greg/hanoidb
1
0
Fork 0
Code Issues 10 Pull requests 3 Projects Releases Packages Wiki Activity

fold from file counting

Browse source 
When folding, don't count tombstones towards
the folding limit.  Merge worker needs to be
able to progress to LIMIT number of non-deleted
entries.
This commit is contained in:
Kresten Krab Thorup 2012-05-05 13:02:36 +02:00
parent f821b38ea2
commit ec55a38c42
1 changed files with 2 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
src/hanoi_reader.erl
View file

@ -161,6 +161,8 @@ do_range_fold(Fun, Acc0, File, Range, N0) ->
{stop, {limit, Acc, Key}}; {stop, {limit, Acc, Key}};
({Key,_}, {_,Acc}) when not ?KEY_IN_TO_RANGE(Key,Range)-> ({Key,_}, {_,Acc}) when not ?KEY_IN_TO_RANGE(Key,Range)->
{stop, {done, Acc}}; {stop, {done, Acc}};
({Key,?TOMBSTONE}, {N1,Acc}) when ?KEY_IN_FROM_RANGE(Key,Range) ->
{continue, {N1, Fun(Key, ?TOMBSTONE, Acc)}};
({Key,Value}, {N1,Acc}) when ?KEY_IN_FROM_RANGE(Key,Range) -> ({Key,Value}, {N1,Acc}) when ?KEY_IN_FROM_RANGE(Key,Range) ->
{continue, {N1-1, Fun(Key, Value, Acc)}}; {continue, {N1-1, Fun(Key, Value, Acc)}};
(_, Acc) -> (_, Acc) ->