| // Copyright 2014 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.common.collect.Iterables; |
| import java.util.List; |
| |
| /** |
| * A context that allows execution of {@link Spawn} instances. |
| */ |
| @ActionContextMarker(name = "spawn") |
| public interface SpawnActionContext extends ActionContext { |
| |
| /** Executes the given spawn and returns metadata about the execution. */ |
| List<SpawnResult> exec(Spawn spawn, ActionExecutionContext actionExecutionContext) |
| throws ExecException, InterruptedException; |
| |
| /** |
| * Executes the given spawn, possibly asynchronously, and returns a FutureSpawn to represent the |
| * execution, which can be listened to / registered with Skyframe. |
| */ |
| default FutureSpawn execMaybeAsync(Spawn spawn, ActionExecutionContext actionExecutionContext) |
| throws ExecException, InterruptedException { |
| SpawnResult result = Iterables.getOnlyElement(exec(spawn, actionExecutionContext)); |
| return FutureSpawn.immediate(result); |
| } |
| |
| /** Returns whether this SpawnActionContext supports executing the given Spawn. */ |
| boolean canExec(Spawn spawn); |
| } |