Adding JMCR-Stable version

[Benchmarks_CSolver.git] / JMCR-Stable / mcr-test / src / edu / tamu / aser / rvtest / tso / spinlock.java

diff --git a/JMCR-Stable/mcr-test/src/edu/tamu/aser/rvtest/tso/spinlock.java b/JMCR-Stable/mcr-test/src/edu/tamu/aser/rvtest/tso/spinlock.java
new file mode 100644 (file)
index 0000000..7069945
--- /dev/null
+++ b/JMCR-Stable/mcr-test/src/edu/tamu/aser/rvtest/tso/spinlock.java
@@ -0,0 +1,100 @@
+package edu.tamu.aser.rvtest.tso;
+
+import static org.junit.Assert.*;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import edu.tamu.aser.reexecution.JUnit4MCRRunner;
+
+@RunWith(JUnit4MCRRunner.class)
+public class spinlock {
+       
+       static int lock = 0;
+       static int x;
+       
+       public synchronized static int CAS(int lock, int old, int _new){
+               int temp = lock;
+               if(temp==old){
+                       lock = _new;
+                       return 1;
+               }
+               else{
+                       return 0;
+               }
+       }
+       
+       static int lock(int lock){
+               while(CAS(lock, 0, 1)==0){
+                       
+               }
+               return 1;
+       }
+       
+       static void unlock(int lock){
+               lock = 0;
+       }
+       
+       public static void foo1(){
+               if(lock(lock)==1){
+                       x = 1;
+                       //assert x==1;
+                       
+                       unlock(lock);
+               }
+       }
+       
+       public static void foo2(){
+               if(lock(lock)==1){
+                       x = 2;
+                       //assert x==2;
+                       
+                       unlock(lock);
+               }
+       }
+       
+       public static void main(String[] args) {
+               
+               x = 0;
+               
+               Thread t1 = new Thread(new Runnable() {
+                       
+                       @Override
+                       public void run() {
+                               // TODO Auto-generated method stub
+                               foo1();
+                       }
+               });
+               
+               Thread t2 = new Thread(new Runnable() {
+                       
+                       @Override
+                       public void run() {
+                               // TODO Auto-generated method stub
+                               foo2();
+                       }
+               });
+               
+               t1.start();
+               t2.start();
+               
+               try {
+                       t1.join();
+                       t2.join();
+               } catch (Exception e) {
+                       // TODO: handle exception
+                       e.printStackTrace();
+               }
+       }
+       
+       @Test
+       public void test() throws InterruptedException {
+               try {
+               
+               spinlock.main(null);
+               } catch (Exception e) {
+                       System.out.println("here");
+                       fail();
+               }
+       }
+}