Examples of org.apache.derbyTesting.functionTests.util.Barrier.await()

Package org.apache.derbyTesting.functionTests.util

Class org.apache.derbyTesting.functionTests.util.Barrier

Examples of org.apache.derbyTesting.functionTests.util.Barrier.await()

org.apache.derbyTesting.functionTests.util.Barrier.await()
Wait until {@code numThreads} have called {@code await()} on thisbarrier, then proceed. @throws InterruptedException if the thread is interrupted whilewaiting for the other threads to reach the barrier.

                s.close();


                // Tell the main thread that we've locked the row and that
                // it can go ahead with the index scan. Wait here until the
                // main thread has started the scan.
                barrier.await();


                // The main thread has started the index scan. Give it a
                // second to get to the row we have locked.
                Thread.sleep(1000L);

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            // Once we have fetched the first row, tell the helper thread we
            // have started the index scan, and wait until it has locked the
            // row that should block the scan (x=40).
            if (i == 0) {
                barrier.await();
            }
        }
        assertFalse(rs.next());
        rs.close();
    }

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                Statement s = conn.createStatement();
                s.executeUpdate("update t set x = x where x = 40");


                // Tell the main thread we have locked the row, and wait for
                // it to start the index scan.
                barrier.await();


                // Give the index scan time to get to the row we have locked.
                Thread.sleep(1000);


                // The index scan should be blocked now. Split the first leaf

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            // Once we have fetched the first row, tell the helper thread we
            // have started the index scan, and wait until it has locked the
            // row that should block the scan (x=40).
            if (i == 0) {
                barrier.await();
            }
        }
        assertFalse(rs.next());
        rs.close();
    }

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                // so, just executing it here
                s.executeUpdate("update account set b = b + 11");
                s.close();
                
                // Tell the main thread that we've locked the row
                barrier.await();
                
                // The main thread now can continue - give it a
                // second to do its stuff
                //Thread.sleep(1000L);
                // we check that the 'wait' state is gone at the main thread,

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                "('derby.locks.waitTimeout','5')");
        commit();
        
        // Now that we've found the wait state, tell the helper thread we
        // are done
        barrier.await();
        
        // now that we've released the helper thread, we can safely let
        // the test fail if the results of the earlier check were bad
        assertTrue("expected to find a 'WAIT' state, but did not", found);

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                s.close();


                // Tell the main thread that we've locked the row and that
                // it can go ahead with the index scan. Wait here until the
                // main thread has started the scan.
                barrier.await();


                // The main thread has started the index scan. Give it a
                // second to get to the row we have locked.
                Thread.sleep(1000L);

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            // Once we have fetched the first row, tell the helper thread we
            // have started the index scan, and wait until it has locked the
            // row that should block the scan (x=40).
            if (i == 0) {
                barrier.await();
            }
        }
        assertFalse(rs.next());
        rs.close();
    }

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                Statement s = conn.createStatement();
                s.executeUpdate("update t set x = x where x = 40");


                // Tell the main thread we have locked the row, and wait for
                // it to start the index scan.
                barrier.await();


                // Give the index scan time to get to the row we have locked.
                Thread.sleep(1000);


                // The index scan should be blocked now. Split the first leaf

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            // Once we have fetched the first row, tell the helper thread we
            // have started the index scan, and wait until it has locked the
            // row that should block the scan (x=40).
            if (i == 0) {
                barrier.await();
            }
        }
        assertFalse(rs.next());
        rs.close();
    }

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