Class: ThreadsWait

This class watches for termination of multiple threads. Basic functionality (wait until specified threads have terminated) can be accessed through the class method ThreadsWait::all_waits. Finer control can be gained using instance methods.

Example:

  ThreadsWait.all_wait(thr1, thr2, ...) do |t|
    STDERR.puts "Thread #{t} has terminated."
  end

Methods

all_waits all_waits empty? finished? join join_nowait new next_wait

Constants

RCS_ID = '-$Id: thwait.rb,v 1.3 1998/06/26 03:19:34 keiju Exp keiju $-'

Attributes

threads [R] Returns the array of threads in the wait queue.

Public Class methods

all_waits(*threads) {|thread| ...}

Waits until all specified threads have terminated. If a block is provided, it is executed for each thread termination.

new(*threads)

Creates a ThreadsWait object, specifying the threads to wait on. Non-blocking.

Public Instance methods

all_waits() {|th if block_given?| ...}

Waits until all of the specified threads are terminated. If a block is supplied for the method, it is executed for each thread termination.

Raises exceptions in the same manner as next_wait.

empty?()

Returns true if there are no threads to be synchronized.

finished?()

Returns true if any thread has terminated.

join(*threads)

Waits for specified threads to terminate.

join_nowait(*threads)

Specifies the threads that this object will wait for, but does not actually wait.

next_wait(nonblock = nil)

Waits until any of the specified threads has terminated, and returns the one that does.

If there is no thread to wait, raises ErrNoWaitingThread. If nonblock is true, and there is no terminated thread, raises ErrNoFinishedThread.