Class ThreadDeathWatcher

java.lang.Object
io.netty.util.ThreadDeathWatcher
@Deprecated public final class ThreadDeathWatcher extends Object
Deprecated.
will be removed in the next major release
Checks if a thread is alive periodically and runs a task when a thread dies.

This thread starts a daemon thread to check the state of the threads being watched and to invoke their associated Runnables. When there is no thread to watch (i.e. all threads are dead), the daemon thread will terminate itself, and a new daemon thread will be started again when a new watch is added.

  • Method Details

    • watch

      public static void watch(Thread thread, Runnable task)
      Deprecated.
      Schedules the specified task to run when the specified thread dies.
      Parameters:
      thread - the Thread to watch
      task - the Runnable to run when the thread dies
      Throws:
      IllegalArgumentException - if the specified thread is not alive

    • unwatch

      public static void unwatch(Thread thread, Runnable task)
      Deprecated.
      Cancels the task scheduled via watch(Thread, Runnable).

    • awaitInactivity

      public static boolean awaitInactivity(long timeout, TimeUnit unit) throws InterruptedException
      Deprecated.
      Waits until the thread of this watcher has no threads to watch and terminates itself. Because a new watcher thread will be started again on watch(Thread, Runnable), this operation is only useful when you want to ensure that the watcher thread is terminated after your application is shut down and there's no chance of calling watch(Thread, Runnable) afterwards.
      Returns:
      true if and only if the watcher thread has been terminated
      Throws:
      InterruptedException