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https://github.com/ocaml-tracing/ocaml-opentelemetry.git
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841d58ab67
follow more closely the official OTEL recommendations, and also try to reduce global state. - use a class type for `Exporter.t` (instead of 1st class module `backend`) - have tracer, logger, metrics_emitter as explicit objects - keep a `Main_exporter` to make migration easier, but discouraged - add stdout_exporter and debug_exporter to opentelemetry.client
42 lines
991 B
OCaml
42 lines
991 B
OCaml
(** Span context. This bundles up a trace ID and parent ID.
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{{:https://opentelemetry.io/docs/specs/otel/trace/api/#spancontext}
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https://opentelemetry.io/docs/specs/otel/trace/api/#spancontext}
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@since 0.7 *)
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type t
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val make :
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?remote:bool ->
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?sampled:bool ->
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trace_id:Trace_id.t ->
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parent_id:Span_id.t ->
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unit ->
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t
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val dummy : t
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(** Invalid span context, to be used as a placeholder *)
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val is_remote : t -> bool
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(** Does this come from a remote parent? *)
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val is_valid : t -> bool
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(** Are the span ID and trace ID valid (ie non-zero)? *)
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val trace_id : t -> Trace_id.t
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val parent_id : t -> Span_id.t
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val sampled : t -> bool
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val to_w3c_trace_context : t -> bytes
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val of_w3c_trace_context : bytes -> (t, string) result
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val of_w3c_trace_context_exn : bytes -> t
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(** @raise Invalid_argument if parsing failed *)
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val k_span_ctx : t Hmap.key
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(** Hmap key to carry around a {!Span_ctx.t}, e.g. to remember what the current
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parent span is.
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@since 0.8 *)
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