/// <summary>
/// 进入一个日志范畴
/// </summary>
/// <param name="scope">要进入的日志范畴</param>
/// <returns></returns>
public static LogScope EnterScope(LogScope scope)
{
if (scope == null)
{
throw new ArgumentNullException("scope");
}
if (scope.Parent != null)
{
throw new InvalidOperationException("无法进入这个范畴，因为这个范畴已经被使用");
}
scope.Parent = CurrentScope;
return(CurrentScope = scope);
}
/// <summary>
/// 离开指定的范畴，若指定范畴在当前上下文不存在，则不进行任何操作，并返回 null 。
/// </summary>
/// <param name="scope">要离开的范畴</param>
/// <returns></returns>
public static LogScope LeaveScope(LogScope scope)
{
if (scope == null)
{
throw new ArgumentNullException("scope");
}
var current = CurrentScope;
while (current != scope)
{
current._leaved = true;
current = current.Parent;
if (current == null)
{
return(null);
}
}
return(CurrentScope = current.Parent);
}
/// <summary>
/// 离开指定的范畴，若指定范畴在当前上下文不存在，则不进行任何操作，并返回 null 。
/// </summary>
/// <param name="scope">要离开的范畴</param>
/// <returns></returns>
public static LogScope LeaveScope( LogScope scope )
{
if ( scope == null )
throw new ArgumentNullException( "scope" );
var current = CurrentScope;
while ( current != scope )
{
current._leaved = true;
current = current.Parent;
if ( current == null )
return null;
}
return CurrentScope = current.Parent;
}
/// <summary>
/// 进入一个日志范畴
/// </summary>
/// <param name="scope">要进入的日志范畴</param>
/// <returns></returns>
public static LogScope EnterScope( LogScope scope )
{
if ( scope == null )
throw new ArgumentNullException( "scope" );
if ( scope.Parent != null )
throw new InvalidOperationException( "无法进入这个范畴，因为这个范畴已经被使用" );
scope.Parent = CurrentScope;
return CurrentScope = scope;
}