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authorkosaki <kosaki@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2012-11-26 10:57:39 (GMT)
committerkosaki <kosaki@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2012-11-26 10:57:39 (GMT)
commit6190bb4d8ad7a07ddb1da8fc687b20612743a34a (patch)
tree72600b2de79b50643fde443dd7eb1a6b9a331344 /ruby_atomic.h
parent8c6ad2b0ae9a0d5c2205f4648e5fa0c86fa6077f (diff)
* ruby_atomic.h (ATOMIC_CAS): new macro for compare-and-exchange.
* vm_core.h (struct rb_thread_struct): add interrupt_mask member. * thread.c (thread_create_core, Init_Thread): initialize th->thread_mask. * vm_core.h (RUBY_VM_INTERRUPTED_ANY): new macro for avoiding bare th->interrupt_flag. * vm_core.h (RUBY_VM_INTERRUPTED, RUBY_VM_INTERRUPTED): check th->interrupt_mask. * thread.c (set_unblock_function, rb_thread_schedule): replace th->interrupt_flag with RUBY_VM_INTERRUPTED_ANY() * signal.c (signal_exec): set up thread->interrupt_mask for preventing recursive trap handler. * vm_core.h (RUBY_VM_CHECK_INTS, RUBY_VM_CHECK_INTS_BLOCKING): ditto. * thread.c (rb_threadptr_execute_interrupts): don't process interrupt if it is masked. [Bug #6009] [ruby-core:42524] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37861 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'ruby_atomic.h')
-rw-r--r--ruby_atomic.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/ruby_atomic.h b/ruby_atomic.h
index f4dd5db..dd23964 100644
--- a/ruby_atomic.h
+++ b/ruby_atomic.h
@@ -13,6 +13,7 @@ typedef unsigned int rb_atomic_t; /* Anything OK */
# 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_CAS(var, oldval, newval) __sync_val_compare_and_swap(&(var), (oldval), (newval))
# define ATOMIC_SIZE_ADD(var, val) __sync_fetch_and_add(&(var), (val))
# define ATOMIC_SIZE_SUB(var, val) __sync_fetch_and_sub(&(var), (val))
@@ -48,7 +49,7 @@ rb_w32_atomic_or(volatile rb_atomic_t *var, rb_atomic_t val)
# define ATOMIC_OR(var, val) _InterlockedOr(&(var), (val))
#endif
# define ATOMIC_EXCHANGE(var, val) InterlockedExchange(&(var), (val))
-
+# define ATOMIC_CAS(var, oldval, newval) InterlockedCompareExchange(&(var), (newval), (oldval))
# ifdef _M_AMD64
# define ATOMIC_SIZE_ADD(var, val) InterlockedExchangeAdd64(&(var), (val))
# define ATOMIC_SIZE_SUB(var, val) InterlockedExchangeAdd64(&(var), -(val))