diff options
Diffstat (limited to 'src/include/port/atomics.h')
| -rw-r--r-- | src/include/port/atomics.h | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/src/include/port/atomics.h b/src/include/port/atomics.h index 2e2ec276395..5f3d2662987 100644 --- a/src/include/port/atomics.h +++ b/src/include/port/atomics.h @@ -12,13 +12,14 @@ * * pg_compiler_barrier(), pg_write_barrier(), pg_read_barrier() * * pg_atomic_compare_exchange_u32(), pg_atomic_fetch_add_u32() * * pg_atomic_test_set_flag(), pg_atomic_init_flag(), pg_atomic_clear_flag() + * * PG_HAVE_8BYTE_SINGLE_COPY_ATOMICITY should be defined if appropriate. * * There exist generic, hardware independent, implementations for several * compilers which might be sufficient, although possibly not optimal, for a * new platform. If no such generic implementation is available spinlocks (or * even OS provided semaphores) will be used to implement the API. * - * Implement the _u64 variants if and only if your platform can use them + * Implement _u64 atomics if and only if your platform can use them * efficiently (and obviously correctly). * * Use higher level functionality (lwlocks, spinlocks, heavyweight locks) @@ -110,9 +111,9 @@ /* * Provide a full fallback of the pg_*_barrier(), pg_atomic**_flag and - * pg_atomic_*_u32 APIs for platforms without sufficient spinlock and/or - * atomics support. In the case of spinlock backed atomics the emulation is - * expected to be efficient, although less so than native atomics support. + * pg_atomic_* APIs for platforms without sufficient spinlock and/or atomics + * support. In the case of spinlock backed atomics the emulation is expected + * to be efficient, although less so than native atomics support. */ #include "port/atomics/fallback.h" @@ -421,8 +422,6 @@ pg_atomic_sub_fetch_u32(volatile pg_atomic_uint32 *ptr, int32 sub_) * documentation. * ---- */ -#ifdef PG_HAVE_ATOMIC_U64_SUPPORT - static inline void pg_atomic_init_u64(volatile pg_atomic_uint64 *ptr, uint64 val) { @@ -506,8 +505,6 @@ pg_atomic_sub_fetch_u64(volatile pg_atomic_uint64 *ptr, int64 sub_) return pg_atomic_sub_fetch_u64_impl(ptr, sub_); } -#endif /* PG_HAVE_64_BIT_ATOMICS */ - #undef INSIDE_ATOMICS_H #endif /* ATOMICS_H */ |