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))
142 ruby_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))
190 ruby_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))
205 ruby_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;