diff options
| author | Adam Kocoloski <adam@cloudant.com> | 2010-06-10 09:45:28 -0400 |
|---|---|---|
| committer | Adam Kocoloski <adam@cloudant.com> | 2010-08-12 00:59:45 -0400 |
| commit | 4928ce68b31b7fd5ce3fcf1d4ebc4a786fd045eb (patch) | |
| tree | 8318184addde439d0bb30162b560df83249258eb /src | |
| parent | 67ddab6a918f1844ec5d15ac5613f70ef763c356 (diff) | |
remove hash_int(), just convert hash() to int inline
Diffstat (limited to 'src')
| -rw-r--r-- | src/partitions.erl | 13 |
1 files changed, 2 insertions, 11 deletions
diff --git a/src/partitions.erl b/src/partitions.erl index cfc1d90b..0a20d195 100644 --- a/src/partitions.erl +++ b/src/partitions.erl @@ -45,7 +45,7 @@ install_fullmap(DbName, Fullmap, FullNodes, Options) -> write_db_doc(Doc). for_key(DbName, Key) -> - HashKey = hash_int(hash(Key)), + <<HashKey:160/integer>> = hash(Key), Head = #shard{ name = '_', node = '_', @@ -88,8 +88,7 @@ const(Const, Options) -> %% @doc hash the dbname, and return the corresponding node for seeding a ring seednode(DbName, Nodes) -> - Hash = hash(DbName), - HashInt = hash_int(Hash), + <<HashInt:160/integer>> = hash(DbName), Size = partition_range(length(Nodes)), Factor = (HashInt div Size), lists:nth(Factor+1, Nodes). @@ -139,14 +138,6 @@ partners(DbName, N, Node, Nodes, {Beg,End}) -> name=shard_name(Beg,DbName)} end, Partners). - -%% @doc turn hash into an integer -hash_int(Hash) when is_binary(Hash) -> - <<IndexAsInt:160/integer>> = Hash, - IndexAsInt; -hash_int(Hash) when is_integer(Hash) -> - Hash. - %% @doc size of one partition in the ring partition_range(Q) -> trunc( ?RINGTOP / Q ). % SHA-1 space / Q |