Crate logcontrol_tracing 

A LogControl1 implementation for tracing.

TracingLogControl1 provides a LogControl1 implementation on top of tracing, which uses the reload layer to dyanmically switch layers and level filters when the log target or log level are changed over the log control interfaces.

It uses a LogControl1LayerFactory implementation to create the log target layers each time the log target is changed. This crates provides a default PrettyLogControl1LayerFactory which uses the pretty format of tracing_subscriber on stdout for the console target and tracing_journald for the Journal target. You can provide your own implementation to customize the layer for each target.

When created TracingLogControl1 additionally returns a layer which needs to be added to the global tracing subscriber, i.e. a tracing_subscriber::Registry, for log control to have any effect.

use logcontrol::*;
use logcontrol_tracing::*;
use tracing_subscriber::prelude::*;

let (control, layer) = TracingLogControl1::new_auto(
    PrettyLogControl1LayerFactory,
    tracing::Level::INFO,
).unwrap();

let subscriber = tracing_subscriber::Registry::default().with(layer);
tracing::subscriber::set_global_default(subscriber).unwrap();
// Then register `control` over DBus, e.g. via `logcontrol_zbus::LogControl1`.

Re-exports

pub use logcontrol;

Structs

PrettyLogControl1LayerFactory

A layer factory which uses pretty printing on stdout for the console target.

TracingLogControl1

A LogControl1 implementation for tracing.

Traits

LogControl1LayerFactory

A factory to create layers for TracingLogControl1.

Functions

from_log_level

Convert logcontrol::LogLevel to tracing::Level.

stderr_connected_to_journal

Whether the current process is directly connected to the systemd journal.

syslog_identifier

Determine the syslog identifier for this process.

Type Aliases

LogControl1Layer

The final type for the layer that implements the log control interface.

LogTargetLayer

The type of the layer that implements the log target.