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mdbx: устранение в cursor_set() повторного сравнения с нулевым элементом на листовой странице.

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Леонид Юрьев (Leonid Yuriev) 2024-03-02 01:06:05 +03:00
parent 4ed05689bc
commit fe498de323
1 changed files with 3 additions and 2 deletions
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5
src/core.c
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@ -16981,8 +16981,9 @@ cursor_set(MDBX_cursor *mc, MDBX_val *key, MDBX_val *data, MDBX_cursor_op op) {
goto got_node;
}
if (cmp < 0) {
if (mc->mc_ki[mc->mc_top] < page_numkeys(mp)) {
/* This is definitely the right page, skip search_page */
/* This is definitely the right page, skip search_page */
if (mc->mc_ki[mc->mc_top] != 0 /* уже проверяли выше */ &&
mc->mc_ki[mc->mc_top] < page_numkeys(mp)) {
if (IS_LEAF2(mp)) {
nodekey.iov_base =
page_leaf2key(mp, mc->mc_ki[mc->mc_top], nodekey.iov_len);