/// <summary>
/// Initializes the <see cref="StaticRandom" /> class.
/// </summary>
static StaticRandom()
{
int seed = Environment.TickCount;
ThreadLocal = new ThreadLocal<Random>(
() => new Random(Interlocked.Increment(ref seed)));
}
static void Main(string[] args)
{
Func<int> valueFactory = () => 1;
ThreadLocal<int> tl =
new ThreadLocal<int>(valueFactory);
LocalDataStoreSlot localDataStoreSlot =
Thread.GetNamedDataSlot("myThreadLocal");
var value = valueFactory();
Console.WriteLine("thread:{0} value:{1}", Thread.CurrentThread.ManagedThreadId, _value);
_value = 10;
ThreadStart action = () =>
{
_value = Thread.CurrentThread.ManagedThreadId;
Console.WriteLine("thread:{0} value:{1}", Thread.CurrentThread.ManagedThreadId, _value);
};
var t1 = new Thread(action);
var t2= new Thread(action);
t1.Start();
t2.Start();
Console.ReadLine();
var ints = new List<int>() {1, 2, 3, 4};
var readOnlyCollection = ints.AsReadOnly();
var count = readOnlyCollection.Count;
}
public void InitializeThrowingTest ()
{
int callTime = 0;
threadLocal = new ThreadLocal<int> (() => {
Interlocked.Increment (ref callTime);
throw new ApplicationException ("foo");
return 43;
});
Exception exception = null;
try {
var foo = threadLocal.Value;
} catch (Exception e) {
exception = e;
}
Assert.IsNotNull (exception, "#1");
Assert.IsInstanceOfType (typeof (ApplicationException), exception, "#2");
Assert.AreEqual (1, callTime, "#3");
exception = null;
try {
var foo = threadLocal.Value;
} catch (Exception e) {
exception = e;
}
Assert.IsNotNull (exception, "#4");
Assert.IsInstanceOfType (typeof (ApplicationException), exception, "#5");
Assert.AreEqual (1, callTime, "#6");
}
public ChannelFactory(RawRabbitConfiguration config, IConnectionFactory connectionFactory)
{
_connectionFactory = connectionFactory;
_accessDictionary = new ConcurrentDictionary<IModel, DateTime>();
_config = config;
_threadChannels = new ThreadLocal<IModel>(true);
try
{
_logger.LogDebug("Connecting to primary host.");
_connection = _connectionFactory.CreateConnection(_config.Hostnames);
_logger.LogInformation("Successfully established connection.");
}
catch (BrokerUnreachableException e)
{
_logger.LogError("Unable to connect to broker", e);
throw e.InnerException;
}
_closeTimer = new System.Threading.Timer(state =>
{
var enumerator = _accessDictionary.GetEnumerator();
while (enumerator.MoveNext())
{
if (DateTime.Now - enumerator.Current.Value > _config.RequestTimeout)
{
DateTime lastUsed;
if (_accessDictionary.TryRemove(enumerator.Current.Key, out lastUsed))
{
_logger.LogInformation($"Channel {enumerator.Current.Key.ChannelNumber} was last used {lastUsed}. Closing...");
enumerator.Current.Key.Close();
}
}
}
}, null, _config.RequestTimeout, _config.RequestTimeout);
}
public void MultipleReferenceToValueTest()
{
if (Environment.Version.Major >= 4)
{
throw new NotSupportedException("Results in stack overflow - blame Microsoft");
}
Assert.Throws(
typeof(InvalidOperationException),
() =>
{
ThreadLocal<int>[] threadLocal = { null };
using (threadLocal[0] = new ThreadLocal<int>(() => threadLocal[0] != null ? threadLocal[0].Value + 1 : 0, false))
{
GC.KeepAlive(threadLocal[0].Value);
}
}
);
Assert.Throws(
typeof(InvalidOperationException),
() =>
{
ThreadLocal<int>[] threadLocal = { null };
using (threadLocal[0] = new ThreadLocal<int>(() => threadLocal[0] != null ? threadLocal[0].Value + 1 : 0, true))
{
GC.KeepAlive(threadLocal[0].Value);
}
}
);
}
public FairPartitionResolver(IReadOnlyList<string> collectionLinks)
{
Guard.NotNull("collectionLinks", collectionLinks);
this.collectionLinks = collectionLinks;
this.random = new ThreadLocal<Random>(CreateNewRandom);
}
public void TestWithPointers()
{
var path = Path.Combine(new[] { "..", "..", "TestData", "MaxMind-DB", "test-data", "maps-with-pointers.raw" });
var stream = new ThreadLocal<Stream>(() => new MemoryStream(File.ReadAllBytes(path)));
using (stream)
{
var decoder = new Decoder(stream, 0);
var node = decoder.Decode(0).Node;
Assert.That(node.Value<string>("long_key"), Is.EqualTo("long_value1"));
node = decoder.Decode(22).Node;
Assert.That(node.Value<string>("long_key"), Is.EqualTo("long_value2"));
node = decoder.Decode(37).Node;
Assert.That(node.Value<string>("long_key2"), Is.EqualTo("long_value1"));
node = decoder.Decode(50).Node;
Assert.That(node.Value<string>("long_key2"), Is.EqualTo("long_value2"));
node = decoder.Decode(55).Node;
Assert.That(node.Value<string>("long_key"), Is.EqualTo("long_value1"));
node = decoder.Decode(57).Node;
Assert.That(node.Value<string>("long_key2"), Is.EqualTo("long_value2"));
}
}
public void Run()
{
//if (!File.Exists("WordLookup.txt")) // Contains about 150,000 words
// new WebClient().DownloadFile(
// "http://www.albahari.com/ispell/allwords.txt", "WordLookup.txt");
var wordLookup = new HashSet<string>(
File.ReadAllLines("WordLookup.txt"),
StringComparer.InvariantCultureIgnoreCase);
// Random is not thread-safe,所以無法簡單的使用AsParallel，
// 解決方法，使用locks 的方式包住random.Next
// 參考網址:http://csharpindepth.com/Articles/Chapter12/Random.aspx
var random = new Random();
string[] wordList = wordLookup.ToArray();
// Fortunately, the new ThreadLocal<T> class in .NET 4 makes it very easy to write providers which need to have a single instance per thread
// 使用ThreadLocal，建立分開的Random object 給每一個Thread
//new Random(參數)， 是為了確保如果兩個Random objects 被建立在很短的時間，會回傳不同的亂數序列
var allocationRandom = new ThreadLocal<Random>(() => new Random(Guid.NewGuid().GetHashCode()));
// 隨機取100W的值塞給wordsToTest
string[] wordsToTest = Enumerable.Range(0, 1000000)
.AsParallel()
.Select(i => wordList[allocationRandom.Value.Next(0, wordList.Length)])
.ToArray();
var startTime = DateTime.Now.Ticks;
var endTime = DateTime.Now.Ticks;
Console.WriteLine("Time : " + (endTime - startTime).ToString());
}
public void TestBlockingQueueStress()
{
var queue = new BlockingQueue<int>(1);
var rnd = new ThreadLocal<Random>(() => new Random());
var generatedTotal = 0;
var consummedTotal = 0;
var producers = TestMonitorSimple.RunSimultanously(5, () =>
{
for (var i = 0; i < 1e6; i++)
{
var value = rnd.Value.Next(100);
Interlocked.Add(ref generatedTotal, value);
queue.AddIfNotCompleted(value);
}
}, false);
var consumers = TestMonitorSimple.RunSimultanously(5, () =>
{
foreach (var value in queue.GetConsumingEnumerable())
{
Interlocked.Add(ref consummedTotal, value);
}
}, false);
producers.ForEach(t => t.Join());
queue.CompleteAdding();
consumers.ForEach(t => t.Join());
Assert.IsTrue(consummedTotal == generatedTotal);
}
public IModel GetChannel()
{
if (_threadModel == null)
{
_threadModel = new ThreadLocal<IModel>(() => _broker.GetConnection().CreateModel());
_channelTimer = new Timer(state =>
{
_threadModel?.Dispose();
_threadModel = null;
}, null, TimeSpan.FromMilliseconds(200), new TimeSpan(-1));
}
else
{
_channelTimer.Change(TimeSpan.FromMilliseconds(100), new TimeSpan(-1));
}
if (_threadModel.IsValueCreated && _threadModel.Value.IsOpen)
{
return _threadModel.Value;
}
_threadModel?.Value?.Dispose();
try
{
_threadModel.Value = _broker.GetConnection().CreateModel();
}
catch (ObjectDisposedException)
{
return GetChannel();
}
return _threadModel.Value;
}
/// <summary>Initializes the IOCompletionPortTaskScheduler.</summary>
/// <param name="maxConcurrencyLevel">The maximum number of threads in the scheduler to be executing concurrently.</param>
/// <param name="numAvailableThreads">The number of threads to have available in the scheduler for executing tasks.</param>
public IOCompletionPortTaskScheduler(int maxConcurrencyLevel, int numAvailableThreads)
{
// Validate arguments
if (maxConcurrencyLevel < 1) throw new ArgumentNullException("maxConcurrencyLevel");
if (numAvailableThreads < 1) throw new ArgumentNullException("numAvailableThreads");
m_tasks = new ConcurrentQueue<Task>();
m_iocp = new IOCompletionPort(maxConcurrencyLevel);
m_schedulerThread = new ThreadLocal<bool>();
m_remainingThreadsToShutdown = new CountdownEvent(numAvailableThreads);
// Create and start the threads
for (int i = 0; i < numAvailableThreads; i++)
{
new Thread(() =>
{
try
{
// Note that this is a scheduler thread. Used for inlining checks.
m_schedulerThread.Value = true;
// Continually wait on the I/O completion port until
// there's a work item, then process it.
while (m_iocp.WaitOne())
{
Task next;
if (m_tasks.TryDequeue(out next)) TryExecuteTask(next);
}
}
finally { m_remainingThreadsToShutdown.Signal(); }
}) { IsBackground = true }.Start();
}
}
public HttpClient Client()
{
GatewayConfiguration = new HttpGatewayConfiguration();
_timeout = Convert.ToDouble(GatewayConfiguration.OrderServiceConfiguration.Timeout);
_client = new ThreadLocal<HttpClient>(() => CreateClient(_timeout));
return _client.Value;
}
private TracePipeline(DebugContext debugContext)
{
_debugContext = debugContext;
_traceFrame = new ThreadLocal<DebugFrame>();
debugContext.DebugCallback = this;
debugContext.DebugMode = DebugMode.FullyEnabled;
}
private void EnsureInitialized()
{
if (_random == null)
{
_random = new ThreadLocal<System.Random>(() => new System.Random(Seed.Value));
}
}
static ThreadLocalRandom()
{
lock (Seeder)
{
Seed = new ThreadLocal<int>(() => Seeder.Next());
}
}
public static void RunThreadLocalTest3_IsValueCreated()
{
ThreadLocal<string> tlocal = new ThreadLocal<string>(() => "Test");
Assert.False(tlocal.IsValueCreated);
string temp = tlocal.Value;
Assert.True(tlocal.IsValueCreated);
}
public static void RunThreadLocalTest4_Value()
{
ThreadLocal<string> tlocal = null;
// different threads call Value
int numOfThreads = 10;
Task[] threads = new Task[numOfThreads];
object alock = new object();
List<string> seenValuesFromAllThreads = new List<string>();
int counter = 0;
tlocal = new ThreadLocal<string>(() => (++counter).ToString());
//CancellationToken ct = new CancellationToken();
for (int i = 0; i < threads.Length; ++i)
{
// We are creating the task using TaskCreationOptions.LongRunning because...
// there is no guarantee that the Task will be created on another thread.
// There is also no guarantee that using this TaskCreationOption will force
// it to be run on another thread.
threads[i] = new Task(() =>
{
string value = tlocal.Value;
Debug.WriteLine("Val: " + value);
seenValuesFromAllThreads.Add(value);
}, TaskCreationOptions.LongRunning);
threads[i].Start(TaskScheduler.Default);
threads[i].Wait();
}
Assert.Equal(Enumerable.Range(1, threads.Length).Select(x => x.ToString()), seenValuesFromAllThreads);
}
public ReplyAuthenticationSessionAttacher(
AuthenticationSessionCache cache,
AuthenticatedServerRegistry registry)
: base(cache, registry)
{
address = new ThreadLocal<EndpointAddress>();
}
static OAuthServerHelper()
{
RSAParameters privateRsaParameters;
RSAParameters publicRsaParameters;
using (var rsaKeyGen = new RSACryptoServiceProvider(RsaKeySize))
{
privateRsaParameters = rsaKeyGen.ExportParameters(true);
publicRsaParameters = rsaKeyGen.ExportParameters(false);
}
Tuple<byte[], byte[]> aesKeyAndIV;
using (var aesKeyGen = new AesCryptoServiceProvider())
{
aesKeyAndIV = Tuple.Create(aesKeyGen.Key, aesKeyGen.IV);
}
rsa = new ThreadLocal<RSACryptoServiceProvider>(() =>
{
var result = new RSACryptoServiceProvider();
result.ImportParameters(privateRsaParameters);
return result;
});
aes = new ThreadLocal<AesCryptoServiceProvider>(() =>
{
var result = new AesCryptoServiceProvider();
result.Key = aesKeyAndIV.Item1;
result.IV = aesKeyAndIV.Item2;
return result;
});
rsaExponent = OAuthHelper.BytesToString(publicRsaParameters.Exponent);
rsaModulus = OAuthHelper.BytesToString(publicRsaParameters.Modulus);
}
public override void InitializeComponent()
{
base.InitializeComponent();
CurrentFakeHleThreads = new ThreadLocal<HleThread>(() => new HleThread(PspEmulatorContext, new CpuThreadState(CpuProcessor)));
//throw new NotImplementedException();
//CurrentFakeHleThread = ;
}
public SspSyllabifier(bool combineVowels, bool combineConsonants, bool vowelsSameSonorityTautosyllabic, SegmentPool segmentPool, IEnumerable<SonorityClass> sonorityScale)
: base(combineVowels, combineConsonants)
{
_vowelsSameSonorityTautosyllabic = vowelsSameSonorityTautosyllabic;
_segmentPool = segmentPool;
_sonorityScale = sonorityScale.ToList();
_initialOnsets = new ThreadLocal<HashSet<string>>();
}
public void DefaultThreadLocalInitTest()
{
var local = new ThreadLocal<DateTime>();
var local2 = new ThreadLocal<object>();
Assert.AreEqual(default(DateTime), local.Value);
Assert.AreEqual(default(object), local2.Value);
}
public string Crack(List<string> plaintext, string target)
{
var targetBytes = HexHelper.StringToByteArray(target);
ThreadLocal<MD5> md5 = new ThreadLocal<MD5>(() => MD5.Create());
var match = plaintext.AsParallel().Where(p => ByteArrayCompare(targetBytes, md5.Value.ComputeHash(Encoding.Default.GetBytes(p)))).FirstOrDefault();
return match;
}
/// <summary>
/// Constructs a new JsonNetObjectSerializationProvider.
/// </summary>
/// <param name="engine">The engine to de/serialize dependent sub-objects.</param>
public JsonNetObjectSerializationProvider(IStorageEngine engine = null)
{
_guidResolver = new ThreadLocal<SerializedItemsToGuidResolver>(() =>
new SerializedItemsToGuidResolver(engine));
_serializer = new ThreadLocal<JsonSerializer>(() =>
JsonSerializer.Create(new JsonSerializerSettings() {ContractResolver = _guidResolver.Value }));
}
public static void RunThreadLocalTest1_Ctor()
{
ThreadLocal<object> testObject;
testObject = new ThreadLocal<object>();
testObject = new ThreadLocal<object>(true);
testObject = new ThreadLocal<object>(() => new object());
testObject = new ThreadLocal<object>(() => new object(), true);
}
public ThreadLocalByteSegmentLocator(int memoryBlockSize)
{
_memoryBlockSize = memoryBlockSize;
_currentBlock = new ThreadLocal<Tuple<byte[], int>>();
RenewValue();
}
protected override object OnInvoke(params object[] lastMappingValues)
{
if(GA.IsWebRuntime) return Webx.GetTemp(Id, () => this._lazyCallback.Value(lastMappingValues));
if(this._local == null) this._local = new ThreadLocal<object>();
if(!this._local.IsValueCreated) this._local.Value = this._lazyCallback.Value(lastMappingValues);
return this._local.Value;
}
public BaseClockSource()
{
clockEntries = new List<ClockEntry>();
clockEntriesUpdateHandlers = new List<UpdateHandlerDelegate>();
toNotify = new List<Action>();
nearestTickIn = long.MaxValue;
sync = new object();
updateAlreadyInProgress = new ThreadLocal<bool>();
}
public MsmqJobQueue(string pathPattern)
{
if (pathPattern == null) throw new ArgumentNullException("pathPattern");
_pathPattern = pathPattern;
_formatter = new ThreadLocal<IMessageFormatter>(
() => new BinaryMessageFormatter());
}
public InjectionRuntime(IApiBridge bridge, IDebuggerServer debuggerServer, ITimeSource timeSource)
{
interpreter = new ThreadLocal <Interpreter>(() => new Interpreter(Metadata, CurrentFileName, debuggerServer.Create()));
Api = new InjectionApi(bridge, Metadata, Globals, timeSource);
RegisterNatives();
}
public static void TestTryUpdate()
{
var dictionary = new ConcurrentDictionary <string, int>();
Assert.Throws <ArgumentNullException>(
() => dictionary.TryUpdate(null, 0, 0));
// "TestTryUpdate: FAILED. TryUpdate didn't throw ANE when null key is passed");
for (int i = 0; i < 10; i++)
{
dictionary.TryAdd(i.ToString(), i);
}
for (int i = 0; i < 10; i++)
{
Assert.True(dictionary.TryUpdate(i.ToString(), i + 1, i), "TestTryUpdate: FAILED. TryUpdate failed!");
Assert.Equal(i + 1, dictionary[i.ToString()]);
}
//test TryUpdate concurrently
dictionary.Clear();
for (int i = 0; i < 1000; i++)
{
dictionary.TryAdd(i.ToString(), i);
}
var mres = new ManualResetEventSlim();
Task[] tasks = new Task[10];
ThreadLocal <ThreadData> updatedKeys = new ThreadLocal <ThreadData>(true);
for (int i = 0; i < tasks.Length; i++)
{
// We are creating the Task using TaskCreationOptions.LongRunning because...
// there is no guarantee that the Task will be created on another thread.
// There is also no guarantee that using this TaskCreationOption will force
// it to be run on another thread.
tasks[i] = Task.Factory.StartNew((obj) =>
{
mres.Wait();
int index = (((int)obj) + 1) + 1000;
updatedKeys.Value = new ThreadData();
updatedKeys.Value.ThreadIndex = index;
for (int j = 0; j < dictionary.Count; j++)
{
if (dictionary.TryUpdate(j.ToString(), index, j))
{
if (dictionary[j.ToString()] != index)
{
updatedKeys.Value.Succeeded = false;
return;
}
updatedKeys.Value.Keys.Add(j.ToString());
}
}
}, i, CancellationToken.None, TaskCreationOptions.LongRunning, TaskScheduler.Default);
}
mres.Set();
Task.WaitAll(tasks);
int numberSucceeded = 0;
int totalKeysUpdated = 0;
foreach (var threadData in updatedKeys.Values)
{
totalKeysUpdated += threadData.Keys.Count;
if (threadData.Succeeded)
{
numberSucceeded++;
}
}
Assert.True(numberSucceeded == tasks.Length, "One or more threads failed!");
Assert.True(totalKeysUpdated == dictionary.Count,
string.Format("TestTryUpdate: FAILED. The updated keys count doesn't match the dictionary count, expected {0}, actual {1}", dictionary.Count, totalKeysUpdated));
foreach (var value in updatedKeys.Values)
{
for (int i = 0; i < value.Keys.Count; i++)
{
Assert.True(dictionary[value.Keys[i]] == value.ThreadIndex,
string.Format("TestTryUpdate: FAILED. The updated value doesn't match the thread index, expected {0} actual {1}", value.ThreadIndex, dictionary[value.Keys[i]]));
}
}
//test TryUpdate with non atomic values (intPtr > 8)
var dict = new ConcurrentDictionary <int, Struct16>();
dict.TryAdd(1, new Struct16(1, -1));
Assert.True(dict.TryUpdate(1, new Struct16(2, -2), new Struct16(1, -1)), "TestTryUpdate: FAILED. TryUpdate failed for non atomic values ( > 8 bytes)");
}
[Category("NotDotNet")] // nunit results in stack overflow
public void MultipleReferenceToValueTest()
{
threadLocal = new ThreadLocal <int> (() => threadLocal.Value + 1);
var value = threadLocal.Value;
}
public HttpSocketServer(IServiceProvider locator)
{
this.Locator = locator;
var endpoints = new List <IPEndPoint>();
var networkType = AddressFamily.InterNetworkV6;
foreach (string key in ConfigurationManager.AppSettings.Keys)
{
if (key.StartsWith("HttpAddress", StringComparison.InvariantCultureIgnoreCase))
{
var addr = new Uri(ConfigurationManager.AppSettings[key]);
IPAddress ip;
if (!IPAddress.TryParse(addr.Host, out ip))
{
var ips = Dns.GetHostAddresses(addr.Host);
foreach (var i in ips)
{
if (i.AddressFamily == networkType)
{
endpoints.Add(new IPEndPoint(i, addr.Port));
}
}
if (endpoints.Count == 0 && ips.Length > 0)
{
if (ips[0].AddressFamily == AddressFamily.InterNetwork)
{
networkType = AddressFamily.InterNetwork;
foreach (var i in ips)
{
if (i.AddressFamily == networkType)
{
endpoints.Add(new IPEndPoint(i, addr.Port));
}
}
}
}
}
else
{
endpoints.Add(new IPEndPoint(ip, addr.Port));
}
}
}
if (endpoints.Count == 0)
{
Console.WriteLine("Http address not found in config. Starting IPv6 on all interfaces");
endpoints.Add(new IPEndPoint(Socket.OSSupportsIPv6 ? IPAddress.IPv6Any : IPAddress.Any, 8999));
}
else if (endpoints.FindAll(it => it.AddressFamily == AddressFamily.InterNetwork).Count == endpoints.Count)
{
networkType = AddressFamily.InterNetwork;
}
else if (endpoints.FindAll(it => it.AddressFamily == AddressFamily.InterNetworkV6).Count != endpoints.Count)
{
throw new ConfigurationErrorsException(@"Unable to setup configuration for both IPv4 and IPv6. Use either only IPv4 or IPv6.
Please check settings: " + string.Join(", ", endpoints));
}
Socket = new Socket(networkType, SocketType.Stream, ProtocolType.Tcp);
//Socket.SetSocketOption(SocketOptionLevel.IPv6, (SocketOptionName)27, 0);
foreach (var ep in endpoints)
{
Socket.Bind(ep);
Console.WriteLine("Bound to: " + ep);
}
var maxLen = ConfigurationManager.AppSettings["Revenj.ContentLengthLimit"];
if (!string.IsNullOrEmpty(maxLen))
{
MessageSizeLimit = int.Parse(maxLen);
}
var ka = ConfigurationManager.AppSettings["Revenj.KeepAliveLimit"];
if (!string.IsNullOrEmpty(ka))
{
KeepAliveTimeout = int.Parse(ka);
}
Routes = new Routes(locator);
var customAuth = ConfigurationManager.AppSettings["CustomAuth"];
if (!string.IsNullOrEmpty(customAuth))
{
var authType = Type.GetType(customAuth);
if (!typeof(HttpAuth).IsAssignableFrom(authType))
{
throw new ConfigurationErrorsException("Custom auth does not inherit from HttpAuth. Please inherit from " + typeof(HttpAuth).FullName);
}
Authentication = locator.Resolve <HttpAuth>(authType);
}
else
{
Authentication = locator.Resolve <HttpAuth>();
}
Context = new ThreadLocal <HttpSocketContext>(() => new HttpSocketContext("http://127.0.0.1/", MessageSizeLimit));
var ca = ConfigurationManager.AppSettings["Revenj.HttpCapacity"];
if (!string.IsNullOrEmpty(ca))
{
Requests = new BlockingCollection <RequestInfo>(new ConcurrentQueue <RequestInfo>(), int.Parse(ca));
}
else
{
Requests = new BlockingCollection <RequestInfo>(new ConcurrentQueue <RequestInfo>());
}
}
/// <summary>Initializes a new instance of the <see cref="ConcurrentBag{T}"/> class.</summary>
public ConcurrentBag()
{
_locals = new ThreadLocal <WorkStealingQueue>();
}
public RuntimeLocal()
{
this._threadLocal = new ThreadLocal <TValue>();
}
static PerThreadContext()
{
_threadedContext = new ThreadLocal <PerThreadContext>();
}
/// <summary>
/// Sends the batch request to the server and clears the cache and the batchId.
/// </summary>
/// <param name="context">The context that sends the request.</param>
/// <param name="cache">The cache containing the parameters of cached methods.</param>
/// <param name="batchId">The batchId to retrieve the cached parameters.</param>
/// <returns>A Task.</returns>
internal static async Task ExecuteBatch(IContext context, ParametersCache cache, ThreadLocal <Guid> batchId)
{
if (!BatchHelper.IsInBatchMode(batchId))
{
throw new InvalidOperationException("The calling thread was trying to do batch operation but it didn't begin the batch operations before.");
}
Guid localBatchId = batchId.Value;
// Clears the batchId before executing the batch operation since after do "await" the original
// thread will be used to do ExecuteBatchAsync and a new thread will be created to do the rest work.
// So we will not be able to clear the original thread any more.
batchId.Value = Guid.Empty;
List <ParametersGroup> requests = cache.GetParameters(localBatchId);
List <TaskCompletionSource <object> > tasks = cache.GetTasks(localBatchId);
try
{
await context.ExecuteBatchAsync(requests, tasks);
}
catch
{
throw;
}
finally
{
// Clear the cache for this thread.
cache.Clear(localBatchId);
}
}
/// <summary>
/// Checks if the current thread is in batch mode.
/// </summary>
/// <param name="batchId">The batchId of current thread.</param>
/// <returns>True if current thread is in batch mode, otherwise false.</returns>
internal static bool IsInBatchMode(ThreadLocal <Guid> batchId)
{
return(batchId != null && batchId.Value != null && batchId.Value != Guid.Empty);
}
internal SpeechJournalSource(DiagnosticTrace trace = null)
{
lastActionJournalEntryId = new ThreadLocal <long>(false);
this.trace = trace;
}
private static void LazyAndThreadLocal()
{
//<snippet8>
// Initialize the integer to the managed thread id of the
// first thread that accesses the Value property.
Lazy <int> number = new Lazy <int>(() => Thread.CurrentThread.ManagedThreadId);
Thread t1 = new Thread(() => Console.WriteLine("number on t1 = {0} ThreadID = {1}",
number.Value, Thread.CurrentThread.ManagedThreadId));
t1.Start();
Thread t2 = new Thread(() => Console.WriteLine("number on t2 = {0} ThreadID = {1}",
number.Value, Thread.CurrentThread.ManagedThreadId));
t2.Start();
Thread t3 = new Thread(() => Console.WriteLine("number on t3 = {0} ThreadID = {1}", number.Value,
Thread.CurrentThread.ManagedThreadId));
t3.Start();
// Ensure that thread IDs are not recycled if the
// first thread completes before the last one starts.
t1.Join();
t2.Join();
t3.Join();
/* Sample Output:
* number on t1 = 11 ThreadID = 11
* number on t3 = 11 ThreadID = 13
* number on t2 = 11 ThreadID = 12
* Press any key to exit.
*/
//</snippet8>
//<snippet9>
// Initialize the integer to the managed thread id on a per-thread basis.
ThreadLocal <int> threadLocalNumber = new ThreadLocal <int>(() => Thread.CurrentThread.ManagedThreadId);
Thread t4 = new Thread(() => Console.WriteLine("threadLocalNumber on t4 = {0} ThreadID = {1}",
threadLocalNumber.Value, Thread.CurrentThread.ManagedThreadId));
t4.Start();
Thread t5 = new Thread(() => Console.WriteLine("threadLocalNumber on t5 = {0} ThreadID = {1}",
threadLocalNumber.Value, Thread.CurrentThread.ManagedThreadId));
t5.Start();
Thread t6 = new Thread(() => Console.WriteLine("threadLocalNumber on t6 = {0} ThreadID = {1}",
threadLocalNumber.Value, Thread.CurrentThread.ManagedThreadId));
t6.Start();
// Ensure that thread IDs are not recycled if the
// first thread completes before the last one starts.
t4.Join();
t5.Join();
t6.Join();
/* Sample Output:
* threadLocalNumber on t4 = 14 ThreadID = 14
* threadLocalNumber on t5 = 15 ThreadID = 15
* threadLocalNumber on t6 = 16 ThreadID = 16
*/
//</snippet9>
}
public Clock(Int32 maximumIdleTime)
{
m_MaximumIdleTime = TimeSpan.FromSeconds(maximumIdleTime).Ticks;
m_StartTime = new ThreadLocal <DateTime>(() => DateTime.UtcNow, false);
m_StartTimestamp = new ThreadLocal <Double>(() => Stopwatch.GetTimestamp(), false);
}
private void InvalidateLastBlock()
{
lastBlockStorage = new ThreadLocal <Block>();
}
internal LocalDataStoreSlot(ThreadLocal <object?> data)
{
Data = data;
GC.SuppressFinalize(this);
}
[PlatformSpecific(~TestPlatforms.Browser)] // Operation is not supported on this platform.
public static void ValuesGetterDoesNotThrowUnexpectedExceptionWhenDisposed()
{
var startTest = new ManualResetEvent(false);
var gotUnexpectedException = new ManualResetEvent(false);
ThreadLocal <int> threadLocal = null;
bool stop = false;
Action waitForCreatorDisposer;
Thread creatorDisposer = ThreadTestHelpers.CreateGuardedThread(out waitForCreatorDisposer, () =>
{
startTest.CheckedWait();
do
{
var tl = new ThreadLocal <int>(trackAllValues: true);
Volatile.Write(ref threadLocal, tl);
tl.Value = 1;
tl.Dispose();
} while (!Volatile.Read(ref stop));
});
creatorDisposer.IsBackground = true;
creatorDisposer.Start();
int readerCount = Math.Max(1, Environment.ProcessorCount - 1);
var waitsForReader = new Action[readerCount];
for (int i = 0; i < readerCount; ++i)
{
Thread reader = ThreadTestHelpers.CreateGuardedThread(out waitsForReader[i], () =>
{
startTest.CheckedWait();
do
{
var tl = Volatile.Read(ref threadLocal);
if (tl == null)
{
continue;
}
try
{
IList <int> values = tl.Values;
}
catch (ObjectDisposedException)
{
}
catch
{
gotUnexpectedException.Set();
throw;
}
} while (!Volatile.Read(ref stop));
});
reader.IsBackground = true;
reader.Start();
}
startTest.Set();
bool failed = gotUnexpectedException.WaitOne(500);
Volatile.Write(ref stop, true);
foreach (Action waitForReader in waitsForReader)
{
waitForReader();
}
waitForCreatorDisposer();
Assert.False(failed);
}
/// <summary>Visualize the partitioning.</summary>
private void btnVisualize_Click(object sender, EventArgs e)
{
int numProcs = tbCores.Value;
int width = pbPartitionedImage.Width, height = pbPartitionedImage.Height;
bool useParallelFor = rbParallelFor.Checked, useParallelForEach = rbParallelForEach.Checked;
_workFactor = tbWorkFactor.Value;
// If we're using Parallel.ForEach or PLINQ, ensure a partitioning scheme was selected and use it
Tuple <string, Func <int[], Partitioner <int> > > selectedMethod = null;
if (!useParallelFor)
{
if (lvPartitioningMethods.SelectedIndices.Count == 0)
{
return;
}
else
{
selectedMethod = (Tuple <string, Func <int[], Partitioner <int> > >)lvPartitioningMethods.SelectedItems[0].Tag;
}
}
// Make sure a workload was selected and use it
if (lvWorkloads.SelectedItems.Count == 0)
{
return;
}
var selectedWorkload = (Tuple <string, Func <int, int, int> >)lvWorkloads.SelectedItems[0].Tag;
// Create a new Bitmap to store the rendered output
var bmp = new Bitmap(width, height);
// Disable the start button and kick off the background work
btnVisualize.Enabled = false;
Task.Factory.StartNew(() =>
{
int nextId = -1; // assign each thread a unique id
var threadId = new ThreadLocal <int>(() => Interlocked.Increment(ref nextId));
using (FastBitmap fastBmp = new FastBitmap(bmp)) // get faster access to the Bitmap's contents
{
var sw = Stopwatch.StartNew(); // time the operation
if (useParallelFor)
{
Parallel.For(0, height, new ParallelOptions {
MaxDegreeOfParallelism = numProcs
}, i =>
{
int id = threadId.Value;
DoWork(selectedWorkload.Item2(height, i));
for (int j = 0; j < width; j++)
{
fastBmp.SetColor(j, i, _colors[id % _colors.Length]);
}
});
}
else
{
// Create the partitioner to be used
var partitioner = selectedMethod.Item2(Enumerable.Range(0, height).ToArray());
if (useParallelForEach)
{
// Run the work with Parallel.ForEach
Parallel.ForEach(partitioner, new ParallelOptions {
MaxDegreeOfParallelism = numProcs
}, i =>
{
int id = threadId.Value;
DoWork(selectedWorkload.Item2(height, i));
for (int j = 0; j < width; j++)
{
fastBmp.SetColor(j, i, _colors[id % _colors.Length]);
}
});
}
else // PLINQ
{
// Run the work with PLINQ. If a special partitioning method was selected, use relevant query operators
// to get PLINQ to use that partitioning approach.
var source = partitioner.AsParallel().WithDegreeOfParallelism(numProcs);
if (selectedMethod.Item1 == PartitioningStripe)
{
source = source.TakeWhile(elem => true);
}
else if (selectedMethod.Item1 == PartitioningHash)
{
source = source.Join(Enumerable.Range(0, height).AsParallel(), i => i, i => i, (i, ignore) => i);
}
source.ForAll(i =>
{
int id = threadId.Value;
DoWork(selectedWorkload.Item2(height, i));
for (int j = 0; j < width; j++)
{
fastBmp.SetColor(j, i, _colors[id % _colors.Length]);
}
});
}
}
// Return the total time from the task
return(sw.Elapsed);
}
// When the work completes, run the following on the UI thread
}).ContinueWith(t =>
{
// Dispose of the old image (if there was one) and display the new one
var old = pbPartitionedImage.Image;
pbPartitionedImage.Image = bmp;
if (old != null)
{
old.Dispose();
}
// Re-enable controls on the form and display the elapsed time
btnVisualize.Enabled = true;
lblTime.Text = "Time: " + t.Result.ToString();
}, TaskScheduler.FromCurrentSynchronizationContext());
}
internal Entry(ThreadLocal<T> threadLocal, T value)
{
this.weak.SetTarget(threadLocal);
this.Value = value;
}
public static void RunThreadLocalTest2_ToString()
{
ThreadLocal <object> tlocal = new ThreadLocal <object>(() => (object)1);
Assert.Equal(1.ToString(), tlocal.ToString());
}
public IPIReadWriteLockInternal(int numReaders)
{
_readIndicator = new CLRAtomicInt[numReaders + 1];
_thisReaderIndex = new ThreadLocal <int>();
}
public static async Task AsyncMethodNotifications()
{
//
// Define thread-local and async-local values. The async-local value uses its notification
// to keep the thread-local value in sync with the async-local value.
//
ThreadLocal <int> tls = new ThreadLocal <int>();
AsyncLocal <int> als = new AsyncLocal <int>(args =>
{
tls.Value = args.CurrentValue;
});
Assert.Equal(tls.Value, als.Value);
als.Value = 1;
Assert.Equal(tls.Value, als.Value);
als.Value = 2;
Assert.Equal(tls.Value, als.Value);
await Run(async() =>
{
Assert.Equal(tls.Value, als.Value);
Assert.Equal(2, als.Value);
als.Value = 3;
Assert.Equal(tls.Value, als.Value);
Task t = Run(async() =>
{
Assert.Equal(tls.Value, als.Value);
Assert.Equal(3, als.Value);
als.Value = 4;
Assert.Equal(tls.Value, als.Value);
Assert.Equal(4, als.Value);
await Task.Run(() =>
{
Assert.Equal(tls.Value, als.Value);
Assert.Equal(4, als.Value);
als.Value = 5;
Assert.Equal(tls.Value, als.Value);
Assert.Equal(5, als.Value);
});
Assert.Equal(tls.Value, als.Value);
Assert.Equal(4, als.Value);
als.Value = 6;
Assert.Equal(tls.Value, als.Value);
Assert.Equal(6, als.Value);
});
Assert.Equal(tls.Value, als.Value);
Assert.Equal(3, als.Value);
await Task.Yield();
Assert.Equal(tls.Value, als.Value);
Assert.Equal(3, als.Value);
await t;
Assert.Equal(tls.Value, als.Value);
Assert.Equal(3, als.Value);
});
Assert.Equal(tls.Value, als.Value);
Assert.Equal(2, als.Value);
}
public static void TestMaxItemsPerTask(int maxConcurrency, int maxItemsPerTask, bool completeBeforeTaskWait)
{
//Create a custom TaskScheduler with specified max concurrency (TrackingTaskScheduler is defined in Common\tools\CommonUtils\TPLTestSchedulers.cs)
TrackingTaskScheduler scheduler = new TrackingTaskScheduler(maxConcurrency);
//We need to use the custom scheduler to achieve the results. As a by-product, we test to ensure custom schedulers are supported
ConcurrentExclusiveSchedulerPair schedPair = new ConcurrentExclusiveSchedulerPair(scheduler, maxConcurrency, maxItemsPerTask);
TaskFactory readers = new TaskFactory(schedPair.ConcurrentScheduler); //get reader and writer schedulers
TaskFactory writers = new TaskFactory(schedPair.ExclusiveScheduler);
//These are threadlocals to ensure that no concurrency side effects occur
ThreadLocal <int> itemsExecutedCount = new ThreadLocal <int>(); //Track the items executed by CEScheduler Task
ThreadLocal <int> schedulerIDInsideTask = new ThreadLocal <int>(); //Used to store the Scheduler ID observed by a Task Executed by CEScheduler Task
//Work done by both reader and writer tasks
Action work = () =>
{
//Get the id of the parent Task (which is the task created by the scheduler). Each task run by the scheduler task should
//see the same SchedulerID value since they are run on the same thread
int id = ((TrackingTaskScheduler)scheduler).SchedulerID.Value;
if (id == schedulerIDInsideTask.Value)
{ //since ids match, this is one more Task being executed by the CEScheduler Task
itemsExecutedCount.Value = ++itemsExecutedCount.Value;
//This does not need to be thread safe since we are looking to ensure that only n number of tasks were executed and not the order
//in which they were executed. Also asserting inside the thread is fine since we just want the test to be marked as failure
Assert.True(itemsExecutedCount.Value <= maxItemsPerTask, string.Format("itemsExecutedCount={0} cant be greater than maxValue={1}. Parent TaskID={2}",
itemsExecutedCount, maxItemsPerTask, id));
}
else
{ //Since ids don't match, this is the first Task being executed in the CEScheduler Task
schedulerIDInsideTask.Value = id; //cache the scheduler ID seen by the thread, so other tasks running in same thread can see this
itemsExecutedCount.Value = 1;
}
//Give enough time for a Task to stay around, so that other tasks will be executed by the same CEScheduler Task
//or else the CESchedulerTask will die and each Task might get executed by a different CEScheduler Task. This does not affect the
//verifications, but its increases the chance of finding a bug if the maxItemPerTask is not respected
new ManualResetEvent(false).WaitOne(1);
};
List <Task> taskList = new List <Task>();
int maxConcurrentTasks = maxConcurrency * maxItemsPerTask * 5;
int maxExclusiveTasks = maxConcurrency * maxItemsPerTask * 2;
// Schedule Tasks in both concurrent and exclusive mode
for (int i = 0; i < maxConcurrentTasks; i++)
{
taskList.Add(readers.StartNew(work));
}
for (int i = 0; i < maxExclusiveTasks; i++)
{
taskList.Add(writers.StartNew(work));
}
if (completeBeforeTaskWait)
{
schedPair.Complete();
schedPair.Completion.Wait();
Assert.True(taskList.TrueForAll(t => t.IsCompleted), "All tasks should have completed for scheduler to complete");
}
//finally wait for all of the tasks, to ensure they all executed properly
Task.WaitAll(taskList.ToArray());
if (!completeBeforeTaskWait)
{
schedPair.Complete();
schedPair.Completion.Wait();
Assert.True(taskList.TrueForAll(t => t.IsCompleted), "All tasks should have completed for scheduler to complete");
}
}
/// <summary>释放所有会话</summary>
internal void ReleaseSession()
{
//_store.Values.TryDispose();
_store.TryDispose();
_store = new ThreadLocal <IDbSession>();
}
public void Setup()
{
nTimes = 0;
threadLocal = new ThreadLocal <int> (() => { Interlocked.Increment(ref nTimes); return(42); });
}
private void initialize()
{
locals = new ThreadLocal <Locals>(() => new Locals());
}
public static void RunThreadLocalTest8_Values()
{
// Test adding values and updating values
{
var threadLocal = new ThreadLocal <int>(true);
Assert.True(threadLocal.Values.Count == 0, "RunThreadLocalTest8_Values: Expected thread local to initially have 0 values");
Assert.True(threadLocal.Value == 0, "RunThreadLocalTest8_Values: Expected initial value of 0");
Assert.True(threadLocal.Values.Count == 1, "RunThreadLocalTest8_Values: Expected values count to now be 1 from initialized value");
Assert.True(threadLocal.Values[0] == 0, "RunThreadLocalTest8_Values: Expected values to contain initialized value");
threadLocal.Value = 1000;
Assert.True(threadLocal.Values.Count == 1, "RunThreadLocalTest8_Values: Expected values count to still be 1 after updating existing value");
Assert.True(threadLocal.Values[0] == 1000, "RunThreadLocalTest8_Values: Expected values to contain updated value");
((IAsyncResult)Task.Run(() => threadLocal.Value = 1001)).AsyncWaitHandle.WaitOne();
Assert.True(threadLocal.Values.Count == 2, "RunThreadLocalTest8_Values: Expected values count to be 2 now that another thread stored a value");
Assert.True(threadLocal.Values.Contains(1000) && threadLocal.Values.Contains(1001), "RunThreadLocalTest8_Values: Expected values to contain both thread's values");
int numTasks = 1000;
Task[] allTasks = new Task[numTasks];
for (int i = 0; i < numTasks; i++)
{
// We are creating the task using TaskCreationOptions.LongRunning because...
// there is no guarantee that the Task will be created on another thread.
// There is also no guarantee that using this TaskCreationOption will force
// it to be run on another thread.
var task = Task.Factory.StartNew(() => threadLocal.Value = i, CancellationToken.None, TaskCreationOptions.LongRunning, TaskScheduler.Default);
task.Wait();
}
var values = threadLocal.Values;
if (values.Count != 1002)
{
string message =
"RunThreadLocalTest8_Values: Expected values to contain both previous values and 1000 new values. Actual count: " +
values.Count +
'.';
if (values.Count != 0)
{
message += " Missing items:";
for (int i = 0; i < 1002; i++)
{
if (!values.Contains(i))
{
message += " " + i;
}
}
}
Assert.True(false, message);
}
for (int i = 0; i < 1000; i++)
{
Assert.True(values.Contains(i), "RunThreadLocalTest8_Values: Expected values to contain value for thread #: " + i);
}
threadLocal.Dispose();
}
// Test that thread values remain after threads depart
{
var tl = new ThreadLocal <string>(true);
var t = Task.Run(() => tl.Value = "Parallel");
t.Wait();
t = null;
GC.Collect();
GC.WaitForPendingFinalizers();
GC.Collect();
Assert.True(tl.Values.Count == 1, "RunThreadLocalTest8_Values: Expected values count to be 1 from other thread's initialization");
Assert.True(tl.Values.Contains("Parallel"), "RunThreadLocalTest8_Values: Expected values to contain 'Parallel'");
}
}
protected override void InitializeCore()
{
base.InitializeCore();
threadContext = new ThreadLocal <ThreadContext>(() => new ThreadContext(Context.GraphicsDevice), true);
}
private static void InitializeDownloadFileWatcher()
{
_fileSystemWatcher = new ThreadLocal <FileSystemWatcher>(() => new FileSystemWatcher(GetSystemDownloadsPath()));
_fileSystemWatcher.Value.Changed += FilesChanged;
_fileSystemWatcher.Value.EnableRaisingEvents = true;
}
static void Main(string[] args)
{
var builder = new SqlConnectionStringBuilder()
{
DataSource = "test.db",
};
TypeMapper.SetSnakeToCamelCase <Model>();
TypeMapper.SetSnakeToCamelCase <Texture>();
TypeMapper.SetSnakeToCamelCase <ModelTextureId>();
#if false
using (var conn = new SQLiteConnection(builder.ToString()))
{
conn.Open();
conn.Execute("PRAGMA foreign_keys = ON");
QueryBuilder.CreateTable <Model>(conn);
QueryBuilder.CreateTable <Texture>(conn);
conn.Execute("DROP TABLE IF EXISTS `model_texture_ids`");
conn.Execute(string.Format(@"
CREATE TABLE `model_texture_ids` (
`model_id` INTEGER,
`texture_id` INTEGER,
FOREIGN KEY(`model_id`) REFERENCES `models`(`id`) ON DELETE CASCADE ON UPDATE CASCADE,
FOREIGN KEY(`texture_id`) REFERENCES `textures`(`id`) ON DELETE CASCADE ON UPDATE CASCADE,
UNIQUE(`model_id`, `texture_id`)
)
"));
}
#endif
using (var conn = new SQLiteConnection(builder.ToString()))
{
conn.Open();
conn.Execute("PRAGMA foreign_keys = ON");
var iterations = 100000;
var ids = Enumerable.Range(0, iterations).OrderBy(_ => Guid.NewGuid()).ToArray();
var rand = new Random(0x12345678);
#if false
var models = Enumerable.Range(0, iterations).Select(x => new Model()
{
Name = $"model_{x}"
}).ToArray();
var textures = Enumerable.Range(0, iterations).Select(x => new Texture()
{
Name = $"texture_{x}"
}).ToArray();
foreach (var model in models)
{
var textureIds = Enumerable.Range(0, rand.Next(0, 5))
.Select(_ => rand.Next(0, iterations))
.Distinct();
model.Textures = textureIds.Select(x => textures[x]).ToArray();
}
using (new ScopedTimer())
using (var trans = conn.BeginTransaction())
{
foreach (var model in models)
{
conn.Execute("INSERT INTO `models` (`name`) values(@name)", new { name = model.Name });
model.Id = (int)conn.ExecuteScalar <long>("SELECT last_insert_rowid()");
}
foreach (var texture in textures)
{
conn.Execute("INSERT INTO `textures` (`name`) values(@name)", new { name = texture.Name });
texture.Id = (int)conn.ExecuteScalar <long>("SELECT last_insert_rowid()");
}
foreach (var model in models)
{
foreach (var texture in model.Textures)
{
conn.Execute(
"INSERT INTO `model_texture_ids` (`model_id`, `texture_id`) values (@model_id, @texture_id)",
new { model_id = model.Id, texture_id = texture.Id });
}
}
trans.Commit();
}
using (new ScopedTimer())
using (var trans = conn.BeginTransaction())
{
for (var i = 0; i < iterations; ++i)
{
var model = models[ids[i]];
conn.Execute("UPDATE `models` SET `name`=@new_name WHERE `id`=@id", new { id = model.Id, new_name = $"{model.Name}_1" });
}
trans.Commit();
}
#endif
GC.Collect();
Model[] models;
using (new ScopedTimer())
{
var query = @"
SELECT * FROM `models` AS `m`
LEFT JOIN `model_texture_ids` AS `mt` ON `mt`.`model_id` = `m`.`id`
LEFT JOIN `textures` AS `t` ON `t`.`id` = `mt`.`texture_id`
";
var modelCache = new Dictionary <int, Model>();
var textureCache = new Dictionary <int, Texture>();
models = conn.Query <Model, ModelTextureId, Texture, Model>(
query,
(m, _, t) =>
{
var isNew = false;
Model model;
if (!modelCache.TryGetValue(m.Id, out model))
{
model = m;
model.Textures = new List <Texture>();
modelCache[m.Id] = model;
isNew = true;
}
if (t != null)
{
Texture tex;
if (!textureCache.TryGetValue(t.Id, out tex))
{
tex = t;
textureCache[t.Id] = tex;
}
model.Textures.Add(tex);
}
return(isNew ? model : null);
},
splitOn: "id,model_id,id")
.Where(x => x != null)
.ToArray();
}
Console.WriteLine(models.Length);
}
#if false
using (new ScopedTimer())
{
using (var conn = new ThreadLocal <SQLiteConnection>(() => { var item = new SQLiteConnection(builder.ToString()); item.Open(); return(item); }, true))
{
Parallel.For(0, 100, i =>
{
Thread.Sleep(100);
using (var trans = conn.Value.BeginTransaction())
{
conn.Value.Execute("INSERT INTO `test_table` (`name`, `test_name`) values(@name, @test_name)", new { name = Guid.NewGuid().ToString(), test_name = "test_" + Guid.NewGuid().ToString() });
}
});
foreach (var item in conn.Values)
{
item.Dispose();
}
}
}
using (new ScopedTimer())
{
using (var conn = new SQLiteConnection(builder.ToString()))
{
conn.Open();
using (var trans = conn.BeginTransaction())
{
for (var i = 0; i < 100; ++i)
{
Thread.Sleep(100);
conn.Execute("INSERT INTO `test_table` (`name`, `test_name`) values(@name, @test_name)", new { name = Guid.NewGuid().ToString(), test_name = "test_" + Guid.NewGuid().ToString() });
}
}
}
}
using (new ScopedTimer())
{
Parallel.For(0, 100, i => Thread.Sleep(100));
using (var conn = new SQLiteConnection(builder.ToString()))
{
conn.Open();
using (var trans = conn.BeginTransaction())
{
for (var i = 0; i < 100; ++i)
{
conn.Execute("INSERT INTO `test_table` (`name`, `test_name`) values(@name, @test_name)", new { name = Guid.NewGuid().ToString(), test_name = "test_" + Guid.NewGuid().ToString() });
}
trans.Commit();
}
}
}
using (var conn = new SQLiteConnection(builder.ToString()))
{
SqlMapper.SetTypeMap(typeof(TestTable), new CustomPropertyTypeMap(typeof(TestTable), (type, name) =>
{
// snake_case -> CamelCase
var propName = string.Join("", name.Split('_').Select(x => (x.Length > 1) ? x[0].ToString().ToUpper() + x.Substring(1) : x.ToUpper()));
return(type.GetProperty(propName));
}));
IEnumerable <TestTable> data;
using (new ScopedTimer())
{
data = conn.Query <TestTable>("SELECT * from `test_table`");
}
Console.WriteLine(data.Count());
}
#endif
Console.WriteLine("complete!!");
Console.ReadKey();
}
public BufferPoolThreadLocal(ISerializationService serializationService)
{
_threadLocal = new ThreadLocal <BufferPool>(() => new BufferPool(serializationService), false);
}
/// <summary>
/// Cleans up the dispatcher helpers.
/// </summary>
public static void Reset()
{
s_isOnDispatcherThread.Dispose();
s_isOnDispatcherThread = null;
s_mainDispatcher = null;
}
public void Run()
{
var wordLookupFile = Path.Combine(Path.GetTempPath(), "WordLookup.txt");
if (!File.Exists(wordLookupFile))
{
new WebClient().DownloadFile("http://www.albahari.com/ispell/allwords.txt", wordLookupFile);
}
var wordLookup = new HashSet<string>(File.ReadAllLines(wordLookupFile), StringComparer.InvariantCultureIgnoreCase);
var wordList = wordLookup.ToArray();
// Here, we're using ThreadLocal to generate a thread-safe random number generator,
// so we can parallelize the building of the wordsToTest array.
var localRandom = new ThreadLocal<Random>(() => new Random(Guid.NewGuid().GetHashCode()));
var wordsToTest = Enumerable.Range(0, 1000000)
.AsParallel()
.Select(i => wordList[localRandom.Value.Next(0, wordList.Length)])
.ToArray();
wordsToTest[12345] = "woozsh"; // Introduce a couple
wordsToTest[23456] = "wubsie"; // of spelling mistakes.
var query = wordsToTest
.AsParallel()
//.Select((word, index) => new IndexedWord { Word = word, Index = index })
.Select((word, index) => new { Word = word, Index = index })
.Where(iword => !wordLookup.Contains(iword.Word))
.OrderBy(iword => iword.Index);
var result = query.ToList();
}
