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TracingTelemetry

Struct TracingTelemetry 

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pub struct TracingTelemetry;
Expand description

基于 tracing 的默认遥测实现。

使用结构化日志字段输出事件生命周期信息。

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impl Telemetry for TracingTelemetry

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fn on_publish(&self, event_name: &str, receivers: usize)

事件发布时调用。
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fn on_publish_complete(&self, event_name: &str, elapsed: Duration)

事件发布完成后调用。
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fn on_subscribe(&self, event_name: &str, sub_id: usize)

订阅者注册时调用。
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fn on_handler_start(&self, event_name: &str, sub_id: usize)

Handler 执行前调用。
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fn on_handler_complete( &self, event_name: &str, sub_id: usize, elapsed: Duration, error: Option<&str>, )

Handler 执行完成后调用。error 为 Some 表示 handler 返回了错误。
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fn on_handler_lagged( &self, event_name: &str, sub_id: usize, lagged_count: usize, )

Handler 滞后时调用(broadcast channel lagged)。

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