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