static ObjectPool()
{
var setting = new ObjectPoolSettingItem()
{
PoolType = typeof(MemoryStream),
Creator = () => new MemoryStream(),
EnterPool = c =>
{
((MemoryStream)c).SetLength(0);
return(true);
}
};
_StaticRegisters.TryAdd(setting.PoolType, setting);
setting = new ObjectPoolSettingItem()
{
PoolType = typeof(StringBuilder),
Creator = () => new StringBuilder(),
EnterPool = c =>
{
((StringBuilder)c).Clear();
return(true);
}
};
_StaticRegisters.TryAdd(setting.PoolType, setting);
}
static ObjectPoolSettingItem OnPoolRegister()
{
var result = new ObjectPoolSettingItem()
{
PoolType = typeof(ClearHelper),
Creator = () => new ClearHelper(),
EnterPool = c =>
{
ClearHelper clearHelper = (ClearHelper)c;
clearHelper._Actions.Clear();
clearHelper.disposedValue = false;
return(true);
},
};
return(result);
}
static public ObjectPoolSettingItem GetDefaultSetting(Type type)
{
ObjectPoolSettingItem setting;
var mi = type.GetMethods(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Static).SingleOrDefault(c => typeof(ObjectPoolSettingItem) == c.ReturnType && null != Attribute.GetCustomAttribute(c, typeof(OnPoolRegisterAttribute)));
if (null != mi)
{
setting = (ObjectPoolSettingItem)mi.Invoke(null, Array.Empty <object>());
}
else
{
setting = new ObjectPoolSettingItem()
{
PoolType = type,
Creator = () => TypeDescriptor.CreateInstance(null, type, null, null),
};
mi = type.GetMethods(BindingFlags.Public | BindingFlags.NonPublic).SingleOrDefault(c => typeof(bool) == c.ReturnType && null != Attribute.GetCustomAttribute(c, typeof(OnPoolEnteringAttribute)));
if (null != mi)
{
setting.EnterPool = c => (bool)mi.Invoke(c, Array.Empty <object>());
}
}
return(setting);
}
/// <summary>
/// 提前静态注册的类型。
/// </summary>
/// <param name="settingItem">注册之后再修改此对象引用不会导致行为变化，此函数使用深表复制记录一个副本。</param>
/// <returns>成功注册则返回true,已经注册则返回false。</returns>
static public bool Register(ObjectPoolSettingItem settingItem)
{
var result = _StaticRegisters.TryAdd(settingItem.PoolType, (ObjectPoolSettingItem)settingItem.Clone());
return(result);
}