Crate holochain_tracing

Source

Modules§

Macros§

Structs§

  • AllSampler
    This samples all traces.
  • AndSampler
    and combinator.
  • EncodedSpanContext
    Binary representation is exactly 37 bytes, so ideally we would use a [u8; 37], but this is easier…
  • EncodedSpanWrap
  • NullSampler
    This samples no traces.
  • OrSampler
    or combinator.
  • PassiveSampler
    This samples traces which have one or more references.
  • ProbabilisticSampler
    This samples a certain percentage of traces.
  • Span
    A wrapper around a simple rustracing_jaeger::RjSpan, providing some convenience functions. It overshadows the lower-level child and follower methods with simpler versions. To access the lower-level methods, use .0.
  • SpanContext
    An OpenTracing SpanContext is used to send span info across a process boundary. This is a simple wrapper around that, again with some helper functions.
  • SpanWrap
    SpanWrap is a simple way to couple some data along with a struct. It is common to send some data on a channel which will be used as arguments to a function on the receiving side, where we also want to continue the trace on the receiving side. This struct helps keep that data together with minimal boilerplate.
  • Tag
    Span tag.
  • Tracer
    Tracer.

Traits§

  • Sampler
    Sampler decides whether a new trace should be sampled or not.

Functions§

  • debug_tag
  • follow
    Add a span to the stack that follows from a SpanWrap
  • follow_encoded
  • follow_encoded_tag
  • is_empty
  • noop
    TODO: use lazy_static / thread_local singleton Tracer
  • null_tracer
    Tracer placeholder (use only as last resort)
  • push_span
    Push a span onto the stack. The value will automatically be popped when the returned guard is dropped, as well as the guards of any subsequently pushed spans
  • push_span_with
    Applies a function to the top of the span stack and pushes the value onto the stack. If the stack is empty, the function will not be executed and None will be returned.
  • test_span
    Dummy span, useful for tests that don’t test tracing
  • test_wrap
  • test_wrap_enc
  • top_follower
    If the stack is not empty, return the top item, else return None
  • with_top
    If the stack is not empty, return the top item, else return None
  • with_top_or_null
    If the stack is not empty, return the top item, else return None
  • wrap
  • wrap_with_tag

Type Aliases§