5#elif defined HAVE_GCC_ATOMIC_BUILTINS
7# define ATOMIC_SET(var, val) (void)__atomic_exchange_n(&(var), (val), __ATOMIC_SEQ_CST)
8# define ATOMIC_INC(var) __atomic_fetch_add(&(var), 1, __ATOMIC_SEQ_CST)
9# define ATOMIC_DEC(var) __atomic_fetch_sub(&(var), 1, __ATOMIC_SEQ_CST)
10# define ATOMIC_OR(var, val) __atomic_fetch_or(&(var), (val), __ATOMIC_SEQ_CST)
11# define ATOMIC_EXCHANGE(var, val) __atomic_exchange_n(&(var), (val), __ATOMIC_SEQ_CST)
12# define ATOMIC_CAS(var, oldval, newval) \
13({ __typeof__(var) oldvaldup = (oldval); \
14 __atomic_compare_exchange_n(&(var), &oldvaldup, (newval), 0, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST); \
17# define ATOMIC_SIZE_ADD(var, val) __atomic_fetch_add(&(var), (val), __ATOMIC_SEQ_CST)
18# define ATOMIC_SIZE_SUB(var, val) __atomic_fetch_sub(&(var), (val), __ATOMIC_SEQ_CST)
20# define RUBY_ATOMIC_GENERIC_MACRO 1
22#elif defined HAVE_GCC_SYNC_BUILTINS
28# define ATOMIC_SET(var, val) (void)__sync_lock_test_and_set(&(var), (val))
29# define ATOMIC_INC(var) __sync_fetch_and_add(&(var), 1)
30# define ATOMIC_DEC(var) __sync_fetch_and_sub(&(var), 1)
31# define ATOMIC_OR(var, val) __sync_fetch_and_or(&(var), (val))
32# define ATOMIC_EXCHANGE(var, val) __sync_lock_test_and_set(&(var), (val))
33# define ATOMIC_CAS(var, oldval, newval) __sync_val_compare_and_swap(&(var), (oldval), (newval))
35# define ATOMIC_SIZE_ADD(var, val) __sync_fetch_and_add(&(var), (val))
36# define ATOMIC_SIZE_SUB(var, val) __sync_fetch_and_sub(&(var), (val))
38# define RUBY_ATOMIC_GENERIC_MACRO 1
41#if defined _MSC_VER && _MSC_VER > 1200
42#pragma intrinsic(_InterlockedOr)
46# define ATOMIC_SET(var, val) InterlockedExchange(&(var), (val))
47# define ATOMIC_INC(var) InterlockedIncrement(&(var))
48# define ATOMIC_DEC(var) InterlockedDecrement(&(var))
50# define ATOMIC_OR(var, val) __asm__("lock\n\t" "orl\t%1, %0" : "=m"(var) : "Ir"(val))
51#elif defined _MSC_VER && _MSC_VER <= 1200
52# define ATOMIC_OR(var, val) rb_w32_atomic_or(&(var), (val))
59 __asm lock or [eax], ecx;
61#error unsupported architecture
65# define ATOMIC_OR(var, val) _InterlockedOr(&(var), (val))
67# define ATOMIC_EXCHANGE(var, val) InterlockedExchange(&(var), (val))
68# define ATOMIC_CAS(var, oldval, newval) InterlockedCompareExchange(&(var), (newval), (oldval))
69# if defined _MSC_VER && _MSC_VER <= 1200
73 return (
rb_atomic_t)InterlockedCompareExchange((PVOID *)var, (PVOID)newval, (PVOID)oldval);
76# define ATOMIC_CAS(var, oldval, newval) rb_w32_atomic_cas(&(var), (oldval), (newval))
79# define ATOMIC_SIZE_ADD(var, val) InterlockedExchangeAdd64((LONG_LONG *)&(var), (val))
80# define ATOMIC_SIZE_SUB(var, val) InterlockedExchangeAdd64((LONG_LONG *)&(var), -(LONG)(val))
81# define ATOMIC_SIZE_INC(var) InterlockedIncrement64(&(var))
82# define ATOMIC_SIZE_DEC(var) InterlockedDecrement64(&(var))
83# define ATOMIC_SIZE_EXCHANGE(var, val) InterlockedExchange64(&(var), (val))
84# define ATOMIC_SIZE_CAS(var, oldval, newval) InterlockedCompareExchange64(&(var), (newval), (oldval))
86# define ATOMIC_SIZE_ADD(var, val) InterlockedExchangeAdd((LONG *)&(var), (val))
87# define ATOMIC_SIZE_SUB(var, val) InterlockedExchangeAdd((LONG *)&(var), -(LONG)(val))
88# define ATOMIC_SIZE_INC(var) InterlockedIncrement((LONG *)&(var))
89# define ATOMIC_SIZE_DEC(var) InterlockedDecrement((LONG *)&(var))
90# define ATOMIC_SIZE_EXCHANGE(var, val) InterlockedExchange((LONG *)&(var), (val))
93# ifdef InterlockedExchangePointer
94# define ATOMIC_PTR_EXCHANGE(var, val) InterlockedExchangePointer((PVOID volatile *)&(var), (PVOID)(val))
97#elif defined(__sun) && defined(HAVE_ATOMIC_H)
101# define ATOMIC_SET(var, val) (void)atomic_swap_uint(&(var), (val))
102# define ATOMIC_INC(var) atomic_inc_uint(&(var))
103# define ATOMIC_DEC(var) atomic_dec_uint(&(var))
104# define ATOMIC_OR(var, val) atomic_or_uint(&(var), (val))
105# define ATOMIC_EXCHANGE(var, val) atomic_swap_uint(&(var), (val))
106# define ATOMIC_CAS(var, oldval, newval) atomic_cas_uint(&(var), (oldval), (newval))
108# if SIZEOF_SIZE_T == SIZEOF_LONG
109# define ATOMIC_SIZE_ADD(var, val) atomic_add_long(&(var), (val))
110# define ATOMIC_SIZE_SUB(var, val) atomic_add_long(&(var), -(val))
111# define ATOMIC_SIZE_INC(var) atomic_inc_ulong(&(var))
112# define ATOMIC_SIZE_DEC(var) atomic_dec_ulong(&(var))
113# define ATOMIC_SIZE_EXCHANGE(var, val) atomic_swap_ulong(&(var), (val))
114# define ATOMIC_SIZE_CAS(var, oldval, val) atomic_cas_ulong(&(var), (oldval), (val))
116# define ATOMIC_SIZE_ADD(var, val) atomic_add_int(&(var), (val))
117# define ATOMIC_SIZE_SUB(var, val) atomic_add_int(&(var), -(val))
118# define ATOMIC_SIZE_INC(var) atomic_inc_uint(&(var))
119# define ATOMIC_SIZE_DEC(var) atomic_dec_uint(&(var))
120# define ATOMIC_SIZE_EXCHANGE(var, val) atomic_swap_uint(&(var), (val))
125#define NEED_RUBY_ATOMIC_OPS
131# define ATOMIC_SET(var, val) (void)((var) = (val))
132# define ATOMIC_INC(var) ((var)++)
133# define ATOMIC_DEC(var) ((var)--)
134# define ATOMIC_OR(var, val) ((var) |= (val))
135# define ATOMIC_EXCHANGE(var, val) ruby_atomic_exchange(&(var), (val))
136# define ATOMIC_CAS(var, oldval, newval) ruby_atomic_compare_and_swap(&(var), (oldval), (newval))
138# define ATOMIC_SIZE_ADD(var, val) (void)((var) += (val))
139# define ATOMIC_SIZE_SUB(var, val) (void)((var) -= (val))
140# define ATOMIC_SIZE_EXCHANGE(var, val) ruby_atomic_size_exchange(&(var), (val))
142ruby_atomic_size_exchange(
size_t *
ptr,
size_t val)
150#ifndef ATOMIC_SIZE_INC
151# define ATOMIC_SIZE_INC(var) ATOMIC_INC(var)
154#ifndef ATOMIC_SIZE_DEC
155# define ATOMIC_SIZE_DEC(var) ATOMIC_DEC(var)
158#ifndef ATOMIC_SIZE_EXCHANGE
159# define ATOMIC_SIZE_EXCHANGE(var, val) ATOMIC_EXCHANGE(var, val)
162#ifndef ATOMIC_SIZE_CAS
163# define ATOMIC_SIZE_CAS(var, oldval, val) ATOMIC_CAS(var, oldval, val)
166#if RUBY_ATOMIC_GENERIC_MACRO
167# ifndef ATOMIC_PTR_EXCHANGE
168# define ATOMIC_PTR_EXCHANGE(var, val) ATOMIC_EXCHANGE(var, val)
171# ifndef ATOMIC_PTR_CAS
172# define ATOMIC_PTR_CAS(var, oldval, newval) ATOMIC_CAS(var, oldval, newval)
175# ifndef ATOMIC_VALUE_EXCHANGE
176# define ATOMIC_VALUE_EXCHANGE(var, val) ATOMIC_EXCHANGE(var, val)
179# ifndef ATOMIC_VALUE_CAS
180# define ATOMIC_VALUE_CAS(var, oldval, val) ATOMIC_CAS(var, oldval, val)
184#ifndef ATOMIC_PTR_EXCHANGE
185# if SIZEOF_VOIDP == SIZEOF_SIZE_T
186# define ATOMIC_PTR_EXCHANGE(var, val) (void *)ATOMIC_SIZE_EXCHANGE(*(size_t *)&(var), (size_t)(val))
188# define ATOMIC_PTR_EXCHANGE(var, val) ruby_atomic_ptr_exchange((const void **)&(var), (val))
190ruby_atomic_ptr_exchange(
const void **
ptr,
const void *val)
192 const void *
const old = *
ptr;
199#ifndef ATOMIC_PTR_CAS
200# if SIZEOF_VOIDP == SIZEOF_SIZE_T
201# define ATOMIC_PTR_CAS(var, oldval, val) (void *)ATOMIC_SIZE_CAS(*(size_t *)&(var), (size_t)(oldval), (size_t)(val))
203# define ATOMIC_PTR_CAS(var, oldval, val) ruby_atomic_ptr_cas(&(var), (oldval), (val))
205ruby_atomic_ptr_cas(
const void **
ptr,
const void *oldval,
const void *val)
207 const void *
const old = *
ptr;
208 if (
old == oldval) *
ptr = val;
214#ifndef ATOMIC_VALUE_EXCHANGE
215# if SIZEOF_VALUE == SIZEOF_SIZE_T
216# define ATOMIC_VALUE_EXCHANGE(var, val) ATOMIC_SIZE_EXCHANGE(*(size_t *)&(var), (size_t)(val))
218# define ATOMIC_VALUE_EXCHANGE(var, val) ruby_atomic_value_exchange(&(var), (val))
229#ifndef ATOMIC_VALUE_CAS
230# if SIZEOF_VALUE == SIZEOF_SIZE_T
231# define ATOMIC_VALUE_CAS(var, oldval, val) ATOMIC_SIZE_CAS(*(size_t *)&(var), (size_t)(oldval), (size_t)(val))
233# define ATOMIC_VALUE_CAS(var, oldval, val) ruby_atomic_value_cas(&(var), (oldval), (val))
238 if (
old == oldval) *
ptr = val;
rb_atomic_t ruby_atomic_compare_and_swap(rb_atomic_t *ptr, rb_atomic_t cmp, rb_atomic_t newval)
rb_atomic_t ruby_atomic_exchange(rb_atomic_t *ptr, rb_atomic_t val)