diff options
Diffstat (limited to 'storage/innobase/include/hash0hash.h')
| -rw-r--r-- | storage/innobase/include/hash0hash.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/storage/innobase/include/hash0hash.h b/storage/innobase/include/hash0hash.h index a5cd32d956f..31c5c57ae35 100644 --- a/storage/innobase/include/hash0hash.h +++ b/storage/innobase/include/hash0hash.h @@ -222,6 +222,32 @@ do {\ mem_heap_free_top(hash_get_heap(TABLE, fold111), sizeof(TYPE));\ } while (0) +/******************************************************************** +Move all hash table entries from OLD_TABLE to NEW_TABLE.*/ + +#define HASH_MIGRATE(OLD_TABLE, NEW_TABLE, NODE_TYPE, PTR_NAME, FOLD_FUNC) \ +do {\ + ulint i2222;\ + ulint cell_count2222;\ +\ + cell_count2222 = hash_get_n_cells(OLD_TABLE);\ +\ + for (i2222 = 0; i2222 < cell_count2222; i2222++) {\ + NODE_TYPE* node2222 = HASH_GET_FIRST((OLD_TABLE), i2222);\ +\ + while (node2222) {\ + NODE_TYPE* next2222 = node2222->PTR_NAME;\ + ulint fold2222 = FOLD_FUNC(node2222);\ +\ + HASH_INSERT(NODE_TYPE, PTR_NAME, (NEW_TABLE),\ + fold2222, node2222);\ +\ + node2222 = next2222;\ + }\ + }\ +} while (0) + + /**************************************************************** Gets the mutex index for a fold value in a hash table. */ UNIV_INLINE |