diff options
Diffstat (limited to 'storage/innobase/include/btr0types.h')
| -rw-r--r-- | storage/innobase/include/btr0types.h | 195 |
1 files changed, 41 insertions, 154 deletions
diff --git a/storage/innobase/include/btr0types.h b/storage/innobase/include/btr0types.h index 04b69d8145c..734b33e4221 100644 --- a/storage/innobase/include/btr0types.h +++ b/storage/innobase/include/btr0types.h @@ -31,6 +31,7 @@ Created 2/17/1996 Heikki Tuuri #include "rem0types.h" #include "page0types.h" #include "sync0rw.h" +#include "page0size.h" /** Persistent cursor */ struct btr_pcur_t; @@ -39,165 +40,51 @@ struct btr_cur_t; /** B-tree search information for the adaptive hash index */ struct btr_search_t; -#ifndef UNIV_HOTBACKUP - -/** @brief The latch protecting the adaptive search system - -This latch protects the -(1) hash index; -(2) columns of a record to which we have a pointer in the hash index; - -but does NOT protect: - -(3) next record offset field in a record; -(4) next or previous records on the same page. - -Bear in mind (3) and (4) when using the hash index. -*/ -extern rw_lock_t* btr_search_latch_temp; - -#endif /* UNIV_HOTBACKUP */ - -/** The latch protecting the adaptive search system */ -#define btr_search_latch (*btr_search_latch_temp) - -/** Flag: has the search system been enabled? -Protected by btr_search_latch. */ +/** Is search system enabled. +Search system is protected by array of latches. */ extern char btr_search_enabled; -#ifdef UNIV_BLOB_DEBUG -# include "buf0types.h" -/** An index->blobs entry for keeping track of off-page column references */ -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) */ - MY_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) */ - MY_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) */ - MY_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) */ - MY_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) */ - MY_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) */ - MY_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) */ - MY_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 */ - MY_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 */ +/** Number of adaptive hash index partition. */ +extern ulong btr_ahi_parts; /** 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. */ -#define BTR_EXTERN_FIELD_REF_SIZE 20 - -/** A BLOB field reference full of zero, for use in assertions and tests. -Initially, BLOB field references are set to zero, in -dtuple_convert_big_rec(). */ -extern const byte field_ref_zero[BTR_EXTERN_FIELD_REF_SIZE]; +#define BTR_EXTERN_FIELD_REF_SIZE FIELD_REF_SIZE + +/** If the data don't exceed the size, the data are stored locally. */ +#define BTR_EXTERN_LOCAL_STORED_MAX_SIZE \ + (BTR_EXTERN_FIELD_REF_SIZE * 2) + +/** The information is used for creating a new index tree when +applying TRUNCATE log record during recovery */ +struct btr_create_t { + + explicit btr_create_t(const byte* const ptr) + : + format_flags(), + n_fields(), + field_len(), + fields(ptr), + trx_id_pos(ULINT_UNDEFINED) + { + /* Do nothing */ + } + + /** Page format */ + ulint format_flags; + + /** Numbr of index fields */ + ulint n_fields; + + /** The length of the encoded meta-data */ + ulint field_len; + + /** Field meta-data, encoded. */ + const byte* const fields; + + /** Position of trx-id column. */ + ulint trx_id_pos; +}; #endif |