/// <summary>
/// Handles the NodeConfiguration packet.
/// </summary>
private void HandleNodeConfiguration(NodeConfiguration configuration)
{
// Set the culture.
#if FEATURE_CULTUREINFO_SETTERS
CultureInfo.CurrentCulture = configuration.BuildParameters.Culture;
CultureInfo.CurrentUICulture = configuration.BuildParameters.UICulture;
#else
Thread.CurrentThread.CurrentCulture = configuration.BuildParameters.Culture;
Thread.CurrentThread.CurrentUICulture = configuration.BuildParameters.UICulture;
#endif
// Snapshot the initial environment.
_savedEnvironment = CommunicationsUtilities.GetEnvironmentVariables();
// Save the current directory.
_savedCurrentDirectory = NativeMethodsShared.GetCurrentDirectory();
// Set the node id.
_componentHost.BuildParameters.NodeId = configuration.NodeId;
_shutdownException = null;
#if FEATURE_APPDOMAIN
// And the AppDomainSetup
_componentHost.BuildParameters.AppDomainSetup = configuration.AppDomainSetup;
#endif
// Declare in-proc
_componentHost.BuildParameters.IsOutOfProc = false;
// Set the logging exception handler
ILoggingService loggingService = _componentHost.LoggingService;
loggingService.OnLoggingThreadException += new LoggingExceptionDelegate(OnLoggingThreadException);
// Now prep the buildRequestEngine for the build.
_loggingContext = new NodeLoggingContext(loggingService, configuration.NodeId, true /* inProcNode */);
_buildRequestEngine.OnEngineException += _engineExceptionEventHandler;
_buildRequestEngine.OnNewConfigurationRequest += _newConfigurationRequestEventHandler;
_buildRequestEngine.OnRequestBlocked += _requestBlockedEventHandler;
_buildRequestEngine.OnRequestComplete += _requestCompleteEventHandler;
if (_shutdownException != null)
{
Exception exception;
HandleShutdown(out exception);
throw exception;
}
_buildRequestEngine.InitializeForBuild(_loggingContext);
// Finally store off this configuration packet.
_currentConfiguration = configuration;
}
/// <summary>
/// Copy constructor
/// </summary>
internal BuildParameters(BuildParameters other, bool resetEnvironment = false)
{
ErrorUtilities.VerifyThrowInternalNull(other, nameof(other));
_buildId = other._buildId;
_culture = other._culture;
_defaultToolsVersion = other._defaultToolsVersion;
_enableNodeReuse = other._enableNodeReuse;
_buildProcessEnvironment = resetEnvironment
? CommunicationsUtilities.GetEnvironmentVariables()
: other._buildProcessEnvironment != null
? new Dictionary <string, string>(other._buildProcessEnvironment)
: null;
_environmentProperties = other._environmentProperties != null ? new PropertyDictionary <ProjectPropertyInstance>(other._environmentProperties) : null;
_forwardingLoggers = other._forwardingLoggers != null ? new List <ForwardingLoggerRecord>(other._forwardingLoggers) : null;
_globalProperties = other._globalProperties != null ? new PropertyDictionary <ProjectPropertyInstance>(other._globalProperties) : null;
HostServices = other.HostServices;
_loggers = other._loggers != null ? new List <ILogger>(other._loggers) : null;
_maxNodeCount = other._maxNodeCount;
_memoryUseLimit = other._memoryUseLimit;
_nodeExeLocation = other._nodeExeLocation;
NodeId = other.NodeId;
_onlyLogCriticalEvents = other._onlyLogCriticalEvents;
#if FEATURE_THREAD_PRIORITY
BuildThreadPriority = other.BuildThreadPriority;
#endif
_toolsetProvider = other._toolsetProvider;
ToolsetDefinitionLocations = other.ToolsetDefinitionLocations;
_toolsetProvider = other._toolsetProvider;
_uiCulture = other._uiCulture;
DetailedSummary = other.DetailedSummary;
_shutdownInProcNodeOnBuildFinish = other._shutdownInProcNodeOnBuildFinish;
ProjectRootElementCache = other.ProjectRootElementCache;
ResetCaches = other.ResetCaches;
LegacyThreadingSemantics = other.LegacyThreadingSemantics;
SaveOperatingEnvironment = other.SaveOperatingEnvironment;
_useSynchronousLogging = other._useSynchronousLogging;
_disableInProcNode = other._disableInProcNode;
_logTaskInputs = other._logTaskInputs;
_logInitialPropertiesAndItems = other._logInitialPropertiesAndItems;
WarningsAsErrors = other.WarningsAsErrors == null ? null : new HashSet <string>(other.WarningsAsErrors, StringComparer.OrdinalIgnoreCase);
WarningsAsMessages = other.WarningsAsMessages == null ? null : new HashSet <string>(other.WarningsAsMessages, StringComparer.OrdinalIgnoreCase);
_projectLoadSettings = other._projectLoadSettings;
_interactive = other._interactive;
_isolateProjects = other._isolateProjects;
_inputResultsCacheFiles = other._inputResultsCacheFiles;
_outputResultsCacheFile = other._outputResultsCacheFile;
DiscardBuildResults = other.DiscardBuildResults;
LowPriority = other.LowPriority;
ProjectCacheDescriptor = other.ProjectCacheDescriptor;
}
/// <summary>
/// Centralization of the common parts of construction.
/// </summary>
private void Initialize(PropertyDictionary <ProjectPropertyInstance> environmentProperties, ProjectRootElementCache projectRootElementCache, ToolsetProvider toolsetProvider)
{
_buildProcessEnvironment = CommunicationsUtilities.GetEnvironmentVariables();
_environmentProperties = environmentProperties;
this.ProjectRootElementCache = projectRootElementCache;
this.ResetCaches = true;
_toolsetProvider = toolsetProvider;
if (Environment.GetEnvironmentVariable("MSBUILDDISABLENODEREUSE") == "1") // For example to disable node reuse within Visual Studio
{
_enableNodeReuse = false;
}
if (Environment.GetEnvironmentVariable("MSBUILDDETAILEDSUMMARY") == "1") // For example to get detailed summary within Visual Studio
{
_detailedSummary = true;
}
_nodeExeLocation = FindMSBuildExe();
}
public bool Execute()
{
// log that we are about to spawn the task host
string runtime = _taskHostParameters[XMakeAttributes.runtime];
string architecture = _taskHostParameters[XMakeAttributes.architecture];
_taskLoggingContext.LogComment(MessageImportance.Low, "ExecutingTaskInTaskHost", _taskType.Type.Name, _taskType.Assembly.AssemblyLocation, runtime, architecture);
// set up the node
lock (_taskHostLock)
{
_taskHostProvider = (NodeProviderOutOfProcTaskHost)_buildComponentHost.GetComponent(BuildComponentType.OutOfProcTaskHostNodeProvider);
ErrorUtilities.VerifyThrowInternalNull(_taskHostProvider, "taskHostProvider");
}
TaskHostConfiguration hostConfiguration =
new TaskHostConfiguration
(
_buildComponentHost.BuildParameters.NodeId,
NativeMethodsShared.GetCurrentDirectory(),
CommunicationsUtilities.GetEnvironmentVariables(),
_buildComponentHost.BuildParameters.Culture,
_buildComponentHost.BuildParameters.UICulture,
#if FEATURE_APPDOMAIN
_appDomainSetup,
#endif
BuildEngine.LineNumberOfTaskNode,
BuildEngine.ColumnNumberOfTaskNode,
BuildEngine.ProjectFileOfTaskNode,
BuildEngine.ContinueOnError,
_taskType.Type.FullName,
AssemblyUtilities.GetAssemblyLocation(_taskType.Type.GetTypeInfo().Assembly),
_buildComponentHost.BuildParameters.LogTaskInputs,
_setParameters,
new Dictionary <string, string>(_buildComponentHost.BuildParameters.GlobalProperties),
_taskLoggingContext.GetWarningsAsErrors(),
_taskLoggingContext.GetWarningsAsMessages()
);
try
{
lock (_taskHostLock)
{
_requiredContext = CommunicationsUtilities.GetHandshakeOptions(taskHost: true, taskHostParameters: _taskHostParameters);
_connectedToTaskHost = _taskHostProvider.AcquireAndSetUpHost(_requiredContext, this, this, hostConfiguration);
}
if (_connectedToTaskHost)
{
try
{
bool taskFinished = false;
while (!taskFinished)
{
_packetReceivedEvent.WaitOne();
INodePacket packet = null;
// Handle the packet that's coming in
while (_receivedPackets.TryDequeue(out packet))
{
if (packet != null)
{
HandlePacket(packet, out taskFinished);
}
}
}
}
finally
{
lock (_taskHostLock)
{
_taskHostProvider.DisconnectFromHost(_requiredContext);
_connectedToTaskHost = false;
}
}
}
else
{
LogErrorUnableToCreateTaskHost(_requiredContext, runtime, architecture, null);
}
}
catch (BuildAbortedException)
{
LogErrorUnableToCreateTaskHost(_requiredContext, runtime, architecture, null);
}
catch (NodeFailedToLaunchException e)
{
LogErrorUnableToCreateTaskHost(_requiredContext, runtime, architecture, e);
}
return(_taskExecutionSucceeded);
}
private void HandleNodeConfiguration(NodeConfiguration configuration)
{
// Grab the system parameters.
_buildParameters = configuration.BuildParameters;
_buildParameters.ProjectRootElementCache = s_projectRootElementCacheBase;
// Snapshot the current environment
_savedEnvironment = CommunicationsUtilities.GetEnvironmentVariables();
// Change to the startup directory
try
{
NativeMethodsShared.SetCurrentDirectory(BuildParameters.StartupDirectory);
}
catch (DirectoryNotFoundException)
{
// Somehow the startup directory vanished. This can happen if build was started from a USB Key and it was removed.
NativeMethodsShared.SetCurrentDirectory(BuildEnvironmentHelper.Instance.CurrentMSBuildToolsDirectory);
}
// Replicate the environment. First, unset any environment variables set by the previous configuration.
if (_currentConfiguration != null)
{
foreach (string key in _currentConfiguration.BuildParameters.BuildProcessEnvironment.Keys)
{
Environment.SetEnvironmentVariable(key, null);
}
}
// Now set the new environment
foreach (KeyValuePair <string, string> environmentPair in _buildParameters.BuildProcessEnvironment)
{
Environment.SetEnvironmentVariable(environmentPair.Key, environmentPair.Value);
}
// We want to make sure the global project collection has the toolsets which were defined on the parent
// so that any custom toolsets defined can be picked up by tasks who may use the global project collection but are
// executed on the child node.
ICollection <Toolset> parentToolSets = _buildParameters.ToolsetProvider.Toolsets;
if (parentToolSets != null)
{
ProjectCollection.GlobalProjectCollection.RemoveAllToolsets();
foreach (Toolset toolSet in parentToolSets)
{
ProjectCollection.GlobalProjectCollection.AddToolset(toolSet);
}
}
// Set the culture.
CultureInfo.CurrentCulture = _buildParameters.Culture;
CultureInfo.CurrentUICulture = _buildParameters.UICulture;
// Get the node ID.
_buildParameters.NodeId = configuration.NodeId;
_buildParameters.IsOutOfProc = true;
#if FEATURE_APPDOMAIN
// And the AppDomainSetup
_buildParameters.AppDomainSetup = configuration.AppDomainSetup;
#endif
// Set up the logging service.
LoggingServiceFactory loggingServiceFactory = new LoggingServiceFactory(LoggerMode.Asynchronous, configuration.NodeId);
_componentFactories.ReplaceFactory(BuildComponentType.LoggingService, loggingServiceFactory.CreateInstance);
_loggingService = _componentFactories.GetComponent(BuildComponentType.LoggingService) as ILoggingService;
BuildEventArgTransportSink sink = new BuildEventArgTransportSink(SendPacket);
_shutdownException = null;
if (configuration.LoggingNodeConfiguration.IncludeEvaluationMetaprojects)
{
_loggingService.IncludeEvaluationMetaprojects = true;
}
if (configuration.LoggingNodeConfiguration.IncludeEvaluationProfiles)
{
_loggingService.IncludeEvaluationProfile = true;
}
if (configuration.LoggingNodeConfiguration.IncludeTaskInputs)
{
_loggingService.IncludeTaskInputs = true;
}
if (configuration.LoggingNodeConfiguration.IncludeEvaluationPropertiesAndItems)
{
_loggingService.IncludeEvaluationPropertiesAndItems = true;
}
try
{
// If there are no node loggers to initialize dont do anything
if (configuration.LoggerDescriptions?.Length > 0)
{
_loggingService.InitializeNodeLoggers(configuration.LoggerDescriptions, sink, configuration.NodeId);
}
}
catch (Exception ex) when(!ExceptionHandling.IsCriticalException(ex))
{
OnEngineException(ex);
}
_loggingService.OnLoggingThreadException += OnLoggingThreadException;
string forwardPropertiesFromChild = Environment.GetEnvironmentVariable("MSBUILDFORWARDPROPERTIESFROMCHILD");
string[] propertyListToSerialize = null;
// Get a list of properties which should be serialized
if (!String.IsNullOrEmpty(forwardPropertiesFromChild))
{
propertyListToSerialize = forwardPropertiesFromChild.Split(MSBuildConstants.SemicolonChar, StringSplitOptions.RemoveEmptyEntries);
}
_loggingService.PropertiesToSerialize = propertyListToSerialize;
_loggingService.RunningOnRemoteNode = true;
string forwardAllProperties = Environment.GetEnvironmentVariable("MSBUILDFORWARDALLPROPERTIESFROMCHILD");
if (String.Equals(forwardAllProperties, "1", StringComparison.OrdinalIgnoreCase) || _buildParameters.LogInitialPropertiesAndItems)
{
_loggingService.SerializeAllProperties = true;
}
else
{
_loggingService.SerializeAllProperties = false;
}
// Now prep the buildRequestEngine for the build.
_loggingContext = new NodeLoggingContext(_loggingService, configuration.NodeId, false /* inProcNode */);
if (_shutdownException != null)
{
HandleShutdown(out Exception exception);
throw exception;
}
_buildRequestEngine.InitializeForBuild(_loggingContext);
// Finally store off this configuration packet.
_currentConfiguration = configuration;
}
private NodeEngineShutdownReason HandleShutdown(out Exception exception)
{
CommunicationsUtilities.Trace("Shutting down with reason: {0}, and exception: {1}.", _shutdownReason, _shutdownException);
// Clean up the engine
if (_buildRequestEngine != null && _buildRequestEngine.Status != BuildRequestEngineStatus.Uninitialized)
{
_buildRequestEngine.CleanupForBuild();
if (_shutdownReason == NodeEngineShutdownReason.BuildCompleteReuse)
{
((IBuildComponent)_buildRequestEngine).ShutdownComponent();
}
}
// Signal the SDK resolver service to shutdown
((IBuildComponent)_sdkResolverService).ShutdownComponent();
// Dispose of any build registered objects
IRegisteredTaskObjectCache objectCache = (IRegisteredTaskObjectCache)(_componentFactories.GetComponent(BuildComponentType.RegisteredTaskObjectCache));
objectCache.DisposeCacheObjects(RegisteredTaskObjectLifetime.Build);
if (_shutdownReason != NodeEngineShutdownReason.BuildCompleteReuse)
{
// Dispose of any node registered objects.
((IBuildComponent)objectCache).ShutdownComponent();
}
// Shutdown any Out Of Proc Nodes Created
_taskHostNodeManager.ShutdownConnectedNodes(_shutdownReason == NodeEngineShutdownReason.BuildCompleteReuse);
// On Windows, a process holds a handle to the current directory,
// so reset it away from a user-requested folder that may get deleted.
NativeMethodsShared.SetCurrentDirectory(BuildEnvironmentHelper.Instance.CurrentMSBuildToolsDirectory);
// Restore the original environment.
// If the node was never configured, this will be null.
if (_savedEnvironment != null)
{
foreach (KeyValuePair <string, string> entry in CommunicationsUtilities.GetEnvironmentVariables())
{
if (!_savedEnvironment.ContainsKey(entry.Key))
{
Environment.SetEnvironmentVariable(entry.Key, null);
}
}
foreach (KeyValuePair <string, string> entry in _savedEnvironment)
{
Environment.SetEnvironmentVariable(entry.Key, entry.Value);
}
}
try
{
// Shut down logging, which will cause all queued logging messages to be sent.
if (_loggingContext != null && _loggingService != null)
{
_loggingContext.LogBuildFinished(true);
((IBuildComponent)_loggingService).ShutdownComponent();
}
}
finally
{
// Shut down logging, which will cause all queued logging messages to be sent.
if (_loggingContext != null && _loggingService != null)
{
_loggingContext.LoggingService.OnLoggingThreadException -= OnLoggingThreadException;
_loggingContext = null;
}
exception = _shutdownException;
if (_nodeEndpoint.LinkStatus == LinkStatus.Active)
{
// Notify the BuildManager that we are done.
_nodeEndpoint.SendData(new NodeShutdown(_shutdownReason == NodeEngineShutdownReason.Error ? NodeShutdownReason.Error : NodeShutdownReason.Requested, exception));
// Flush all packets to the pipe and close it down. This blocks until the shutdown is complete.
_nodeEndpoint.OnLinkStatusChanged -= OnLinkStatusChanged;
}
_nodeEndpoint.Disconnect();
CleanupCaches();
}
CommunicationsUtilities.Trace("Shut down complete.");
return(_shutdownReason);
}
/// <summary>
/// Perform necessary actions to shut down the node.
/// </summary>
private NodeEngineShutdownReason HandleShutdown(out Exception exception)
{
// Console.WriteLine("Node shutting down with reason {0} and exception: {1}", shutdownReason, shutdownException);
try
{
// Clean up the engine
if (_buildRequestEngine != null && _buildRequestEngine.Status != BuildRequestEngineStatus.Uninitialized)
{
_buildRequestEngine.CleanupForBuild();
}
}
catch (Exception ex)
{
if (ExceptionHandling.IsCriticalException(ex))
{
throw;
}
// If we had some issue shutting down, don't reuse the node because we may be in some weird state.
if (_shutdownReason == NodeEngineShutdownReason.BuildCompleteReuse)
{
_shutdownReason = NodeEngineShutdownReason.BuildComplete;
}
}
// Dispose of any build registered objects
IRegisteredTaskObjectCache objectCache = (IRegisteredTaskObjectCache)(_componentHost.GetComponent(BuildComponentType.RegisteredTaskObjectCache));
objectCache.DisposeCacheObjects(RegisteredTaskObjectLifetime.Build);
if (_shutdownReason != NodeEngineShutdownReason.BuildCompleteReuse)
{
// Dispose of any node registered objects.
((IBuildComponent)objectCache).ShutdownComponent();
}
if (_componentHost.BuildParameters.SaveOperatingEnvironment)
{
// Restore the original current directory.
NativeMethodsShared.SetCurrentDirectory(_savedCurrentDirectory);
// Restore the original environment.
foreach (KeyValuePair <string, string> entry in CommunicationsUtilities.GetEnvironmentVariables())
{
if (!_savedEnvironment.ContainsKey(entry.Key))
{
Environment.SetEnvironmentVariable(entry.Key, null);
}
}
foreach (KeyValuePair <string, string> entry in _savedEnvironment)
{
Environment.SetEnvironmentVariable(entry.Key, entry.Value);
}
}
exception = _shutdownException;
if (_loggingContext != null)
{
_loggingContext.LoggingService.OnLoggingThreadException -= OnLoggingThreadException;
_loggingContext = null;
}
// Notify the BuildManager that we are done.
if (_nodeEndpoint.LinkStatus == LinkStatus.Active)
{
_nodeEndpoint.SendData(new NodeShutdown(_shutdownReason == NodeEngineShutdownReason.Error ? NodeShutdownReason.Error : NodeShutdownReason.Requested, exception));
}
_buildRequestEngine.OnEngineException -= _engineExceptionEventHandler;
_buildRequestEngine.OnNewConfigurationRequest -= _newConfigurationRequestEventHandler;
_buildRequestEngine.OnRequestBlocked -= _requestBlockedEventHandler;
_buildRequestEngine.OnRequestComplete -= _requestCompleteEventHandler;
_buildRequestEngine.OnResourceRequest -= _resourceRequestHandler;
return(_shutdownReason);
}
/// <summary>
/// Perform necessary actions to shut down the node.
/// </summary>
private NodeEngineShutdownReason HandleShutdown(out Exception exception)
{
if (_debugCommunications)
{
using (StreamWriter writer = File.CreateText(String.Format(CultureInfo.CurrentCulture, Path.Combine(Path.GetTempPath(), @"MSBuild_NodeShutdown_{0}.txt"), Process.GetCurrentProcess().Id)))
{
writer.WriteLine("Node shutting down with reason {0} and exception: {1}", _shutdownReason, _shutdownException);
}
}
// Clean up the engine
if (null != _buildRequestEngine && _buildRequestEngine.Status != BuildRequestEngineStatus.Uninitialized)
{
_buildRequestEngine.CleanupForBuild();
if (_shutdownReason == NodeEngineShutdownReason.BuildCompleteReuse)
{
((IBuildComponent)_buildRequestEngine).ShutdownComponent();
}
}
// Dispose of any build registered objects
IRegisteredTaskObjectCache objectCache = (IRegisteredTaskObjectCache)(_componentFactories.GetComponent(BuildComponentType.RegisteredTaskObjectCache));
objectCache.DisposeCacheObjects(RegisteredTaskObjectLifetime.Build);
if (_shutdownReason != NodeEngineShutdownReason.BuildCompleteReuse)
{
// Dispose of any node registered objects.
((IBuildComponent)objectCache).ShutdownComponent();
}
// Shutdown any Out Of Proc Nodes Created
_taskHostNodeManager.ShutdownConnectedNodes(_shutdownReason == NodeEngineShutdownReason.BuildCompleteReuse);
// Restore the original current directory.
NativeMethodsShared.SetCurrentDirectory(Environment.SystemDirectory);
// Restore the original environment.
// If the node was never configured, this will be null.
if (_savedEnvironment != null)
{
foreach (KeyValuePair <string, string> entry in CommunicationsUtilities.GetEnvironmentVariables())
{
if (!_savedEnvironment.ContainsKey(entry.Key))
{
Environment.SetEnvironmentVariable(entry.Key, null);
}
}
foreach (KeyValuePair <string, string> entry in _savedEnvironment)
{
Environment.SetEnvironmentVariable(entry.Key, entry.Value);
}
}
try
{
// Shut down logging, which will cause all queued logging messages to be sent.
if (null != _loggingContext && null != _loggingService)
{
_loggingContext.LogBuildFinished(true);
((IBuildComponent)_loggingService).ShutdownComponent();
}
}
finally
{
// Shut down logging, which will cause all queued logging messages to be sent.
if (null != _loggingContext && null != _loggingService)
{
_loggingContext.LoggingService.OnLoggingThreadException -= new LoggingExceptionDelegate(OnLoggingThreadException);
_loggingContext = null;
}
exception = _shutdownException;
if (_nodeEndpoint.LinkStatus == LinkStatus.Active)
{
// Notify the BuildManager that we are done.
_nodeEndpoint.SendData(new NodeShutdown(_shutdownReason == NodeEngineShutdownReason.Error ? NodeShutdownReason.Error : NodeShutdownReason.Requested, exception));
// Flush all packets to the pipe and close it down. This blocks until the shutdown is complete.
_nodeEndpoint.OnLinkStatusChanged -= new LinkStatusChangedDelegate(OnLinkStatusChanged);
}
_nodeEndpoint.Disconnect();
CleanupCaches();
}
return(_shutdownReason);
}
/// <summary>
/// Task runner method
/// </summary>
private void RunTask(object state)
{
_isTaskExecuting = true;
OutOfProcTaskHostTaskResult taskResult = null;
TaskHostConfiguration taskConfiguration = state as TaskHostConfiguration;
IDictionary <string, TaskParameter> taskParams = taskConfiguration.TaskParameters;
// We only really know the values of these variables for sure once we see what we received from our parent
// environment -- otherwise if this was a completely new build, we could lose out on expected environment
// variables.
_debugCommunications = taskConfiguration.BuildProcessEnvironment.ContainsValueAndIsEqual("MSBUILDDEBUGCOMM", "1", StringComparison.OrdinalIgnoreCase);
_updateEnvironment = !taskConfiguration.BuildProcessEnvironment.ContainsValueAndIsEqual("MSBuildTaskHostDoNotUpdateEnvironment", "1", StringComparison.OrdinalIgnoreCase);
_updateEnvironmentAndLog = taskConfiguration.BuildProcessEnvironment.ContainsValueAndIsEqual("MSBuildTaskHostUpdateEnvironmentAndLog", "1", StringComparison.OrdinalIgnoreCase);
try
{
// Change to the startup directory
NativeMethodsShared.SetCurrentDirectory(taskConfiguration.StartupDirectory);
if (_updateEnvironment)
{
InitializeMismatchedEnvironmentTable(taskConfiguration.BuildProcessEnvironment);
}
// Now set the new environment
SetTaskHostEnvironment(taskConfiguration.BuildProcessEnvironment);
// Set culture
Thread.CurrentThread.CurrentCulture = taskConfiguration.Culture;
Thread.CurrentThread.CurrentUICulture = taskConfiguration.UICulture;
string taskName = taskConfiguration.TaskName;
string taskLocation = taskConfiguration.TaskLocation;
// We will not create an appdomain now because of a bug
// As a fix, we will create the class directly without wrapping it in a domain
_taskWrapper = new OutOfProcTaskAppDomainWrapper();
taskResult = _taskWrapper.ExecuteTask
(
this as IBuildEngine,
taskName,
taskLocation,
taskConfiguration.ProjectFileOfTask,
taskConfiguration.LineNumberOfTask,
taskConfiguration.ColumnNumberOfTask,
taskConfiguration.AppDomainSetup,
taskParams
);
}
catch (Exception e)
{
if (e is ThreadAbortException)
{
// This thread was aborted as part of Cancellation, we will return a failure task result
taskResult = new OutOfProcTaskHostTaskResult(TaskCompleteType.Failure);
}
else if (ExceptionHandling.IsCriticalException(e))
{
throw;
}
else
{
taskResult = new OutOfProcTaskHostTaskResult(TaskCompleteType.CrashedDuringExecution, e);
}
}
finally
{
try
{
_isTaskExecuting = false;
IDictionary <string, string> currentEnvironment = CommunicationsUtilities.GetEnvironmentVariables();
currentEnvironment = UpdateEnvironmentForMainNode(currentEnvironment);
if (taskResult == null)
{
taskResult = new OutOfProcTaskHostTaskResult(TaskCompleteType.Failure);
}
lock (_taskCompleteLock)
{
_taskCompletePacket = new TaskHostTaskComplete
(
taskResult,
currentEnvironment
);
}
foreach (TaskParameter param in taskParams.Values)
{
// Tell remoting to forget connections to the parameter
RemotingServices.Disconnect(param);
}
// Restore the original clean environment
CommunicationsUtilities.SetEnvironment(_savedEnvironment);
}
catch (Exception e)
{
lock (_taskCompleteLock)
{
// Create a minimal taskCompletePacket to carry the exception so that the TaskHostTask does not hang while waiting
_taskCompletePacket = new TaskHostTaskComplete(new OutOfProcTaskHostTaskResult(TaskCompleteType.CrashedAfterExecution, e), null);
}
}
finally
{
// Call CleanupTask to unload any domains and other necessary cleanup in the taskWrapper
_taskWrapper.CleanupTask();
// The task has now fully completed executing
_taskCompleteEvent.Set();
}
}
}
/// <summary>
/// Starts up the node and processes messages until the node is requested to shut down.
/// </summary>
/// <param name="shutdownException">The exception which caused shutdown, if any.</param>
/// <returns>The reason for shutting down.</returns>
public NodeEngineShutdownReason Run(out Exception shutdownException)
{
#if !CLR2COMPATIBILITY
_registeredTaskObjectCache = new RegisteredTaskObjectCacheBase();
#endif
shutdownException = null;
// Snapshot the current environment
_savedEnvironment = CommunicationsUtilities.GetEnvironmentVariables();
string pipeName = "MSBuild" + Process.GetCurrentProcess().Id;
_nodeEndpoint = new NodeEndpointOutOfProcTaskHost(pipeName);
_nodeEndpoint.OnLinkStatusChanged += new LinkStatusChangedDelegate(OnLinkStatusChanged);
_nodeEndpoint.Listen(this);
WaitHandle[] waitHandles = new WaitHandle[] { _shutdownEvent, _packetReceivedEvent, _taskCompleteEvent, _taskCancelledEvent };
while (true)
{
int index = WaitHandle.WaitAny(waitHandles);
switch (index)
{
case 0: // shutdownEvent
NodeEngineShutdownReason shutdownReason = HandleShutdown();
return(shutdownReason);
case 1: // packetReceivedEvent
INodePacket packet = null;
int packetCount = _receivedPackets.Count;
while (packetCount > 0)
{
lock (_receivedPackets)
{
if (_receivedPackets.Count > 0)
{
packet = _receivedPackets.Dequeue();
}
else
{
break;
}
}
if (packet != null)
{
HandlePacket(packet);
}
}
break;
case 2: // taskCompleteEvent
CompleteTask();
break;
case 3: // taskCancelledEvent
CancelTask();
break;
}
}
// UNREACHABLE
}