Bug 503036 - "Binary not found" every other launch (via Run As)

- Add a family object for identifying the binary runner job
- Use the join mechanism of the job manager to ensure all binary runner
jobs are finished

Change-Id: I8b82bb0c663e5d2a618e3222e4bd5ba7b48b46c4
Signed-off-by: Thomas Corbat <tcorbat@hsr.ch>

core/org.eclipse.cdt.core/model/org/eclipse/cdt/internal/core/model/BinaryRunner.java

@@ -86,6 +86,7 @@ public class BinaryRunner {
 	private final Job runnerJob;		// final fields don't need synchronization
 	private IOutputEntry[] entries = new IOutputEntry[0];
 	private boolean isStopped= false;   // access to isStopped must be synchronized.
+	private final static Object BINARY_RUNNER_FAMILY = new Object();
 
 	public BinaryRunner(IProject prj) {
 		cproject = CModelManager.getDefault().create(prj);
@@ -135,6 +136,11 @@ public class BinaryRunner {
 				}
 				return status;
 			}
+			
+			@Override
+			public boolean belongsTo(Object family) {
+				return family == BINARY_RUNNER_FAMILY;
+			}
 		};
 		job.setPriority(Job.LONG);
 		return job;
@@ -153,10 +159,7 @@ public class BinaryRunner {
 	 */
 	public void waitIfRunning() {
 		try {
-			Job currentJob = Job.getJobManager().currentJob();
-			if (currentJob != null && !currentJob.equals(runnerJob)) {
-				runnerJob.join();
-			}
+			Job.getJobManager().join(BINARY_RUNNER_FAMILY, null);
 		} catch (InterruptedException e) {
 		}
 	}