/*
This file is part of JOP, the Java Optimized Processor
see <http://www.jopdesign.com/>
Copyright (C) 2006, Rasmus Ulslev Pedersen
This program 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.
This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
package gctest;
import joprt.RtThread;
import util.Dbg;
import com.jopdesign.sys.*;
// A test of the GCStackWalker
// It looks for 3 references in the main method. It is done both from main
// and from another thread. It is a kind of regression test.
public class GCTest3 {
public static void main(String s[]) {
System.out.println("Starting GCTest3");
SomeClass1 sc1 = new SomeClass1();
SomeClass2 sc2 = new SomeClass2(sc1);
new RtThread(20,1000000){
public void run(){
for(int i=0;i<3;i++){
System.out.println("T1");
// Call from other thread
int roots[] = GCStkWalk.swk(0,false,true);
// using javap -c -verbose GCTest3 reveals that the refs are in slot 0,1,2
// the offset is 8 from looking at the output
if(roots[8+0]!=1 ||roots[8+1]!=1 ||roots[8+2]!=1){
System.out.println("Root refs not found correctly");
System.exit(-1);
}
waitForNextPeriod();
}
System.out.println("Test OK from thread");
}
};
RtThread.startMission();
for(int i=0;i<3;i++){
System.out.println("M");
// Call from active thread
int roots[] = GCStkWalk.swk(0,true,true);
// using javap -c -verbose GCTest3 reveals that the refs are in slot 0,1,2
// the offset is 8 from looking at the output
if(roots[8+0]!=1 ||roots[8+1]!=1 ||roots[8+2]!=1){
System.out.println("Root refs not found correctly");
System.exit(-1);
}
RtThread.sleepMs(1000);
}
System.out.println("Test OK from main");
}
}
class SomeClass1 {
int i,j;
SomeClass1 sc1inst;
void someMethod(){
sc1inst = this;
int ii = i+j;
SomeClass1 sc1instlocal = this;
System.out.println("someMethod");
}
}
class SomeClass2 {
public SomeClass2(SomeClass1 sc1){
sc1.someMethod();
}
}