/// <summary>
/// 获取可释放对象列表
/// </summary>
/// <param name="serviceScope">范围容器</param>
/// <returns>可释放对象列表</returns>
private static IList <IDisposable> GetDisposableInstances(IServiceScope serviceScope)
{
#region # 验证
if (serviceScope == null)
{
return(new List <IDisposable>());
}
#endregion
IList <IDisposable> disposables = new List <IDisposable>();
Type serviceScopeType = serviceScope.GetType();
#if NET45
const string scopeProviderFieldName = "_scopedProvider";
const string transientDisposablesFieldName = "_transientDisposables";
FieldInfo scopeProviderField = serviceScopeType.GetField(scopeProviderFieldName, BindingFlags.NonPublic | BindingFlags.Instance);
object scopeProvider = scopeProviderField?.GetValue(serviceScope);
Type scopeProviderType = scopeProvider?.GetType();
FieldInfo transientDisposablesField = scopeProviderType?.GetField(transientDisposablesFieldName, BindingFlags.NonPublic | BindingFlags.Instance);
if (transientDisposablesField?.GetValue(scopeProvider) is List <IDisposable> list)
{
disposables = list;
}
#else
const string disposablesFieldName = "_disposables";
FieldInfo disposablesField = serviceScopeType.GetField(disposablesFieldName, BindingFlags.NonPublic | BindingFlags.Instance);
if (disposablesField?.GetValue(serviceScope) is List <object> list)
{
disposables = list.Select(x => (IDisposable)x).ToList();
}
#endif
return(disposables);
}
/// <summary>
/// 范围容器是否已被释放
/// </summary>
/// <param name="serviceScope">范围容器</param>
/// <returns>是否已被释放</returns>
public static bool Disposed(this IServiceScope serviceScope)
{
#region # 验证
if (serviceScope == null)
{
return(true);
}
#endregion
bool disposed;
Type type = serviceScope.GetType();
#if NET45
const string scopedProviderFieldName = "_scopedProvider";
const string disposeCalledFieldName = "_disposeCalled";
FieldInfo scopedProviderField = type.GetField(scopedProviderFieldName, BindingFlags.NonPublic | BindingFlags.Instance);
object scopedProvider = scopedProviderField.GetValue(serviceScope);
Type scopedProviderType = scopedProviderField.FieldType;
FieldInfo disposeCalledField = scopedProviderType.GetField(disposeCalledFieldName, BindingFlags.NonPublic | BindingFlags.Instance);
object value = disposeCalledField.GetValue(scopedProvider);
disposed = (bool)value;
#else
const string disposedFieldName = "_disposed";
FieldInfo disposedField = type.GetField(disposedFieldName, BindingFlags.NonPublic | BindingFlags.Instance);
object value = disposedField.GetValue(serviceScope);
disposed = (bool)value;
#endif
return(disposed);
}