internal static ExecutionContext Capture(ref StackCrawlMark stackMark, ExecutionContext.CaptureOptions options)
{
ExecutionContext.Reader executionContextReader = Thread.CurrentThread.GetExecutionContextReader();
if (executionContextReader.IsFlowSuppressed)
{
return((ExecutionContext)null);
}
SecurityContext securityContext = SecurityContext.Capture(executionContextReader, ref stackMark);
HostExecutionContext executionContext1 = HostExecutionContextManager.CaptureHostExecutionContext();
SynchronizationContext synchronizationContext = (SynchronizationContext)null;
LogicalCallContext logicalCallContext = (LogicalCallContext)null;
if (!executionContextReader.IsNull)
{
if ((options & ExecutionContext.CaptureOptions.IgnoreSyncCtx) == ExecutionContext.CaptureOptions.None)
{
synchronizationContext = executionContextReader.SynchronizationContext == null ? (SynchronizationContext)null : executionContextReader.SynchronizationContext.CreateCopy();
}
if (executionContextReader.LogicalCallContext.HasInfo)
{
logicalCallContext = executionContextReader.LogicalCallContext.Clone();
}
}
Dictionary <IAsyncLocal, object> dictionary = (Dictionary <IAsyncLocal, object>)null;
List <IAsyncLocal> asyncLocalList = (List <IAsyncLocal>)null;
if (!executionContextReader.IsNull)
{
dictionary = executionContextReader.DangerousGetRawExecutionContext()._localValues;
asyncLocalList = executionContextReader.DangerousGetRawExecutionContext()._localChangeNotifications;
}
if ((options & ExecutionContext.CaptureOptions.OptimizeDefaultCase) != ExecutionContext.CaptureOptions.None && securityContext == null && (executionContext1 == null && synchronizationContext == null) && ((logicalCallContext == null || !logicalCallContext.HasInfo) && (dictionary == null && asyncLocalList == null)))
{
return(ExecutionContext.s_dummyDefaultEC);
}
ExecutionContext executionContext2 = new ExecutionContext();
executionContext2.SecurityContext = securityContext;
if (executionContext2.SecurityContext != null)
{
executionContext2.SecurityContext.ExecutionContext = executionContext2;
}
executionContext2._hostExecutionContext = executionContext1;
executionContext2._syncContext = synchronizationContext;
executionContext2.LogicalCallContext = logicalCallContext;
executionContext2._localValues = dictionary;
executionContext2._localChangeNotifications = asyncLocalList;
executionContext2.isNewCapture = true;
return(executionContext2);
}
internal static ExecutionContext Capture(ref StackCrawlMark stackMark, ExecutionContext.CaptureOptions options)
{
ExecutionContext.Reader executionContextReader = Thread.CurrentThread.GetExecutionContextReader();
if (executionContextReader.IsFlowSuppressed)
{
return(null);
}
SecurityContext securityContext = SecurityContext.Capture(executionContextReader, ref stackMark);
HostExecutionContext hostExecutionContext = HostExecutionContextManager.CaptureHostExecutionContext();
SynchronizationContext synchronizationContext = null;
LogicalCallContext logicalCallContext = null;
if (!executionContextReader.IsNull)
{
if ((options & ExecutionContext.CaptureOptions.IgnoreSyncCtx) == ExecutionContext.CaptureOptions.None)
{
synchronizationContext = ((executionContextReader.SynchronizationContext == null) ? null : executionContextReader.SynchronizationContext.CreateCopy());
}
if (executionContextReader.LogicalCallContext.HasInfo)
{
logicalCallContext = executionContextReader.LogicalCallContext.Clone();
}
}
IAsyncLocalValueMap asyncLocalValueMap = null;
IAsyncLocal[] array = null;
if (!executionContextReader.IsNull)
{
asyncLocalValueMap = executionContextReader.DangerousGetRawExecutionContext()._localValues;
array = executionContextReader.DangerousGetRawExecutionContext()._localChangeNotifications;
}
if ((options & ExecutionContext.CaptureOptions.OptimizeDefaultCase) != ExecutionContext.CaptureOptions.None && securityContext == null && hostExecutionContext == null && synchronizationContext == null && (logicalCallContext == null || !logicalCallContext.HasInfo) && asyncLocalValueMap == null && array == null)
{
return(ExecutionContext.s_dummyDefaultEC);
}
ExecutionContext executionContext = new ExecutionContext();
executionContext.SecurityContext = securityContext;
if (executionContext.SecurityContext != null)
{
executionContext.SecurityContext.ExecutionContext = executionContext;
}
executionContext._hostExecutionContext = hostExecutionContext;
executionContext._syncContext = synchronizationContext;
executionContext.LogicalCallContext = logicalCallContext;
executionContext._localValues = asyncLocalValueMap;
executionContext._localChangeNotifications = array;
executionContext.isNewCapture = true;
return(executionContext);
}
internal void Undo()
{
if (this.thread == null)
{
return;
}
Thread thread = this.thread;
if (this.hecsw != null)
{
HostExecutionContextSwitcher.Undo(this.hecsw);
}
ExecutionContext.Reader executionContextReader = thread.GetExecutionContextReader();
ExecutionContext.Reader reader = this.outerEC;
int num = this.outerECBelongsToScope ? 1 : 0;
thread.SetExecutionContext(reader, num != 0);
if (this.scsw.currSC != null)
{
this.scsw.Undo();
}
if (this.wiIsValid)
{
SecurityContext.RestoreCurrentWI(this.outerEC, executionContextReader, this.wi, this.cachedAlwaysFlowImpersonationPolicy);
}
this.thread = (Thread)null;
ExecutionContext.OnAsyncLocalContextChanged(executionContextReader.DangerousGetRawExecutionContext(), this.outerEC.DangerousGetRawExecutionContext());
}
internal static ExecutionContextSwitcher SetExecutionContext(ExecutionContext executionContext, bool preserveSyncCtx)
{
StackCrawlMark stackMark = StackCrawlMark.LookForMyCaller;
ExecutionContextSwitcher executionContextSwitcher = new ExecutionContextSwitcher();
Thread currentThread = Thread.CurrentThread;
ExecutionContext.Reader executionContextReader = currentThread.GetExecutionContextReader();
executionContextSwitcher.thread = currentThread;
executionContextSwitcher.outerEC = executionContextReader;
executionContextSwitcher.outerECBelongsToScope = currentThread.ExecutionContextBelongsToCurrentScope;
if (preserveSyncCtx)
{
executionContext.SynchronizationContext = executionContextReader.SynchronizationContext;
}
executionContext.SynchronizationContextNoFlow = executionContextReader.SynchronizationContextNoFlow;
currentThread.SetExecutionContext(executionContext, true);
RuntimeHelpers.PrepareConstrainedRegions();
try
{
ExecutionContext.OnAsyncLocalContextChanged(executionContextReader.DangerousGetRawExecutionContext(), executionContext);
SecurityContext securityContext1 = executionContext.SecurityContext;
if (securityContext1 != null)
{
SecurityContext.Reader securityContext2 = executionContextReader.SecurityContext;
executionContextSwitcher.scsw = SecurityContext.SetSecurityContext(securityContext1, securityContext2, false, ref stackMark);
}
else if (!SecurityContext.CurrentlyInDefaultFTSecurityContext(executionContextSwitcher.outerEC))
{
SecurityContext.Reader securityContext2 = executionContextReader.SecurityContext;
executionContextSwitcher.scsw = SecurityContext.SetSecurityContext(SecurityContext.FullTrustSecurityContext, securityContext2, false, ref stackMark);
}
HostExecutionContext executionContext1 = executionContext.HostExecutionContext;
if (executionContext1 != null)
{
executionContextSwitcher.hecsw = HostExecutionContextManager.SetHostExecutionContextInternal(executionContext1);
}
}
catch
{
executionContextSwitcher.UndoNoThrow();
throw;
}
return(executionContextSwitcher);
}