diff options
Diffstat (limited to 'storage/xtradb/include/btr0types.h')
| -rw-r--r-- | storage/xtradb/include/btr0types.h | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/storage/xtradb/include/btr0types.h b/storage/xtradb/include/btr0types.h index ef4a6b04b34..07c06fb18d7 100644 --- a/storage/xtradb/include/btr0types.h +++ b/storage/xtradb/include/btr0types.h @@ -38,6 +38,131 @@ typedef struct btr_cur_struct btr_cur_t; /** B-tree search information for the adaptive hash index */ typedef struct btr_search_struct btr_search_t; +#ifdef UNIV_BLOB_DEBUG +# include "buf0types.h" +/** An index->blobs entry for keeping track of off-page column references */ +typedef struct btr_blob_dbg_struct btr_blob_dbg_t; + +/** Insert to index->blobs a reference to an off-page column. +@param index the index tree +@param b the reference +@param ctx context (for logging) */ +UNIV_INTERN +void +btr_blob_dbg_rbt_insert( +/*====================*/ + dict_index_t* index, /*!< in/out: index tree */ + const btr_blob_dbg_t* b, /*!< in: the reference */ + const char* ctx) /*!< in: context (for logging) */ + __attribute__((nonnull)); + +/** Remove from index->blobs a reference to an off-page column. +@param index the index tree +@param b the reference +@param ctx context (for logging) */ +UNIV_INTERN +void +btr_blob_dbg_rbt_delete( +/*====================*/ + dict_index_t* index, /*!< in/out: index tree */ + const btr_blob_dbg_t* b, /*!< in: the reference */ + const char* ctx) /*!< in: context (for logging) */ + __attribute__((nonnull)); + +/**************************************************************//** +Add to index->blobs any references to off-page columns from a record. +@return number of references added */ +UNIV_INTERN +ulint +btr_blob_dbg_add_rec( +/*=================*/ + const rec_t* rec, /*!< in: record */ + dict_index_t* index, /*!< in/out: index */ + const ulint* offsets,/*!< in: offsets */ + const char* ctx) /*!< in: context (for logging) */ + __attribute__((nonnull)); +/**************************************************************//** +Remove from index->blobs any references to off-page columns from a record. +@return number of references removed */ +UNIV_INTERN +ulint +btr_blob_dbg_remove_rec( +/*====================*/ + const rec_t* rec, /*!< in: record */ + dict_index_t* index, /*!< in/out: index */ + const ulint* offsets,/*!< in: offsets */ + const char* ctx) /*!< in: context (for logging) */ + __attribute__((nonnull)); +/**************************************************************//** +Count and add to index->blobs any references to off-page columns +from records on a page. +@return number of references added */ +UNIV_INTERN +ulint +btr_blob_dbg_add( +/*=============*/ + const page_t* page, /*!< in: rewritten page */ + dict_index_t* index, /*!< in/out: index */ + const char* ctx) /*!< in: context (for logging) */ + __attribute__((nonnull)); +/**************************************************************//** +Count and remove from index->blobs any references to off-page columns +from records on a page. +Used when reorganizing a page, before copying the records. +@return number of references removed */ +UNIV_INTERN +ulint +btr_blob_dbg_remove( +/*================*/ + const page_t* page, /*!< in: b-tree page */ + dict_index_t* index, /*!< in/out: index */ + const char* ctx) /*!< in: context (for logging) */ + __attribute__((nonnull)); +/**************************************************************//** +Restore in index->blobs any references to off-page columns +Used when page reorganize fails due to compressed page overflow. */ +UNIV_INTERN +void +btr_blob_dbg_restore( +/*=================*/ + const page_t* npage, /*!< in: page that failed to compress */ + const page_t* page, /*!< in: copy of original page */ + dict_index_t* index, /*!< in/out: index */ + const char* ctx) /*!< in: context (for logging) */ + __attribute__((nonnull)); + +/** Operation that processes the BLOB references of an index record +@param[in] rec record on index page +@param[in/out] index the index tree of the record +@param[in] offsets rec_get_offsets(rec,index) +@param[in] ctx context (for logging) +@return number of BLOB references processed */ +typedef ulint (*btr_blob_dbg_op_f) +(const rec_t* rec,dict_index_t* index,const ulint* offsets,const char* ctx); + +/**************************************************************//** +Count and process all references to off-page columns on a page. +@return number of references processed */ +UNIV_INTERN +ulint +btr_blob_dbg_op( +/*============*/ + const page_t* page, /*!< in: B-tree leaf page */ + const rec_t* rec, /*!< in: record to start from + (NULL to process the whole page) */ + dict_index_t* index, /*!< in/out: index */ + const char* ctx, /*!< in: context (for logging) */ + const btr_blob_dbg_op_f op) /*!< in: operation on records */ + __attribute__((nonnull(1,3,4,5))); +#else /* UNIV_BLOB_DEBUG */ +# define btr_blob_dbg_add_rec(rec, index, offsets, ctx) ((void) 0) +# define btr_blob_dbg_add(page, index, ctx) ((void) 0) +# define btr_blob_dbg_remove_rec(rec, index, offsets, ctx) ((void) 0) +# define btr_blob_dbg_remove(page, index, ctx) ((void) 0) +# define btr_blob_dbg_restore(npage, page, index, ctx) ((void) 0) +# define btr_blob_dbg_op(page, rec, index, ctx, op) ((void) 0) +#endif /* UNIV_BLOB_DEBUG */ + /** The size of a reference to data stored on a different page. The reference is stored at the end of the prefix of the field in the index record. */ |