diff options
Diffstat (limited to 'core/safe_refcount.h')
| -rw-r--r-- | core/safe_refcount.h | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/core/safe_refcount.h b/core/safe_refcount.h index 8e23a0cf94..dc4e62354a 100644 --- a/core/safe_refcount.h +++ b/core/safe_refcount.h @@ -43,8 +43,9 @@ template <class T> static _ALWAYS_INLINE_ T atomic_conditional_increment(volatile T *pw) { - if (*pw == 0) + if (*pw == 0) { return 0; + } (*pw)++; @@ -81,8 +82,9 @@ static _ALWAYS_INLINE_ T atomic_add(volatile T *pw, volatile V val) { template <class T, class V> static _ALWAYS_INLINE_ T atomic_exchange_if_greater(volatile T *pw, volatile V val) { - if (val > *pw) + if (val > *pw) { *pw = val; + } return *pw; } @@ -98,10 +100,12 @@ template <class T> static _ALWAYS_INLINE_ T atomic_conditional_increment(volatile T *pw) { while (true) { T tmp = static_cast<T const volatile &>(*pw); - if (tmp == 0) + if (tmp == 0) { return 0; // if zero, can't add to it anymore - if (__sync_val_compare_and_swap(pw, tmp, tmp + 1) == tmp) + } + if (__sync_val_compare_and_swap(pw, tmp, tmp + 1) == tmp) { return tmp + 1; + } } } @@ -129,10 +133,12 @@ template <class T, class V> static _ALWAYS_INLINE_ T atomic_exchange_if_greater(volatile T *pw, volatile V val) { while (true) { T tmp = static_cast<T const volatile &>(*pw); - if (tmp >= val) + if (tmp >= val) { return tmp; // already greater, or equal - if (__sync_val_compare_and_swap(pw, tmp, val) == tmp) + } + if (__sync_val_compare_and_swap(pw, tmp, val) == tmp) { return val; + } } } |