Enum GuestLogFilter 

pub enum GuestLogFilter {
    Off,
    Error,
    Warn,
    Info,
    Debug,
    Trace,
}

This type is a unified definition of log level filters between the guest and host.

This is needed because currently the guest uses both the log and tracing crates, and needs each type of LevelFilter from both crates.

To avoid as much as possible the amount of conversions between the two types, we define a single type that can be converted to both log::LevelFilter and tracing_core::LevelFilter. NOTE: This also takes care of the fact that the tracing and log enum types for the log levels are not guaranteed to have the same discriminants, so we can’t just cast between them.

Variants

Off

Error

Warn

Info

Debug

Trace

Trait Implementations

impl Clone for GuestLogFilter

fn clone(&self) -> GuestLogFilter

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for GuestLogFilter

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

Formats the value using the given formatter.

impl From<GuestLogFilter> for LevelFilter

fn from(filter: GuestLogFilter) -> Self

Converts to this type from the input type.

impl From<GuestLogFilter> for LevelFilter

fn from(filter: GuestLogFilter) -> Self

Converts to this type from the input type.

impl From<GuestLogFilter> for u64

Used by the host to convert the GuestLogFilter to a u64 that is passed to the guest via the C API.

fn from(value: GuestLogFilter) -> Self

Converts to this type from the input type.

impl From<LevelFilter> for GuestLogFilter

Used by the host to convert a [tracing_core::LevelFilter] to the intermediary GuestLogFilter filter that is later converted to u64 and passed to the guest via the C API.

fn from(value: LevelFilter) -> Self

Converts to this type from the input type.

impl PartialEq for GuestLogFilter

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl TryFrom<u64> for GuestLogFilter

Used by the guest to convert a u64 value passed from the host via the C API to the intermediary GuestLogFilter filter that is later converted to both tracing_core::LevelFilter and log::LevelFilter.

type Error = ()

The type returned in the event of a conversion error.

fn try_from(value: u64) -> Result<Self, <GuestLogFilter as TryFrom<u64>>::Error>

Performs the conversion.

impl Copy for GuestLogFilter

impl Eq for GuestLogFilter

impl StructuralPartialEq for GuestLogFilter