Struct CerrWrite 

pub struct CerrWrite { /* private fields */ }

A factory for creating loggers that write directly to the standard error (stderr).

CerrWrite provides a high-level builder for console logging. This is the recommended choice for professional CLI applications, as it ensures that diagnostic information (logs) does not interfere with the primary data stream sent to stdout.

Default Configuration

• Max Retries: 3 (Resilience against transient I/O blocks or terminal pressure).
• Worker Count: 1 (Ensures logs appear in strict chronological order).

Implementations

impl CerrWrite

pub fn get_max_retries(&self) -> usize

Returns the currently configured maximum retry attempts.

pub fn get_worker_count(&self) -> usize

Returns the currently configured background worker count.

pub fn max_retries(self, max_retries: usize) -> Self

Updates the maximum number of retry attempts for the stderr service.

Useful if the error stream is being redirected to a file or pipe that may experience intermittent congestion.

pub fn worker_count(self, worker_count: usize) -> Self

Updates the background worker count for asynchronous error logging.

Note: Using a worker count of 1 is strongly advised for stderr to prevent terminal interleaving and preserve message order.

pub fn build(self, concurrency: Concurrency) -> Logger

Finalizes the logger using the StandardWriteMessageFormatter and a Concurrency strategy.

pub fn build_with_formatter<MF>( self, concurrency: Concurrency, formatter: MF, ) -> Logger

where MF: WriteMessageFormatter + 'static,

Finalizes the logger using a custom WriteMessageFormatter and a Concurrency strategy.

This is frequently used to apply “error red” ANSI styling or specialized headers specifically for diagnostic output.

pub fn build_impl_direct(self) -> Box<DirectLogger>

Builds the underlying DirectLogger implementation for stderr.

pub fn build_impl_queued(self) -> Box<QueuedLogger>

Builds the underlying QueuedLogger implementation for stderr.

pub fn build_impl_direct_with_formatter<MF>( self, formatter: MF, ) -> Box<DirectLogger>

where MF: WriteMessageFormatter + 'static,

Builds a DirectLogger with a specific formatter for stderr.

pub fn build_impl_queued_with_formatter<MF>( self, formatter: MF, ) -> Box<QueuedLogger>

where MF: WriteMessageFormatter + 'static,

Builds a QueuedLogger with a specific formatter for stderr.

pub fn build_service_with_formatter<MF>( self, formatter: MF, ) -> Box<CerrWrite<MF>>

where MF: WriteMessageFormatter + 'static,

Internal helper to construct the service::CerrWrite service with a custom formatter.

pub fn build_service(self) -> Box<CerrWrite<StandardWriteMessageFormatter>>

Internal helper to construct the service::CerrWrite service with the standard formatter.

Trait Implementations

impl Default for CerrWrite

fn default() -> Self

Provides sensible defaults for error console logging.

• max_retries: 3
• worker_count: 1 (Preserves sequential terminal output).