Crate fxt_layout 

Typed bitfields and enums for the Fuchsia Trace Format (FXT).

Defined according to docs/reference/tracing/trace-format.md and matching C++ definitions in <lib/fxt/record_types.h> and <lib/fxt/fields.h>.

Structs

ArgumentHeader

Header word for an FXT Argument.

BlobRecordHeader

Header word for an FXT Blob record (RecordType = 5).

EventRecordHeader

Header word for an FXT Event record (RecordType = 4).

KernelObjectRecordHeader

Header word for an FXT Kernel Object record (RecordType = 7).

LargeRecordHeader

Header word for a large FXT record (RecordType = 15).

LogRecordHeader

Header word for an FXT Log record (RecordType = 9).

RecordHeader

Header word for a standard FXT record.

StringRecordHeader

Header word for an FXT String record (RecordType = 2).

StringRefHeader

16-bit String Reference header entry.

ThreadRecordHeader

Header word for an FXT Thread record (RecordType = 3).

ThreadRefHeader

8-bit Thread Reference header entry.

UserspaceObjectRecordHeader

Header word for an FXT Userspace Object record (RecordType = 6).

Enums

ArgumentType

Enumerates all known argument types.

BlobType

EventScope

Specifies the scope of instant events.

EventType

EventType enumerates all known trace event types.

LargeBlobFormat

LargeRecordType

MetadataType

MetadataType enumerates all known trace metadata types.

ProfilerRecordType

ProfilerRecordType enumerates all known profiler record sub-types.

ProviderEventType

Enumerates all provider events.

RecordType

Enumerates all known record types.

RefType

Whether a String/Thread Ref is inline or referenced as an id.

SchedulerEventType

SchedulerEventType enumerates all known scheduler event types.

TraceInfoType

Enumerates all known trace info types.

Constants

MAGIC_VALUE

The four byte value present in a magic number record.

Type Aliases

ProviderId

Trace provider id in a trace session.