1/*
2 * This file is part of FFmpeg.
3 *
4 * FFmpeg is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
8 *
9 * FFmpeg is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with FFmpeg; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18
19#ifndef COMPAT_ATOMICS_SUNCC_STDATOMIC_H
20#define COMPAT_ATOMICS_SUNCC_STDATOMIC_H
21
22#include <atomic.h>
23#include <mbarrier.h>
24#include <stddef.h>
25#include <stdint.h>
26
27#define ATOMIC_FLAG_INIT 0
28
29#define ATOMIC_VAR_INIT(value) (value)
30
31#define atomic_init(obj, value) \
32do {                            \
33    *(obj) = (value);           \
34} while(0)
35
36#define kill_dependency(y) ((void)0)
37
38#define atomic_thread_fence(order) \
39    __machine_rw_barrier();
40
41#define atomic_signal_fence(order) \
42    ((void)0)
43
44#define atomic_is_lock_free(obj) 0
45
46typedef intptr_t atomic_flag;
47typedef intptr_t atomic_bool;
48typedef intptr_t atomic_char;
49typedef intptr_t atomic_schar;
50typedef intptr_t atomic_uchar;
51typedef intptr_t atomic_short;
52typedef intptr_t atomic_ushort;
53typedef intptr_t atomic_int;
54typedef intptr_t atomic_uint;
55typedef intptr_t atomic_long;
56typedef intptr_t atomic_ulong;
57typedef intptr_t atomic_llong;
58typedef intptr_t atomic_ullong;
59typedef intptr_t atomic_wchar_t;
60typedef intptr_t atomic_int_least8_t;
61typedef intptr_t atomic_uint_least8_t;
62typedef intptr_t atomic_int_least16_t;
63typedef intptr_t atomic_uint_least16_t;
64typedef intptr_t atomic_int_least32_t;
65typedef intptr_t atomic_uint_least32_t;
66typedef intptr_t atomic_int_least64_t;
67typedef intptr_t atomic_uint_least64_t;
68typedef intptr_t atomic_int_fast8_t;
69typedef intptr_t atomic_uint_fast8_t;
70typedef intptr_t atomic_int_fast16_t;
71typedef intptr_t atomic_uint_fast16_t;
72typedef intptr_t atomic_int_fast32_t;
73typedef intptr_t atomic_uint_fast32_t;
74typedef intptr_t atomic_int_fast64_t;
75typedef intptr_t atomic_uint_fast64_t;
76typedef intptr_t atomic_intptr_t;
77typedef intptr_t atomic_uintptr_t;
78typedef intptr_t atomic_size_t;
79typedef intptr_t atomic_ptrdiff_t;
80typedef intptr_t atomic_intmax_t;
81typedef intptr_t atomic_uintmax_t;
82
83static inline void atomic_store(intptr_t *object, intptr_t desired)
84{
85    *object = desired;
86    __machine_rw_barrier();
87}
88
89#define atomic_store_explicit(object, desired, order) \
90    atomic_store(object, desired)
91
92static inline intptr_t atomic_load(intptr_t *object)
93{
94    __machine_rw_barrier();
95    return *object;
96}
97
98#define atomic_load_explicit(object, order) \
99    atomic_load(object)
100
101#define atomic_exchange(object, desired) \
102    atomic_swap_ptr(object, desired)
103
104#define atomic_exchange_explicit(object, desired, order) \
105    atomic_exchange(object, desired)
106
107static inline int atomic_compare_exchange_strong(intptr_t *object, intptr_t *expected,
108                                                 intptr_t desired)
109{
110    intptr_t  old = *expected;
111    *expected = (intptr_t)atomic_cas_ptr(object, (void *)old, (void *)desired);
112    return *expected == old;
113}
114
115#define atomic_compare_exchange_strong_explicit(object, expected, desired, success, failure) \
116    atomic_compare_exchange_strong(object, expected, desired)
117
118#define atomic_compare_exchange_weak(object, expected, desired) \
119    atomic_compare_exchange_strong(object, expected, desired)
120
121#define atomic_compare_exchange_weak_explicit(object, expected, desired, success, failure) \
122    atomic_compare_exchange_weak(object, expected, desired)
123
124static inline intptr_t atomic_fetch_add(intptr_t *object, intptr_t operand)
125{
126    return atomic_add_ptr_nv(object, operand) - operand;
127}
128
129#define atomic_fetch_sub(object, operand) \
130    atomic_fetch_add(object, -(operand))
131
132static inline intptr_t atomic_fetch_or(intptr_t *object, intptr_t operand)
133{
134    intptr_t old;
135    do {
136        old = atomic_load(object);
137    } while (!atomic_compare_exchange_strong(object, old, old | operand));
138    return old;
139}
140
141static inline intptr_t atomic_fetch_xor(intptr_t *object, intptr_t operand)
142{
143    intptr_t old;
144    do {
145        old = atomic_load(object);
146    } while (!atomic_compare_exchange_strong(object, old, old ^ operand));
147    return old;
148}
149
150static inline intptr_t atomic_fetch_and(intptr_t *object, intptr_t operand)
151{
152    intptr_t old;
153    do {
154        old = atomic_load(object);
155    } while (!atomic_compare_exchange_strong(object, old, old & operand));
156    return old;
157}
158
159#define atomic_fetch_add_explicit(object, operand, order) \
160    atomic_fetch_add(object, operand)
161
162#define atomic_fetch_sub_explicit(object, operand, order) \
163    atomic_fetch_sub(object, operand)
164
165#define atomic_fetch_or_explicit(object, operand, order) \
166    atomic_fetch_or(object, operand)
167
168#define atomic_fetch_xor_explicit(object, operand, order) \
169    atomic_fetch_xor(object, operand)
170
171#define atomic_fetch_and_explicit(object, operand, order) \
172    atomic_fetch_and(object, operand)
173
174#define atomic_flag_test_and_set(object) \
175    atomic_exchange(object, 1)
176
177#define atomic_flag_test_and_set_explicit(object, order) \
178    atomic_flag_test_and_set(object)
179
180#define atomic_flag_clear(object) \
181    atomic_store(object, 0)
182
183#define atomic_flag_clear_explicit(object, order) \
184    atomic_flag_clear(object)
185
186#endif /* COMPAT_ATOMICS_SUNCC_STDATOMIC_H */
187