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mdbx: fix PVS-Studio warnings.

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This commit is contained in:
Leo Yuriev 2017-09-05 20:56:11 +03:00
parent 928014c88a
commit e6e92134a6
1 changed files with 8 additions and 6 deletions
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14
src/mdbx.c
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@ -4188,8 +4188,9 @@ static int mdbx_sync_locked(MDBX_env *env, unsigned flags,
if ((flags & (MDBX_NOSYNC | MDBX_NOMETASYNC)) == 0) {
mdbx_assert(env, ((flags ^ env->me_flags) & MDBX_WRITEMAP) == 0);
if (flags & MDBX_WRITEMAP) {
const size_t offset = (uint8_t *)container_of(head, MDBX_page, mp_meta) -
env->me_dxb_mmap.dxb;
const size_t offset =
((uint8_t *)container_of(head, MDBX_page, mp_meta)) -
env->me_dxb_mmap.dxb;
const size_t paged_offset = offset & ~(env->me_os_psize - 1);
const size_t paged_length = mdbx_roundup2(
env->me_psize + offset - paged_offset, env->me_os_psize);
@ -4852,7 +4853,7 @@ static int __cold mdbx_setup_dxb(MDBX_env *env, int lck_rc) {
head->mm_datasync_sign = MDBX_DATASIGN_WEAK;
head->mm_txnid_b = 0;
const size_t offset =
(uint8_t *)container_of(head, MDBX_page, mp_meta) -
((uint8_t *)container_of(head, MDBX_page, mp_meta)) -
env->me_dxb_mmap.dxb;
const size_t paged_offset = offset & ~(env->me_os_psize - 1);
const size_t paged_length = mdbx_roundup2(
@ -10750,9 +10751,10 @@ int mdbx_txn_straggler(MDBX_txn *txn, int *percent)
MDBX_env *env = txn->mt_env;
if (unlikely((txn->mt_flags & MDBX_RDONLY) == 0)) {
*percent =
(int)((txn->mt_next_pgno * UINT64_C(100) + txn->mt_end_pgno / 2) /
txn->mt_end_pgno);
if (percent)
*percent =
(int)((txn->mt_next_pgno * UINT64_C(100) + txn->mt_end_pgno / 2) /
txn->mt_end_pgno);
return -1;
}