st, "sv", sizeof(SV) + body_sizes[type]);
+
+ switch (type) {
#if (PERL_VERSION < 11)
- total_size += SvROK(thing) ? thing_size( SvRV(thing), tv) : SvLEN(thing);
+ /* Is it a reference? */
+ case SVt_RV: TAG;
#else
- total_size += SvLEN(thing);
+ case SVt_IV: TAG;
#endif
- total_size += magic_size(thing, tv);
+ if(recurse && SvROK(thing))
+ sv_size(aTHX_ st, NPathLink("RV"), SvRV_const(thing), recurse);
TAG;break;
- /* How much space is dedicated to the array? Not counting the
- elements in the array, mind, just the array itself */
+
case SVt_PVAV: TAG;
- total_size += sizeof(XPVAV);
/* Is there anything in the array? */
if (AvMAX(thing) != -1) {
/* an array with 10 slots has AvMax() set to 9 - te 2007-04-22 */
- total_size += sizeof(SV *) * (AvMAX(thing) + 1);
- dbg_printf(("total_size: %li AvMAX: %li av_len: $i\n", total_size, AvMAX(thing), av_len((AV*)thing)));
+ ADD_SIZE(st, "av_max", sizeof(SV *) * (AvMAX(thing) + 1));
+ dbg_printf(("total_size: %li AvMAX: %li av_len: $i\n", st->total_size, AvMAX(thing), av_len((AV*)thing)));
+
+ if (recurse >= st->min_recurse_threshold) {
+ SSize_t i = AvFILLp(thing) + 1;
+
+ while (i--)
+ sv_size(aTHX_ st, NPathLink("AVelem"), AvARRAY(thing)[i], recurse);
+ }
}
/* Add in the bits on the other side of the beginning */
dbg_printf(("total_size %li, sizeof(SV *) %li, AvARRAY(thing) %li, AvALLOC(thing)%li , sizeof(ptr) %li \n",
- total_size, sizeof(SV*), AvARRAY(thing), AvALLOC(thing), sizeof( thing )));
+ st->total_size, sizeof(SV*), AvARRAY(thing), AvALLOC(thing), sizeof( thing )));
/* under Perl 5.8.8 64bit threading, AvARRAY(thing) was a pointer while AvALLOC was 0,
resulting in grossly overstated sized for arrays. Technically, this shouldn't happen... */
if (AvALLOC(thing) != 0) {
- total_size += (sizeof(SV *) * (AvARRAY(thing) - AvALLOC(thing)));
+ ADD_SIZE(st, "AvALLOC", (sizeof(SV *) * (AvARRAY(thing) - AvALLOC(thing))));
}
#if (PERL_VERSION < 9)
/* Is there something hanging off the arylen element?
Post 5.9.something this is stored in magic, so will be found there,
and Perl_av_arylen_p() takes a non-const AV*, hence compilers rightly
complain about AvARYLEN() passing thing to it. */
- if (AvARYLEN(thing)) {
- if (check_new(tv, AvARYLEN(thing))) {
- total_size += thing_size(AvARYLEN(thing), tv);
- }
- }
+ sv_size(aTHX_ st, NPathLink("ARYLEN"), AvARYLEN(thing), recurse);
#endif
- total_size += magic_size(thing, tv);
TAG;break;
+
case SVt_PVHV: TAG;
- /* First the base struct */
- total_size += sizeof(XPVHV);
/* Now the array of buckets */
- total_size += (sizeof(HE *) * (HvMAX(thing) + 1));
+ ADD_SIZE(st, "hv_max", (sizeof(HE *) * (HvMAX(thing) + 1)));
+ if (HvENAME(thing)) {
+ ADD_ATTR(st, NPattr_NAME, HvENAME(thing), 0);
+ }
/* Now walk the bucket chain */
if (HvARRAY(thing)) {
HE *cur_entry;
for (cur_bucket = 0; cur_bucket <= HvMAX(thing); cur_bucket++) {
cur_entry = *(HvARRAY(thing) + cur_bucket);
while (cur_entry) {
- total_size += sizeof(HE);
- if (cur_entry->hent_hek) {
- /* Hash keys can be shared. Have we seen this before? */
- if (check_new(tv, cur_entry->hent_hek)) {
- total_size += HEK_BASESIZE + cur_entry->hent_hek->hek_len + 2;
- }
- }
+/* XXX a HE should probably be a node so the keys and values are seen as pairs */
+ ADD_SIZE(st, "he", sizeof(HE));
+ hek_size(aTHX_ st, cur_entry->hent_hek, HvSHAREKEYS(thing), NPathLink("hent_hek"));
+ if (recurse >= st->min_recurse_threshold) {
+/* I've seen a PL_strtab HeVAL == 0xC and 0x40C etc
+ * just running perl -Mblib -Mstrict -MDevel::Size=:all -MCarp -e 'warn perl_size()'
+ * but it seemed like a corruption - it would change come and go with irrelevant code changes.
+ * so we protect against that here, but I'd like to know the cause.
+ */
+if (PTR2UV(HeVAL(cur_entry)) > 0xFFF)
+ sv_size(aTHX_ st, NPathLink("HeVAL"), HeVAL(cur_entry), recurse);
+else warn("skipped suspect HeVAL %p", HeVAL(cur_entry));
+ }
cur_entry = cur_entry->hent_next;
}
}
}
- total_size += magic_size(thing, tv);
- TAG;break;
- case SVt_PVCV: TAG;
- total_size += sizeof(XPVCV);
- total_size += magic_size(thing, tv);
-
- total_size += ((XPVIO *) SvANY(thing))->xpv_len;
- if (check_new(tv, CvSTASH(thing))) {
- total_size += thing_size((SV *)CvSTASH(thing), tv);
- }
- if (check_new(tv, SvSTASH(thing))) {
- total_size += thing_size( (SV *)SvSTASH(thing), tv);
- }
- if (check_new(tv, CvGV(thing))) {
- total_size += thing_size((SV *)CvGV(thing), tv);
- }
- if (check_new(tv, CvPADLIST(thing))) {
- total_size += thing_size((SV *)CvPADLIST(thing), tv);
- }
- if (check_new(tv, CvOUTSIDE(thing))) {
- total_size += thing_size((SV *)CvOUTSIDE(thing), tv);
- }
- if (!CvISXSUB(thing)) {
- if (check_new(tv, CvSTART(thing))) {
- total_size += op_size(CvSTART(thing), tv);
+#ifdef HvAUX
+ if (SvOOK(thing)) {
+ /* This direct access is arguably "naughty": */
+ struct mro_meta *meta = HvAUX(thing)->xhv_mro_meta;
+#if PERL_VERSION > 13 || PERL_SUBVERSION > 8
+ /* As is this: */
+ I32 count = HvAUX(thing)->xhv_name_count;
+
+ if (count) {
+ HEK **names = HvAUX(thing)->xhv_name_u.xhvnameu_names;
+ if (count < 0)
+ count = -count;
+ while (--count)
+ hek_size(aTHX_ st, names[count], 1, NPathLink("HvAUXelem"));
}
- if (check_new(tv, CvROOT(thing))) {
- total_size += op_size(CvROOT(thing), tv);
+ else
+#endif
+ {
+ hek_size(aTHX_ st, HvNAME_HEK(thing), 1, NPathLink("HvNAME_HEK"));
}
- }
- TAG;break;
- case SVt_PVGV: TAG;
- total_size += magic_size(thing, tv);
- total_size += sizeof(XPVGV);
- total_size += GvNAMELEN(thing);
-#ifdef GvFILE
- /* Is there a file? */
- if (GvFILE(thing)) {
- if (check_new(tv, GvFILE(thing))) {
- total_size += strlen(GvFILE(thing));
- }
- }
+ ADD_SIZE(st, "xpvhv_aux", sizeof(struct xpvhv_aux));
+ if (meta) {
+ ADD_SIZE(st, "mro_meta", sizeof(struct mro_meta));
+ sv_size(aTHX_ st, NPathLink("mro_nextmethod"), (SV *)meta->mro_nextmethod, TOTAL_SIZE_RECURSION);
+#if PERL_VERSION > 10 || (PERL_VERSION == 10 && PERL_SUBVERSION > 0)
+ sv_size(aTHX_ st, NPathLink("isa"), (SV *)meta->isa, TOTAL_SIZE_RECURSION);
#endif
- /* Is there something hanging off the glob? */
- if (GvGP(thing)) {
- if (check_new(tv, GvGP(thing))) {
- total_size += sizeof(GP);
- {
- SV *generic_thing;
- if ((generic_thing = (SV *)(GvGP(thing)->gp_sv))) {
- total_size += thing_size(generic_thing, tv);
- }
- if ((generic_thing = (SV *)(GvGP(thing)->gp_form))) {
- total_size += thing_size(generic_thing, tv);
- }
- if ((generic_thing = (SV *)(GvGP(thing)->gp_av))) {
- total_size += thing_size(generic_thing, tv);
- }
- if ((generic_thing = (SV *)(GvGP(thing)->gp_hv))) {
- total_size += thing_size(generic_thing, tv);
- }
- if ((generic_thing = (SV *)(GvGP(thing)->gp_egv))) {
- total_size += thing_size(generic_thing, tv);
- }
- if ((generic_thing = (SV *)(GvGP(thing)->gp_cv))) {
- total_size += thing_size(generic_thing, tv);
- }
- }
- }
+#if PERL_VERSION > 10
+ sv_size(aTHX_ st, NPathLink("mro_linear_all"), (SV *)meta->mro_linear_all, TOTAL_SIZE_RECURSION);
+ sv_size(aTHX_ st, NPathLink("mro_linear_current"), meta->mro_linear_current, TOTAL_SIZE_RECURSION);
+#else
+ sv_size(aTHX_ st, NPathLink("mro_linear_dfs"), (SV *)meta->mro_linear_dfs, TOTAL_SIZE_RECURSION);
+ sv_size(aTHX_ st, NPathLink("mro_linear_c3"), (SV *)meta->mro_linear_c3, TOTAL_SIZE_RECURSION);
+#endif
+ }
}
+#else
+ check_new_and_strlen(st, HvNAME_get(thing), NPathLink("HvNAME"));
+#endif
TAG;break;
+
+
case SVt_PVFM: TAG;
- total_size += sizeof(XPVFM);
- 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);
- }
- if (check_new(tv, CvOUTSIDE(thing))) {
- total_size += thing_size((SV *)CvOUTSIDE(thing), tv);
- }
+ padlist_size(aTHX_ st, NPathLink("CvPADLIST"), CvPADLIST(thing), recurse);
+ sv_size(aTHX_ st, NPathLink("CvOUTSIDE"), (SV *)CvOUTSIDE(thing), recurse);
- if (go_yell && !fm_whine) {
+ if (st->go_yell && !st->fm_whine) {
carp("Devel::Size: Calculated sizes for FMs are incomplete");
- fm_whine = 1;
+ st->fm_whine = 1;
}
- TAG;break;
- case SVt_PVIO: TAG;
- total_size += sizeof(XPVIO);
- total_size += magic_size(thing, tv);
- if (check_new(tv, (SvPVX_const(thing)))) {
- total_size += ((XPVIO *) SvANY(thing))->xpv_cur;
+ goto freescalar;
+
+ case SVt_PVCV: TAG;
+ /* not CvSTASH, per https://rt.cpan.org/Ticket/Display.html?id=79366 */
+ sv_size(aTHX_ st, NPathLink("SvSTASH"), (SV *)SvSTASH(thing), SOME_RECURSION);
+ sv_size(aTHX_ st, NPathLink("CvGV"), (SV *)CvGV(thing), SOME_RECURSION);
+ padlist_size(aTHX_ st, NPathLink("CvPADLIST"), CvPADLIST(thing), recurse);
+ sv_size(aTHX_ st, NPathLink("CvOUTSIDE"), (SV *)CvOUTSIDE(thing), recurse);
+ if (CvISXSUB(thing)) {
+ sv_size(aTHX_ st, NPathLink("cv_const_sv"), cv_const_sv((CV *)thing), recurse);
+ } else {
+ if(1)op_size(aTHX_ CvSTART(thing), st, NPathLinkAndNode("CvSTART", "OPs")); /* XXX ? */
+ op_size(aTHX_ CvROOT(thing), st, NPathLinkAndNode("CvROOT", "OPs"));
}
+ goto freescalar;
+
+ case SVt_PVIO: TAG;
/* Some embedded char pointers */
- if (check_new(tv, ((XPVIO *) SvANY(thing))->xio_top_name)) {
- total_size += strlen(((XPVIO *) SvANY(thing))->xio_top_name);
- }
- if (check_new(tv, ((XPVIO *) SvANY(thing))->xio_fmt_name)) {
- total_size += strlen(((XPVIO *) SvANY(thing))->xio_fmt_name);
- }
- if (check_new(tv, ((XPVIO *) SvANY(thing))->xio_bottom_name)) {
- total_size += strlen(((XPVIO *) SvANY(thing))->xio_bottom_name);
- }
+ check_new_and_strlen(st, ((XPVIO *) SvANY(thing))->xio_top_name, NPathLink("xio_top_name"));
+ check_new_and_strlen(st, ((XPVIO *) SvANY(thing))->xio_fmt_name, NPathLink("xio_fmt_name"));
+ check_new_and_strlen(st, ((XPVIO *) SvANY(thing))->xio_bottom_name, NPathLink("xio_bottom_name"));
/* 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,
- tv);
- }
- if (((XPVIO *) SvANY(thing))->xio_bottom_gv) {
- total_size += thing_size((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,
- tv);
- }
+ sv_size(aTHX_ st, NPathLink("xio_top_gv"), (SV *)((XPVIO *) SvANY(thing))->xio_top_gv, recurse);
+ sv_size(aTHX_ st, NPathLink("xio_bottom_gv"), (SV *)((XPVIO *) SvANY(thing))->xio_bottom_gv, recurse);
+ sv_size(aTHX_ st, NPathLink("xio_fmt_gv"), (SV *)((XPVIO *) SvANY(thing))->xio_fmt_gv, recurse);
/* Only go trotting through the IO structures if they're really
trottable. If USE_PERLIO is defined we can do this. If
/* Dig into xio_ifp and xio_ofp here */
warn("Devel::Size: Can't size up perlio layers yet\n");
#endif
+ goto freescalar;
+
+ case SVt_PVLV: TAG;
+#if (PERL_VERSION < 9)
+ goto freescalar;
+#endif
+
+ case SVt_PVGV: TAG;
+ if(isGV_with_GP(thing)) {
+#ifdef GvNAME_HEK
+ hek_size(aTHX_ st, GvNAME_HEK(thing), 1, NPathLink("GvNAME_HEK"));
+#else
+ ADD_SIZE(st, "GvNAMELEN", GvNAMELEN(thing));
+#endif
+ ADD_ATTR(st, NPattr_NAME, GvNAME_get(thing), 0);
+#ifdef GvFILE_HEK
+ hek_size(aTHX_ st, GvFILE_HEK(thing), 1, NPathLink("GvFILE_HEK"));
+#elif defined(GvFILE)
+# if !defined(USE_ITHREADS) || (PERL_VERSION > 8 || (PERL_VERSION == 8 && PERL_SUBVERSION > 8))
+ /* With itreads, before 5.8.9, this can end up pointing to freed memory
+ if the GV was created in an eval, as GvFILE() points to CopFILE(),
+ and the relevant COP has been freed on scope cleanup after the eval.
+ 5.8.9 adds a binary compatible fudge that catches the vast majority
+ of cases. 5.9.something added a proper fix, by converting the GP to
+ use a shared hash key (porperly reference counted), instead of a
+ char * (owned by who knows? possibly no-one now) */
+ check_new_and_strlen(st, GvFILE(thing), NPathLink("GvFILE"));
+# endif
+#endif
+ /* Is there something hanging off the glob? */
+ if (check_new(st, GvGP(thing))) {
+ ADD_SIZE(st, "GP", sizeof(GP));
+ sv_size(aTHX_ st, NPathLink("gp_sv"), (SV *)(GvGP(thing)->gp_sv), recurse);
+ sv_size(aTHX_ st, NPathLink("gp_av"), (SV *)(GvGP(thing)->gp_av), recurse);
+ sv_size(aTHX_ st, NPathLink("gp_hv"), (SV *)(GvGP(thing)->gp_hv), recurse);
+ sv_size(aTHX_ st, NPathLink("gp_cv"), (SV *)(GvGP(thing)->gp_cv), recurse);
+ sv_size(aTHX_ st, NPathLink("gp_egv"), (SV *)(GvGP(thing)->gp_egv), recurse);
+ sv_size(aTHX_ st, NPathLink("gp_form"), (SV *)(GvGP(thing)->gp_form), recurse);
+ }
+#if (PERL_VERSION >= 9)
+ TAG; break;
+#endif
+ }
+#if PERL_VERSION <= 8
+ case SVt_PVBM: TAG;
+#endif
+ case SVt_PVMG: TAG;
+ case SVt_PVNV: TAG;
+ case SVt_PVIV: TAG;
+ case SVt_PV: TAG;
+ freescalar:
+ if(recurse && SvROK(thing))
+ sv_size(aTHX_ st, NPathLink("RV"), SvRV_const(thing), recurse);
+ else if (SvIsCOW_shared_hash(thing))
+ hek_size(aTHX_ st, SvSHARED_HEK_FROM_PV(SvPVX(thing)), 1, NPathLink("SvSHARED_HEK_FROM_PV"));
+ else
+ ADD_SIZE(st, "SvLEN", SvLEN(thing));
+
+ if(SvOOK(thing)) {
+ STRLEN len;
+ SvOOK_offset(thing, len);
+ ADD_SIZE(st, "SvOOK", len);
+ }
TAG;break;
- default:
- warn("Devel::Size: Unknown variable type: %d encountered\n", SvTYPE(thing) );
+
+ }
+
+ if (type >= SVt_PVMG) {
+ magic_size(aTHX_ thing, st, NPathLink("MG"));
}
- return total_size;
+
+ return;
+}
+
+static void
+free_memnode_state(pTHX_ struct state *st)
+{
+ if (st->node_stream_fh && st->node_stream_name) {
+ if (*st->node_stream_name == '|') {
+ if (pclose(st->node_stream_fh))
+ warn("%s exited with an error status\n", st->node_stream_name);
+ }
+ else {
+ if (fclose(st->node_stream_fh))
+ warn("Error closing %s: %s\n", st->node_stream_name, strerror(errno));
+ }
+ }
+}
+
+static struct state *
+new_state(pTHX)
+{
+ SV *warn_flag;
+ struct state *st;
+
+ Newxz(st, 1, struct state);
+ st->go_yell = TRUE;
+ st->min_recurse_threshold = TOTAL_SIZE_RECURSION;
+ if (NULL != (warn_flag = perl_get_sv("Devel::Size::warn", FALSE))) {
+ st->dangle_whine = st->go_yell = SvIV(warn_flag) ? TRUE : FALSE;
+ }
+ if (NULL != (warn_flag = perl_get_sv("Devel::Size::dangle", FALSE))) {
+ st->dangle_whine = SvIV(warn_flag) ? TRUE : FALSE;
+ }
+ check_new(st, &PL_sv_undef);
+ check_new(st, &PL_sv_no);
+ check_new(st, &PL_sv_yes);
+#if PERL_VERSION > 8 || (PERL_VERSION == 8 && PERL_SUBVERSION > 0)
+ check_new(st, &PL_sv_placeholder);
+#endif
+#ifdef PATH_TRACKING
+ if (getenv("MEMNODES") && *getenv("MEMNODES")) { /* XXX quick hack */
+ st->node_stream_name = getenv("MEMNODES");
+ if (*st->node_stream_name == '|')
+ st->node_stream_fh = popen(st->node_stream_name+1, "w");
+ else
+ st->node_stream_fh = fopen(st->node_stream_name, "wb");
+ if (!st->node_stream_fh)
+ croak("Can't open '%s' for writing: %s", st->node_stream_name, strerror(errno));
+ setlinebuf(st->node_stream_fh); /* XXX temporary for debugging */
+ st->add_attr_cb = np_stream_node_path_info;
+ }
+ else
+ st->add_attr_cb = np_dump_node_path_info;
+ st->free_state_cb = free_memnode_state;
+#endif
+ return st;
+}
+
+/* XXX based on S_visit() in sv.c */
+static void
+unseen_sv_size(pTHX_ struct state *st, pPATH)
+{
+ dVAR;
+ SV* sva;
+ I32 visited = 0;
+ dNPathNodes(1, NPathArg);
+
+ NPathPushNode("unseen", NPtype_NAME);
+
+ /* by this point we should have visited all the SVs
+ * so now we'll run through all the SVs via the arenas
+ * in order to find any thet we've missed for some reason.
+ * Once the rest of the code is finding all the SVs then any
+ * found here will be leaks.
+ */
+ for (sva = PL_sv_arenaroot; sva; sva = MUTABLE_SV(SvANY(sva))) {
+ const SV * const svend = &sva[SvREFCNT(sva)];
+ SV* sv;
+ for (sv = sva + 1; sv < svend; ++sv) {
+ if (SvTYPE(sv) != (svtype)SVTYPEMASK && SvREFCNT(sv)) {
+ sv_size(aTHX_ st, NPathLink("arena"), sv, TOTAL_SIZE_RECURSION);
+ }
+ else if (check_new(st, sv)) { /* sanity check */
+ warn("unseen_sv_size encountered freed SV unexpectedly");
+ sv_dump(sv);
+ }
+ }
+ }
}
MODULE = Devel::Size PACKAGE = Devel::Size
PROTOTYPES: DISABLE
-IV
+UV
size(orig_thing)
SV *orig_thing
+ALIAS:
+ total_size = TOTAL_SIZE_RECURSION
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);
- }
+ struct state *st = new_state(aTHX);
/* If they passed us a reference then dereference it. This is the
only way we can check the sizes of arrays and hashes */
-#if (PERL_VERSION < 11)
- if (SvOK(thing) && SvROK(thing)) {
- thing = SvRV(thing);
- }
-#else
if (SvROK(thing)) {
thing = SvRV(thing);
}
-#endif
- RETVAL = thing_size(thing, tv);
- free_tracking(tv);
+ sv_size(aTHX_ st, NULL, thing, ix);
+ RETVAL = st->total_size;
+ free_state(st);
}
OUTPUT:
RETVAL
-
-IV
-total_size(orig_thing)
- SV *orig_thing
+UV
+perl_size()
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;
-
- /* 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
- later (see below for "*** dereference later") and adjust here for
- the miscalculation.
- This is the only way we can check the sizes of arrays and hashes. */
- if (SvROK(thing)) {
- RETVAL -= thing_size(thing, NULL);
- }
-
- /* Put it on the pending array */
- av_push(pending_array, thing);
-
- /* Now just yank things off the end of the array until it's done */
- while (av_len(pending_array) >= 0) {
- thing = av_pop(pending_array);
- /* Process it if we've not seen it */
- if (check_new(tv, thing)) {
- dbg_printf(("# Found type %i at %p\n", SvTYPE(thing), thing));
- /* Is it valid? */
- if (thing) {
- /* Yes, it is. So let's check the type */
- switch (SvTYPE(thing)) {
- /* fix for bug #24846 (Does not correctly recurse into references in a PVNV-type scalar) */
- case SVt_PVNV: TAG;
- if (SvROK(thing))
- {
- av_push(pending_array, SvRV(thing));
- }
- TAG;break;
-
- /* this is the "*** dereference later" part - see above */
-#if (PERL_VERSION < 11)
- case SVt_RV: TAG;
-#else
- case SVt_IV: TAG;
-#endif
- dbg_printf(("# Found RV\n"));
- if (SvROK(thing)) {
- dbg_printf(("# Found RV\n"));
- av_push(pending_array, SvRV(thing));
- }
- TAG;break;
-
- case SVt_PVAV: TAG;
- {
- AV *tempAV = (AV *)thing;
- SV **tempSV;
-
- dbg_printf(("# Found type AV\n"));
- /* Quick alias to cut down on casting */
-
- /* Any elements? */
- if (av_len(tempAV) != -1) {
- IV index;
- /* Run through them all */
- for (index = 0; index <= av_len(tempAV); index++) {
- /* Did we get something? */
- if ((tempSV = av_fetch(tempAV, index, 0))) {
- /* Was it undef? */
- if (*tempSV != &PL_sv_undef) {
- /* Apparently not. Save it for later */
- av_push(pending_array, *tempSV);
- }
- }
- }
- }
- }
- TAG;break;
-
- case SVt_PVHV: TAG;
- dbg_printf(("# Found type HV\n"));
- /* Is there anything in here? */
- if (hv_iterinit((HV *)thing)) {
- HE *temp_he;
- while ((temp_he = hv_iternext((HV *)thing))) {
- av_push(pending_array, hv_iterval((HV *)thing, temp_he));
- }
- }
- TAG;break;
-
- case SVt_PVGV: TAG;
- dbg_printf(("# Found type GV\n"));
- /* Run through all the pieces and push the ones with bits */
- if (GvSV(thing)) {
- av_push(pending_array, (SV *)GvSV(thing));
- }
- if (GvFORM(thing)) {
- av_push(pending_array, (SV *)GvFORM(thing));
- }
- if (GvAV(thing)) {
- av_push(pending_array, (SV *)GvAV(thing));
- }
- if (GvHV(thing)) {
- av_push(pending_array, (SV *)GvHV(thing));
- }
- if (GvCV(thing)) {
- av_push(pending_array, (SV *)GvCV(thing));
- }
- TAG;break;
- default:
- TAG;break;
- }
- }
-
- size = thing_size(thing, tv);
- RETVAL += size;
- } else {
- /* check_new() returned false: */
-#ifdef DEVEL_SIZE_DEBUGGING
- if (SvOK(sv)) printf("# Ignore ref copy 0x%x\n", sv);
- else printf("# Ignore non-sv 0x%x\n", sv);
+ struct state *st = new_state(aTHX);
+ dNPathNodes(3, NULL);
+
+ st->min_recurse_threshold = NO_RECURSION; /* so always recurse */
+
+ NPathPushNode("perl_size", NPtype_NAME); /* provide a root node */
+ /* start with PL_defstash to get everything reachable from \%main:: */
+ sv_size(aTHX_ st, NPathLink("PL_defstash"), (SV*)PL_defstash, TOTAL_SIZE_RECURSION);
+
+ NPathPushNode("others", NPtype_NAME); /* group these (typically much smaller) items */
+ sv_size(aTHX_ st, NPathLink("PL_defgv"), (SV*)PL_defgv, TOTAL_SIZE_RECURSION);
+ sv_size(aTHX_ st, NPathLink("PL_incgv"), (SV*)PL_incgv, TOTAL_SIZE_RECURSION);
+ sv_size(aTHX_ st, NPathLink("PL_rs"), (SV*)PL_rs, TOTAL_SIZE_RECURSION);
+ sv_size(aTHX_ st, NPathLink("PL_fdpid"), (SV*)PL_fdpid, TOTAL_SIZE_RECURSION);
+ sv_size(aTHX_ st, NPathLink("PL_modglobal"), (SV*)PL_modglobal, TOTAL_SIZE_RECURSION);
+ sv_size(aTHX_ st, NPathLink("PL_errors"), (SV*)PL_errors, TOTAL_SIZE_RECURSION);
+ sv_size(aTHX_ st, NPathLink("PL_stashcache"), (SV*)PL_stashcache, TOTAL_SIZE_RECURSION);
+ sv_size(aTHX_ st, NPathLink("PL_patchlevel"), (SV*)PL_patchlevel, TOTAL_SIZE_RECURSION);
+ sv_size(aTHX_ st, NPathLink("PL_apiversion"), (SV*)PL_apiversion, TOTAL_SIZE_RECURSION);
+ sv_size(aTHX_ st, NPathLink("PL_registered_mros"), (SV*)PL_registered_mros, TOTAL_SIZE_RECURSION);
+#ifdef USE_ITHREADS
+ sv_size(aTHX_ st, NPathLink("PL_regex_padav"), (SV*)PL_regex_padav, TOTAL_SIZE_RECURSION);
#endif
+ sv_size(aTHX_ st, NPathLink("PL_warnhook"), (SV*)PL_warnhook, TOTAL_SIZE_RECURSION);
+ sv_size(aTHX_ st, NPathLink("PL_diehook"), (SV*)PL_diehook, TOTAL_SIZE_RECURSION);
+ sv_size(aTHX_ st, NPathLink("PL_endav"), (SV*)PL_endav, TOTAL_SIZE_RECURSION);
+ sv_size(aTHX_ st, NPathLink("PL_main_cv"), (SV*)PL_main_cv, TOTAL_SIZE_RECURSION);
+ sv_size(aTHX_ st, NPathLink("PL_main_root"), (SV*)PL_main_root, TOTAL_SIZE_RECURSION);
+ sv_size(aTHX_ st, NPathLink("PL_main_start"), (SV*)PL_main_start, TOTAL_SIZE_RECURSION);
+ /* TODO PL_pidstatus */
+ /* TODO PL_stashpad */
+ /* TODO PL_compiling? COP */
+
+ /* TODO stacks: cur, main, tmps, mark, scope, save */
+ /* TODO PL_exitlist */
+ /* TODO PL_reentrant_buffers etc */
+ /* TODO environ */
+ /* TODO PerlIO? PL_known_layers PL_def_layerlist PL_perlio_fd_refcnt etc */
+ /* TODO threads? */
+ /* TODO anything missed? */
+
+ /* --- by this point we should have seen all reachable SVs --- */
+
+ /* in theory we shouldn't have any elements in PL_strtab that haven't been seen yet */
+ sv_size(aTHX_ st, NPathLink("PL_strtab"), (SV*)PL_strtab, TOTAL_SIZE_RECURSION);
+
+ /* unused space in sv head arenas */
+ if (PL_sv_root) {
+ SV *p = PL_sv_root;
+ UV free_heads = 1;
+# define SvARENA_CHAIN(sv) SvANY(sv) /* XXX */
+ while ((p = MUTABLE_SV(SvARENA_CHAIN(p)))) {
+ if (!check_new(st, p)) /* sanity check */
+ warn("Free'd SV head unexpectedly already seen");
+ ++free_heads;
}
- } /* end while */
+ NPathPushNode("unused_sv_heads", NPtype_NAME);
+ ADD_SIZE(st, "sv", free_heads * sizeof(SV));
+ NPathPopNode;
+ }
+ /* XXX iterate over bodies_by_type and crawl the free chains for each */
+
+ /* iterate over all SVs to find any we've not accounted for yet */
+ /* once the code above is visiting all SVs, any found here have been leaked */
+ unseen_sv_size(aTHX_ st, NPathLink("unaccounted"));
+
+ if (1) {
+ struct mstats ms = mstats();
+ NPathSetNode("unused malloc space", NPtype_NAME);
+ ADD_SIZE(st, "bytes_free", ms.bytes_free);
+ ADD_ATTR(st, NPattr_NOTE, "bytes_total", ms.bytes_total);
+ ADD_ATTR(st, NPattr_NOTE, "bytes_used", ms.bytes_used);
+ ADD_ATTR(st, NPattr_NOTE, "chunks_used", ms.chunks_used);
+ ADD_ATTR(st, NPattr_NOTE, "chunks_free", ms.chunks_free);
+ }
- free_tracking(tv);
- SvREFCNT_dec(pending_array);
+ RETVAL = st->total_size;
+ free_state(st);
}
OUTPUT:
RETVAL
-
projects / p5sagit/Devel-Size.git / blobdiff