Module header 

Trace file header types.

Re-exports

use std::collections::BTreeMap; 🔒

use ciborium::Value; 🔒

use crate::error::MoqTraceError; 🔒

Structs

SamplingInfo

Sampling and filtering metadata. Present only when events were dropped or filtered at the source.

SegmentInfo

Per-segment metadata.

TraceHeader

Session metadata written at the start of a .moqtrace file, and at the start of every segment in a segmented one.

Enums

DetailLevel

Detail level — declares what was recorded.

DropPolicy

Drop policy applied when a sampled source could not keep up.

Perspective

Recording perspective — who captured the trace.

Functions

as_i64 🔒

Read a signed integer, accepting the float form. See as_u64.

as_u64 🔒

Read an unsigned integer, accepting the float form CBOR also permits.

deduplicated 🔒

The entries of a map to be written, with no key twice: the first entry for a key is kept in its place and the rest are dropped.

find 🔒

find_bool 🔒

find_text 🔒

find_uint 🔒

goes_to_store 🔒

Whether key belongs in a map’s unrecognised-key store rather than in one of the map’s own fields, given that map’s writes_key.

normalised 🔒

Rewrite a value into the encoding this format requires of a writer, leaving what it says alone.

number_value 🔒

Write a number as a CBOR integer when its value is integral, and as a float only when it is not.

required_text 🔒

Read a required text key, distinguishing “absent” from “present and not text”.

required_uint 🔒

Read a required unsigned-integer key. See required_text.

same_key 🔒

Whether two keys about to be written are one key in the file.

store_entries 🔒

The store entries to write after a map’s own keys.

unrecognised 🔒

Every entry of pairs the decoded map does not write back out of a field of its own: a key this crate has never heard of, a key it knows whose value it could not use — and a second entry for a key whose first entry a field did take.

written_entries 🔒

Map entries a writer is about to emit out of pairs that came from a file: normalised into the encoding SPEC.md requires, and with no key written twice (deduplicated).