Coverage Report

Coverage Report - sk.baka.webvm.analyzer.ICpuUsageMeasure

Classes in this File

 /**
  * Copyright 2009 Martin Vysny.
  *
  * This file is part of WebVM.
  *
  * WebVM is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation, either version 3 of the License, or
  * (at your option) any later version.
  *
  * WebVM is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with WebVM.  If not, see <http://www.gnu.org/licenses/>.
  */
 package sk.baka.webvm.analyzer;
 
 /**
  * Interface for measuring CPU usage.
  * @author mvy
  */
 public interface ICpuUsageMeasure {
 
     /**
      * Checks if this particular implementation is supported on given host OS.
      * @return true if it is supported, false otherwise.
      */
     boolean supported();
 
     /**
      * Measures an implementation-dependent CPU usage statistics. Used in {@link #getAvgCpuUsage(java.lang.Object, java.lang.Object)} to compute the real CPU usage.
      * @return the measurement object
      * @throws Exception if something happens.
      */
     Object measure() throws Exception;
 
     /**
      * Computes an average CPU usage between two measurements. The first measurement was taken before the second one was taken.<p/>
      * The method must not fail if m1 is same as m2 - in such case return 0.
      * @param m1 first measurement.
      * @param m2 second measurement
      * @return CPU usage in percent, must be a value between 0 and 100.
      */
     int getAvgCpuUsage(final Object m1, final Object m2);
 }

1		/**
2		* Copyright 2009 Martin Vysny.
3		*
4		* This file is part of WebVM.
5		*
6		* WebVM is free software: you can redistribute it and/or modify
7		* it under the terms of the GNU General Public License as published by
8		* the Free Software Foundation, either version 3 of the License, or
9		* (at your option) any later version.
10		*
11		* WebVM is distributed in the hope that it will be useful,
12		* but WITHOUT ANY WARRANTY; without even the implied warranty of
13		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14		* GNU General Public License for more details.
15		*
16		* You should have received a copy of the GNU General Public License
17		* along with WebVM. If not, see <http://www.gnu.org/licenses/>.
18		*/
19		package sk.baka.webvm.analyzer;
20
21		/**
22		* Interface for measuring CPU usage.
23		* @author mvy
24		*/
25		public interface ICpuUsageMeasure {
26
27		/**
28		* Checks if this particular implementation is supported on given host OS.
29		* @return true if it is supported, false otherwise.
30		*/
31		boolean supported();
32
33		/**
34		* Measures an implementation-dependent CPU usage statistics. Used in {@link #getAvgCpuUsage(java.lang.Object, java.lang.Object)} to compute the real CPU usage.
35		* @return the measurement object
36		* @throws Exception if something happens.
37		*/
38		Object measure() throws Exception;
39
40		/**
41		* Computes an average CPU usage between two measurements. The first measurement was taken before the second one was taken.<p/>
42		* The method must not fail if m1 is same as m2 - in such case return 0.
43		* @param m1 first measurement.
44		* @param m2 second measurement
45		* @return CPU usage in percent, must be a value between 0 and 100.
46		*/
47		int getAvgCpuUsage(final Object m1, final Object m2);
48		}