logos.std.log

fn debug(msg: &[u8]) -> void

Logs msg at the DEBUG level.

fn DEBUG() -> i32

Returns the DEBUG level code (1).

fn emit(level: i32, msg: &[u8]) -> void

Writes msg to stderr as one line prefixed with the level name. Silently dropped when level is below threshold(). Short writes are retried; write errors are ignored.

fn error(msg: &[u8]) -> void

Logs msg at the ERROR level.

fn ERROR() -> i32

Returns the ERROR level code (4).

fn info(msg: &[u8]) -> void

Logs msg at the INFO level.

fn INFO() -> i32

Returns the INFO level code (2), the default threshold.

fn log_kv_i64(level: i32, msg: &[u8], key: &[u8], value: i64) -> void

Writes msg followed by a key=value pair (integer) to stderr as one line. Silently dropped when level is below threshold().

fn log_kv_str(level: i32, msg: &[u8], key: &[u8], value: &[u8]) -> void

Writes msg followed by a key="value" pair to stderr as one line. Silently dropped when level is below threshold(). value is quoted but NOT escaped — embedded " or newlines pass through verbatim.

fn OFF() -> i32

Returns the OFF level code (100); as a threshold it suppresses all messages.

fn threshold() -> i32

Returns the current minimum log level, read from the LOGOS_LOG env variable. Recognizes TRACE/DEBUG/INFO/WARN/ERROR/OFF (case-insensitive); unset or unrecognized values yield INFO(). Re-reads the environment on every call.

fn trace(msg: &[u8]) -> void

Logs msg at the TRACE level.

fn TRACE() -> i32

Returns the TRACE level code (0), the most verbose level.

fn warn(msg: &[u8]) -> void

Logs msg at the WARN level.

fn WARN() -> i32

Returns the WARN level code (3).