Struct TraceFlags

pub struct TraceFlags(/* private fields */);
Expand description

Flags that can be set on a SpanContext.

The current version of the specification only supports a single flag TraceFlags::SAMPLED.

See the W3C TraceContext specification’s trace-flags section for more details.

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impl TraceFlags

pub const NOT_SAMPLED: TraceFlags

Trace flags with the sampled flag set to 0.

Spans that are not sampled will be ignored by most tracing tools. See the sampled section of the W3C TraceContext specification for details.

pub const SAMPLED: TraceFlags

Trace flags with the sampled flag set to 1.

Spans that are not sampled will be ignored by most tracing tools. See the sampled section of the W3C TraceContext specification for details.

pub const fn new(flags: u8) -> TraceFlags

Construct new trace flags

pub fn is_sampled(&self) -> bool

Returns true if the sampled flag is set

pub fn with_sampled(&self, sampled: bool) -> TraceFlags

Returns copy of the current flags with the sampled flag set.

pub fn to_u8(self) -> u8

Returns the flags as a u8

Trait Implementations§

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impl BitAnd for TraceFlags

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type Output = TraceFlags

The resulting type after applying the & operator.
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fn bitand(self, rhs: TraceFlags) -> <TraceFlags as BitAnd>::Output

Performs the & operation. Read more
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impl BitOr for TraceFlags

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type Output = TraceFlags

The resulting type after applying the | operator.
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fn bitor(self, rhs: TraceFlags) -> <TraceFlags as BitOr>::Output

Performs the | operation. Read more
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impl Clone for TraceFlags

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fn clone(&self) -> TraceFlags

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for TraceFlags

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

Formats the value using the given formatter. Read more
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impl Default for TraceFlags

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fn default() -> TraceFlags

Returns the “default value” for a type. Read more
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impl Hash for TraceFlags

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fn hash<__H>(&self, state: &mut __H)
where __H: Hasher,

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl LowerHex for TraceFlags

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

Formats the value using the given formatter. Read more
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impl Not for TraceFlags

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type Output = TraceFlags

The resulting type after applying the ! operator.
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fn not(self) -> <TraceFlags as Not>::Output

Performs the unary ! operation. Read more
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impl PartialEq for TraceFlags

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

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

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impl Eq for TraceFlags

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impl StructuralPartialEq for TraceFlags

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