internal ExecutionContextScope BeginExecutionContextScope()
{
var parentScope = this.CurrentScope;
var scope = new ExecutionContextScope(this, parentScope);
this.CurrentScope = scope;
return scope;
}
internal ExecutionContextScope BeginExecutionContextScope()
{
var parentScope = this.CurrentScope;
var scope = new ExecutionContextScope(this, parentScope);
this.CurrentScope = scope;
return(scope);
}
internal void EndExecutionContextScope(ExecutionContextScope scope)
{
// If the scope is not the current scope or one of its ancestors, this means that either one of
// the scope's parents have already been disposed, or the scope is disposed on a completely
// unrelated thread. In both cases we shouldn't change the CurrentScope, since doing this,
// since would cause an invalid scope to be registered as the current scope (this scope will
// either be disposed or does not belong to the current execution context).
if (this.IsScopeInLocalChain(scope))
{
this.CurrentScopeInternal = scope.ParentScope;
}
}
internal void EndExecutionContextScope(ExecutionContextScope scope)
{
// If the scope is not the current scope or one of its ancestors, this means that either one of
// the scope's parents have already been disposed, or the scope is disposed on a completely
// unrelated thread. In both cases we shouldn't change the CurrentScope, since doing this,
// since would cause an invalid scope to be registered as the current scope (this scope will
// either be disposed or does not belong to the current execution context).
if (scope.IsCurrentScopeOrAncestor)
{
this.CurrentScope = scope.ParentScope;
}
}
// Determines whether this instance is the currently registered execution context scope or an ancestor
// of it.
private bool IsScopeInLocalChain(ExecutionContextScope scope)
{
var currentScope = this.CurrentScopeInternal;
while (currentScope != null)
{
if (object.ReferenceEquals(scope, currentScope))
{
return true;
}
currentScope = currentScope.ParentScope;
}
return false;
}
// Determines whether this instance is the currently registered execution context scope or an ancestor
// of it.
private bool IsScopeInLocalChain(ExecutionContextScope scope)
{
var currentScope = this.CurrentScopeInternal;
while (currentScope != null)
{
if (object.ReferenceEquals(scope, currentScope))
{
return(true);
}
currentScope = currentScope.ParentScope;
}
return(false);
}
internal ExecutionContextScopeWrapper(ExecutionContextScope scope)
{
this.Scope = scope;
}
internal ExecutionContextScopeWrapper(ExecutionContextScope scope)
{
this.Scope = scope;
}