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%% ----------------------------------------------------------------------------
%%
%% hanoidb: LSM-trees (Log-Structured Merge Trees) Indexed Storage
%%
%% Copyright 2011-2012 (c) Trifork A/S. All Rights Reserved.
%% http://trifork.com/ info@trifork.com
%%
%% Copyright 2012 (c) Basho Technologies, Inc. All Rights Reserved.
%% http://basho.com/ info@basho.com
%%
%% This file is provided to you under the Apache License, Version 2.0 (the
%% "License"); you may not use this file except in compliance with the License.
%% You may obtain a copy of the License at
%%
%% http://www.apache.org/licenses/LICENSE-2.0
%%
%% Unless required by applicable law or agreed to in writing, software
%% distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
%% WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
%% License for the specific language governing permissions and limitations
%% under the License.
%%
%% ----------------------------------------------------------------------------
-module(basho_bench_driver_hanoidb).
-record(state, { tree :: hanoidb:hanoidb(),
filename :: string(),
flags :: list(),
sync_interval :: integer() | infinity,
last_sync :: erlang:timestamp() }).
-export([new/1,
run/4]).
-include("hanoidb.hrl").
-include_lib("basho_bench/include/basho_bench.hrl").
-record(key_range, { from_key = <<>> :: binary(),
from_inclusive = true :: boolean(),
to_key :: binary() | undefined,
to_inclusive = false :: boolean(),
limit :: pos_integer() | undefined }).
%% ====================================================================
%% API
%% ====================================================================
new(_Id) ->
%% Make sure bitcask is available
case code:which(hanoidb) of
non_existing ->
?FAIL_MSG("~s requires hanoidb to be available on code path.\n",
[?MODULE]);
_ ->
ok
end,
%% Get the target directory
Dir = basho_bench_config:get(hanoidb_dir, "."),
Filename = filename:join(Dir, "test.hanoidb"),
Config = basho_bench_config:get(hanoidb_flags, []),
%% Look for sync interval config
SyncInterval =
case basho_bench_config:get(hanoidb_sync_interval, infinity) of
Value when is_integer(Value) ->
Value;
infinity ->
infinity
end,
%% Get any bitcask flags
case hanoidb:open(Filename, Config) of
{error, Reason} ->
?FAIL_MSG("Failed to open hanoidb in ~s: ~p\n", [Filename, Reason]);
{ok, FBTree} ->
{ok, #state { tree = FBTree,
filename = Filename,
sync_interval = SyncInterval,
last_sync = os:timestamp() }}
end.
run(get, KeyGen, _ValueGen, State) ->
case hanoidb:lookup(State#state.tree, KeyGen()) of
{ok, _Value} ->
{ok, State};
not_found ->
{ok, State};
{error, Reason} ->
{error, Reason}
end;
run(put, KeyGen, ValueGen, State) ->
case hanoidb:put(State#state.tree, KeyGen(), ValueGen()) of
ok ->
{ok, State};
{error, Reason} ->
{error, Reason}
end;
run(delete, KeyGen, _ValueGen, State) ->
case hanoidb:delete(State#state.tree, KeyGen()) of
ok ->
{ok, State};
{error, Reason} ->
{error, Reason}
end;
run(fold_100, KeyGen, _ValueGen, State) ->
[From,To] = lists:usort([KeyGen(), KeyGen()]),
case hanoidb:fold_range(State#state.tree,
fun(_Key,_Value,Count) ->
Count+1
end,
0,
#key_range{ from_key=From,
to_key=To,
limit=100 }) of
Count when Count >= 0; Count =< 100 ->
{ok,State};
Count ->
{error, {bad_fold_count, Count}}
end.
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