diff options
author | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2011-07-09 07:56:04 +0000 |
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committer | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2011-07-09 07:56:04 +0000 |
commit | 2a8a9d1def49b2673814e2307520fd02f9d536dd (patch) | |
tree | 39f52c1e89e11022d52e2f6e09af47e6ab55de1b /atomic.h | |
parent | 03c618daf0f7a0e668e1f4eb25e5aa139bfb5175 (diff) |
* atomic.h (ATOMIC_OR): _InterlockedOr is unavailable in VC6.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@32472 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'atomic.h')
-rw-r--r-- | atomic.h | 15 |
1 files changed, 14 insertions, 1 deletions
@@ -2,7 +2,7 @@ #define RUBY_ATOMIC_H #ifdef _WIN32 -#ifdef _MSC_VER +#if defined _MSC_VER && _MSC_VER > 1200 #pragma intrinsic(_InterlockedOr) #endif typedef LONG rb_atomic_t; @@ -12,6 +12,19 @@ typedef LONG rb_atomic_t; # define ATOMIC_DEC(var) InterlockedDecrement(&(var)) #if defined __GNUC__ # define ATOMIC_OR(var, val) __asm__("lock\n\t" "orl\t%1, %0" : "=m"(var) : "Ir"(val)) +#elif defined _MSC_VER && _MSC_VER <= 1200 +# define ATOMIC_OR(var, val) rb_w32_atomic_or(&(var), (val)) +static inline void +rb_w32_atomic_or(volatile rb_atomic_t *var, rb_atomic_t val) +{ +#ifdef _M_IX86 + __asm mov eax, var; + __asm mov ecx, val; + __asm lock or [eax], ecx; +#else +#error unsupported architecture +#endif +} #else # define ATOMIC_OR(var, val) _InterlockedOr(&(var), (val)) #endif |