Fix broken link in perldelta added by f83db99040

[perl5.git] / malloc.c

diff --git a/malloc.c b/malloc.c
index e2f97ad..69b6b95 100644 (file)
--- a/malloc.c
+++ b/malloc.c
@@ -253,6 +253,10 @@
 #     define PERL_MAYBE_ALIVE  1
 #endif
 
+#ifndef MYMALLOC
+#  error "MYMALLOC is not defined"
+#endif
+
 #ifndef MUTEX_LOCK
 #  define MUTEX_LOCK(l)
 #endif 
@@ -755,16 +759,7 @@ static const char bucket_of[] =
 #  define POW2_OPTIMIZE_SURPLUS(bucket) 0
 #endif /* !TWO_POT_OPTIMIZE */
 
-#ifdef HAS_64K_LIMIT
-#  define BARK_64K_LIMIT(what,nbytes,size)                             \
-       if (nbytes > 0xffff) {                                          \
-               PerlIO_printf(PerlIO_stderr(),                          \
-                             "%s too large: %lx\n", what, size);       \
-               my_exit(1);                                             \
-       }
-#else /* !HAS_64K_LIMIT */
-#  define BARK_64K_LIMIT(what,nbytes,size)
-#endif /* !HAS_64K_LIMIT */
+#define BARK_64K_LIMIT(what,nbytes,size)
 
 #ifndef MIN_SBRK
 #  define MIN_SBRK 2048
@@ -787,7 +782,7 @@ static const char bucket_of[] =
 #  define SBRK_FAILURE_PRICE 50
 #endif 
 
-static void    morecore        (register int bucket);
+static void    morecore        (int bucket);
 #  if defined(DEBUGGING)
 static void    botch           (const char *diag, const char *s, const char *file, int line);
 #  endif
@@ -1004,27 +999,9 @@ get_emergency_buffer(IV *size)
     return pv;
 }
 
-/* Returns 0 on success, -1 on bad alignment, -2 if not implemented */
-int
-set_emergency_buffer(char *b, IV size)
-{
-    if (PTR2UV(b) & (NEEDED_ALIGNMENT - 1))
-       return -1;
-    if (MallocCfg[MallocCfg_emergency_buffer_prepared_size])
-       add_to_chain((void*)emergency_buffer_prepared,
-                    MallocCfg[MallocCfg_emergency_buffer_prepared_size], 0);
-    emergency_buffer_prepared = b;
-    MallocCfg[MallocCfg_emergency_buffer_prepared_size] = size;
-    return 0;
-}
 #    define GET_EMERGENCY_BUFFER(p)    get_emergency_buffer(p)
 #  else                /* NO_MALLOC_DYNAMIC_CFG */
 #    define GET_EMERGENCY_BUFFER(p)    NULL
-int
-set_emergency_buffer(char *b, IV size)
-{
-    return -1;
-}
 #  endif
 
 static Malloc_t
@@ -1083,7 +1060,7 @@ emergency_sbrk(MEM_SIZE size)
   do_croak:
     MALLOC_UNLOCK;
     emergency_sbrk_croak("Out of memory during request for %"UVuf" bytes, total sbrk() is %"UVuf" bytes", (UV)size, (UV)(goodsbrk + sbrk_slack));
-    assert(0); /* NOTREACHED */
+    NOT_REACHED; /* NOTREACHED */
     return NULL;
 }
 
@@ -1092,7 +1069,7 @@ emergency_sbrk(MEM_SIZE size)
 #endif /* defined PERL_EMERGENCY_SBRK */
 
 /* Don't use PerlIO buffered writes as they allocate memory. */
-#define MYMALLOC_WRITE2STDERR(s) PerlLIO_write(PerlIO_fileno(PerlIO_stderr()),s,strlen(s))
+#define MYMALLOC_WRITE2STDERR(s) PERL_UNUSED_RESULT(PerlLIO_write(PerlIO_fileno(PerlIO_stderr()),s,strlen(s)))
 
 #ifdef DEBUGGING
 #undef ASSERT
@@ -1212,12 +1189,16 @@ cmp_pat_4bytes(unsigned char *s, size_t nbytes, const unsigned char *fill)
 #  define FILLCHECK_DEADBEEF(s, n)     ((void)0)
 #endif
 
-int
-S_ajust_size_and_find_bucket(size_t *nbytes_p)
+STATIC int
+S_adjust_size_and_find_bucket(size_t *nbytes_p)
 {
-       MEM_SIZE shiftr;
+       MEM_SIZE shiftr;
        int bucket;
-       size_t nbytes = *nbytes_p;
+       size_t nbytes;
+
+       PERL_ARGS_ASSERT_ADJUST_SIZE_AND_FIND_BUCKET;
+
+       nbytes = *nbytes_p;
 
        /*
         * Convert amount of memory requested into
@@ -1273,7 +1254,7 @@ Perl_malloc(size_t nbytes)
            croak("%s", "panic: malloc");
 #endif
 
-       bucket = S_ajust_size_and_find_bucket(&nbytes);
+       bucket = adjust_size_and_find_bucket(&nbytes);
        MALLOC_LOCK;
        /*
         * If nothing in hash bucket right now,
@@ -1547,7 +1528,7 @@ getpages(MEM_SIZE needed, int *nblksp, int bucket)
                
        if (add) {
            DEBUG_m(PerlIO_printf(Perl_debug_log, 
-                                 "sbrk(%ld) to fix non-continuous/off-page sbrk:\n\t%ld for alignement,\t%ld were assumed to come from the tail of the previous sbrk\n",
+                                 "sbrk(%ld) to fix non-continuous/off-page sbrk:\n\t%ld for alignment,\t%ld were assumed to come from the tail of the previous sbrk\n",
                                  (long)add, (long) slack,
                                  (long) sbrked_remains));
            newcp = (char *)sbrk(add);
@@ -1675,7 +1656,7 @@ getpages_adjacent(MEM_SIZE require)
  * Allocate more memory to the indicated bucket.
  */
 static void
-morecore(register int bucket)
+morecore(int bucket)
 {
         dVAR;
        union overhead *ovp;
@@ -1847,7 +1828,7 @@ Perl_mfree(Malloc_t where)
                if (bad_free_warn == -1) {
                    dTHX;
                    char *pbf = PerlEnv_getenv("PERL_BADFREE");
-                   bad_free_warn = (pbf) ? atoi(pbf) : 1;
+                   bad_free_warn = (pbf) ? strNE("0", pbf) : 1;
                }
                if (!bad_free_warn)
                    return;
@@ -1945,7 +1926,7 @@ Perl_realloc(void *mp, size_t nbytes)
                if (bad_free_warn == -1) {
                    dTHX;
                    char *pbf = PerlEnv_getenv("PERL_BADFREE");
-                   bad_free_warn = (pbf) ? atoi(pbf) : 1;
+                   bad_free_warn = (pbf) ? strNE("0", pbf) : 1;
                }
                if (!bad_free_warn)
                    return NULL;
@@ -2100,7 +2081,7 @@ Perl_realloc(void *mp, size_t nbytes)
 }
 
 Malloc_t
-Perl_calloc(register size_t elements, register size_t size)
+Perl_calloc(size_t elements, size_t size)
 {
     long sz = elements * size;
     Malloc_t p = Perl_malloc(sz);
@@ -2173,7 +2154,7 @@ Perl_malloced_size(void *p)
 MEM_SIZE
 Perl_malloc_good_size(size_t wanted)
 {
-    return BUCKET_SIZE_REAL(S_ajust_size_and_find_bucket(&wanted));
+    return BUCKET_SIZE_REAL(adjust_size_and_find_bucket(&wanted));
 }
 
 #  ifdef BUCKETS_ROOT2
@@ -2314,7 +2295,7 @@ Perl_dump_mstats(pTHX_ const char *s)
 
 #ifdef USE_PERL_SBRK
 
-#   if defined(NeXT) || defined(__NeXT__) || defined(PURIFY)
+#   if defined(PURIFY)
 #      define PERL_SBRK_VIA_MALLOC
 #   endif
 
@@ -2385,11 +2366,5 @@ Perl_sbrk(int size)
 #endif /* ! defined USE_PERL_SBRK */
 
 /*
- * Local variables:
- * c-indentation-style: bsd
- * c-basic-offset: 4
- * indent-tabs-mode: nil
- * End:
- *
  * ex: set ts=8 sts=4 sw=4 et:
  */