W3cubDocs

/Ruby 2.4

class MonitorMixin::ConditionVariable

Parent:
Object

FIXME: This isn't documented in Nutshell.

Since MonitorMixin#new_cond returns a ConditionVariable, and the example above calls while_wait and signal, this class should be documented.

Public Class Methods

new(monitor) Show source
# File lib/monitor.rb, line 153
def initialize(monitor)
  @monitor = monitor
  @cond = Thread::ConditionVariable.new
end

Public Instance Methods

broadcast() Show source

Wakes up all threads waiting for this lock.

# File lib/monitor.rb, line 146
def broadcast
  @monitor.__send__(:mon_check_owner)
  @cond.broadcast
end
signal() Show source

Wakes up the first thread in line waiting for this lock.

# File lib/monitor.rb, line 138
def signal
  @monitor.__send__(:mon_check_owner)
  @cond.signal
end
wait(timeout = nil) Show source

Releases the lock held in the associated monitor and waits; reacquires the lock on wakeup.

If timeout is given, this method returns after timeout seconds passed, even if no other thread doesn't signal.

# File lib/monitor.rb, line 106
def wait(timeout = nil)
  @monitor.__send__(:mon_check_owner)
  count = @monitor.__send__(:mon_exit_for_cond)
  begin
    @cond.wait(@monitor.instance_variable_get(:@mon_mutex), timeout)
    return true
  ensure
    @monitor.__send__(:mon_enter_for_cond, count)
  end
end
wait_until() Show source

Calls wait repeatedly until the given block yields a truthy value.

# File lib/monitor.rb, line 129
def wait_until
  until yield
    wait
  end
end
wait_while() Show source

Calls wait repeatedly while the given block yields a truthy value.

# File lib/monitor.rb, line 120
def wait_while
  while yield
    wait
  end
end

Ruby Core © 1993–2017 Yukihiro Matsumoto
Licensed under the Ruby License.
Ruby Standard Library © contributors
Licensed under their own licenses.