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// 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.rules.cpp;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Iterables;
import com.google.devtools.build.lib.actions.ActionExecutionContext;
import com.google.devtools.build.lib.actions.ActionInput;
import com.google.devtools.build.lib.actions.Artifact;
import com.google.devtools.build.lib.actions.BaseSpawn;
import com.google.devtools.build.lib.actions.ExecException;
import com.google.devtools.build.lib.actions.ExecutionStrategy;
import com.google.devtools.build.lib.actions.Executor;
import com.google.devtools.build.lib.actions.ResourceSet;
import com.google.devtools.build.lib.actions.Spawn;
import com.google.devtools.build.lib.actions.SpawnActionContext;
/**
* A context for C++ compilation that calls into a {@link SpawnActionContext}.
*/
@ExecutionStrategy(
contextType = CppCompileActionContext.class,
name = {"spawn"}
)
public class SpawnGccStrategy implements CppCompileActionContext {
/**
* A {@link Spawn} that wraps a {@link CppCompileAction} and adds its
* {@code additionalInputs} (potential files included) to its inputs.
*/
private static class GccSpawn extends BaseSpawn {
private final Iterable<? extends ActionInput> inputs;
public GccSpawn(CppCompileAction action, ResourceSet resources) {
super(action.getArgv(), action.getEnvironment(), action.getExecutionInfo(), action,
resources);
this.inputs = Iterables.concat(action.getInputs(), action.getAdditionalInputs());
}
@Override
public Iterable<? extends ActionInput> getInputFiles() {
return ImmutableSet.copyOf(inputs);
}
}
@Override
public Iterable<Artifact> findAdditionalInputs(
CppCompileAction action,
ActionExecutionContext actionExecutionContext,
IncludeProcessing includeProcessing)
throws ExecException, InterruptedException {
return null;
}
@Override
public CppCompileActionContext.Reply execWithReply(
CppCompileAction action, ActionExecutionContext actionExecutionContext)
throws ExecException, InterruptedException {
Executor executor = actionExecutionContext.getExecutor();
SpawnActionContext spawnActionContext = executor.getSpawnActionContext(action.getMnemonic());
Spawn spawn = new GccSpawn(action, action.estimateResourceConsumptionLocal());
spawnActionContext.exec(spawn, actionExecutionContext);
return null;
}
@Override
public ResourceSet estimateResourceConsumption(CppCompileAction action) {
return action.estimateResourceConsumptionLocal();
}
@Override
public Reply getReplyFromException(ExecException e, CppCompileAction action) {
return null;
}
}
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