How to send signals to test programs?

[Nurdin Premji <npremji at redhat dot com>]

Trying to create a test for stepping over and through signals. I have a 
simple the test program and I'm copying testcases from
frysk-core/frysk/stepping/TestStepping.java

How do I send a signal to my test program from the TestStepping test?

Thank you,
Nurdin

funit-signal.c:

#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include <signal.h>


volatile int j = 0;

void catch_usr (int sig_num)
{
       signal(SIGUSR1, 
catch_usr);                                             // 
_signalSigHandlerEntry_
       --j;
       ++j;
}

int
main ( int argc, char *argv[]) {

       signal(SIGUSR1, catch_usr);

       
--j;                                                                    
// _startTestEntry_
       ++j;
       return 0;
}


TestStepping.java addition:

public void testStepThroughSignal() {
       /** Variable setup */

       String source = Config.getRootSrcDir()
           + "frysk-core/frysk/pkglibdir/funit-signal.c";

       this.scanner = new TestfileTokenScanner(new File(source));

       /* The line number where the test begins */
       int start = this.scanner.findTokenLine("_startTestEntry_");

       /* The line number the test should end up at */
       int end = this.scanner.findTokenLine("_signalSigHandlerEntry_");

       /* The test process */
       SynchronizedOffspring process
           = new SynchronizedOffspring(Signal.USR1,
                                       new String[] {
                                           getExecPath("funit-signal")
                                       });
       this.testStarted = false;

       /** Test initialization */
       Task myTask = initTask(process, source, start, end);

       this.currentTest = new AssertLine(end, myTask);

       DebugInfoFrame frame = DebugInfoStackFactory
           .createDebugInfoStackTrace(myTask);
       assertTrue("Line information present", frame.getLine() != 
SourceLocation.UNKNOWN);

       /** The stepping operation */
       this.se.stepLine(myTask);

       /* TODO: Send Signal to myTask */

       this.testStarted = true;

       /** Run to completion */
       assertRunUntilStop("Running test");
       cleanup();
   }