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mdbx: добавление UUID для идентификации БД.

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Леонид Юрьев (Leonid Yuriev)
2024-07-06 10:46:42 +03:00
parent 319753661a
commit fe31958d46
13 changed files with 246 additions and 72 deletions
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14
src/api-env.c
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@@ -727,6 +727,7 @@ static int env_info_snap(const MDBX_env *env, const MDBX_txn *txn,
troika_t *const troika) {
const size_t size_before_bootid = offsetof(MDBX_envinfo, mi_bootid);
const size_t size_before_pgop_stat = offsetof(MDBX_envinfo, mi_pgop_stat);
const size_t size_before_dxbid = offsetof(MDBX_envinfo, mi_dxbid);
if (unlikely(env->flags & ENV_FATAL_ERROR))
return MDBX_PANIC;
@@ -773,6 +774,8 @@ static int env_info_snap(const MDBX_env *env, const MDBX_txn *txn,
memcpy(&out->mi_bootid.meta[0], &meta0->bootid, 16);
memcpy(&out->mi_bootid.meta[1], &meta1->bootid, 16);
memcpy(&out->mi_bootid.meta[2], &meta2->bootid, 16);
if (likely(bytes > size_before_dxbid))
memcpy(&out->mi_dxbid, &meta0->dxbid, 16);
}
const volatile meta_t *txn_meta = head.ptr_v;
@@ -895,8 +898,9 @@ __cold int mdbx_env_info_ex(const MDBX_env *env, const MDBX_txn *txn,
const size_t size_before_bootid = offsetof(MDBX_envinfo, mi_bootid);
const size_t size_before_pgop_stat = offsetof(MDBX_envinfo, mi_pgop_stat);
const size_t size_before_dxbid = offsetof(MDBX_envinfo, mi_dxbid);
if (unlikely(bytes != sizeof(MDBX_envinfo)) && bytes != size_before_bootid &&
bytes != size_before_pgop_stat)
bytes != size_before_pgop_stat && bytes != size_before_dxbid)
return MDBX_EINVAL;
if (txn) {
@@ -938,8 +942,9 @@ __cold int mdbx_preopen_snapinfoW(const wchar_t *pathname, MDBX_envinfo *out,
const size_t size_before_bootid = offsetof(MDBX_envinfo, mi_bootid);
const size_t size_before_pgop_stat = offsetof(MDBX_envinfo, mi_pgop_stat);
const size_t size_before_dxbid = offsetof(MDBX_envinfo, mi_dxbid);
if (unlikely(bytes != sizeof(MDBX_envinfo)) && bytes != size_before_bootid &&
bytes != size_before_pgop_stat)
bytes != size_before_pgop_stat && bytes != size_before_dxbid)
return MDBX_EINVAL;
memset(out, 0, bytes);
@@ -993,8 +998,11 @@ __cold int mdbx_preopen_snapinfoW(const wchar_t *pathname, MDBX_envinfo *out,
const unsigned n = 0;
out->mi_recent_txnid = constmeta_txnid(&header);
out->mi_meta_sign[n] = unaligned_peek_u64(4, &header.sign);
if (likely(bytes > size_before_bootid))
if (likely(bytes > size_before_bootid)) {
memcpy(&out->mi_bootid.meta[n], &header.bootid, 16);
if (likely(bytes > size_before_dxbid))
memcpy(&out->mi_dxbid, &header.dxbid, 16);
}
bailout:
env_close(&env, false);