diff options
Diffstat (limited to 'include/keycache.h')
| -rw-r--r-- | include/keycache.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/keycache.h b/include/keycache.h index 340ab881fee..b882f3127f5 100644 --- a/include/keycache.h +++ b/include/keycache.h @@ -45,6 +45,8 @@ typedef struct st_keycache_wqueue typedef struct st_key_cache { my_bool key_cache_inited; + my_bool resize_in_flush; /* true during flush of resize operation */ + my_bool can_be_used; /* usage of cache for read/write is allowed */ uint key_cache_shift; ulong key_cache_mem_size; /* specified size of the cache memory */ uint key_cache_block_size; /* size of the page buffer of a cache block */ @@ -58,6 +60,7 @@ typedef struct st_key_cache ulong blocks_used; /* number of currently used blocks */ ulong blocks_changed; /* number of currently dirty blocks */ ulong warm_blocks; /* number of blocks in warm sub-chain */ + ulong cnt_for_resize_op; /* counter to block resize operation */ long blocks_available; /* number of blocks available in the LRU chain */ HASH_LINK **hash_root; /* arr. of entries into hash table buckets */ HASH_LINK *hash_link_root; /* memory for hash table links */ @@ -67,6 +70,7 @@ typedef struct st_key_cache BLOCK_LINK *used_last; /* ptr to the last block of the LRU chain */ BLOCK_LINK *used_ins; /* ptr to the insertion block in LRU chain */ pthread_mutex_t cache_lock; /* to lock access to the cache structure */ + KEYCACHE_WQUEUE resize_queue; /* threads waiting during resize operation */ KEYCACHE_WQUEUE waiting_for_hash_link; /* waiting for a free hash link */ KEYCACHE_WQUEUE waiting_for_block; /* requests waiting for a free block */ BLOCK_LINK *changed_blocks[CHANGED_BLOCKS_HASH]; /* hash for dirty file bl.*/ |