Struct JoinHandle 

pub struct JoinHandle<T> { /* private fields */ }

Implementations

impl<T> JoinHandle<T>

pub fn thread(&self) -> &Thread

Extracts a handle to the underlying thread.

pub fn join(self) -> Result<T>

Waits for the associated thread to finish.

This function will return immediately if the associated thread has already finished.

In terms of atomic memory orderings, the completion of the associated thread synchronizes with this function returning. In other words, all operations performed by that thread happen before all operations that happen after join returns.

If the associated thread panics, Err is returned with the parameter given to panic!.

Panics

This function may panic on some platforms if a thread attempts to join itself or otherwise may create a deadlock with joining threads.

pub fn is_finished(&self) -> bool

Checks if the associated thread has finished running its main function.

is_finished supports implementing a non-blocking join operation, by checking is_finished, and calling join if it returns true. This function does not block. To block while waiting on the thread to finish, use join.

This might return true for a brief moment after the thread’s main function has returned, but before the thread itself has stopped running. However, once this returns true, join can be expected to return quickly, without blocking for any significant amount of time.