1 files changed, 34 insertions, 0 deletions
diff --git a/gcc-4.4.0/libjava/testsuite/libjava.lang/SyncTest.java b/gcc-4.4.0/libjava/testsuite/libjava.lang/SyncTest.java
new file mode 100644
index 000000000..85573f8a4
--- /dev/null
+++ b/gcc-4.4.0/libjava/testsuite/libjava.lang/SyncTest.java
@@ -0,0 +1,34 @@
+// Test atomic increment via synchronized blocks.
+public class SyncTest implements Runnable {
+  static int counter;
+
+  public void run() {
+    // We cache the .class value; otherwise this code is
+    // slow enough that it will time out in some situations.
+    Object lock = SyncTest.class;
+    for (int n = 0; n < 1000000; n++)
+      synchronized (lock) {
+        counter++;
+      }
+  }
+
+  public static void main(String[] args) {
+    SyncTest test = new SyncTest();
+    Thread[] thr = new Thread[4];
+
+    for (int n = 0; n < thr.length; n++) {
+      thr[n] = new Thread(test);
+      thr[n].start();
+    }
+
+    for (int n = 0; n < thr.length; n++) {
+      try {
+        thr[n].join();
+      } catch (InterruptedException ex) {
+      }
+    }
+
+    System.out.println(counter == 1000000 * thr.length ?
+      "ok" : "fail: " + counter);
+  }
+}