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* atomic.h (ATOMIC_INC, ATOMIC_DEC): return old values.

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[ruby-dev:44596] [Bug #5439]
* signal.c (ruby_atomic_exchange): no needs to define on the
  platforms where atomic.h is available.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@33464 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2011-10-13 20:58:08 +00:00
parent 5558de40b6
commit c96c193e1d
3 changed files with 12 additions and 3 deletions
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8
ChangeLog
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@ -1,3 +1,11 @@
Fri Oct 14 05:58:05 2011 Nobuyoshi Nakada <nobu@ruby-lang.org>
* atomic.h (ATOMIC_INC, ATOMIC_DEC): return old values.
[ruby-dev:44596] [Bug #5439]
* signal.c (ruby_atomic_exchange): no needs to define on the
platforms where atomic.h is available.
Thu Oct 13 19:29:40 2011 Naohisa Goto <ngotogenome@gmail.com>
* atomic.h (ATOMIC_*): use atomic_ops(3C) when SunStudio on Solaris.

5
atomic.h
View file

@ -54,11 +54,12 @@ typedef unsigned int rb_atomic_t;
#else
typedef int rb_atomic_t;
#define NEED_RUBY_ATOMIC_EXCHANGE
extern rb_atomic_t ruby_atomic_exchange(rb_atomic_t *ptr, rb_atomic_t val);
# define ATOMIC_SET(var, val) (void)((var) = (val))
# define ATOMIC_INC(var) (++(var))
# define ATOMIC_DEC(var) (--(var))
# define ATOMIC_INC(var) ((var)++)
# define ATOMIC_DEC(var) ((var)--)
# define ATOMIC_OR(var, val) ((var) |= (val))
# define ATOMIC_EXCHANGE(var, val) ruby_atomic_exchange(&(var), (val))
#endif

2
signal.c
View file

@ -18,7 +18,7 @@
#include <errno.h>
#include "atomic.h"
#if !defined(_WIN32) && !defined(HAVE_GCC_ATOMIC_BUILTINS)
#ifdef NEED_RUBY_ATOMIC_EXCHANGE
rb_atomic_t
ruby_atomic_exchange(rb_atomic_t *ptr, rb_atomic_t val)
{