processor.java

pastry的java实现的2.0b版

/*************************************************************************

"FreePastry" Peer-to-Peer Application Development Substrate 

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********************************************************************************/
/*
 *  Created on Aug 9, 2005
 */
package rice.environment.processing;

import rice.*;
import rice.environment.logging.LogManager;
import rice.environment.time.TimeSource;
import rice.selector.SelectorManager;

/**
 * @version $Id: pretty.settings 2305 2005-03-11 20:22:33Z jeffh $
 * @author Jeff Hoye
 */
public interface Processor extends Destructable {
  /**
   * Schedules a job for processing on the dedicated processing thread. CPU
   * intensive jobs, such as encryption, erasure encoding, or bloom filter
   * creation should never be done in the context of the underlying node's
   * thread, and should only be done via this method. The continuation will be
   * called on the Selector thread.
   *
   * @param task The task to run on the processing thread
   * @param command The command to return the result to once it's done
   * @param selector DESCRIBE THE PARAMETER
   * @param ts DESCRIBE THE PARAMETER
   * @param log DESCRIBE THE PARAMETER
   */
  public void process(Executable task, Continuation command, SelectorManager selector, TimeSource ts, LogManager log);

  /**
   * Schedules a different type of task. This thread is for doing Disk IO that
   * is required to be blocking.
   *
   * @param request
   */
  public void processBlockingIO(WorkRequest request);

  /**
   * Shuts down the processing thread.
   */
  public void destroy();
}