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Diffstat (limited to 'storage/innobase/include/row0vers.h')
| -rw-r--r-- | storage/innobase/include/row0vers.h | 126 |
1 files changed, 0 insertions, 126 deletions
diff --git a/storage/innobase/include/row0vers.h b/storage/innobase/include/row0vers.h deleted file mode 100644 index e1377112d2a..00000000000 --- a/storage/innobase/include/row0vers.h +++ /dev/null @@ -1,126 +0,0 @@ -/****************************************************** -Row versions - -(c) 1997 Innobase Oy - -Created 2/6/1997 Heikki Tuuri -*******************************************************/ - -#ifndef row0vers_h -#define row0vers_h - -#include "univ.i" -#include "data0data.h" -#include "dict0types.h" -#include "trx0types.h" -#include "que0types.h" -#include "rem0types.h" -#include "mtr0mtr.h" -#include "read0types.h" - -/********************************************************************* -Finds out if an active transaction has inserted or modified a secondary -index record. NOTE: the kernel mutex is temporarily released in this -function! */ - -trx_t* -row_vers_impl_x_locked_off_kernel( -/*==============================*/ - /* out: NULL if committed, else the active - transaction; NOTE that the kernel mutex is - temporarily released! */ - rec_t* rec, /* in: record in a secondary index */ - dict_index_t* index, /* in: the secondary index */ - const ulint* offsets);/* in: rec_get_offsets(rec, index) */ -/********************************************************************* -Finds out if we must preserve a delete marked earlier version of a clustered -index record, because it is >= the purge view. */ - -ibool -row_vers_must_preserve_del_marked( -/*==============================*/ - /* out: TRUE if earlier version should be preserved */ - dulint trx_id, /* in: transaction id in the version */ - mtr_t* mtr); /* in: mtr holding the latch on the clustered index - record; it will also hold the latch on purge_view */ -/********************************************************************* -Finds out if a version of the record, where the version >= the current -purge view, should have ientry as its secondary index entry. We check -if there is any not delete marked version of the record where the trx -id >= purge view, and the secondary index entry == ientry; exactly in -this case we return TRUE. */ - -ibool -row_vers_old_has_index_entry( -/*=========================*/ - /* out: TRUE if earlier version should have */ - ibool also_curr,/* in: TRUE if also rec is included in the - versions to search; otherwise only versions - prior to it are searched */ - rec_t* rec, /* in: record in the clustered index; the - caller must have a latch on the page */ - mtr_t* mtr, /* in: mtr holding the latch on rec; it will - also hold the latch on purge_view */ - dict_index_t* index, /* in: the secondary index */ - dtuple_t* ientry); /* in: the secondary index entry */ -/********************************************************************* -Constructs the version of a clustered index record which a consistent -read should see. We assume that the trx id stored in rec is such that -the consistent read should not see rec in its present version. */ - -ulint -row_vers_build_for_consistent_read( -/*===============================*/ - /* out: DB_SUCCESS or DB_MISSING_HISTORY */ - rec_t* rec, /* in: record in a clustered index; the - caller must have a latch on the page; this - latch locks the top of the stack of versions - of this records */ - mtr_t* mtr, /* in: mtr holding the latch on rec; it will - also hold the latch on purge_view */ - dict_index_t* index, /* in: the clustered index */ - ulint** offsets,/* in/out: offsets returned by - rec_get_offsets(rec, index) */ - read_view_t* view, /* in: the consistent read view */ - mem_heap_t** offset_heap,/* in/out: memory heap from which - the offsets are allocated */ - mem_heap_t* in_heap,/* in: memory heap from which the memory for - old_vers is allocated; memory for possible - intermediate versions is allocated and freed - locally within the function */ - rec_t** old_vers);/* out, own: old version, or NULL if the - record does not exist in the view, that is, - it was freshly inserted afterwards */ - -/********************************************************************* -Constructs the last committed version of a clustered index record, -which should be seen by a semi-consistent read. */ - -ulint -row_vers_build_for_semi_consistent_read( -/*====================================*/ - /* out: DB_SUCCESS or DB_MISSING_HISTORY */ - rec_t* rec, /* in: record in a clustered index; the - caller must have a latch on the page; this - latch locks the top of the stack of versions - of this records */ - mtr_t* mtr, /* in: mtr holding the latch on rec */ - dict_index_t* index, /* in: the clustered index */ - ulint** offsets,/* in/out: offsets returned by - rec_get_offsets(rec, index) */ - mem_heap_t** offset_heap,/* in/out: memory heap from which - the offsets are allocated */ - mem_heap_t* in_heap,/* in: memory heap from which the memory for - old_vers is allocated; memory for possible - intermediate versions is allocated and freed - locally within the function */ - rec_t** old_vers);/* out, own: rec, old version, or NULL if the - record does not exist in the view, that is, - it was freshly inserted afterwards */ - - -#ifndef UNIV_NONINL -#include "row0vers.ic" -#endif - -#endif |