Struct TraceMeta 

#[non_exhaustive]
pub struct TraceMeta {
    pub root_addr: Option<*const c_void>,
    pub trace_leaf_addr: *const c_void,
}

Available on tokio_unstable and crate feature taskdump and crate feature rt and Linux and (AArch64 or x86 or x86-64) only.

Metadata passed into the trace_leaf callback for trace_with

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

root_addr: Option<*const c_void>

The root boundary address set by Root::poll if any.

When using unwinding the stack, this is the address at which stack walking should stop. It corresponds to the Root::poll function pointer.

trace_leaf_addr: *const c_void

The address of the internal trace_leaf function that triggered this callback.

When capturing a backtrace, use this as the lower bound — frames at or below this address are internal implementation details and should be excluded.

Trait Implementations

impl Debug for TraceMeta

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

Formats the value using the given formatter.