End of Life Ruby 3.0 has reached end of life and gets no more fixes. Switch to Ruby 4.0 →

instance method

Queue#pop

pop(non_block=false)

static VALUE
rb_queue_pop(int argc, VALUE *argv, VALUE self)
{
    int should_block = queue_pop_should_block(argc, argv);
    return queue_do_pop(self, queue_ptr(self), should_block);
}

Retrieves data from the queue.

If the queue is empty, the calling thread is suspended until data is pushed onto the queue. If non_block is true, the thread isn’t suspended, and ThreadError is raised.

Ruby version changes

3.0
- Queue#pop, SizedQueue#push and related methods may now invoke the block/unblock scheduler hooks in a non-blocking context. [Feature #16786]

See also #num_waiting #push #length #shift

‹ prev#num_waiting next ›#push