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Rename various "freeze multixact" variables

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It seems to make more sense to use "cutoff multixact" terminology
throughout the backend code; "freeze" is associated with replacing of an
Xid with FrozenTransactionId, which is not what we do for MultiXactIds.

Andres Freund
Some adjustments by Álvaro Herrera
This commit is contained in:
Alvaro Herrera
2013-09-16 15:45:00 -03:00
parent 0892ecbc01
commit dd778e9d88
11 changed files with 61 additions and 61 deletions
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12
src/backend/access/heap/rewriteheap.c
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@ -129,8 +129,8 @@ typedef struct RewriteStateData
* determine tuple visibility */
TransactionId rs_freeze_xid;/* Xid that will be used as freeze cutoff
* point */
MultiXactId rs_freeze_multi;/* MultiXactId that will be used as freeze
* cutoff point for multixacts */
MultiXactId rs_cutoff_multi;/* MultiXactId that will be used as cutoff
* point for multixacts */
MemoryContext rs_cxt; /* for hash tables and entries and tuples in
* them */
HTAB *rs_unresolved_tups; /* unmatched A tuples */
@ -180,7 +180,7 @@ static void raw_heap_insert(RewriteState state, HeapTuple tup);
* new_heap new, locked heap relation to insert tuples to
* oldest_xmin xid used by the caller to determine which tuples are dead
* freeze_xid xid before which tuples will be frozen
* freeze_multi multixact before which multis will be frozen
* min_multi multixact before which multis will be removed
* use_wal should the inserts to the new heap be WAL-logged?
*
* Returns an opaque RewriteState, allocated in current memory context,
@ -188,7 +188,7 @@ static void raw_heap_insert(RewriteState state, HeapTuple tup);
*/
RewriteState
begin_heap_rewrite(Relation new_heap, TransactionId oldest_xmin,
TransactionId freeze_xid, MultiXactId freeze_multi,
TransactionId freeze_xid, MultiXactId cutoff_multi,
bool use_wal)
{
RewriteState state;
@ -218,7 +218,7 @@ begin_heap_rewrite(Relation new_heap, TransactionId oldest_xmin,
state->rs_use_wal = use_wal;
state->rs_oldest_xmin = oldest_xmin;
state->rs_freeze_xid = freeze_xid;
state->rs_freeze_multi = freeze_multi;
state->rs_cutoff_multi = cutoff_multi;
state->rs_cxt = rw_cxt;
/* Initialize hash tables used to track update chains */
@ -347,7 +347,7 @@ rewrite_heap_tuple(RewriteState state,
* very-old xmin or xmax, so that future VACUUM effort can be saved.
*/
heap_freeze_tuple(new_tuple->t_data, state->rs_freeze_xid,
state->rs_freeze_multi);
state->rs_cutoff_multi);
/*
* Invalid ctid means that ctid should point to the tuple itself. We'll