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/*************************************************
*
* = PACKAGE
* tests.Concurrency
*
* = FILENAME
* RWMutexTest.java
*
*@author Ross Dargahi (rossd@krinfo.com)
*
*************************************************/
package tests.Concurrency;
import ACE.OS.*;
import ACE.Concurrency.*;
class TestThread extends Thread
{
TestThread(String name,
boolean writer,
RWMutex lock)
{
super (name);
mWriter = writer;
mLock = lock;
}
public void run()
{
for (int i = 0; i < 10; i++)
{
try
{
if (!mWriter)
{
mLock.acquireRead();
ACE.DEBUG (getName() + ": Acquired Read Lock");
int sleepTime = i * 100;
sleep (sleepTime);
mLock.release ();
ACE.DEBUG (getName () + ": Released Read Lock");
}
else
{
mLock.acquireWrite ();
ACE.DEBUG (getName () + ": Acquired Write Lock");
int sleepTime = i * 100;
sleep (sleepTime);
mLock.release ();
ACE.DEBUG (getName () + ": Released Write Lock");
}
}
catch (InterruptedException ex)
{
ACE.ERROR ("InterruptedException");
}
}
}
RWMutex mLock;
boolean mWriter;
}
public class RWMutexTest
{
public static void main(String [] args)
{
RWMutex lock = new RWMutex();
TestThread t1 = new TestThread ("1", false, lock);
TestThread t2 = new TestThread ("2", false, lock);
TestThread t3 = new TestThread ("3", false, lock);
TestThread t4 = new TestThread ("4", true, lock);
TestThread t5 = new TestThread ("5", false, lock);
TestThread t6 = new TestThread ("6", false, lock);
TestThread t7 = new TestThread ("7", false, lock);
TestThread t8 = new TestThread ("8", true, lock);
t1.start ();
t2.start ();
t3.start ();
t4.start ();
t5.start ();
t6.start ();
t7.start ();
t8.start ();
}
}
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