Method populate

src/thread_pool.rs:268–274

Ensures that there is at least one worker thread attached to the thread pool. This is mostly used to avoid deadlocks. This should be called before blocking on a thread pool to ensure the block will eventually be released. Returns the new size of the pool, which will be either the old size or one. See [`ThreadPool::resize_to`] for more information about resizing.

(&'static self)

    ///
    /// Note: Workers only take work from this queue as a last resort, after all
    /// their other work has been exhausted.
    #[inline(always)]
    pub fn push_shared_job(&'static self, job_ref: JobRef) {
        self.shared_queue.push(job_ref);
        // Try to wake up a worker to execute this job. This is relatively cheap
        // if no workers are waiting.
        let waiting_bitmask = self.waiting_bitmask.load(Ordering::Relaxed);
        if waiting_bitmask != 0 {
            let i = waiting_bitmask.trailing_zeros() as usize;
            self.get_member_data().semaphores[i].signal();