Struct DroppedRecordStats 

#[repr(C)]
pub struct DroppedRecordStats {
    pub first_dropped: zx_instant_boot_ticks_t,
    pub last_dropped: zx_instant_boot_ticks_t,
    pub num_dropped: u32,
    pub bytes_dropped: u32,
    pub has_dropped: bool,
    pub __bindgen_padding_0: [u8; 7],
}

This struct keeps track of the duration, number, and size of trace records dropped when the buffer is full. These statistics are emitted to the trace buffer as a duration as soon as space is available to do so, at which point the values are reset to 0, or false in the case of has_dropped.

Fields

first_dropped: zx_instant_boot_ticks_t

last_dropped: zx_instant_boot_ticks_t

num_dropped: u32

By storing num_dropped and bytes_dropped in 32-bit values, we ensure that they can each be stored in a single 64-bit word in the FXT record we emit when space is available.

bytes_dropped: u32

has_dropped: bool

__bindgen_padding_0: [u8; 7]

Implementations

impl DroppedRecordStats

pub const fn new() -> Self

Creates a zero-initialized DroppedRecordStats.

pub fn reset(&mut self)

Resets the dropped record statistics to their initial values.

pub fn track(&mut self, now: zx_instant_boot_ticks_t, size: u32)

Records a dropped trace record of size bytes at timestamp now.

pub const fn has_dropped(&self) -> bool

Returns true if any records have been dropped since the last reset.

Trait Implementations

impl Default for DroppedRecordStats

fn default() -> Self

Returns the “default value” for a type.