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Removed phony atomic operations for void* and VALUE

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Nobuyoshi Nakada 2020-04-20 21:13:08 +09:00
parent b4c9b570f1
commit e571bb8436
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GPG key ID: 7CD2805BFA3770C6
2 changed files with 11 additions and 35 deletions
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36
ruby_atomic.h
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@ -162,14 +162,7 @@ typedef unsigned int rb_atomic_t;
# if SIZEOF_VOIDP == SIZEOF_SIZE_T
# define ATOMIC_PTR_EXCHANGE(var, val) (void *)ATOMIC_SIZE_EXCHANGE(*(size_t *)&(var), (size_t)(val))
# else
# define ATOMIC_PTR_EXCHANGE(var, val) ruby_atomic_ptr_exchange((const void **)&(var), (val))
static inline void *
ruby_atomic_ptr_exchange(const void **ptr, const void *val)
{
const void *const old = *ptr;
*ptr = val;
return (void *)old;
}
# error No atomic exchange for void*
# endif
#endif
@ -177,14 +170,7 @@ ruby_atomic_ptr_exchange(const void **ptr, const void *val)
# if SIZEOF_VOIDP == SIZEOF_SIZE_T
# define ATOMIC_PTR_CAS(var, oldval, val) (void *)ATOMIC_SIZE_CAS(*(size_t *)&(var), (size_t)(oldval), (size_t)(val))
# else
# define ATOMIC_PTR_CAS(var, oldval, val) ruby_atomic_ptr_cas(&(var), (oldval), (val))
static inline void *
ruby_atomic_ptr_cas(const void **ptr, const void *oldval, const void *val)
{
const void *const old = *ptr;
if (old == oldval) *ptr = val;
return (void *)old;
}
# error No atomic compare-and-set for void*
# endif
#endif
@ -192,14 +178,7 @@ ruby_atomic_ptr_cas(const void **ptr, const void *oldval, const void *val)
# if SIZEOF_VALUE == SIZEOF_SIZE_T
# define ATOMIC_VALUE_EXCHANGE(var, val) ATOMIC_SIZE_EXCHANGE(*(size_t *)&(var), (size_t)(val))
# else
# define ATOMIC_VALUE_EXCHANGE(var, val) ruby_atomic_value_exchange(&(var), (val))
static inline VALUE
ruby_atomic_value_exchange(VALUE *ptr, VALUE val)
{
const VALUE old = *ptr;
*ptr = val;
return old;
}
# error No atomic exchange for VALUE
# endif
#endif
@ -207,14 +186,7 @@ ruby_atomic_value_exchange(VALUE *ptr, VALUE val)
# if SIZEOF_VALUE == SIZEOF_SIZE_T
# define ATOMIC_VALUE_CAS(var, oldval, val) ATOMIC_SIZE_CAS(*(size_t *)&(var), (size_t)(oldval), (size_t)(val))
# else
# define ATOMIC_VALUE_CAS(var, oldval, val) ruby_atomic_value_cas(&(var), (oldval), (val))
static inline VALUE
ruby_atomic_value_cas(VALUE *ptr, VALUE oldval, VALUE val)
{
const VALUE old = *ptr;
if (old == oldval) *ptr = val;
return old;
}
# error No atomic compare-and-set for VALUE
# endif
#endif