mirror of
https://github.com/valitydev/riak_test.git
synced 2024-11-06 16:45:29 +00:00
46 lines
1.9 KiB
Erlang
46 lines
1.9 KiB
Erlang
%% -------------------------------------------------------------------
|
|
%%
|
|
%% Copyright (c) 2015 Basho Technologies, Inc.
|
|
%%
|
|
%% 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(riak_kv_worker_intercepts).
|
|
-compile(export_all).
|
|
-include("intercept.hrl").
|
|
-define(M, riak_kv_worker_orig).
|
|
|
|
%
|
|
% Okay, this is an interesting intercept. The intention here is to insert some
|
|
% code into the point where the vnode has completed its fold, but before it invokes the finish
|
|
% command, which will inform the riak_core_vnode that handoff has completed for this node.
|
|
% This is a magic time, when handoff is running, and the fold has completed.
|
|
% In this case, we send a message to a process that is running in riak test
|
|
% (see verify_handoff_write_once, for an example), which will do a write during this
|
|
% magic time. We wait for said process to return us an ok.
|
|
%
|
|
% The objective is to force the vnode to trigger a handle_handoff_command,
|
|
% thus exercising the runtime/forwarding handoff logic in the vnode.
|
|
%
|
|
handle_work_intercept({fold, FoldFun, FinishFun}, Sender, State) ->
|
|
FinishWrapperFun = fun(X) ->
|
|
catch global:send(rt_ho_w1c_proc, {write, self()}),
|
|
receive
|
|
ok -> ok
|
|
end,
|
|
FinishFun(X)
|
|
end,
|
|
?M:handle_work_orig({fold, FoldFun, FinishWrapperFun}, Sender, State). |