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string.c: size hints for free and realloc calls

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Another part of the plan to reduce dependencies on malloc_usable_size:
https://bugs.ruby-lang.org/issues/10238

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63485 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
normal 2018-05-22 01:13:08 +00:00
parent 1c1ff52f43
commit 0a4be5beda
1 changed files with 13 additions and 8 deletions
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21
string.c
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@ -147,7 +147,8 @@ VALUE rb_cSymbol;
}\
else {\
assert(!FL_TEST((str), STR_SHARED)); \
REALLOC_N(RSTRING(str)->as.heap.ptr, char, (size_t)(capacity) + (termlen));\
SIZED_REALLOC_N(RSTRING(str)->as.heap.ptr, char, \
(size_t)(capacity) + (termlen), STR_HEAP_SIZE(str)); \
RSTRING(str)->as.heap.aux.capa = (capacity);\
}\
} while (0)
@ -1586,7 +1587,8 @@ rb_str_init(int argc, VALUE *argv, VALUE str)
RSTRING(str)->as.heap.ptr = ALLOC_N(char, (size_t)capa + termlen);
}
else if (STR_HEAP_SIZE(str) != (size_t)capa + termlen) {
REALLOC_N(RSTRING(str)->as.heap.ptr, char, (size_t)capa + termlen);
SIZED_REALLOC_N(RSTRING(str)->as.heap.ptr, char,
(size_t)capa + termlen, STR_HEAP_SIZE(str));
}
RSTRING(str)->as.heap.len = len;
TERM_FILL(&RSTRING(str)->as.heap.ptr[len], termlen);
@ -2710,7 +2712,8 @@ rb_str_resize(VALUE str, long len)
}
else if ((capa = RSTRING(str)->as.heap.aux.capa) < len ||
(capa - len) > (len < 1024 ? len : 1024)) {
REALLOC_N(RSTRING(str)->as.heap.ptr, char, (size_t)len + termlen);
SIZED_REALLOC_N(RSTRING(str)->as.heap.ptr, char,
(size_t)len + termlen, STR_HEAP_SIZE(str));
RSTRING(str)->as.heap.aux.capa = len;
}
else if (len == slen) return str;
@ -6482,7 +6485,7 @@ rb_str_casemap(VALUE source, OnigCaseFoldType *flags, rb_encoding *enc)
while (current_buffer) {
previous_buffer = current_buffer;
current_buffer = current_buffer->next;
xfree(previous_buffer);
ruby_sized_xfree(previous_buffer, previous_buffer->capa);
}
rb_raise(rb_eArgError, "input string invalid");
}
@ -6494,7 +6497,7 @@ rb_str_casemap(VALUE source, OnigCaseFoldType *flags, rb_encoding *enc)
if (buffer_count==1) {
target = rb_str_new_with_class(source, (const char*)current_buffer->space, target_length);
xfree(current_buffer);
ruby_sized_xfree(current_buffer, current_buffer->capa);
}
else {
char *target_current;
@ -6508,7 +6511,7 @@ rb_str_casemap(VALUE source, OnigCaseFoldType *flags, rb_encoding *enc)
target_current += current_buffer->used;
previous_buffer = current_buffer;
current_buffer = current_buffer->next;
xfree(previous_buffer);
ruby_sized_xfree(previous_buffer, previous_buffer->capa);
}
}
@ -7032,8 +7035,9 @@ tr_trans(VALUE str, VALUE src, VALUE repl, int sflag)
if (enc != e1) may_modify = 1;
}
if ((offset = t - buf) + tlen > max) {
size_t old = max + termlen;
max = offset + tlen + (send - s);
REALLOC_N(buf, char, max + termlen);
SIZED_REALLOC_N(buf, char, max + termlen, old);
t = buf + offset;
}
rb_enc_mbcput(c, t, enc);
@ -7104,8 +7108,9 @@ tr_trans(VALUE str, VALUE src, VALUE repl, int sflag)
if (enc != e1) may_modify = 1;
}
if ((offset = t - buf) + tlen > max) {
size_t old = max + termlen;
max = offset + tlen + (long)((send - s) * 1.2);
REALLOC_N(buf, char, max + termlen);
SIZED_REALLOC_N(buf, char, max + termlen, old);
t = buf + offset;
}
if (s != t) {