Struct RequestStats

#[repr(C)]
pub struct RequestStats {
    pub minimum_latency: u64,
    pub maximum_latency: u64,
    pub total_time_spent: u64,
    pub total_calls: u64,
    pub bytes_transferred: u64,
}

Stats captured for specific block requests. Unless specified otherwise, time units are in nanoseconds and data transferred is in bytes

Fields

minimum_latency: u64

Minimum time taken by a request to be served.

maximum_latency: u64

Maximum time taken by a request to be served.

total_time_spent: u64

Total time spent to serve requests.

total_calls: u64

Total number of calls.

bytes_transferred: u64

bytes_transferred represents a specific quantity to the operation being measured. It has special meaning for success vs failed calls. On success: Partitally succeeded calls, bytes fetched is less than bytes requested, can be considered as successful. To keep latency and time_spent numbers accurate, on success, bytes transferred is number bytes returned to caller. It is NOT the number of bytes fetched from underlying subsystem and it is NOT number of bytes requested by the caller. On failure: On failure, bytes_transferred is the number of bytes requested by the caller.

Trait Implementations

impl Clone for RequestStats

fn clone(&self) -> RequestStats

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for RequestStats

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

Formats the value using the given formatter.

impl<D: ResourceDialect> Decode<RequestStats, D> for RequestStats

fn new_empty() -> Self

Creates a valid instance of Self. The specific value does not matter, since it will be overwritten by decode.

unsafe fn decode( &mut self, decoder: &mut Decoder<'_, D>, offset: usize, _depth: Depth, ) -> Result<()>

Decodes an object of type T from the decoder’s buffers into self.

impl<D: ResourceDialect> Encode<RequestStats, D> for &RequestStats

unsafe fn encode( self, encoder: &mut Encoder<'_, D>, offset: usize, _depth: Depth, ) -> Result<()>

Encodes the object into the encoder’s buffers. Any handles stored in the object are swapped for Handle::INVALID.

impl<D: ResourceDialect, T0: Encode<u64, D>, T1: Encode<u64, D>, T2: Encode<u64, D>, T3: Encode<u64, D>, T4: Encode<u64, D>> Encode<RequestStats, D> for (T0, T1, T2, T3, T4)

unsafe fn encode( self, encoder: &mut Encoder<'_, D>, offset: usize, depth: Depth, ) -> Result<()>

Encodes the object into the encoder’s buffers. Any handles stored in the object are swapped for Handle::INVALID.

impl Hash for RequestStats

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 Ord for RequestStats

fn cmp(&self, other: &RequestStats) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for RequestStats

fn eq(&self, other: &RequestStats) -> 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 PartialOrd for RequestStats

fn partial_cmp(&self, other: &RequestStats) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl TypeMarker for RequestStats

type Owned = RequestStats

The owned Rust type which this FIDL type decodes into.

fn inline_align(_context: Context) -> usize

Returns the minimum required alignment of the inline portion of the encoded object. It must be a (nonzero) power of two.

fn inline_size(_context: Context) -> usize

Returns the size of the inline portion of the encoded object, including padding for alignment. Must be a multiple of inline_align.

fn encode_is_copy() -> bool

Returns true if the memory layout of Self::Owned matches the FIDL wire format and encoding requires no validation. When true, we can optimize encoding arrays and vectors of Self::Owned to a single memcpy.

fn decode_is_copy() -> bool

Returns true if the memory layout of Self::Owned matches the FIDL wire format and decoding requires no validation. When true, we can optimize decoding arrays and vectors of Self::Owned to a single memcpy.

impl ValueTypeMarker for RequestStats

type Borrowed<'a> = &'a RequestStats

The Rust type to use for encoding. This is a particular Encode<Self> type cheaply obtainable from &Self::Owned. There are three cases:

fn borrow(value: &<Self as TypeMarker>::Owned) -> Self::Borrowed<'_>

Cheaply converts from &Self::Owned to Self::Borrowed.

impl Copy for RequestStats

impl Eq for RequestStats

impl Persistable for RequestStats

impl StructuralPartialEq for RequestStats