// Copyright 2015 The Bazel Authors. All rights reserved.
//
// Licensed 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.
package com.google.devtools.build.lib.actions;
import com.google.devtools.build.lib.util.Preconditions;
/**
* This event is fired during the build, when a middleman action is executed. Middleman actions
* don't usually do any computation but we need them in the critical path because they depend on
* other actions.
*/
public class ActionMiddlemanEvent {
private final Action action;
private final long nanoTimeStart;
/**
* Create an event for action that has been started.
*
* @param action the middleman action.
* @param nanoTimeStart the time when the action was started. This allow us to record more
* accurately the time spent by the middleman action, since even for middleman actions we execute
* some.
*/
public ActionMiddlemanEvent(Action action, long nanoTimeStart) {
Preconditions.checkArgument(action.getActionType().isMiddleman(),
"Only middleman actions should be passed: %s", action);
this.action = action;
this.nanoTimeStart = nanoTimeStart;
}
/**
* Returns the associated action.
*/
public Action getAction() {
return action;
}
public long getNanoTimeStart() {
return nanoTimeStart;
}
}