path: root/src/library/scala/concurrent/ManagedBlocker.scala

package scala.concurrent

/** The <code>ManagedBlocker</code> trait...
 *
 *  @author Philipp Haller
 */
trait ManagedBlocker {

  /**
   * Possibly blocks the current thread, for example waiting for
   * a lock or condition.
   * @return true if no additional blocking is necessary (i.e.,
   * if isReleasable would return true).
   * @throws InterruptedException if interrupted while waiting
   * (the method is not required to do so, but is allowed to).
   */
  def block(): Boolean

  /**
   * Returns true if blocking is unnecessary.
   */
  def isReleasable: Boolean

}