Struct TraceFutureArgs

pub struct TraceFutureArgs<'a> {
    pub category: &'static CStr,
    pub name: &'static CStr,
    pub context: Option<TraceCategoryContext>,
    pub args: Vec<Arg<'a>>,
    pub flow_id: Option<Id>,
    pub _use_trace_future_args: (),
}

Arguments for TraceFuture and TraceFutureExt. Use trace_future_args! to construct this object.

Fields

category: &'static CStr

name: &'static CStr

context: Option<TraceCategoryContext>

TraceFuture::new and trace_future_args! both check if the trace category is enabled. The trace context is acquired in trace_future_args! and is passed to TraceFuture::new to avoid acquiring it twice.

args: Vec<Arg<'a>>

The trace arguments to appear in every duration event written by the TraceFuture. args should be empty if context is None.

flow_id: Option<Id>

The flow id to use in the flow events that connect the duration events together. A flow id will be constructed with Id::new() if not provided.

_use_trace_future_args: ()

Use trace_future_args! to construct this object.