*/
/*
- * "'The Chamber of Records,' said Gimli. 'I guess that is where we now stand.'"
+ * 'The Chamber of Records,' said Gimli. 'I guess that is where we now stand.'
+ *
+ * [p.321 of _The Lord of the Rings_, II/v: "The Bridge of Khazad-Dûm"]
*/
/* This file contains Perl's own implementation of the malloc library.
static void morecore (register int bucket);
# if defined(DEBUGGING)
-static void botch (char *diag, char *s, char *file, int line);
+static void botch (const char *diag, const char *s, const char *file, int line);
# endif
static void add_to_chain (void *p, MEM_SIZE size, MEM_SIZE chip);
static void* get_from_chain (MEM_SIZE size);
#endif /* defined PERL_EMERGENCY_SBRK */
static void
-write2(char *mess)
+write2(const char *mess)
{
write(2, mess, strlen(mess));
}
#define ASSERT(p,diag) if (!(p)) botch(diag,STRINGIFY(p),__FILE__,__LINE__);
static void
-botch(char *diag, char *s, char *file, int line)
+botch(const char *diag, const char *s, const char *file, int line)
{
dVAR;
+ dTHX;
if (!(PERL_MAYBE_ALIVE && PERL_GET_THX))
goto do_write;
else {
- dTHX;
if (PerlIO_printf(PerlIO_stderr(),
"assertion botched (%s?): %s %s:%d\n",
diag, s, file, line) != 0) {
# define FILLCHECK_DEADBEEF(s, n) ((void)0)
#endif
-Malloc_t
-Perl_malloc(register size_t nbytes)
+int
+S_ajust_size_and_find_bucket(size_t *nbytes_p)
{
- dVAR;
- register union overhead *p;
- register int bucket;
- register MEM_SIZE shiftr;
-
-#if defined(DEBUGGING) || defined(RCHECK)
- MEM_SIZE size = nbytes;
-#endif
-
- BARK_64K_LIMIT("Allocation",nbytes,nbytes);
-#ifdef DEBUGGING
- if ((long)nbytes < 0)
- croak("%s", "panic: malloc");
-#endif
+ MEM_SIZE shiftr;
+ int bucket;
+ size_t nbytes = *nbytes_p;
/*
* Convert amount of memory requested into
while (shiftr >>= 1)
bucket += BUCKETS_PER_POW2;
}
+ *nbytes_p = nbytes;
+ return bucket;
+}
+
+Malloc_t
+Perl_malloc(size_t nbytes)
+{
+ dVAR;
+ register union overhead *p;
+ register int bucket;
+
+#if defined(DEBUGGING) || defined(RCHECK)
+ MEM_SIZE size = nbytes;
+#endif
+
+ BARK_64K_LIMIT("Allocation",nbytes,nbytes);
+#ifdef DEBUGGING
+ if ((long)nbytes < 0)
+ croak("%s", "panic: malloc");
+#endif
+
+ bucket = S_ajust_size_and_find_bucket(&nbytes);
MALLOC_LOCK;
/*
* If nothing in hash bucket right now,
nmalloc[bucket]--;
nmalloc[pow * BUCKETS_PER_POW2]++;
#endif
+ if (pow * BUCKETS_PER_POW2 > (MEM_SIZE)max_bucket)
+ max_bucket = pow * BUCKETS_PER_POW2;
*(cp - M_OVERHEAD) = pow * BUCKETS_PER_POW2; /* Fill index. */
MALLOC_UNLOCK;
goto inplace_label;
return BUCKET_SIZE_REAL(bucket);
}
+
+MEM_SIZE
+Perl_malloc_good_size(size_t wanted)
+{
+ return BUCKET_SIZE_REAL(S_ajust_size_and_find_bucket(&wanted));
+}
+
# ifdef BUCKETS_ROOT2
# define MIN_EVEN_REPORT 6
# else
buf->bucket_available_size[i] = BUCKET_SIZE_REAL(i);
}
}
+#else /* defined DEBUGGING_MSTATS */
+ PerlIO_printf(Perl_error_log, "perl not compiled with DEBUGGING_MSTATS\n");
#endif /* defined DEBUGGING_MSTATS */
return 0; /* XXX unused */
}
* frees for each size category.
*/
void
-Perl_dump_mstats(pTHX_ char *s)
+Perl_dump_mstats(pTHX_ const char *s)
{
#ifdef DEBUGGING_MSTATS
register int i;
buffer.total_sbrk, buffer.sbrks, buffer.sbrk_good,
buffer.sbrk_slack, buffer.start_slack,
buffer.total_chain, buffer.sbrked_remains);
+#else /* DEBUGGING_MSTATS */
+ PerlIO_printf(Perl_error_log, "%s: perl not compiled with DEBUGGING_MSTATS\n",s);
#endif /* DEBUGGING_MSTATS */
}