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mdbx: дополнительный static_assert для контроля выравнивания 64-битного atomic-типа.

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Леонид Юрьев (Leonid Yuriev) 2023-06-08 12:58:11 +03:00
parent ff6674b377
commit 5561cec9c5
1 changed files with 3 additions and 0 deletions
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src/core.c
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@ -835,6 +835,9 @@ atomic_store64(MDBX_atomic_uint64_t *p, const uint64_t value,
enum MDBX_memory_order order) { enum MDBX_memory_order order) {
STATIC_ASSERT(sizeof(MDBX_atomic_uint64_t) == 8); STATIC_ASSERT(sizeof(MDBX_atomic_uint64_t) == 8);
#if MDBX_64BIT_ATOMIC #if MDBX_64BIT_ATOMIC
#if __GNUC_PREREQ(11, 0)
STATIC_ASSERT(__alignof__(MDBX_atomic_uint64_t) >= sizeof(uint64_t));
#endif /* GNU C >= 11 */
#ifdef MDBX_HAVE_C11ATOMICS #ifdef MDBX_HAVE_C11ATOMICS
assert(atomic_is_lock_free(MDBX_c11a_rw(uint64_t, p))); assert(atomic_is_lock_free(MDBX_c11a_rw(uint64_t, p)));
atomic_store_explicit(MDBX_c11a_rw(uint64_t, p), value, mo_c11_store(order)); atomic_store_explicit(MDBX_c11a_rw(uint64_t, p), value, mo_c11_store(order));