instance method `poll`

Ruby on Rails 6.0.6

Since v4.0.13

Available in: v4.0.13 v4.1.16 v4.2.9 v5.2.8.1 v6.0.6 v6.1.7.10 v7.0.10 v7.1.6 v7.2.3 v8.0.4 v8.1.2

Compare with:

poll(timeout = nil)

Remove the head of the queue.

If timeout is not given, remove and return the head the queue if the number of available elements is strictly greater than the number of threads currently waiting (that is, don’t jump ahead in line). Otherwise, return nil.

If timeout is given, block if there is no element available, waiting up to timeout seconds for an element to become available.

Raises:

ActiveRecord::ConnectionTimeoutError if timeout is given and no element

becomes available within timeout seconds,

Parameters

timeout opt = nil

Source

# File activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb, line 165
        def poll(timeout = nil)
          synchronize { internal_poll(timeout) }
        end

Defined in activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb line 165 · View on GitHub · Improve this page · Find usages on GitHub

Defined in ActiveRecord::ConnectionAdapters::ConnectionPool::Queue

Signature

Parameters