diff options
Diffstat (limited to 'crypto/threads_pthread.c')
| -rw-r--r-- | crypto/threads_pthread.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/crypto/threads_pthread.c b/crypto/threads_pthread.c index 69b68e5226..8e411671d9 100644 --- a/crypto/threads_pthread.c +++ b/crypto/threads_pthread.c @@ -919,6 +919,29 @@ int CRYPTO_atomic_load(uint64_t *val, uint64_t *ret, CRYPTO_RWLOCK *lock) return 1; } +int CRYPTO_atomic_store(uint64_t *dst, uint64_t val, CRYPTO_RWLOCK *lock) +{ +# if defined(__GNUC__) && defined(__ATOMIC_ACQUIRE) && !defined(BROKEN_CLANG_ATOMICS) + if (__atomic_is_lock_free(sizeof(*dst), dst)) { + __atomic_store(dst, &val, __ATOMIC_RELEASE); + return 1; + } +# elif defined(__sun) && (defined(__SunOS_5_10) || defined(__SunOS_5_11)) + /* This will work for all future Solaris versions. */ + if (ret != NULL) { + atomic_swap_64(dst, val); + return 1; + } +# endif + if (lock == NULL || !CRYPTO_THREAD_read_lock(lock)) + return 0; + *dst = val; + if (!CRYPTO_THREAD_unlock(lock)) + return 0; + + return 1; +} + int CRYPTO_atomic_load_int(int *val, int *ret, CRYPTO_RWLOCK *lock) { # if defined(__GNUC__) && defined(__ATOMIC_ACQUIRE) && !defined(BROKEN_CLANG_ATOMICS) |