Struct perfetto_consumer_proto::perfetto::protos::perf_event_config::CallstackSampling

pub struct CallstackSampling {
    pub scope: Option<Scope>,
    pub kernel_frames: Option<bool>,
    pub user_frames: Option<i32>,
}

Fields

scope: Option<Scope>

Defines a set of processes for which samples are retained/skipped. If unset, all samples are kept, but beware that it will be very heavy on the stack unwinder, which might start dropping samples due to overload.

kernel_frames: Option<bool>

If true, callstacks will include the kernel-space frames. Such frames can be identified by a magical “kernel” string as their mapping name. Requires traced_perf to be running as root, or kptr_restrict to have been manually unrestricted. On Android, the platform should do the right thing on debug builds. This does not disclose KASLR, as only the function names are emitted.

user_frames: Option<i32>

Whether to record and unwind userspace callstacks. If unset, defaults to including userspace (UNWIND_DWARF) both for backwards compatibility and as the most common default (this defaulting is only applicable if the outer CallstackSampling message is explicitly set).

Implementations

impl CallstackSampling

pub fn kernel_frames(&self) -> bool

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

pub fn user_frames(&self) -> UnwindMode

Returns the enum value of user_frames, or the default if the field is unset or set to an invalid enum value.

pub fn set_user_frames(&mut self, value: UnwindMode)

Sets user_frames to the provided enum value.

Trait Implementations

impl Clone for CallstackSampling

fn clone(&self) -> CallstackSampling

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for CallstackSampling

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

Formats the value using the given formatter.

impl Default for CallstackSampling

fn default() -> Self

Returns the “default value” for a type.

impl Message for CallstackSampling

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 CallstackSampling

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

This method tests for self and other values to be equal, and is used by ==.

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

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

impl StructuralPartialEq for CallstackSampling