Struct WasmPluginTable 

pub struct WasmPluginTable { /* private fields */ }

Lazily activates verified Wasm plugins in explicitly retained slots. 仅在显式保留的槽中懒加载已验证 Wasm 插件。

Implementations

impl WasmPluginTable

pub fn new(slots: &'static [WasmPluginSlot]) -> Result<Self, HostError>

Build a table over the default backend, rejecting malformed slot definitions. 在默认后端上建表，并拒绝非法的槽定义。

pub fn with_backend( slots: &'static [WasmPluginSlot], backend: WasmBackend, ) -> Result<Self, HostError>

Build a table with an explicit backend so callers can supply their own limits. 用显式后端建表，便于调用方提供自己的限制。

pub fn install( &self, slot: &str, channel: ValidationChannel, artifact: VerifiedPluginArtifact, ) -> Result<u64, HostError>

Queue verified bytes without compiling or instantiating them. 挂起已验证字节，不在安装阶段编译或实例化。

pub fn call( &self, slot: &str, operation: &str, input: &[u8], ) -> Result<Vec<u8>, HostError>

Activate a pending generation on demand, then invoke it. 首次使用时激活待发布代，再执行调用。

pub fn is_loaded(&self, slot: &str) -> Result<bool, HostError>

Report whether the slot has an active generation and nothing pending. 报告该槽是否已有激活代际且没有待处理代际。

pub fn generation(&self, slot: &str) -> Result<Option<u64>, HostError>

Return the active generation, or None while the slot is not yet activated. 返回激活代际；槽尚未激活时返回 None。

pub fn activation_error(&self, slot: &str) -> Result<Option<String>, HostError>

Report why the last activation attempt failed. 报告上一次激活尝试失败的原因。

None means the last attempt succeeded or no pending generation has been activated yet. The report exists because a failed activation changes nothing a poller can already see: active keeps the previous generation, so is_loaded stays true and generation keeps returning the old number while every later call fails. Silence was the one answer a readiness poll could not act on. None 表示上次尝试成功，或还没有待发布代被激活过。之所以需要这份报告：激活失败不会 改变轮询方已经能看到的东西——active 仍是上一代，因此 is_loaded 保持 true、 generation 继续返回旧编号，而此后每次调用都失败。沉默正是就绪轮询唯一无法据以行动的 回报。