Struct Limits 

pub struct Limits {
    pub allowed_markets: Option<HashSet<String>>,
    pub allowed_symbols: Option<HashSet<String>>,
    pub max_order_value: Option<f64>,
    pub max_daily_value: Option<f64>,
    pub hours_window: Option<String>,
    pub max_orders_per_minute: Option<u32>,
    pub allowed_trd_sides: Option<HashSet<String>>,
}

限额配置（与 KeyRecord 字段平级，独立出来便于传递）

Fields

allowed_markets: Option<HashSet<String>>

allowed_symbols: Option<HashSet<String>>

max_order_value: Option<f64>

max_daily_value: Option<f64>

hours_window: Option<String>

max_orders_per_minute: Option<u32>

每分钟下单次数上限（滑动窗口，None 表示不限）。挡 spray-and-pray 类攻击：即使每单小于 max_order_value、日累计也够，也限制速率。

allowed_trd_sides: Option<HashSet<String>>

允许的交易方向白名单：例如 ["SELL"] = 只让平仓 bot 卖； None / 空集 → 不限。大小写敏感，用 "BUY" / "SELL" / "SELL_SHORT" / "BUY_BACK"。

Trait Implementations

impl Clone for Limits

fn clone(&self) -> Limits

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Limits

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Limits

fn default() -> Limits

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Limits

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for Limits

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.