| // Copyright 2024 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 static com.google.devtools.build.lib.rules.cpp.HeaderInfoCodec.headerInfoCodec; |
| import static com.google.devtools.build.lib.unsafe.UnsafeProvider.getFieldOffset; |
| import static com.google.devtools.build.lib.unsafe.UnsafeProvider.unsafe; |
| |
| import com.google.common.collect.ImmutableMap; |
| import com.google.devtools.build.lib.rules.cpp.CcCompilationContext.HeaderInfo; |
| import com.google.devtools.build.lib.skyframe.serialization.AsyncDeserializationContext; |
| import com.google.devtools.build.lib.skyframe.serialization.AsyncDeserializationContext.FieldSetter; |
| import com.google.devtools.build.lib.skyframe.serialization.AsyncObjectCodec; |
| import com.google.devtools.build.lib.skyframe.serialization.DynamicCodec; |
| import com.google.devtools.build.lib.skyframe.serialization.DynamicCodec.FieldHandler; |
| import com.google.devtools.build.lib.skyframe.serialization.SerializationContext; |
| import com.google.devtools.build.lib.skyframe.serialization.SerializationException; |
| import com.google.protobuf.CodedInputStream; |
| import com.google.protobuf.CodedOutputStream; |
| import java.io.IOException; |
| |
| final class CcCompilationContextCodec extends AsyncObjectCodec<CcCompilationContext> { |
| |
| private final DynamicCodec delegate; |
| |
| private CcCompilationContextCodec() { |
| try { |
| // Overrides with custom `headerInfo` handler. |
| this.delegate = |
| DynamicCodec.createWithOverrides( |
| CcCompilationContext.class, |
| ImmutableMap.of( |
| CcCompilationContext.class.getDeclaredField("headerInfo"), |
| new RemoteHeaderInfoHandler( |
| getFieldOffset(CcCompilationContext.class, "headerInfo")))); |
| } catch (ReflectiveOperationException e) { |
| throw new IllegalStateException(e); |
| } |
| } |
| |
| @Override |
| public Class<CcCompilationContext> getEncodedClass() { |
| return CcCompilationContext.class; |
| } |
| |
| @Override |
| public void serialize( |
| SerializationContext context, CcCompilationContext obj, CodedOutputStream codedOut) |
| throws SerializationException, IOException { |
| delegate.serialize(context, obj, codedOut); |
| } |
| |
| @Override |
| public CcCompilationContext deserializeAsync( |
| AsyncDeserializationContext context, CodedInputStream codedIn) |
| throws SerializationException, IOException { |
| return (CcCompilationContext) delegate.deserializeAsync(context, codedIn); |
| } |
| |
| private static class RemoteHeaderInfoHandler |
| implements FieldHandler, FieldSetter<CcCompilationContext> { |
| private final long headerInfoOffset; |
| |
| private RemoteHeaderInfoHandler(long headerInfoOffset) { |
| this.headerInfoOffset = headerInfoOffset; |
| } |
| |
| @Override |
| public void serialize(SerializationContext context, CodedOutputStream codedOut, Object obj) |
| throws SerializationException, IOException { |
| context.putSharedValue( |
| (HeaderInfo) unsafe().getObject(obj, headerInfoOffset), |
| /* distinguisher= */ null, |
| headerInfoCodec(), |
| codedOut); |
| } |
| |
| @Override |
| public void deserialize( |
| AsyncDeserializationContext context, CodedInputStream codedIn, Object obj) |
| throws SerializationException, IOException { |
| context.getSharedValue( |
| codedIn, |
| /* distinguisher= */ null, |
| headerInfoCodec(), |
| (CcCompilationContext) obj, |
| (FieldSetter<CcCompilationContext>) this); |
| } |
| |
| @Override |
| public void set(CcCompilationContext context, Object obj) { |
| unsafe().putObject(context, headerInfoOffset, (HeaderInfo) obj); |
| } |
| } |
| } |