diff options
Diffstat (limited to 'innobase/include/page0page.h')
| -rw-r--r-- | innobase/include/page0page.h | 211 |
1 files changed, 140 insertions, 71 deletions
diff --git a/innobase/include/page0page.h b/innobase/include/page0page.h index 969313614e3..d3ef8214eb6 100644 --- a/innobase/include/page0page.h +++ b/innobase/include/page0page.h @@ -37,7 +37,8 @@ typedef byte page_header_t; /*-----------------------------*/ #define PAGE_N_DIR_SLOTS 0 /* number of slots in page directory */ #define PAGE_HEAP_TOP 2 /* pointer to record heap top */ -#define PAGE_N_HEAP 4 /* number of records in the heap */ +#define PAGE_N_HEAP 4 /* number of records in the heap, + bit 15=flag: new-style compact page format */ #define PAGE_FREE 6 /* pointer to start of page free record list */ #define PAGE_GARBAGE 8 /* number of bytes in deleted records */ #define PAGE_LAST_INSERT 10 /* pointer to the last inserted record, or @@ -79,15 +80,24 @@ typedef byte page_header_t; #define PAGE_DATA (PAGE_HEADER + 36 + 2 * FSEG_HEADER_SIZE) /* start of data on the page */ -#define PAGE_INFIMUM (PAGE_DATA + 1 + REC_N_EXTRA_BYTES) - /* offset of the page infimum record on the - page */ -#define PAGE_SUPREMUM (PAGE_DATA + 2 + 2 * REC_N_EXTRA_BYTES + 8) - /* offset of the page supremum record on the - page */ -#define PAGE_SUPREMUM_END (PAGE_SUPREMUM + 9) +#define PAGE_OLD_INFIMUM (PAGE_DATA + 1 + REC_N_OLD_EXTRA_BYTES) + /* offset of the page infimum record on an + old-style page */ +#define PAGE_OLD_SUPREMUM (PAGE_DATA + 2 + 2 * REC_N_OLD_EXTRA_BYTES + 8) + /* offset of the page supremum record on an + old-style page */ +#define PAGE_OLD_SUPREMUM_END (PAGE_OLD_SUPREMUM + 9) /* offset of the page supremum record end on - the page */ + an old-style page */ +#define PAGE_NEW_INFIMUM (PAGE_DATA + REC_N_NEW_EXTRA_BYTES) + /* offset of the page infimum record on a + new-style compact page */ +#define PAGE_NEW_SUPREMUM (PAGE_DATA + 2 * REC_N_NEW_EXTRA_BYTES + 8) + /* offset of the page supremum record on a + new-style compact page */ +#define PAGE_NEW_SUPREMUM_END (PAGE_NEW_SUPREMUM + 8) + /* offset of the page supremum record end on + a new-style compact page */ /*-----------------------------*/ /* Directions of cursor movement */ @@ -233,6 +243,7 @@ page_cmp_dtuple_rec_with_match( be page infimum or supremum, in which case matched-parameter values below are not affected */ + const ulint* offsets,/* in: array returned by rec_get_offsets() */ ulint* matched_fields, /* in/out: number of already completely matched fields; when function returns contains the value for current comparison */ @@ -259,6 +270,22 @@ page_rec_get_n_recs_before( /* out: number of records */ rec_t* rec); /* in: the physical record */ /***************************************************************** +Gets the number of records in the heap. */ +UNIV_INLINE +ulint +page_dir_get_n_heap( +/*================*/ + /* out: number of user records */ + page_t* page); /* in: index page */ +/***************************************************************** +Sets the number of records in the heap. */ +UNIV_INLINE +void +page_dir_set_n_heap( +/*================*/ + page_t* page, /* in: index page */ + ulint n_heap);/* in: number of records */ +/***************************************************************** Gets the number of dir slots in directory. */ UNIV_INLINE ulint @@ -267,6 +294,15 @@ page_dir_get_n_slots( /* out: number of slots */ page_t* page); /* in: index page */ /***************************************************************** +Sets the number of dir slots in directory. */ +UNIV_INLINE +void +page_dir_set_n_slots( +/*=================*/ + /* out: number of slots */ + page_t* page, /* in: index page */ + ulint n_slots);/* in: number of slots */ +/***************************************************************** Gets pointer to nth directory slot. */ UNIV_INLINE page_dir_slot_t* @@ -333,7 +369,16 @@ ulint page_dir_find_owner_slot( /*=====================*/ /* out: the directory slot number */ - rec_t* rec); /* in: the physical record */ + rec_t* rec); /* in: the physical record */ +/**************************************************************** +Determine whether the page is in new-style compact format. */ +UNIV_INLINE +ibool +page_is_comp( +/*=========*/ + /* out: TRUE if the page is in compact format + FALSE if it is in old-style format */ + page_t* page); /* in: index page */ /**************************************************************** Gets the pointer to the next record on the page. */ UNIV_INLINE @@ -359,9 +404,10 @@ UNIV_INLINE rec_t* page_rec_get_prev( /*==============*/ - /* out: pointer to previous record */ - rec_t* rec); /* in: pointer to record, must not be page - infimum */ + /* out: pointer to previous record */ + rec_t* rec); /* in: pointer to record, + must not be page infimum */ + /**************************************************************** TRUE if the record is a user record on the page. */ UNIV_INLINE @@ -446,9 +492,11 @@ page_get_max_insert_size_after_reorganize( Calculates free space if a page is emptied. */ UNIV_INLINE ulint -page_get_free_space_of_empty(void); -/*==============================*/ - /* out: free space */ +page_get_free_space_of_empty( +/*=========================*/ + /* out: free space */ + ibool comp) /* in: TRUE=compact page format */ + __attribute__((const)); /**************************************************************** Returns the sum of the sizes of the records in the record list excluding the infimum and supremum records. */ @@ -464,20 +512,23 @@ Allocates a block of memory from an index page. */ byte* page_mem_alloc( /*===========*/ - /* out: pointer to start of allocated - buffer, or NULL if allocation fails */ - page_t* page, /* in: index page */ - ulint need, /* in: number of bytes needed */ - ulint* heap_no);/* out: this contains the heap number - of the allocated record if allocation succeeds */ + /* out: pointer to start of allocated + buffer, or NULL if allocation fails */ + page_t* page, /* in: index page */ + ulint need, /* in: number of bytes needed */ + dict_index_t* index, /* in: record descriptor */ + ulint* heap_no);/* out: this contains the heap number + of the allocated record + if allocation succeeds */ /**************************************************************** Puts a record to free list. */ UNIV_INLINE void page_mem_free( /*==========*/ - page_t* page, /* in: index page */ - rec_t* rec); /* in: pointer to the (origin of) record */ + page_t* page, /* in: index page */ + rec_t* rec, /* in: pointer to the (origin of) record */ + dict_index_t* index); /* in: record descriptor */ /************************************************************** The index page creation function. */ @@ -487,7 +538,8 @@ page_create( /* out: pointer to the page */ buf_frame_t* frame, /* in: a buffer frame where the page is created */ - mtr_t* mtr); /* in: mini-transaction handle */ + mtr_t* mtr, /* in: mini-transaction handle */ + ibool comp); /* in: TRUE=compact page format */ /***************************************************************** Differs from page_copy_rec_list_end, because this function does not touch the lock table and max trx id on page. */ @@ -495,10 +547,11 @@ touch the lock table and max trx id on page. */ void page_copy_rec_list_end_no_locks( /*============================*/ - page_t* new_page, /* in: index page to copy to */ - page_t* page, /* in: index page */ - rec_t* rec, /* in: record on page */ - mtr_t* mtr); /* in: mtr */ + page_t* new_page, /* in: index page to copy to */ + page_t* page, /* in: index page */ + rec_t* rec, /* in: record on page */ + dict_index_t* index, /* in: record descriptor */ + mtr_t* mtr); /* in: mtr */ /***************************************************************** Copies records from page to new_page, from the given record onward, including that record. Infimum and supremum records are not copied. @@ -507,10 +560,11 @@ The records are copied to the start of the record list on new_page. */ void page_copy_rec_list_end( /*===================*/ - page_t* new_page, /* in: index page to copy to */ - page_t* page, /* in: index page */ - rec_t* rec, /* in: record on page */ - mtr_t* mtr); /* in: mtr */ + page_t* new_page, /* in: index page to copy to */ + page_t* page, /* in: index page */ + rec_t* rec, /* in: record on page */ + dict_index_t* index, /* in: record descriptor */ + mtr_t* mtr); /* in: mtr */ /***************************************************************** Copies records from page to new_page, up to the given record, NOT including that record. Infimum and supremum records are not copied. @@ -519,10 +573,11 @@ The records are copied to the end of the record list on new_page. */ void page_copy_rec_list_start( /*=====================*/ - page_t* new_page, /* in: index page to copy to */ - page_t* page, /* in: index page */ - rec_t* rec, /* in: record on page */ - mtr_t* mtr); /* in: mtr */ + page_t* new_page, /* in: index page to copy to */ + page_t* page, /* in: index page */ + rec_t* rec, /* in: record on page */ + dict_index_t* index, /* in: record descriptor */ + mtr_t* mtr); /* in: mtr */ /***************************************************************** Deletes records from a page from a given record onward, including that record. The infimum and supremum records are not deleted. */ @@ -530,14 +585,15 @@ The infimum and supremum records are not deleted. */ void page_delete_rec_list_end( /*=====================*/ - page_t* page, /* in: index page */ - rec_t* rec, /* in: record on page */ - ulint n_recs, /* in: number of records to delete, or ULINT_UNDEFINED - if not known */ - ulint size, /* in: the sum of the sizes of the records in the end - of the chain to delete, or ULINT_UNDEFINED if not - known */ - mtr_t* mtr); /* in: mtr */ + page_t* page, /* in: index page */ + rec_t* rec, /* in: record on page */ + dict_index_t* index, /* in: record descriptor */ + ulint n_recs, /* in: number of records to delete, + or ULINT_UNDEFINED if not known */ + ulint size, /* in: the sum of the sizes of the + records in the end of the chain to + delete, or ULINT_UNDEFINED if not known */ + mtr_t* mtr); /* in: mtr */ /***************************************************************** Deletes records from page, up to the given record, NOT including that record. Infimum and supremum records are not deleted. */ @@ -545,9 +601,10 @@ that record. Infimum and supremum records are not deleted. */ void page_delete_rec_list_start( /*=======================*/ - page_t* page, /* in: index page */ - rec_t* rec, /* in: record on page */ - mtr_t* mtr); /* in: mtr */ + page_t* page, /* in: index page */ + rec_t* rec, /* in: record on page */ + dict_index_t* index, /* in: record descriptor */ + mtr_t* mtr); /* in: mtr */ /***************************************************************** Moves record list end to another page. Moved records include split_rec. */ @@ -555,10 +612,11 @@ split_rec. */ void page_move_rec_list_end( /*===================*/ - page_t* new_page, /* in: index page where to move */ - page_t* page, /* in: index page */ - rec_t* split_rec, /* in: first record to move */ - mtr_t* mtr); /* in: mtr */ + page_t* new_page, /* in: index page where to move */ + page_t* page, /* in: index page */ + rec_t* split_rec, /* in: first record to move */ + dict_index_t* index, /* in: record descriptor */ + mtr_t* mtr); /* in: mtr */ /***************************************************************** Moves record list start to another page. Moved records do not include split_rec. */ @@ -566,10 +624,11 @@ split_rec. */ void page_move_rec_list_start( /*=====================*/ - page_t* new_page, /* in: index page where to move */ - page_t* page, /* in: index page */ - rec_t* split_rec, /* in: first record not to move */ - mtr_t* mtr); /* in: mtr */ + page_t* new_page, /* in: index page where to move */ + page_t* page, /* in: index page */ + rec_t* split_rec, /* in: first record not to move */ + dict_index_t* index, /* in: record descriptor */ + mtr_t* mtr); /* in: mtr */ /******************************************************************** Splits a directory slot which owns too many records. */ @@ -595,13 +654,16 @@ Parses a log record of a record list end or start deletion. */ byte* page_parse_delete_rec_list( /*=======================*/ - /* out: end of log record or NULL */ - byte type, /* in: MLOG_LIST_END_DELETE or - MLOG_LIST_START_DELETE */ - byte* ptr, /* in: buffer */ - byte* end_ptr,/* in: buffer end */ - page_t* page, /* in: page or NULL */ - mtr_t* mtr); /* in: mtr or NULL */ + /* out: end of log record or NULL */ + byte type, /* in: MLOG_LIST_END_DELETE, + MLOG_LIST_START_DELETE, + MLOG_COMP_LIST_END_DELETE or + MLOG_COMP_LIST_START_DELETE */ + byte* ptr, /* in: buffer */ + byte* end_ptr,/* in: buffer end */ + dict_index_t* index, /* in: record descriptor */ + page_t* page, /* in: page or NULL */ + mtr_t* mtr); /* in: mtr or NULL */ /*************************************************************** Parses a redo log record of creating a page. */ @@ -611,6 +673,7 @@ page_parse_create( /* out: end of log record or NULL */ byte* ptr, /* in: buffer */ byte* end_ptr,/* in: buffer end */ + ibool comp, /* in: TRUE=compact page format */ page_t* page, /* in: page or NULL */ mtr_t* mtr); /* in: mtr or NULL */ /**************************************************************** @@ -620,7 +683,8 @@ the index page context. */ void page_rec_print( /*===========*/ - rec_t* rec); + rec_t* rec, /* in: physical record */ + const ulint* offsets);/* in: record descriptor */ /******************************************************************* This is used to print the contents of the directory for debugging purposes. */ @@ -637,8 +701,9 @@ debugging purposes. */ void page_print_list( /*============*/ - page_t* page, /* in: index page */ - ulint pr_n); /* in: print n first and n last entries */ + page_t* page, /* in: index page */ + dict_index_t* index, /* in: dictionary index of the page */ + ulint pr_n); /* in: print n first and n last entries */ /******************************************************************* Prints the info in a page header. */ @@ -653,9 +718,12 @@ debugging purposes. */ void page_print( /*======*/ - page_t* page, /* in: index page */ - ulint dn, /* in: print dn first and last entries in directory */ - ulint rn); /* in: print rn first and last records on page */ + page_t* page, /* in: index page */ + dict_index_t* index, /* in: dictionary index of the page */ + ulint dn, /* in: print dn first and last entries + in directory */ + ulint rn); /* in: print rn first and last records + in directory */ /******************************************************************* The following is used to validate a record on a page. This function differs from rec_validate as it can also check the n_owned field and @@ -664,8 +732,9 @@ the heap_no field. */ ibool page_rec_validate( /*==============*/ - /* out: TRUE if ok */ - rec_t* rec); /* in: record on the page */ + /* out: TRUE if ok */ + rec_t* rec, /* in: physical record */ + const ulint* offsets);/* in: array returned by rec_get_offsets() */ /******************************************************************* Checks that the first directory slot points to the infimum record and the last to the supremum. This function is intended to track if the |