/// <summary>
/// Restarts and reinitializes the host process (or starts a new one if it is not running yet).
/// </summary>
/// <param name="optionsOpt">The options to initialize the new process with, or null to use the current options (or default options if the process isn't running yet).</param>
public async Task <RemoteExecutionResult> ResetAsync(InteractiveHostOptions optionsOpt)
{
try
{
var options = optionsOpt ?? _lazyRemoteService?.Options ?? new InteractiveHostOptions(null, CultureInfo.CurrentUICulture);
// replace the existing service with a new one:
var newService = CreateRemoteService(options, skipInitialization: false);
LazyRemoteService oldService = Interlocked.Exchange(ref _lazyRemoteService, newService);
if (oldService != null)
{
oldService.Dispose(joinThreads: false);
}
var initializedService = await TryGetOrCreateRemoteServiceAsync(processPendingOutput : false).ConfigureAwait(false);
if (initializedService.ServiceOpt == null)
{
return(default(RemoteExecutionResult));
}
return(initializedService.InitializationResult);
}
catch (Exception e) when(FatalError.Report(e))
{
throw ExceptionUtilities.Unreachable;
}
}
private volatile ProcessExitHandlerStatus _processExitHandlerStatus; // set to Handled on dispose
internal RemoteService(
InteractiveHost host,
Process process,
int processId,
JsonRpc jsonRpc,
InteractiveHostPlatformInfo platformInfo,
InteractiveHostOptions options
)
{
Process = process;
JsonRpc = jsonRpc;
PlatformInfo = platformInfo;
Options = options;
_host = host;
_joinOutputWritingThreadsOnDisposal = _host._joinOutputWritingThreadsOnDisposal;
_processId = processId;
_processExitHandlerStatus = ProcessExitHandlerStatus.Uninitialized;
// TODO (tomat): consider using single-thread async readers
_readOutputThread = new Thread(() => ReadOutput(error: false));
_readOutputThread.Name = "InteractiveHost-OutputReader-" + processId;
_readOutputThread.IsBackground = true;
_readOutputThread.Start();
_readErrorOutputThread = new Thread(() => ReadOutput(error: true));
_readErrorOutputThread.Name = "InteractiveHost-ErrorOutputReader-" + processId;
_readErrorOutputThread.IsBackground = true;
_readErrorOutputThread.Start();
}
public LazyRemoteService(InteractiveHost host, InteractiveHostOptions options, int instanceId, bool skipInitialization)
{
InitializedService = new AsyncLazy <InitializedRemoteService>(TryStartAndInitializeProcessAsync, cacheResult: true);
CancellationSource = new CancellationTokenSource();
InstanceId = instanceId;
Options = options;
Host = host;
SkipInitialization = skipInitialization;
}
public LazyRemoteService(InteractiveHost host, InteractiveHostOptions options, int instanceId, bool skipInitialization)
{
InitializedService = new AsyncLazy<InitializedRemoteService>(TryStartAndInitializeProcessAsync, cacheResult: true);
CancellationSource = new CancellationTokenSource();
InstanceId = instanceId;
Options = options;
Host = host;
SkipInitialization = skipInitialization;
}
private LazyRemoteService CreateRemoteService(
InteractiveHostOptions options,
bool skipInitialization
)
{
return(new LazyRemoteService(
this,
options,
Interlocked.Increment(ref _remoteServiceInstanceId),
skipInitialization
));
}
/// <summary>
/// Restarts and reinitializes the host process (or starts a new one if it is not running yet).
/// </summary>
/// <param name="options">The options to initialize the new process with.</param>
public async Task <RemoteExecutionResult> ResetAsync(InteractiveHostOptions options)
{
Debug.Assert(options != null);
try
{
// replace the existing service with a new one:
var newService = CreateRemoteService(options, skipInitialization: false);
var oldService = Interlocked.Exchange(ref _lazyRemoteService, newService);
if (oldService != null)
{
oldService.Dispose(joinThreads: false);
}
var initializedService = await TryGetOrCreateRemoteServiceAsync(processPendingOutput : false).ConfigureAwait(false);
if (initializedService.ServiceOpt == null)
{
return(default);
/// <summary>
/// Invoked by <see cref="InteractiveHost"/> when a new process is being started.
/// </summary>
private void ProcessStarting(InteractiveHostOptions options)
{
if (!Dispatcher.CheckAccess())
{
Dispatcher.BeginInvoke(new Action(() => ProcessStarting(options)));
return;
}
// Freeze all existing classifications and then clear the list of
// submission buffers we have.
FreezeClassifications();
_submissionBuffers.Clear();
// We always start out empty
_workspace.ClearSolution();
_currentSubmissionProjectId = null;
_previousSubmissionProjectId = null;
var metadataService = _workspace.CurrentSolution.Services.MetadataService;
ImmutableArray<string> referencePaths;
// reset configuration:
if (File.Exists(_responseFilePath))
{
// The base directory for relative paths is the directory that contains the .rsp file.
// Note that .rsp files included by this .rsp file will share the base directory (Dev10 behavior of csc/vbc).
var rspArguments = this.CommandLineParser.Parse(new[] { "@" + _responseFilePath }, Path.GetDirectoryName(_responseFilePath), RuntimeEnvironment.GetRuntimeDirectory(), null /* TODO: pass a valid value*/);
referencePaths = rspArguments.ReferencePaths;
// the base directory for references specified in the .rsp file is the .rsp file directory:
var rspMetadataReferenceResolver = new GacFileResolver(
referencePaths,
baseDirectory: rspArguments.BaseDirectory,
architectures: GacFileResolver.Default.Architectures, // TODO (tomat)
preferredCulture: System.Globalization.CultureInfo.CurrentCulture); // TODO (tomat)
var metadataProvider = metadataService.GetProvider();
// ignore unresolved references, they will be reported in the interactive window:
var rspReferences = rspArguments.ResolveMetadataReferences(new AssemblyReferenceResolver(rspMetadataReferenceResolver, metadataProvider))
.Where(r => !(r is UnresolvedMetadataReference));
var interactiveHelpersRef = metadataService.GetReference(typeof(Script).Assembly.Location, MetadataReferenceProperties.Assembly);
var interactiveHostObjectRef = metadataService.GetReference(typeof(InteractiveHostObject).Assembly.Location, MetadataReferenceProperties.Assembly);
_references = ImmutableHashSet.Create<MetadataReference>(
interactiveHelpersRef,
interactiveHostObjectRef)
.Union(rspReferences);
// we need to create projects for these:
_rspSourceFiles = rspArguments.SourceFiles;
}
else
{
var mscorlibRef = metadataService.GetReference(typeof(object).Assembly.Location, MetadataReferenceProperties.Assembly);
_references = ImmutableHashSet.Create<MetadataReference>(mscorlibRef);
_rspSourceFiles = ImmutableArray.Create<CommandLineSourceFile>();
referencePaths = ScriptOptions.Default.SearchPaths;
}
// reset search paths, working directory:
_metadataReferenceResolver = new GacFileResolver(
referencePaths,
baseDirectory: _initialWorkingDirectory,
architectures: GacFileResolver.Default.Architectures, // TODO (tomat)
preferredCulture: System.Globalization.CultureInfo.CurrentCulture); // TODO (tomat)
_sourceSearchPaths = InteractiveHost.Service.DefaultSourceSearchPaths;
// create the first submission project in the workspace after reset:
if (_currentSubmissionBuffer != null)
{
AddSubmission(_currentTextView, _currentSubmissionBuffer, this.LanguageName);
}
}
private async Task<ExecutionResult> ResetAsyncWorker(bool initialize = true)
{
try
{
var options = new InteractiveHostOptions(
initializationFile: initialize ? _responseFilePath : null,
culture: CultureInfo.CurrentUICulture);
var result = await _interactiveHost.ResetAsync(options).ConfigureAwait(false);
if (result.Success)
{
UpdateResolvers(result);
}
return new ExecutionResult(result.Success);
}
catch (Exception e) when (FatalError.Report(e))
{
throw ExceptionUtilities.Unreachable;
}
}