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* string.c (sym_to_proc): caches Symbol procs, based on a patch from

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Shumpei Akai <admin AT flexfrank.net>.  [ruby-dev:37265]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@20521 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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nobu 2008-12-04 15:17:21 +00:00
parent bec3fed135
commit f149326740
2 changed files with 30 additions and 2 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
Fri Dec 5 00:17:18 2008 Nobuyoshi Nakada <nobu@ruby-lang.org>
* string.c (sym_to_proc): caches Symbol procs, based on a patch from
Shumpei Akai <admin AT flexfrank.net>. [ruby-dev:37265]
Thu Dec 4 23:29:34 2008 NAKAMURA Usaku <usa@ruby-lang.org> Thu Dec 4 23:29:34 2008 NAKAMURA Usaku <usa@ruby-lang.org>
* win32/win32.c (waitpid): fix bug of checking child slot. * win32/win32.c (waitpid): fix bug of checking child slot.

27
string.c
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@ -6915,9 +6915,32 @@ sym_call(VALUE args, VALUE sym, int argc, VALUE *argv)
static VALUE static VALUE
sym_to_proc(VALUE sym) sym_to_proc(VALUE sym)
{ {
return rb_proc_new(sym_call, (VALUE)SYM2ID(sym)); static VALUE sym_proc_cache = Qfalse;
} enum {SYM_PROC_CACHE_SIZE = 67};
VALUE proc;
long id, index;
VALUE *aryp;
if (!sym_proc_cache) {
rb_gc_register_mark_object(sym_proc_cache);
sym_proc_cache = rb_ary_new2(SYM_PROC_CACHE_SIZE * 2);
rb_ary_store(sym_proc_cache, SYM_PROC_CACHE_SIZE*2 - 1, Qnil);
}
id = SYM2ID(sym);
index = (id % SYM_PROC_CACHE_SIZE) << 1;
aryp = RARRAY_PTR(sym_proc_cache);
if (aryp[index] == sym) {
return aryp[index + 1];
}
else {
proc = rb_proc_new(sym_call, (VALUE)id);
aryp[index] = sym;
aryp[index + 1] = proc;
return proc;
}
}
static VALUE static VALUE
sym_succ(VALUE sym) sym_succ(VALUE sym)