public LocalMessage(TPayload payload, bool ownsPayload)
{
payload.EnsureNotNull(nameof(payload));
//
_localCreationTimestamp = DateTimeOffset.Now;
_payload = payload.ToValueHolder(ownsValue: ownsPayload);
}
internal P_DefaultHolder(IVh <CompiledLambdaExpressionCache> holder)
{
holder.EnsureNotNull(nameof(holder));
//
Holder = holder;
Value = holder.Value;
}
protected override void Dispose(bool explicitDispose)
{
if (explicitDispose)
{
_newDependencyInstancesDisposeRegistry?.Dispose();
//
_runningResolutionsSpinLock?.EnterAndExitLock();
_runningResolutionsUniqueness?.Clear();
_runningResolutionsSequence?.Clear();
//
_resolutionModelLazy?.Dispose();
//
_exporter?.Dispose();
//
_outerScopeGetter?.Dispose();
}
_newDependencyInstancesDisposeRegistry = null;
_runningResolutionsUniqueness = null;
_runningResolutionsSequence = null;
_runningResolutionsSpinLock = null;
_resolutionModelLazy = null;
_exporter = null;
_outerScopeGetter = null;
_serviceProviderApi = null;
_owner = null;
//
base.Dispose(explicitDispose);
}
public DisposableLazy(IVh <T> valueStore)
{
valueStore.EnsureNotNull(nameof(valueStore));
//
_identity = null;
_factory = null;
_valueHolder = valueStore;
}
/// <summary>
/// Инициализирует новый экземпляр типа <see cref="StreamInfo"/>.
/// </summary>
/// <param name="stream">Поток.</param>
/// <param name="contentMediaType">
/// Медиа-тип содержимого потока.
/// <para>По умолчанию (в том числе, когда <paramref name="contentMediaType"/> равен null) используется медиа-тип <see cref="MediaTypeNameUtilities.AppOctetStream"/>.</para>
/// </param>
public StreamInfo(IVh <Stream> stream, string contentMediaType = null)
{
stream.Arg(nameof(stream)).EnsureSelfAndValueNotNull();
contentMediaType.Arg(nameof(contentMediaType)).EnsureHasMaxLength(maxLength: MediaTypeNameUtilities.MediaTypeNameDefaultMaxLength).EnsureNotEmptyOrWhiteSpace();
//
_streamStore = stream;
_contentMediaType = contentMediaType ?? MediaTypeNameUtilities.AppOctetStream;
}
public ServiceProviderHandler(ArgumentUtilitiesHandle <IServiceProvider> serviceProvider)
{
serviceProvider.EnsureNotNull();
//
_serviceProvider = serviceProvider.Value;
_serviceScope = null;
_hasServiceScope = false;
}
public DependencyScope(IOuterDependencyScopeGetter outerScopeGetter, IDependencyExporter exporter, bool ownsExporter = default, bool prohibitNewInstanceRequest = default, object owner = default)
{
outerScopeGetter.EnsureNotNull(nameof(outerScopeGetter));
//
_outerScopeGetter = outerScopeGetter.ToValueHolder(ownsValue: false);
_prohibitNewInstanceRequest = prohibitNewInstanceRequest;
P_CtorInitializer(exporter: exporter, ownsDependencyExporter: ownsExporter, owner: owner);
}
public DisposableLazy(Func <T> factory, bool ownsValue)
{
factory.EnsureNotNull(nameof(factory));
//
_identity = new object();
_factory = factory;
_ownsValue = ownsValue;
_valueHolder = null;
}
protected override void Dispose(bool explicitDispose)
{
if (explicitDispose)
{
_embeddedMetadata?.Dispose();
}
_embeddedMetadata = null;
//
base.Dispose(explicitDispose);
}
static Task P_DefaultRelease(IVh <T> instance)
{
try {
instance?.Dispose();
return(TaskUtilities.FromVoidResult());
}
catch (Exception exception) {
return(TaskUtilities.FromError(exception));
}
}
public ServiceProviderHandler(ArgumentUtilitiesHandle <IServiceScope> serviceScope, bool ownsServiceScope = default)
{
var locServiceScope = serviceScope.EnsureNotNull().Value;
var locServiceProvider = locServiceScope.ServiceProvider.ArgProp($"{nameof(serviceScope)}.{nameof(serviceScope.Value.ServiceProvider)}").EnsureNotNull().Value;
//
_serviceProvider = locServiceProvider;
_serviceScope = locServiceScope.ToValueHolder(ownsValue: ownsServiceScope);
_hasServiceScope = true;
}
protected override void Dispose(bool explicitDispose)
{
if (explicitDispose)
{
_payload?.Dispose();
}
_payload = null;
//
base.Dispose(explicitDispose);
}
protected override void Dispose(bool explicitDispose)
{
if (explicitDispose)
{
_streamStore?.Dispose();
}
_streamStore = null;
_contentMediaType = null;
//
base.Dispose(explicitDispose);
}
protected override void Dispose(bool explicitDispose)
{
if (explicitDispose)
{
_realHolder?.Dispose();
_disposeRegistry?.Dispose();
}
_realHolder = null;
_disposeRegistry = null;
//
base.Dispose(explicitDispose);
}
protected override void Dispose(bool explicitDispose)
{
if (explicitDispose)
{
_sharedInstanceInitializationLock?.Dispose();
_sharedInstanceStore?.Dispose();
}
_sharedInstanceInitializationLock = null;
_sharedInstanceStore = null;
//
base.Dispose(explicitDispose);
}
public DependencyScope(ArgumentUtilitiesHandle <IServiceProviderHandler> outerServiceProvider, bool ownsOuterServiceProvider = default)
{
outerServiceProvider.EnsureNotNull();
//
_outerScopeGetter = new DefaultOuterDependencyScopeGetter(outerScope: null).ToValueHolder(ownsValue: true);
_prohibitNewInstanceRequest = false;
P_CtorInitializer(
exporter: new DefaultDependencyExporter(handler: outerServiceProvider.Value, ownsHandler: ownsOuterServiceProvider),
ownsDependencyExporter: true,
outerServiceProvider: outerServiceProvider.Value.ServiceProvider,
owner: null);
}
public EmbeddedMetadataTreeElement(IMetadataTreeNode node, IMetadata embeddedMetadata, bool ownsEmbeddedMetadata, bool linkEmbeddedMetadata = false, ReadOnlyStateTag readOnlyState = null)
: base(node: node, readOnlyState: readOnlyState)
{
//
embeddedMetadata.EnsureNotNull(nameof(embeddedMetadata));
//
_embeddedMetadata = embeddedMetadata.ToValueHolder(ownsEmbeddedMetadata);
//
if (linkEmbeddedMetadata)
{
SetMetadata(new Link <IMetadataTreeElement, IVh <IMetadata> >(this, embeddedMetadata.ToValueHolder()));
}
}
protected override void Dispose(bool explicitDispose)
{
if (explicitDispose)
{
_specs?.Dispose();
_involvedHandlerSpinLock?.EnterAndExitLock();
_involvedHandlerChain?.Clear();
_involvedHandlerCounters?.Clear();
}
_involvedHandlerCounters = null;
_involvedHandlerChain = null;
_involvedHandlerSpinLock = null;
_scope = null;
_specs = null;
//
base.Dispose(explicitDispose);
}
public DependencyResolutionContext(IDependencyScope scope, IDependencyResolutionSpecs specs, bool ownsSpecs = default, bool?isAdvancedLoggingEnabled = default)
{
scope.EnsureNotNull(nameof(scope));
specs.EnsureNotNull(nameof(specs));
//
_sequentialId = DependencyUtilities.NextResolutionContextSequentialId();
_scope = scope;
_specs = specs.ToValueHolder(ownsValue: ownsSpecs);
_involvedHandlerCounters = new Dictionary <IDependencyHandler2, int>(comparer: ReferenceEqualityComparer <IDependencyHandler2> .Instance);
_involvedHandlerChain = new List <IDependencyHandler2>();
_involvedHandlerSpinLock = new PrimitiveSpinLock();
//
var resolutionSettings = DependencyUtilities.DefaultResolutionSettings;
_usageCountLimitPerHandler = resolutionSettings.UsageCountLimitPerHandler;
_isAdvancedLoggingEnabled = isAdvancedLoggingEnabled ?? resolutionSettings.IsAdvancedLoggingEnabled;
}
void P_CtorInitializer(IDependencyExporter exporter, bool ownsDependencyExporter = default, IServiceProvider outerServiceProvider = default, object owner = default)
{
exporter.EnsureNotNull(nameof(exporter));
//
_exporter = exporter.ToValueHolder(ownsDependencyExporter);
_owner = owner;
//
_resolutionModelLazy =
new DisposableLazy <IDependencyResolutionModel <DependencyScope> >(
factory: () => new DependencyResolutionModel <DependencyScope>(scope: this, handlerChainSource: ReadDA(ref _exporter, considerDisposeRequest: true).Value.ExportDependencies()),
ownsValue: true);
//
_newDependencyInstancesDisposeRegistry = new DisposeRegistry();
//
_runningResolutionsSpinLock = new PrimitiveSpinLock();
_runningResolutionsUniqueness = new HashSet <IDependencyResolutionContext>(comparer: ReferenceEqualityComparer <IDependencyResolutionContext> .Instance);
_runningResolutionsSequence = new List <IDependencyResolutionContext>();
//
_serviceProviderApi = outerServiceProvider ?? new P_ServiceProviderApi(scope: this);
}
public DependencyScope(IDependencyScope outerScope, IDependencyExporter exporter, bool ownsExporter = default, bool prohibitNewInstanceRequest = default, object owner = default)
{
_outerScopeGetter = new DefaultOuterDependencyScopeGetter(outerScope: outerScope).ToValueHolder(ownsValue: true);
_prohibitNewInstanceRequest = prohibitNewInstanceRequest;
P_CtorInitializer(exporter: exporter, ownsDependencyExporter: ownsExporter, owner: owner);
}
public static TValue GetOrDefault <TValue>(this IVh <TValue> vs) => vs is null ? default : vs.ValueDisposeTolerant;
// TODO: Put strings into the resources.
//
public Task <IVh <T> > AcquireAsync(IContext context = default)
{
try {
var existingTask = itrlck.Get(ref _acquireTask);
var ct = context?.Ct() ?? CancellationToken.None;
if (existingTask is null)
{
var newTaskProxy = default(TaskCompletionSource <IVh <T> >);
try {
newTaskProxy = new TaskCompletionSource <IVh <T> >(creationOptions: TaskCreationOptions.RunContinuationsAsynchronously);
if (itrlck.UpdateIfNullBool(location: ref _acquireTask, value: newTaskProxy.Task, current: out existingTask))
{
if (itrlck.Get(ref _releaseTask) is null)
{
existingTask
.ContinueWith(
continuationAction: t => itrlck.SetNull(location: ref _acquireTask, comparand: t),
continuationOptions: TaskContinuationOptions.ExecuteSynchronously | TaskContinuationOptions.NotOnRanToCompletion);
doAcquireAsync(locContext: context).ContinueWithTryApplyResultTo(taskProxy: newTaskProxy);
}
else
{
newTaskProxy.TrySetException(exception: new EonException(message: $"Invalid acquisition attempt. Release operation has been attempted already.{Environment.NewLine}\tLease ID:{_id.FmtStr().GNLI2()}"));
}
return(existingTask);
}
else
{
return(existingTask.WaitResultAsync(ct: ct));
}
}
catch (Exception exception) {
if (newTaskProxy?.TrySetException(exception) == true)
{
return(newTaskProxy.Task);
}
else
{
throw;
}
}
finally {
if (!ReferenceEquals(newTaskProxy.Task, existingTask))
{
newTaskProxy.TrySetCanceled();
}
}
}
else
{
return(existingTask.WaitResultAsync(ct: ct));
}
}
catch (Exception exception) {
return(TaskUtilities.FromError <IVh <T> >(exception));
}
//
async Task <IVh <T> > doAcquireAsync(IContext locContext)
{
var locAcquire = itrlck.Get(ref _acquire);
var locRelease = itrlck.Get(ref _release);
if (itrlck.Get(ref _releaseTask) is null)
{
try {
IVh <T> locAcquired = default;
try {
locAcquired = await locAcquire(arg : locContext).ConfigureAwait(false);
if (locAcquired is null)
{
throw new EonException(message: $"Instance acquisition method has returned invalid value '{locAcquired.FmtStr().G()}'.{Environment.NewLine}\tLease ID:{_id.FmtStr().GNLI2()}");
}
_acquireDateTime = DateTimeOffset.Now;
_logger
?.LogDebug(
eventId: LeasableEventIds.LeaseStart,
message: $"Lease started.{Environment.NewLine}\tLease ID:{Environment.NewLine}\t\t{{lease_id}}{Environment.NewLine}\tCorrelation ID:{Environment.NewLine}\t\t{{correlation_id}}",
args: new object[] { _id.ToString(), locContext?.FullCorrelationId.ToString() });
return(locAcquired);
}
catch (Exception locException) {
if (!(locAcquired is null))
{
try {
await locRelease(arg : locAcquired).ConfigureAwait(false);
}
catch (Exception locSecondException) {
throw new AggregateException(locException, locSecondException);
}
}
throw;
}
}
catch (Exception locException) {
try {
_logger
?.LogWarning(
eventId: LeasableEventIds.LeaseStart,
exception: locException,
message: $"Lease start error.{Environment.NewLine}\tLease ID:{Environment.NewLine}\t\t{{lease_id}}{Environment.NewLine}\tCorrelation ID:{Environment.NewLine}\t\t{{correlation_id}}",
args: new object[] { _id.ToString(), locContext?.FullCorrelationId.ToString() });
}
catch (Exception locSecondException) {
throw new AggregateException(locException, locSecondException);
}
throw;
}
}
else
{
throw new EonException(message: $"Invalid lease start attempt. Lease end has been attempted already.{Environment.NewLine}\tLease ID:{_id.FmtStr().GNLI2()}");
}
}
}
protected virtual void BuildDependencyExporter(IOuterDependencyScopeGetter outerScopeGetter, out IVh <IDependencyExporter> exporter) => exporter = new P_DelegatedDependencyExporter(export: LocalDependencies).ToValueHolder(ownsValue: true);
public DisposableLazy(T value)
{
_identity = null;
_factory = null;
_valueHolder = value.ToValueHolder(ownsValue: false);
}
internal P_HolderWithDisposeRegistry(T value, IEnumerable <IDisposable> disposables)
{
_realHolder = value.ToValueHolder(ownsValue: true);
_disposeRegistry = new DisposeRegistry(disposables: disposables);
}
protected virtual void BuildDependencyExporter(IOuterDependencyScopeGetter outerScope, out IVh <IDependencyExporter> exporter)
{
outerScope.EnsureNotNull(nameof(outerScope));
//
exporter = outerScope.GetOuterScope().ResolveDependency <IMetadataDependencyExporterBuilder>(ensureResolution: true).BuildFor(metadata: this);
}
public abstract void Invoke(StatefulSynchronizationContext <TCtxState> ctx, IVh <TCtxState> ctxState);
protected override void BuildDependencyExporter(IOuterDependencyScopeGetter outerScope, out IVh <IDependencyExporter> exporter) => ReadDA(ref _metadata).BuildDependencyExporter(outerScope: outerScope, out exporter);
static void P_Loop(object state)
{
var startState = state.EnsureNotNull(nameof(state)).EnsureOfType <P_LoopStartState>().Value;
//
var ctx = startState.Context;
IUnhandledExceptionObserver unhandledExceptionObserver;
IRunControl runControl;
CancellationToken ct;
Func <CancellationToken, IVh <TCtxState> > stateFactory;
ManualResetEventSlim awakeLoopEvent;
Queue <P_InvokeItemBase> queue;
PrimitiveSpinLock queueSpinLock;
try {
unhandledExceptionObserver = ctx.P_UnhandledExceptionObserver;
runControl = ctx.RunControl;
ct = ctx.P_Ct;
stateFactory = ctx.P_StateFactory;
awakeLoopEvent = ctx.P_AwakeLoopEvent;
queue = ctx.P_InvokeQueue;
queueSpinLock = ctx.P_InvokeQueueSpinLock;
}
catch (ObjectDisposedException) {
return;
}
var bypassUnhandledExceptionObserver = false;
try {
Exception caughtException1 = default;
try {
ctx.P_IsLoopAlive = true;
startState.LoopStartedEvent.Set();
//
IVh <TCtxState> ctxState = default;
Exception caughtException2 = default;
try {
// Создание объекта состояния контекста.
//
try {
ctxState = stateFactory(arg: ct);
}
catch (Exception exception) {
ctxState = new Vh <TCtxState>(exception: exception);
}
// Цикл обработки очереди.
//
for (; ;)
{
if (runControl.HasStopRequested || ct.IsCancellationRequested)
{
break;
}
//
P_InvokeItemBase queueItem = default;
try {
queueItem = queueSpinLock.Invoke(() => queue.Count > 0 ? queue.Dequeue() : null);
if (!(queueItem is null))
{
if (queueItem.IsInvokeCompleted)
{
continue;
}
else
{
try {
itrlck.Set(ref ctx._currentInvoke, queueItem);
queueItem.Invoke(ctx: ctx, ctxState: ctxState);
}
catch (Exception exception) {
if (bypassUnhandledExceptionObserver)
{
throw;
}
else
{
bool isExceptionObserved;
try {
isExceptionObserved = unhandledExceptionObserver.ObserveException(exception: exception, component: queueItem);
}
catch (Exception secondException) {
bypassUnhandledExceptionObserver = true;
throw new AggregateException(exception, secondException);
}
if (!isExceptionObserved)
{
bypassUnhandledExceptionObserver = true;
throw;
}
}
}
}
finally {
itrlck.SetNull(ref ctx._currentInvoke, queueItem);
}
continue;
}
}
catch (Exception exception) {
try { queueItem.TrySetInvokeResultAsCanceled(); }
catch (Exception secondException) {
throw new AggregateException(exception, secondException);
}
throw;
}
// Ожидание.
//
if (awakeLoopEvent.IsSet)
{
awakeLoopEvent.Reset();
}
else
{
awakeLoopEvent.Wait(millisecondsTimeout: 937);
}
}
}
catch (Exception exception) {
caughtException2 = exception;
throw;
}
finally {
ctxState?.Dispose(exception: caughtException2);
}
}
