| /* |
| * Copyright 2017 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.idea.blaze.cpp; |
| |
| import com.google.common.base.Stopwatch; |
| import com.google.common.util.concurrent.Futures; |
| import com.google.common.util.concurrent.ListenableFuture; |
| import com.google.common.util.concurrent.ListeningExecutorService; |
| import com.google.idea.blaze.base.async.executor.BlazeExecutor; |
| import com.google.idea.blaze.base.ideinfo.ArtifactLocation; |
| import com.google.idea.blaze.base.ideinfo.TargetIdeInfo; |
| import com.google.idea.blaze.base.io.VirtualFileSystemProvider; |
| import com.google.idea.blaze.base.model.BlazeProjectData; |
| import com.google.idea.blaze.base.model.primitives.WorkspaceRoot; |
| import com.google.idea.blaze.base.projectview.ProjectViewManager; |
| import com.google.idea.blaze.base.projectview.ProjectViewSet; |
| import com.google.idea.blaze.base.sync.data.BlazeProjectDataManager; |
| import com.google.idea.blaze.base.sync.projectview.ProjectViewTargetImportFilter; |
| import com.google.idea.blaze.base.sync.workspace.ArtifactLocationDecoder; |
| import com.intellij.openapi.application.ApplicationManager; |
| import com.intellij.openapi.application.ModalityState; |
| import com.intellij.openapi.diagnostic.Logger; |
| import com.intellij.openapi.progress.ProcessCanceledException; |
| import com.intellij.openapi.progress.ProgressIndicator; |
| import com.intellij.openapi.progress.util.ProgressIndicatorUtils; |
| import com.intellij.openapi.project.DumbModeTask; |
| import com.intellij.openapi.project.DumbService; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.openapi.util.EmptyRunnable; |
| import com.intellij.openapi.vfs.VirtualFile; |
| import com.jetbrains.cidr.lang.preprocessor.OCImportGraph; |
| import com.jetbrains.cidr.lang.preprocessor.OCInclusionContextUtil; |
| import com.jetbrains.cidr.lang.workspace.OCResolveConfiguration; |
| import com.jetbrains.cidr.lang.workspace.OCWorkspace; |
| import com.jetbrains.cidr.lang.workspace.OCWorkspaceManager; |
| import java.io.File; |
| import java.util.ArrayList; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Set; |
| import java.util.concurrent.ExecutionException; |
| import java.util.concurrent.TimeUnit; |
| import java.util.concurrent.atomic.AtomicInteger; |
| |
| /** |
| * Fills some cidr caches after loading/rebuilding symbol tables. |
| * |
| * <p>Namely, some of the code for determining the {@link OCResolveConfiguration} of files depend on |
| * the {@link OCImportGraph}. If the cidr code becomes less dependent on {@link OCImportGraph} we |
| * can remove this step. See upstream bug for potential freezes due to depenence on OCImportGraph |
| * (https://youtrack.jetbrains.com/issue/CPP-10557). |
| */ |
| class CidrCacheFiller extends DumbModeTask { |
| private static final Logger logger = Logger.getInstance(CidrCacheFiller.class); |
| |
| private final Project project; |
| private final ListeningExecutorService executor; |
| |
| private CidrCacheFiller(Project project, ListeningExecutorService executor) { |
| this.project = project; |
| this.executor = executor; |
| } |
| |
| static void prefillCaches(Project project) { |
| DumbService.getInstance(project) |
| .queueTask(new CidrCacheFiller(project, BlazeExecutor.getInstance().getExecutor())); |
| } |
| |
| @Override |
| public void performInDumbMode(ProgressIndicator indicator) { |
| BlazeProjectData blazeProjectData = |
| BlazeProjectDataManager.getInstance(project).getBlazeProjectData(); |
| ProjectViewSet projectViewSet = ProjectViewManager.getInstance(project).getProjectViewSet(); |
| if (blazeProjectData == null || projectViewSet == null) { |
| return; |
| } |
| OCWorkspace ocWorkspace = OCWorkspaceManager.getWorkspace(project); |
| if (!(ocWorkspace instanceof BlazeCWorkspace)) { |
| return; |
| } |
| Stopwatch timer = Stopwatch.createStarted(); |
| indicator.setText("Pre-filling C++ caches"); |
| indicator.setIndeterminate(false); |
| indicator.setFraction(0); |
| ProjectViewTargetImportFilter filter = |
| new ProjectViewTargetImportFilter( |
| project, WorkspaceRoot.fromProject(project), projectViewSet); |
| ArtifactLocationDecoder decoder = blazeProjectData.artifactLocationDecoder; |
| Set<File> cSourceFiles = new HashSet<>(); |
| for (TargetIdeInfo target : blazeProjectData.targetMap.targets()) { |
| if (target.cIdeInfo == null || !filter.isSourceTarget(target)) { |
| continue; |
| } |
| for (ArtifactLocation sourceLocation : target.sources) { |
| cSourceFiles.add(decoder.decode(sourceLocation)); |
| } |
| } |
| int numSources = cSourceFiles.size(); |
| AtomicInteger numDone = new AtomicInteger(); |
| indicator.setText(String.format("Pre-filling C++ caches (%s files)", numSources)); |
| VirtualFileSystemProvider vfsProvider = VirtualFileSystemProvider.getInstance(); |
| List<ListenableFuture<?>> futures = new ArrayList<>(); |
| for (File sourceFile : cSourceFiles) { |
| futures.add( |
| executor.submit( |
| () -> { |
| VirtualFile sourceRoot = vfsProvider.getSystem().findFileByIoFile(sourceFile); |
| if (sourceRoot == null |
| || OCInclusionContextUtil.isNeedToFindRoot(sourceRoot, project)) { |
| updateIndicator(numDone, indicator, numSources); |
| return; |
| } |
| List<? extends OCResolveConfiguration> configurations = |
| ocWorkspace.getConfigurationsForFile(sourceRoot); |
| if (configurations.isEmpty()) { |
| updateIndicator(numDone, indicator, numSources); |
| return; |
| } |
| OCResolveConfiguration someConfiguration = configurations.get(0); |
| runInReadActionWithWriteActionPriorityWithRetries( |
| () -> |
| OCImportGraph.getAllRootHeaders(someConfiguration, sourceRoot, indicator)); |
| updateIndicator(numDone, indicator, numSources); |
| })); |
| } |
| try { |
| Futures.allAsList(futures).get(); |
| } catch (InterruptedException e) { |
| Thread.currentThread().interrupt(); |
| return; |
| } catch (ProcessCanceledException e) { |
| return; |
| } catch (ExecutionException e) { |
| logger.warn(e); |
| } |
| logger.info( |
| String.format( |
| "Pre-fill C++ caches took: %s ms for %s files", |
| timer.elapsed(TimeUnit.MILLISECONDS), numSources)); |
| } |
| |
| private static void updateIndicator( |
| AtomicInteger numDone, ProgressIndicator indicator, int total) { |
| int currentDone = numDone.incrementAndGet(); |
| indicator.setFraction((double) currentDone / total); |
| } |
| |
| // Use a friendlier read action which will allow write actions to jump in while still |
| // running multiple read actions in parallel. |
| // This is essentially DebuggerUtilImpl#runInReadActionWithWriteActionPriorityWithRetries |
| // but avoid depending on an Impl class for this simple loop. |
| private static void runInReadActionWithWriteActionPriorityWithRetries(Runnable runnable) { |
| while (true) { |
| if (runInReadActionWithWriteActionPriority(runnable)) { |
| return; |
| } |
| } |
| } |
| |
| // In #api_171: we can just use ProgressManager#runInReadActionWithWriteActionPriority |
| // instead of these two following methods. |
| private static boolean runInReadActionWithWriteActionPriority(Runnable runnable) { |
| boolean success = ProgressIndicatorUtils.runInReadActionWithWriteActionPriority(runnable); |
| if (!success) { |
| yieldToPendingWriteActions(); |
| } |
| return success; |
| } |
| |
| private static void yieldToPendingWriteActions() { |
| ApplicationManager.getApplication().invokeAndWait(EmptyRunnable.INSTANCE, ModalityState.any()); |
| } |
| } |