Struct TracingServiceState

pub struct TracingServiceState {
    pub producers: Vec<Producer>,
    pub data_sources: Vec<DataSource>,
    pub tracing_sessions: Vec<TracingSession>,
    pub supports_tracing_sessions: Option<bool>,
    pub num_sessions: Option<i32>,
    pub num_sessions_started: Option<i32>,
    pub tracing_service_version: Option<String>,
}

Reports the state of the tracing service. Used to gather details about the data sources connected. See ConsumerPort::QueryServiceState().

Fields

producers: Vec<Producer>

Lists all the producers connected.

data_sources: Vec<DataSource>

Lists the data sources available.

tracing_sessions: Vec<TracingSession>

Lists the tracing sessions active AND owned by a consumer that has the same UID of the caller (or all of them if the caller is root). Introduced in v24 / Android T.

supports_tracing_sessions: Option<bool>

This is always set to true from v24 and beyond. This flag is only used to tell the difference between: (1) talking to a recent service which happens to have no tracing session active; (2) talking to an older version of the service which will never report any tracing session.

num_sessions: Option<i32>

Total number of tracing sessions.

num_sessions_started: Option<i32>

Number of tracing sessions in the started state. Always <= num_sessions.

tracing_service_version: Option<String>

The version of traced (the same returned by traced --version). This is a human readable string with and its format varies depending on the build system and the repo (standalone vs AOSP). This is intended for human debugging only.

Implementations

impl TracingServiceState

pub fn num_sessions(&self) -> i32

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

pub fn num_sessions_started(&self) -> i32

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

pub fn tracing_service_version(&self) -> &str

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

pub fn supports_tracing_sessions(&self) -> bool

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

Trait Implementations

impl Clone for TracingServiceState

fn clone(&self) -> TracingServiceState

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for TracingServiceState

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

Formats the value using the given formatter.

impl Default for TracingServiceState

fn default() -> Self

Returns the “default value” for a type.

impl Message for TracingServiceState

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<B>(&self, buf: &mut B) -> Result<(), EncodeError>

where B: BufMut, 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<B>(&self, buf: &mut B) -> Result<(), EncodeError>

where B: BufMut, 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<B>(buf: B) -> Result<Self, DecodeError>

where B: Buf, Self: Default,

Decodes an instance of the message from a buffer.

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

where B: Buf, Self: Default,

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

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

where B: Buf, Self: Sized,

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

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

where B: Buf, Self: Sized,

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

impl PartialEq for TracingServiceState

fn eq(&self, other: &TracingServiceState) -> 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 TracingServiceState