Struct MemoryNode 

pub struct MemoryNode {
    pub id: Option<u64>,
    pub absolute_name: Option<String>,
    pub weak: Option<bool>,
    pub size_bytes: Option<u64>,
    pub entries: Vec<MemoryNodeEntry>,
}

Memory dumps are represented as a graph of memory nodes which contain statistics. To avoid double counting the same memory across different nodes, edges are used to mark nodes that account for the same memory. See this doc for examples of the usage: https://docs.google.com/document/d/1WGQRJ1sjJrfVkNcgPVY6frm64UqPc94tsxUOXImZUZI

A single node in the memory graph.

Fields

id: Option<u64>

Unique ID of the node across all processes involved in the global memory dump. The ID is only unique within this particular global dump identified by GlobalMemoryDumpPacket.global_dump_id.

absolute_name: Option<String>

Absolute name is a unique name for the memory node within the process with ProcessMemoryDump.pid. The name can contain multiple parts separated by ‘/’, which traces the edges of the node from the root node. Eg: “partition_allocator/array_buffers/buffer1” refers to the child node “buffer1” in a graph structure of: root -> partition_allocator -> array_buffers -> buffer1.

weak: Option<bool>

A weak node means that the instrumentation that added the current node is unsure about the existence of the actual memory. Unless a “strong” (non-weak is default) node that has an edge to the current node exists in the current global dump, the current node will be discarded.

size_bytes: Option<u64>

Size of the node in bytes, used to compute the effective size of the nodes without double counting.

entries: Vec<MemoryNodeEntry>

Implementations

impl MemoryNode

pub fn id(&self) -> u64

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

pub fn absolute_name(&self) -> &str

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

pub fn weak(&self) -> bool

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

pub fn size_bytes(&self) -> u64

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

Trait Implementations

impl Clone for MemoryNode

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 MemoryNode

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

Formats the value using the given formatter.

impl Default for MemoryNode

fn default() -> Self

Returns the “default value” for a type.

impl Message for MemoryNode

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 MemoryNode

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for MemoryNode