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mdbx: проверка атомарности C11-операций c 32/64-битными данными.

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Леонид Юрьев (Leonid Yuriev) 2022-10-10 19:15:17 +03:00
parent e46ca81abd
commit 22a84d656b
1 changed files with 13 additions and 0 deletions
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13
src/core.c
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@ -11791,6 +11791,19 @@ __cold int mdbx_env_create(MDBX_env **penv) {
return MDBX_EINVAL; return MDBX_EINVAL;
*penv = nullptr; *penv = nullptr;
#ifdef MDBX_HAVE_C11ATOMICS
if (unlikely(!atomic_is_lock_free((const volatile uint32_t *)penv))) {
ERROR("lock-free atomic ops for %u-bit types is required", 32);
return MDBX_INCOMPATIBLE;
}
#if MDBX_64BIT_ATOMIC
if (unlikely(!atomic_is_lock_free((const volatile uint64_t *)penv))) {
ERROR("lock-free atomic ops for %u-bit types is required", 64);
return MDBX_INCOMPATIBLE;
}
#endif /* MDBX_64BIT_ATOMIC */
#endif /* MDBX_HAVE_C11ATOMICS */
const size_t os_psize = osal_syspagesize(); const size_t os_psize = osal_syspagesize();
if (unlikely(!is_powerof2(os_psize) || os_psize < MIN_PAGESIZE)) { if (unlikely(!is_powerof2(os_psize) || os_psize < MIN_PAGESIZE)) {
ERROR("unsuitable system pagesize %" PRIuPTR, os_psize); ERROR("unsuitable system pagesize %" PRIuPTR, os_psize);