Démarrage d'une build à partir de l'IDEStarting a Build from within the IDE

Les systèmes de projet personnalisés doivent utiliser IVsBuildManagerAccessor pour démarrer des builds.Custom project systems must use IVsBuildManagerAccessor to start builds. Cette rubrique en explique les raisons et décrit la procédure.This topic describes the reasons for this and outlines the procedure.

Builds et threads parallèlesParallel Builds and Threads

Visual StudioVisual Studio autorise les builds parallèles, ce qui nécessite une médiation d’accès aux ressources communes. allows parallel builds which requires mediation for access to common resources. Les systèmes de projet peuvent exécuter des builds en mode asynchrone, mais ils ne doivent pas appeler de fonctions de génération à partir des rappels qui sont fournis au gestionnaire de build.Project systems can run builds asynchronously, but such systems must not call build functions from within call backs is provided to the build manager.

Si le système de projet modifie des variables d’environnement, il doit définir le NodeAffinity de la build sur OutOfProc.If the project system modifies environment variables, it must set the NodeAffinity of the build to OutOfProc. Cela signifie que vous ne pouvez pas utiliser d’objets hôtes, puisqu’ils nécessitent le nœud in-process.This means that you cannot use host objects, since they require the in-proc node.

Utilisation d’IVSBuildManagerAccessorUsing IVSBuildManagerAccessor

Le code ci-dessous présente une méthode qui peut être utilisée par un système de projet pour démarrer une build :The code below outlines a method that a project system can use to start a build:


public bool Build(Project project, bool isDesignTimeBuild)  
{  
    // Get the accessor from the IServiceProvider interface for the   
    // project system  
    IVsBuildManagerAccessor accessor =  
        serviceProvider.GetService(typeof(SVsBuildManagerAccessor)) as     
        IVsBuildManagerAccessor;  
    bool releaseUIThread = false;  
    try  
    {  
        if(accessor != null)  
        {  
            // Claim the UI thread under the following conditions:  
            // 1. The build must use a resource that uses the UI thread  
            // or,  
            // 2. The build requires the in-proc node AND waits on the   
            // UI thread for the build to complete  
            if(NeedsUIThread)  
            {  
                int result = accessor.ClaimUIThreadForBuild();  
                if(result != S_OK)  
                {  
                     // Not allowed to claim the UI thread right now  
                     return false;  
                }  
                releaseUIThread = true;  
             }  
             if(isDesignTimeBuild)  
             {  
// Start the design time build  
                  int result = accessor.BeginDesignTimeBuild();  
                  if(result != S_OK)  
                  {  
                      // Not allowed to begin a design-time build at  
                      // this time. Try again later.  
                      return false;  
                  }  
             }  
         }  
         bool buildSucceeded = false;  
         // perform project-system specific build set up tasks  
         // Create your BuildRequestData  
         // This assumes a IHostServices variable (hostServices) set   
   // to your host services. If you don't use a project instance   
         // (you build from a file for example) then use another   
         // constructor.  
         BuildRequestData requestData = new   
             BuildRequestData(project.CreateProjectInstance(),   
             "myTarget", hostServices,   
             BuildRequestData.BuildRequestDataFlags.None);  
         // Mark your your submission as Pending  
         BuildSubmission submission =  
              BuildManager.DefaultBuildManager.  
              PendBuildRequest(requestData);  
         // Register the loggers in BuildLoggers  
         if (accessor != null)  
         {  
               foreach (ILogger logger in BuildLoggers)  
               {  
                    accessor.RegisterLogger(submission.SubmissionId,   
                        logger);  
               }  
         }  
         BuildResult buildResult = submission.Execute();  
         return buildResult;  
     }  
     // Clean up resources  
     finally  
     {  
         if(accessor != null)  
         {  
             // Unregister the loggers, if necessary.  
             accessor.UnregisterLoggers(submission.SubmissionId);  
             // Release the UI thread, if used  
             if(releaseUIThread)  
             {  
                  accessor.ReleaseUIThreadForBuild();  
             }  
             // End the design time build, if used  
             if(isDesignTimeBuild)  
             {  
                  accessor.EndDesignTimeBuild();  
             }  
         }  
     }  
}