Struct TaskContext 

pub struct TaskContext {
    pub iid: Option<u64>,
    pub pid: Option<u32>,
    pub tid: Option<u32>,
    pub async_id: Option<u64>,
}

The task an observation is attributed to. At least one of pid / tid / async_id should be set. async_id identifies a stackful async context (goroutine, fiber, …) described by an AsyncContextDescriptor whose iid equals the async_id.

Fields

iid: Option<u64>

Interning key, used when this context is emitted via InternedData.stack_sample_task_contexts and referenced by StackSample.task_context_iid. Starts from 1; 0 is the same as “not set”.

pid: Option<u32>

OS process id the sample belongs to.

tid: Option<u32>

OS thread id the sample belongs to. If only tid is set, the process is inferred from thread association elsewhere in the trace.

async_id: Option<u64>

Implementations

impl TaskContext

pub fn iid(&self) -> u64

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

pub fn pid(&self) -> u32

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

pub fn tid(&self) -> u32

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

pub fn async_id(&self) -> u64

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

Trait Implementations

impl Clone for TaskContext

fn clone(&self) -> TaskContext

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for TaskContext

impl Debug for TaskContext

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

Formats the value using the given formatter.

impl Default for TaskContext

fn default() -> Self

Returns the “default value” for a type.

impl Eq for TaskContext

impl Hash for TaskContext

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 TaskContext

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 TaskContext

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for TaskContext