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106 lines
2.7 KiB
C
106 lines
2.7 KiB
C
#ifndef GCC_SYNC_INCLUDED
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#define GCC_SYNC_INCLUDED
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/* Copyright (c) 2008, 2016, Oracle and/or its affiliates. All rights reserved.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
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/* Old GCC __sync builtins introduced in GCC 4.1 */
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static inline int my_atomic_cas32(int32 volatile *a, int32 *cmp, int32 set)
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{
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int32 cmp_val= *cmp;
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int32 sav= __sync_val_compare_and_swap(a, cmp_val, set);
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int ret= (sav == cmp_val);
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if (!ret)
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*cmp = sav;
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return ret;
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}
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static inline int my_atomic_cas64(int64 volatile *a, int64 *cmp, int64 set)
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{
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int64 cmp_val= *cmp;
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int64 sav= __sync_val_compare_and_swap(a, cmp_val, set);
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int ret= (sav == cmp_val);
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if (!ret)
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*cmp = sav;
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return ret;
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}
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static inline int my_atomic_casptr(void * volatile *a, void **cmp, void *set)
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{
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void *cmp_val= *cmp;
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void *sav= __sync_val_compare_and_swap(a, cmp_val, set);
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int ret= (sav == cmp_val);
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if (!ret)
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*cmp = sav;
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return ret;
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}
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static inline int32 my_atomic_add32(int32 volatile *a, int32 v)
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{
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return __sync_fetch_and_add(a, v);
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}
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static inline int64 my_atomic_add64(int64 volatile *a, int64 v)
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{
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return __sync_fetch_and_add(a, v);
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}
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static inline int32 my_atomic_fas32(int32 volatile *a, int32 v)
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{
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return __sync_lock_test_and_set(a, v);
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}
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static inline int64 my_atomic_fas64(int64 volatile *a, int64 v)
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{
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return __sync_lock_test_and_set(a, v);
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}
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static inline void * my_atomic_fasptr(void * volatile *a, void * v)
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{
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return __sync_lock_test_and_set(a, v);
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}
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static inline int32 my_atomic_load32(int32 volatile *a)
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{
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return __sync_fetch_and_or(a, 0);
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}
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static inline int64 my_atomic_load64(int64 volatile *a)
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{
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return __sync_fetch_and_or(a, 0);
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}
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static inline void* my_atomic_loadptr(void * volatile *a)
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{
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return __sync_fetch_and_or(a, 0);
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}
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static inline void my_atomic_store32(int32 volatile *a, int32 v)
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{
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(void) __sync_lock_test_and_set(a, v);
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}
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static inline void my_atomic_store64(int64 volatile *a, int64 v)
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{
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(void) __sync_lock_test_and_set(a, v);
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}
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static inline void my_atomic_storeptr(void * volatile *a, void *v)
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{
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(void) __sync_lock_test_and_set(a, v);
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}
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#endif /* GCC_SYNC_INCLUDED */
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