A transaction names one or more accounts: the sender in Account, and by
type a Destination, Owner, Issuer, Holder and so on. tx.process now
carries each top-level account-typed field as its own attribute, keyed
tx_<field> in lower snake case (tx_account, tx_destination, ...), so an
account can be searched for in traces whatever role it played.
Addresses are public ledger identifiers and are emitted raw.
The keys live in TxAccountSpanNames.h in libxrpl, with a field-to-key
table in TxAccountSpanNames.cpp. A library test walks TxFormats and the
SField registry: every account field a transaction can carry has a key,
and no field that only ledger entries carry has one. An empty account
field is skipped rather than rendered as the zero address.
An XRP account address is a public ledger identifier drawn from an
enumerable set. An unsalted hash of it is reversible by lookup, so it
protected nothing and only broke the join against explorers, RPC
responses and logs that show the same address.
- pathfind_source_account and pathfind_dest_account carry the request's
r-address. A value that does not parse as an r-address is not emitted,
so a malformed or mistaken request value never reaches a span. Both
handlers share setAccountAttribute() in PathFindSpanAttributes.h.
- pathfind_dest_currency is to_string(Asset): "XRP", "<issuer>/<CUR>",
or the MPT issuance id.
- The collector's attributes/hash processor is removed. No layer hashes.
- redactAccount() stays available; its header no longer claims to sit in
the emit path.
MonitoredMode::set calls onModeChange on every round start, so the span was
created whether or not the mode moved. A node with a steady mode therefore
emitted one mode_change per round carrying mode_old == mode_new, which a live
sweep confirmed on every round of both instrumented builds. The round span's
own consensus_mode attribute is still written on every call, since that is
where the round learns the mode it is running in.
accept.apply was a plain SpanGuard, so it never became the ambient span of
doAccept. The spans the function goes on to create inherited the activated
accept span instead and came out as accept.apply's siblings, while running
inside its own time window. Every guard was scoped before the SpanGuard split,
so this restores the hierarchy that design had.
Scoped now, so the hierarchy follows the call flow. Drops the parent-context
fallback arm with it: the accept context is captured only while the accept span
is live, and that span is a child of the round context, so an invalid accept
context implies an invalid round context and both arms returned an empty guard.
Only SpanGuard carried addEvent(name, attrs), so a call site holding a scoped
guard could not record an event attribute. Forwarding overload, with the no-op
twin in the telemetry-disabled stub, so a span can be converted between scoped
and unscoped without dropping the attributes on its events.
The C-string overload of setAttribute handed its pointer straight to
std::string_view, whose pointer constructor reads the pointer to find the
length. A null one is undefined behaviour.
A null pointer carries no text, and an empty value already means something on
this class, so nothing is recorded rather than an empty string.
The overload itself has to stay. Without it a string literal would bind to the
bool overload, because pointer-to-bool is a standard conversion and beats the
string_view one, so every string attribute would silently record true. The
header now records that.
Resolved src/libxrpl/tx/applySteps.cpp. calculateBaseFee now returns
std::expected<XRPAmount, TER>, so invokePreclaim rejects the transaction when
the fee cannot be computed. Kept that inside this branch's preclaimTer wrapper,
so the returned error also reaches the span's ter_result attribute.
