Struct LoggingConfig 

pub struct LoggingConfig {
    pub default_env_filter: String,
    pub pretty_stdout: bool,
    pub enable_hft_layer: bool,
    pub hft_log_dir: PathBuf,
    pub hft_log_prefix: String,
    pub hft_target: String,
    pub hft_level: Level,
}

Configuration for the multi-layer logging system.

Fields

default_env_filter: String

Default RUST_LOG filter string if RUST_LOG env var is not set. Example: "info,janus=debug,janus::hft=off"

pretty_stdout: bool

Whether to use the .pretty() formatter for stdout (multi-line, coloured). Set to false for JSON output in production / CI.

enable_hft_layer: bool

Whether to enable the HFT file logging layer.

hft_log_dir: PathBuf

Directory for HFT rolling log files. Default: "./logs/hft"

hft_log_prefix: String

Filename prefix for HFT rolling logs. Default: "hft.log"

hft_target: String

The tracing target that the HFT layer listens to. Default: "janus::hft"

Events must be emitted with this target to appear in the HFT log:

tracing::trace!(target: "janus::hft", symbol = "BTCUSD", price = 42000.0);

hft_level: Level

Maximum tracing level recorded by the HFT layer. Default: Level::TRACE (capture everything targeted at janus::hft).

Implementations

impl LoggingConfig

pub fn for_tests() -> Self

Create a minimal config for tests — stdout only, no HFT file layer.

pub fn with_env_filter(self, filter: impl Into<String>) -> Self

Builder: set the default env filter.

pub fn with_hft_dir(self, dir: impl Into<PathBuf>) -> Self

Builder: set the HFT log directory.

pub fn without_hft(self) -> Self

Builder: disable HFT file logging.

pub fn with_json_stdout(self) -> Self

Builder: use JSON output instead of pretty printing.

Trait Implementations

impl Clone for LoggingConfig

fn clone(&self) -> LoggingConfig

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for LoggingConfig

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for LoggingConfig

fn default() -> Self

Returns the “default value” for a type.