Class: MonitorMixin::ConditionVariable

Inherits:
Object
  • Object
show all
Defined in:
lib/monitor.rb

Overview

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.

Defined Under Namespace

Classes: Timeout

Instance Method Summary collapse

Instance Method Details

#broadcastObject

Wakes up all threads waiting for this lock.


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# File 'lib/monitor.rb', line 147

def broadcast
  @monitor.__send__(:mon_check_owner)
  @cond.broadcast
end

#signalObject

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


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# File 'lib/monitor.rb', line 139

def signal
  @monitor.__send__(:mon_check_owner)
  @cond.signal
end

#wait(timeout = nil) ⇒ Object

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.


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# File 'lib/monitor.rb', line 107

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_untilObject

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


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# File 'lib/monitor.rb', line 130

def wait_until
  until yield
    wait
  end
end

#wait_whileObject

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


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# File 'lib/monitor.rb', line 121

def wait_while
  while yield
    wait
  end
end