ISAR/libmdbx
3
0
Fork 0
mirror of https://github.com/isar/libmdbx.git synced 2025-08-25 21:54:28 +08:00
Code Issues Packages Projects Releases Wiki Activity

mdbx: добавление MDBX_SEEK_AND_GET_MULTIPLE в API операций курсора.

Browse Source
This commit is contained in:
Леонид Юрьев (Leonid Yuriev)
2025-03-09 01:40:31 +03:00
parent b546dc69d2
commit 2ffa5cf371
2 changed files with 24 additions and 30 deletions
Download Patch File Download Diff File Expand all files Collapse all files

38
src/cursor.c
View File

@@ -2049,27 +2049,24 @@ __hot int cursor_ops(MDBX_cursor *mc, MDBX_val *key, MDBX_val *data, const MDBX_
cASSERT(mc, is_poor(mc) && !is_filled(mc));
return rc;
case MDBX_SEEK_AND_GET_MULTIPLE:
if (unlikely(!key))
return MDBX_EINVAL;
rc = cursor_seek(mc, key, data, MDBX_SET).err;
if (unlikely(rc != MDBX_SUCCESS))
return rc;
__fallthrough /* fall through */;
case MDBX_GET_MULTIPLE:
if (unlikely(!data))
return MDBX_EINVAL;
if (unlikely((mc->tree->flags & MDBX_DUPFIXED) == 0))
return MDBX_INCOMPATIBLE;
if (unlikely(!is_pointed(mc))) {
if (unlikely(!key))
return MDBX_EINVAL;
if (unlikely((mc->flags & z_fresh) == 0))
return MDBX_ENODATA;
rc = cursor_seek(mc, key, data, MDBX_SET).err;
if (unlikely(rc != MDBX_SUCCESS))
return rc;
} else {
if (unlikely(!is_filled(mc)))
return MDBX_ENODATA;
if (key) {
const page_t *mp = mc->pg[mc->top];
const node_t *node = page_node(mp, mc->ki[mc->top]);
*key = get_key(node);
}
if (unlikely(!is_filled(mc)))
return MDBX_ENODATA;
if (key) {
const page_t *mp = mc->pg[mc->top];
const node_t *node = page_node(mp, mc->ki[mc->top]);
*key = get_key(node);
}
cASSERT(mc, is_filled(mc));
if (unlikely(!inner_filled(mc))) {
@@ -2104,15 +2101,6 @@ __hot int cursor_ops(MDBX_cursor *mc, MDBX_val *key, MDBX_val *data, const MDBX_
return MDBX_EINVAL;
if (unlikely(mc->subcur == nullptr))
return MDBX_INCOMPATIBLE;
if (unlikely(!is_pointed(mc))) {
if (unlikely((mc->flags & z_fresh) == 0))
return MDBX_ENODATA;
rc = outer_last(mc, key, data);
if (unlikely(rc != MDBX_SUCCESS))
return rc;
mc->subcur->cursor.ki[mc->subcur->cursor.top] = 0;
goto fetch_multiple;
}
if (unlikely(!is_filled(mc) || !inner_filled(mc)))
return MDBX_ENODATA;
rc = cursor_sibling_left(&mc->subcur->cursor);