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atomic.h: prefer GCC atomic builtins

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* atomic.h: prefer GCC atomic builtins than Windows APIs, if possible,
  since they are generic.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36536 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2012-07-25 08:17:08 +00:00
parent 61a67bc720
commit ac64f196f8
2 changed files with 25 additions and 19 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
Wed Jul 25 17:17:05 2012 Nobuyoshi Nakada <nobu@ruby-lang.org>
* atomic.h: prefer GCC atomic builtins than Windows APIs, if possible,
since they are generic.
Wed Jul 25 11:16:57 2012 Eric Hodel <drbrain@segment7.net>
* lib/net/.document: Removed. All files in net/ should be included in

39
atomic.h
View file

@ -1,7 +1,26 @@
#ifndef RUBY_ATOMIC_H
#define RUBY_ATOMIC_H
#ifdef _WIN32
#if 0
#elif defined HAVE_GCC_ATOMIC_BUILTINS
/* @shyouhei hack to support atomic operations in case of gcc. Gcc
* has its own pseudo-insns to support them. See info, or
* http://gcc.gnu.org/onlinedocs/gcc/Atomic-Builtins.html */
typedef unsigned int rb_atomic_t; /* Anything OK */
# define ATOMIC_SET(var, val) (void)__sync_lock_test_and_set(&(var), (val))
# define ATOMIC_INC(var) __sync_fetch_and_add(&(var), 1)
# define ATOMIC_DEC(var) __sync_fetch_and_sub(&(var), 1)
# define ATOMIC_OR(var, val) __sync_or_and_fetch(&(var), (val))
# define ATOMIC_EXCHANGE(var, val) __sync_lock_test_and_set(&(var), (val))
# define ATOMIC_SIZE_ADD(var, val) __sync_fetch_and_add(&(var), (val))
# define ATOMIC_SIZE_SUB(var, val) __sync_fetch_and_sub(&(var), (val))
# define ATOMIC_SIZE_INC(var) __sync_fetch_and_add(&(var), 1)
# define ATOMIC_SIZE_DEC(var) __sync_fetch_and_sub(&(var), 1)
# define ATOMIC_SIZE_EXCHANGE(var, val) __sync_lock_test_and_set(&(var), (val))
#elif defined _WIN32
#if defined _MSC_VER && _MSC_VER > 1200
#pragma intrinsic(_InterlockedOr)
#endif
@ -44,24 +63,6 @@ rb_w32_atomic_or(volatile rb_atomic_t *var, rb_atomic_t val)
# define ATOMIC_SIZE_EXCHANGE(var, val) InterlockedExchange((LONG *)&(var), (val))
# endif
#elif defined HAVE_GCC_ATOMIC_BUILTINS
/* @shyouhei hack to support atomic operations in case of gcc. Gcc
* has its own pseudo-insns to support them. See info, or
* http://gcc.gnu.org/onlinedocs/gcc/Atomic-Builtins.html */
typedef unsigned int rb_atomic_t; /* Anything OK */
# define ATOMIC_SET(var, val) (void)__sync_lock_test_and_set(&(var), (val))
# define ATOMIC_INC(var) __sync_fetch_and_add(&(var), 1)
# define ATOMIC_DEC(var) __sync_fetch_and_sub(&(var), 1)
# define ATOMIC_OR(var, val) __sync_or_and_fetch(&(var), (val))
# define ATOMIC_EXCHANGE(var, val) __sync_lock_test_and_set(&(var), (val))
# define ATOMIC_SIZE_ADD(var, val) __sync_fetch_and_add(&(var), (val))
# define ATOMIC_SIZE_SUB(var, val) __sync_fetch_and_sub(&(var), (val))
# define ATOMIC_SIZE_INC(var) __sync_fetch_and_add(&(var), 1)
# define ATOMIC_SIZE_DEC(var) __sync_fetch_and_sub(&(var), 1)
# define ATOMIC_SIZE_EXCHANGE(var, val) __sync_lock_test_and_set(&(var), (val))
#elif defined(__sun)
#include <atomic.h>
typedef unsigned int rb_atomic_t;