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mdbx: reset returning-by-pointer result on error.

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Change-Id: I5e0aa1eae343dc9acc36a95e4f7e11104efc83ce
This commit is contained in:
Leonid Yuriev 2019-09-14 18:48:07 +03:00
parent 5f22a5568d
commit 4022110955
1 changed files with 9 additions and 3 deletions
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12
src/elements/core.c
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@ -3616,10 +3616,12 @@ int mdbx_txn_begin(MDBX_env *env, MDBX_txn *parent, unsigned flags,
int rc; int rc;
unsigned size, tsize; unsigned size, tsize;
if (unlikely(!env || !ret)) if (unlikely(!ret))
return MDBX_EINVAL; return MDBX_EINVAL;
*ret = NULL; *ret = NULL;
if (unlikely(!env))
return MDBX_EINVAL;
if (unlikely(env->me_signature != MDBX_ME_SIGNATURE)) if (unlikely(env->me_signature != MDBX_ME_SIGNATURE))
return MDBX_EBADSIGN; return MDBX_EBADSIGN;
@ -9993,7 +9995,11 @@ static int mdbx_cursor_init(MDBX_cursor *mc, MDBX_txn *txn, MDBX_dbi dbi) {
} }
int mdbx_cursor_open(MDBX_txn *txn, MDBX_dbi dbi, MDBX_cursor **ret) { int mdbx_cursor_open(MDBX_txn *txn, MDBX_dbi dbi, MDBX_cursor **ret) {
if (unlikely(!ret || !txn)) if (unlikely(!ret))
return MDBX_EINVAL;
*ret = NULL;
if (unlikely(!txn))
return MDBX_EINVAL; return MDBX_EINVAL;
if (unlikely(txn->mt_signature != MDBX_MT_SIGNATURE)) if (unlikely(txn->mt_signature != MDBX_MT_SIGNATURE))