AsyncLogSink
Defines one concrete safe mutable diagnostic-record sink. A sink may retain input through terminal WriteAsync completion, and retains neither message view nor record input afterward. Implementations document allocation, blocking, synchronization and failures. No runtime dictionary or global logger is created by concept satisfaction.
Module std.logging
import std.logging;Public declaration contracts and authored examples. A page can document several related symbols. Implementation bodies are excluded.
AsyncLogSink
pub concept AsyncLogSink<Self>Defines one concrete safe mutable diagnostic-record sink. A sink may retain input through terminal WriteAsync completion, and retains neither message view nor record input afterward. Implementations document allocation, blocking, synchronization and failures. No runtime dictionary or global logger is created by concept satisfaction. Self: Concrete sink representation, owned by its caller or AsyncLogger.
AsyncLogSink.WriteAsync
requires fn WriteAsync(Level: LogLevel, Message: str, Token: CancellationToken) -> Task<Result<void, IoError>>;Submits one enabled diagnostic record. Level: Severity; ordinary callers never submit Off. Message: UTF-8 backing retained through terminal task cleanup. Token: Owned cooperative cancellation observation. Return: Task yielding complete submission or typed failure, including any partial prefix.
AsyncLogSink.FlushAsync
requires fn FlushAsync(Token: CancellationToken) -> Task<Result<void, IoError>>;Propagates previously accepted records through downstream layers. Token: Owned cooperative cancellation observation. Return: Task yielding complete propagation or typed failure; no durability promise.