Struct WriterStats 

pub struct WriterStats {
    pub sequence_id: Option<u64>,
    pub buffer: Option<u32>,
    pub protocol_abi_versions: Option<u32>,
    pub chunk_payload_histogram_counts: Vec<u64>,
    pub chunk_payload_histogram_sum: Vec<i64>,
}

Per TraceWriter stat. Each {producer, trace writer} tuple is publicly visible as a unique sequence ID in the trace.

Fields

sequence_id: Option<u64>

This matches the TracePacket.trusted_packet_sequence_id and is used to correlate the stats with the actual packet types.

buffer: Option<u32>

The buffer index (0..N, as defined in the TraceConfig).

protocol_abi_versions: Option<u32>

Which protocol carried this writer’s chunks to the buffer. This is a bitmask of ProtocolAbiVersion (see producer_port.proto). The value is 1 for the SMB (v1) and 2 for the tracing v2 ring buffer. Both bits are set only if a v1 and a v2 writer of the same producer used the same writer ID which should NOT be happening.

chunk_payload_histogram_counts: Vec<u64>

These two arrays have the same cardinality and match the cardinality of chunk_payload_histogram_def + 1 (for the overflow bucket, see below). sum contains the SUM(entries) and counts contains the COUNT(entries) for each bucket.

chunk_payload_histogram_sum: Vec<i64>

Implementations

impl WriterStats

pub fn sequence_id(&self) -> u64

Returns the value of sequence_id, or the default value if sequence_id is unset.

pub fn buffer(&self) -> u32

Returns the value of buffer, or the default value if buffer is unset.

pub fn protocol_abi_versions(&self) -> u32

Returns the value of protocol_abi_versions, or the default value if protocol_abi_versions is unset.

Trait Implementations

impl Clone for WriterStats

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for WriterStats

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for WriterStats

fn default() -> Self

Returns the “default value” for a type.

impl Eq for WriterStats

impl Hash for WriterStats

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Message for WriterStats

fn encoded_len(&self) -> usize

Returns the encoded length of the message without a length delimiter.

fn clear(&mut self)

Clears the message, resetting all fields to their default.

fn encode(&self, buf: &mut impl BufMut) -> Result<(), EncodeError>

where Self: Sized,

Encodes the message to a buffer.

fn encode_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message to a newly allocated buffer.

fn encode_length_delimited( &self, buf: &mut impl BufMut, ) -> Result<(), EncodeError>

where Self: Sized,

Encodes the message with a length-delimiter to a buffer.

fn encode_length_delimited_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message with a length-delimiter to a newly allocated buffer.

fn decode(buf: impl Buf) -> Result<Self, DecodeError>

where Self: Default,

Decodes an instance of the message from a buffer.

fn decode_length_delimited(buf: impl Buf) -> Result<Self, DecodeError>

where Self: Default,

Decodes a length-delimited instance of the message from the buffer.

fn merge(&mut self, buf: impl Buf) -> Result<(), DecodeError>

where Self: Sized,

Decodes an instance of the message from a buffer, and merges it into self.

fn merge_length_delimited(&mut self, buf: impl Buf) -> Result<(), DecodeError>

where Self: Sized,

Decodes a length-delimited instance of the message from buffer, and merges it into self.

impl PartialEq for WriterStats

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for WriterStats