Enum UninitializedLogPolicy 

pub enum UninitializedLogPolicy {
    Stdout,
    Stderr,
    Buffer {
        max_bytes: usize,
    },
    Discard,
}

Policy controlling what happens to log messages emitted before a collector has been initialized via one of the init_*_logger functions.

The default is UninitializedLogPolicy::Stdout, which preserves the historical behaviour of pretty-printing pre-initialization logs to stdout (useful for tests run with cargo test -- --nocapture).

Use set_uninitialized_log_policy to change the active policy. Once a collector is initialized, this policy no longer applies as logs flow to the collector instead.

Variants

Stdout

Pretty-print pending logs to stdout, then drop them. Default.

Stderr

Pretty-print pending logs to stderr, then drop them.

Buffer

Retain logs in the in-memory buffer. Once the buffer grows beyond max_bytes, it is cleared (oldest logs are dropped).

If a collector is later initialized while logs are still buffered, those buffered logs will be picked up by the new collector.

Fields

max_bytes: usize

Discard

Drop logs immediately without producing any output.

Trait Implementations

impl Clone for UninitializedLogPolicy

fn clone(&self) -> UninitializedLogPolicy

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for UninitializedLogPolicy

impl Debug for UninitializedLogPolicy

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

Formats the value using the given formatter.

impl Eq for UninitializedLogPolicy

impl PartialEq for UninitializedLogPolicy

fn eq(&self, other: &UninitializedLogPolicy) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for UninitializedLogPolicy