Struct TraceWriter 

pub struct TraceWriter { /* private fields */ }

Appends frame and event records to JSONL files.

Implementations

impl TraceWriter

pub fn open( render_path: Option<&Path>, events_path: Option<&Path>, ) -> Result<Self>

Open a trace writer. Pass None for paths you don’t want to record.

pub fn record_frame( &mut self, render_duration: Duration, width: u16, height: u16, trigger: Option<&str>, text_snapshot: Option<String>, ) -> Result<()>

Record a rendered frame.

pub fn record_event( &mut self, msg_tag: &str, detail: Option<&str>, ) -> Result<()>

Record an event (message).

pub fn flush(&mut self) -> Result<()>

Flush both files.

pub fn frame_count(&self) -> u64

Number of frames recorded.

pub fn event_count(&self) -> u64

Number of events recorded.

pub fn is_active(&self) -> bool

Whether any recording is active.

Trait Implementations

impl Drop for TraceWriter

fn drop(&mut self)

Executes the destructor for this type.

fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)

Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned.