X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.db.impl%2Fsrc%2Forg%2Fsimantics%2Fdb%2Fimpl%2Fquery%2FSyncIntProcedure.java;fp=bundles%2Forg.simantics.db.impl%2Fsrc%2Forg%2Fsimantics%2Fdb%2Fimpl%2Fquery%2FSyncIntProcedure.java;h=f26a703dd22bf694e7cc7212f551a99582042adf;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.db.impl/src/org/simantics/db/impl/query/SyncIntProcedure.java b/bundles/org.simantics.db.impl/src/org/simantics/db/impl/query/SyncIntProcedure.java
new file mode 100644
index 000000000..f26a703dd
--- /dev/null
+++ b/bundles/org.simantics.db.impl/src/org/simantics/db/impl/query/SyncIntProcedure.java
@@ -0,0 +1,44 @@
+/*******************************************************************************
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+package org.simantics.db.impl.query;
+
+import org.simantics.db.impl.graph.ReadGraphImpl;
+
+
+abstract public class SyncIntProcedure implements IntProcedure, ThreadRunnable {
+
+	int barrier = 1;
+//	
+//    final private AtomicInteger barrier = new AtomicInteger(1);
+    
+    public SyncIntProcedure() {
+    }
+    
+    final protected void inc() {
+//    	System.err.println("inc " + barrier.get());
+    	++barrier;
+//    	barrier.incrementAndGet();
+    }
+    
+    final protected void dec(ReadGraphImpl graph) {
+//    	System.err.println("dec " + barrier.get());
+    	if((--barrier) == 0) {
+            run(graph);
+    	}
+    }
+    
+    @Override
+    public void exception(ReadGraphImpl graph, Throwable t) {
+    	throw new Error("Errors are not supported,", t);
+    }
+    
+}