/*- * See the file LICENSE for redistribution information. * * Copyright (c) 2009, 2011 Oracle and/or its affiliates. All rights reserved. * */ using System; using System.Collections; using System.Collections.Generic; using System.IO; using System.Text; using System.Threading; using System.Xml; using NUnit.Framework; using BerkeleyDB; namespace CsharpAPITest { [TestFixture] public class LockTest : CSharpTestFixture { DatabaseEnvironment testLockStatsEnv; BTreeDatabase testLockStatsDb; [TestFixtureSetUp] public void SetUpTestFixture() { testFixtureName = "LockTest"; base.SetUpTestfixture(); } [Test] public void TestLockStats() { testName = "TestLockStats"; SetUpTest(true); // Configure locking subsystem. LockingConfig lkConfig = new LockingConfig(); lkConfig.MaxLockers = 60; lkConfig.MaxLocks = 50; lkConfig.MaxObjects = 70; lkConfig.Partitions = 20; lkConfig.DeadlockResolution = DeadlockPolicy.DEFAULT; // Configure and open environment. DatabaseEnvironmentConfig envConfig = new DatabaseEnvironmentConfig(); envConfig.Create = true; envConfig.FreeThreaded = true; envConfig.LockSystemCfg = lkConfig; envConfig.LockTimeout = 1000; envConfig.MPoolSystemCfg = new MPoolConfig(); envConfig.MPoolSystemCfg.CacheSize = new CacheInfo(0, 104800, 1); envConfig.NoLocking = false; envConfig.TxnTimeout = 2000; envConfig.UseLocking = true; envConfig.UseMPool = true; envConfig.UseTxns = true; DatabaseEnvironment env = DatabaseEnvironment.Open(testHome, envConfig); // Get and confirm locking subsystem statistics. LockStats stats = env.LockingSystemStats(); env.PrintLockingSystemStats(true, true); Assert.AreEqual(0, stats.AllocatedLockers); Assert.AreNotEqual(0, stats.AllocatedLocks); Assert.AreNotEqual(0, stats.AllocatedObjects); Assert.AreEqual(0, stats.InitLockers); Assert.AreNotEqual(0, stats.InitLocks); Assert.AreNotEqual(0, stats.InitObjects); Assert.AreEqual(0, stats.LastAllocatedLockerID); Assert.AreEqual(0, stats.LockConflictsNoWait); Assert.AreEqual(0, stats.LockConflictsWait); Assert.AreEqual(0, stats.LockDeadlocks); Assert.AreEqual(0, stats.LockDowngrades); Assert.AreEqual(0, stats.LockerNoWait); Assert.AreEqual(0, stats.Lockers); Assert.AreEqual(0, stats.LockerWait); Assert.AreEqual(9, stats.LockModes); Assert.AreEqual(0, stats.LockPuts); Assert.AreEqual(0, stats.LockRequests); Assert.AreEqual(0, stats.Locks); Assert.AreEqual(0, stats.LockSteals); Assert.AreEqual(1000, stats.LockTimeoutLength); Assert.AreEqual(0, stats.LockTimeouts); Assert.AreEqual(0, stats.LockUpgrades); Assert.AreEqual(0, stats.MaxBucketLength); Assert.AreEqual(0, stats.MaxLockers); Assert.AreEqual(60, stats.MaxLockersInTable); Assert.AreEqual(0, stats.MaxLocks); Assert.AreEqual(0, stats.MaxLocksInBucket); Assert.AreEqual(50, stats.MaxLocksInTable); Assert.AreEqual(0, stats.MaxLockSteals); Assert.AreEqual(0, stats.MaxObjects); Assert.AreEqual(0, stats.MaxObjectsInBucket); Assert.AreEqual(70, stats.MaxObjectsInTable); Assert.AreEqual(0, stats.MaxObjectSteals); Assert.AreEqual(0, stats.MaxPartitionLockNoWait); Assert.AreEqual(0, stats.MaxPartitionLockWait); Assert.AreNotEqual(0, stats.MaxUnusedID); Assert.AreEqual(20, stats.nPartitions); Assert.AreEqual(0, stats.ObjectNoWait); Assert.AreEqual(0, stats.Objects); Assert.AreEqual(0, stats.ObjectSteals); Assert.AreEqual(0, stats.ObjectWait); Assert.LessOrEqual(0, stats.PartitionLockNoWait); Assert.AreEqual(0, stats.PartitionLockWait); Assert.Less(0, stats.RegionNoWait); Assert.AreNotEqual(0, stats.RegionSize); Assert.AreEqual(0, stats.RegionWait); Assert.AreNotEqual(0, stats.TableSize); Assert.AreEqual(2000, stats.TxnTimeoutLength); Assert.AreEqual(0, stats.TxnTimeouts); env.PrintLockingSystemStats(); Transaction txn = env.BeginTransaction(); BTreeDatabaseConfig dbConfig = new BTreeDatabaseConfig(); dbConfig.Creation = CreatePolicy.IF_NEEDED; dbConfig.Env = env; dbConfig.FreeThreaded = true; BTreeDatabase db = BTreeDatabase.Open( testName + ".db", dbConfig, txn); txn.Commit(); testLockStatsEnv = env; testLockStatsDb = db; Thread thread1 = new Thread(new ThreadStart(Write)); Thread thread2 = new Thread(new ThreadStart(Read)); thread1.Start(); Thread.Sleep(10); thread2.Start(); thread1.Join(); thread2.Join(); env.PrintLockingSystemStats(); stats = env.LockingSystemStats(); Assert.Less(0, stats.LastAllocatedLockerID); Assert.Less(0, stats.LockConflictsNoWait); Assert.LessOrEqual(0, stats.LockConflictsWait); Assert.LessOrEqual(0, stats.LockDeadlocks); Assert.Less(0, stats.LockDowngrades); Assert.LessOrEqual(0, stats.LockerNoWait); Assert.Less(0, stats.Lockers); Assert.LessOrEqual(0, stats.LockerWait); Assert.Less(0, stats.LockPuts); Assert.Less(0, stats.LockRequests); Assert.Less(0, stats.Locks); Assert.LessOrEqual(0, stats.LockSteals); Assert.LessOrEqual(0, stats.LockTimeouts); Assert.LessOrEqual(0, stats.LockUpgrades); Assert.Less(0, stats.MaxBucketLength); Assert.Less(0, stats.MaxLockers); Assert.Less(0, stats.MaxLocks); Assert.Less(0, stats.MaxLocksInBucket); Assert.LessOrEqual(0, stats.MaxLockSteals); Assert.Less(0, stats.MaxObjects); Assert.Less(0, stats.MaxObjectsInBucket); Assert.LessOrEqual(0, stats.MaxObjectSteals); Assert.LessOrEqual(0, stats.MaxPartitionLockNoWait); Assert.LessOrEqual(0, stats.MaxPartitionLockWait); Assert.Less(0, stats.MaxUnusedID); Assert.Less(0, stats.ObjectNoWait); Assert.Less(0, stats.Objects); Assert.LessOrEqual(0, stats.ObjectSteals); Assert.LessOrEqual(0, stats.ObjectWait); Assert.Less(0, stats.PartitionLockNoWait); Assert.LessOrEqual(0, stats.PartitionLockWait); Assert.Less(0, stats.RegionNoWait); Assert.LessOrEqual(0, stats.RegionWait); Assert.Less(0, stats.TxnTimeouts); db.Close(); env.Close(); } public void Write() { Transaction txn = testLockStatsEnv.BeginTransaction(); for (int i = 0; i < 500; i++) { testLockStatsDb.Put(new DatabaseEntry(BitConverter.GetBytes(i)), new DatabaseEntry(ASCIIEncoding.ASCII.GetBytes( Configuration.RandomString(i))), txn); testLockStatsDb.Sync(); } txn.Commit(); } public void Read() { Transaction txn = testLockStatsEnv.BeginTransaction(); for (int i = 0; i < 500; ) { try { testLockStatsDb.Get(new DatabaseEntry( BitConverter.GetBytes(i)), txn); i++; } catch (DeadlockException) { Thread.Sleep(500); } catch (NotFoundException) { Thread.Sleep(500); } } txn.Commit(); } public static void LockingEnvSetUp(string testHome, string testName, out DatabaseEnvironment env, uint maxLock, uint maxLocker, uint maxObject, uint partition) { // Configure env and locking subsystem. LockingConfig lkConfig = new LockingConfig(); /* * If the maximum number of locks/lockers/objects * is given, then the LockingConfig is set. Unless, * it is not set to any value. */ if (maxLock != 0) lkConfig.MaxLocks = maxLock; if (maxLocker != 0) lkConfig.MaxLockers = maxLocker; if (maxObject != 0) lkConfig.MaxObjects = maxObject; if (partition != 0) lkConfig.Partitions = partition; DatabaseEnvironmentConfig envConfig = new DatabaseEnvironmentConfig(); envConfig.Create = true; envConfig.LockSystemCfg = lkConfig; envConfig.UseLocking = true; envConfig.ErrorPrefix = testName; env = DatabaseEnvironment.Open(testHome, envConfig); } } }