diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/include/port/atomics/generic.h | 72 |
1 files changed, 24 insertions, 48 deletions
diff --git a/src/include/port/atomics/generic.h b/src/include/port/atomics/generic.h index 424543604ab..75ffaf6e874 100644 --- a/src/include/port/atomics/generic.h +++ b/src/include/port/atomics/generic.h @@ -170,12 +170,9 @@ static inline uint32 pg_atomic_exchange_u32_impl(volatile pg_atomic_uint32 *ptr, uint32 xchg_) { uint32 old; - while (true) - { - old = pg_atomic_read_u32_impl(ptr); - if (pg_atomic_compare_exchange_u32_impl(ptr, &old, xchg_)) - break; - } + old = pg_atomic_read_u32_impl(ptr); + while (!pg_atomic_compare_exchange_u32_impl(ptr, &old, xchg_)) + /* skip */; return old; } #endif @@ -186,12 +183,9 @@ static inline uint32 pg_atomic_fetch_add_u32_impl(volatile pg_atomic_uint32 *ptr, int32 add_) { uint32 old; - while (true) - { - old = pg_atomic_read_u32_impl(ptr); - if (pg_atomic_compare_exchange_u32_impl(ptr, &old, old + add_)) - break; - } + old = pg_atomic_read_u32_impl(ptr); + while (!pg_atomic_compare_exchange_u32_impl(ptr, &old, old + add_)) + /* skip */; return old; } #endif @@ -211,12 +205,9 @@ static inline uint32 pg_atomic_fetch_and_u32_impl(volatile pg_atomic_uint32 *ptr, uint32 and_) { uint32 old; - while (true) - { - old = pg_atomic_read_u32_impl(ptr); - if (pg_atomic_compare_exchange_u32_impl(ptr, &old, old & and_)) - break; - } + old = pg_atomic_read_u32_impl(ptr); + while (!pg_atomic_compare_exchange_u32_impl(ptr, &old, old & and_)) + /* skip */; return old; } #endif @@ -227,12 +218,9 @@ static inline uint32 pg_atomic_fetch_or_u32_impl(volatile pg_atomic_uint32 *ptr, uint32 or_) { uint32 old; - while (true) - { - old = pg_atomic_read_u32_impl(ptr); - if (pg_atomic_compare_exchange_u32_impl(ptr, &old, old | or_)) - break; - } + old = pg_atomic_read_u32_impl(ptr); + while (!pg_atomic_compare_exchange_u32_impl(ptr, &old, old | or_)) + /* skip */; return old; } #endif @@ -261,12 +249,9 @@ static inline uint64 pg_atomic_exchange_u64_impl(volatile pg_atomic_uint64 *ptr, uint64 xchg_) { uint64 old; - while (true) - { - old = ptr->value; - if (pg_atomic_compare_exchange_u64_impl(ptr, &old, xchg_)) - break; - } + old = ptr->value; + while (!pg_atomic_compare_exchange_u64_impl(ptr, &old, xchg_)) + /* skip */; return old; } #endif @@ -357,12 +342,9 @@ static inline uint64 pg_atomic_fetch_add_u64_impl(volatile pg_atomic_uint64 *ptr, int64 add_) { uint64 old; - while (true) - { - old = pg_atomic_read_u64_impl(ptr); - if (pg_atomic_compare_exchange_u64_impl(ptr, &old, old + add_)) - break; - } + old = pg_atomic_read_u64_impl(ptr); + while (!pg_atomic_compare_exchange_u64_impl(ptr, &old, old + add_)) + /* skip */; return old; } #endif @@ -382,12 +364,9 @@ static inline uint64 pg_atomic_fetch_and_u64_impl(volatile pg_atomic_uint64 *ptr, uint64 and_) { uint64 old; - while (true) - { - old = pg_atomic_read_u64_impl(ptr); - if (pg_atomic_compare_exchange_u64_impl(ptr, &old, old & and_)) - break; - } + old = pg_atomic_read_u64_impl(ptr); + while (!pg_atomic_compare_exchange_u64_impl(ptr, &old, old & and_)) + /* skip */; return old; } #endif @@ -398,12 +377,9 @@ static inline uint64 pg_atomic_fetch_or_u64_impl(volatile pg_atomic_uint64 *ptr, uint64 or_) { uint64 old; - while (true) - { - old = pg_atomic_read_u64_impl(ptr); - if (pg_atomic_compare_exchange_u64_impl(ptr, &old, old | or_)) - break; - } + old = pg_atomic_read_u64_impl(ptr); + while (!pg_atomic_compare_exchange_u64_impl(ptr, &old, old | or_)) + /* skip */; return old; } #endif |