PamUtils
Class SystemTiming

java.lang.Object
  PamUtils.SystemTiming

public class SystemTiming
extends java.lang.Object

Class for some system based time functions, primarily to get CPU time for the process and to set the system time. These are bundled together here purely for the convenience of having the native code in a single dll. A windows DLL has been written - we need someone to write DLL's for other OS.

Author:

Doug Gillespie

See Also:

PamProfiler

Field Summary

private static boolean	loadOK
private static boolean	loadTried
private static java.lang.String	SILIB

Constructor Summary

SystemTiming()

Method Summary

static long	getProcessCPUTime()
static void	load()
static boolean	setSystemTime(java.util.Calendar c)
static boolean	setSystemTime(long timeMilliseconds)
private static long	sysGetProcessCPUTime()
private static boolean	sysSetSystemTime(int year, int month, int day, int hour, int minute, int second, int millisecond) Set the computers system time

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

SILIB

private static final java.lang.String SILIB

See Also:

Constant Field Values

loadOK

private static boolean loadOK

loadTried

private static boolean loadTried

Constructor Detail

SystemTiming

public SystemTiming()

Method Detail

sysGetProcessCPUTime

private static long sysGetProcessCPUTime()

Returns:

sysSetSystemTime

private static boolean sysSetSystemTime(int year,
                                        int month,
                                        int day,
                                        int hour,
                                        int minute,
                                        int second,
                                        int millisecond)

Set the computers system time

Parameters:

year - Year

month - Month (1 - 12)

day - Day (1 - 31)

hour - Hour (0 - 23)

minute - Minute (0 - 59)

second - Second (0 - 59)

millisecond - Millisecond (0 - 999)

Returns:

true if successful

load

public static void load()

getProcessCPUTime

public static long getProcessCPUTime()

Returns:

the amount of CPU used by the current process in 100ns intervals

setSystemTime

public static boolean setSystemTime(long timeMilliseconds)

setSystemTime

public static boolean setSystemTime(java.util.Calendar c)