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/* __ *\
** ________ ___ / / ___ Scala API **
** / __/ __// _ | / / / _ | (c) 2002-2006, LAMP/EPFL **
** __\ \/ /__/ __ |/ /__/ __ | **
** /____/\___/_/ |_/____/_/ | | **
** |/ **
\* */
// $Id$
package scala.tools.util
import compat.Platform.currentTime
import scala.collection.mutable.Stack
/**
* This abstract class implements the collection of timings. How the
* collected timings are issued has to be implemented in subclasses.
*
* @author Philippe Altherr
* @version 1.0
*/
abstract class AbstractTimer {
//########################################################################
// Private Fields
/** A stack for maintaining start times */
private val starts = new Stack[Long]()
//########################################################################
// Public Methods
/** Issues a timing information (duration in milliseconds). */
def issue(message: String, duration: Long): Unit
/** Starts a new timer. */
def start() = {
starts += currentTime
}
/** Ends the current timer. */
def stop(message: String): Unit = {
val stop = currentTime
issue(message, stop - starts.pop)
}
/** Drops the current timer. */
def drop(): Unit =
starts.pop
//########################################################################
}
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