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| 1 | +using System; |
| 2 | +using System.Collections.Generic; |
| 3 | +using System.Data; |
| 4 | +using System.Threading; |
| 5 | +using System.Threading.Tasks; |
| 6 | +using NUnit.Framework; |
| 7 | +using ServiceStack.DataAnnotations; |
| 8 | + |
| 9 | +namespace ServiceStack.OrmLite.Tests |
| 10 | +{ |
| 11 | + [TestFixture] |
| 12 | + public class MultipleConnectionIdTests : OrmLiteTestBase |
| 13 | + { |
| 14 | + private int _waitingThreadCount; |
| 15 | + private int _waitingThreadsReleasedCounter; |
| 16 | + |
| 17 | + [SetUp] |
| 18 | + public void SetUp() |
| 19 | + { |
| 20 | + using (var db = OpenDbConnection()) |
| 21 | + { |
| 22 | + db.DropAndCreateTable<MultipleConnection>(); |
| 23 | + } |
| 24 | + } |
| 25 | + |
| 26 | + [Test] |
| 27 | + public void TwoSimultaneousInsertsGetDifferentIds() |
| 28 | + { |
| 29 | + var dataArray = new[] |
| 30 | + { |
| 31 | + new MultipleConnection {Data = "one"}, |
| 32 | + new MultipleConnection {Data = "two"} |
| 33 | + }; |
| 34 | + |
| 35 | + var originalExecFilter = OrmLiteConfig.ExecFilter; |
| 36 | + try |
| 37 | + { |
| 38 | + OrmLiteConfig.ExecFilter = new PostExecuteActionExecFilter(originalExecFilter, cmd => PauseForOtherThreadsAfterInserts(cmd, 2)); |
| 39 | + |
| 40 | + Parallel.ForEach(dataArray, data => |
| 41 | + { |
| 42 | + using (var db = OpenDbConnection()) |
| 43 | + { |
| 44 | + data.Id = db.Insert(new MultipleConnection {Data = data.Data}, selectIdentity: true); |
| 45 | + |
| 46 | + Assert.That(data.Id, Is.Not.EqualTo(0)); |
| 47 | + } |
| 48 | + }); |
| 49 | + } |
| 50 | + finally |
| 51 | + { |
| 52 | + OrmLiteConfig.ExecFilter = originalExecFilter; |
| 53 | + } |
| 54 | + |
| 55 | + Assert.That(dataArray[1].Id, Is.Not.EqualTo(dataArray[0].Id)); |
| 56 | + } |
| 57 | + |
| 58 | + private void PauseForOtherThreadsAfterInserts(IDbCommand cmd, int numberOfThreads) |
| 59 | + { |
| 60 | + if (!cmd.CommandText.StartsWith("INSERT ", StringComparison.InvariantCultureIgnoreCase)) |
| 61 | + return; |
| 62 | + |
| 63 | + var initialReleasedCounter = _waitingThreadsReleasedCounter; |
| 64 | + Interlocked.Increment(ref _waitingThreadCount); |
| 65 | + try |
| 66 | + { |
| 67 | + var waitUntil = DateTime.UtcNow.AddSeconds(2); |
| 68 | + while ((_waitingThreadCount < numberOfThreads) && (initialReleasedCounter == _waitingThreadsReleasedCounter)) |
| 69 | + { |
| 70 | + if (DateTime.UtcNow >= waitUntil) |
| 71 | + throw new Exception("There were not enough waiting threads after timeout"); |
| 72 | + Thread.Sleep(1); |
| 73 | + } |
| 74 | + |
| 75 | + Interlocked.Increment(ref _waitingThreadsReleasedCounter); |
| 76 | + } |
| 77 | + finally |
| 78 | + { |
| 79 | + Interlocked.Decrement(ref _waitingThreadCount); |
| 80 | + } |
| 81 | + } |
| 82 | + |
| 83 | + [Test] |
| 84 | + public void TwoSimultaneousSavesGetDifferentIds() |
| 85 | + { |
| 86 | + var dataArray = new[] |
| 87 | + { |
| 88 | + new MultipleConnection {Data = "one"}, |
| 89 | + new MultipleConnection {Data = "two"} |
| 90 | + }; |
| 91 | + |
| 92 | + var originalExecFilter = OrmLiteConfig.ExecFilter; |
| 93 | + try |
| 94 | + { |
| 95 | + OrmLiteConfig.ExecFilter = new PostExecuteActionExecFilter(originalExecFilter, cmd => PauseForOtherThreadsAfterInserts(cmd, 2)); |
| 96 | + |
| 97 | + Parallel.ForEach(dataArray, data => |
| 98 | + { |
| 99 | + using (var db = OpenDbConnection()) |
| 100 | + { |
| 101 | + db.Save(data); |
| 102 | + |
| 103 | + Assert.That(data.Id, Is.Not.EqualTo(0)); |
| 104 | + } |
| 105 | + }); |
| 106 | + } |
| 107 | + finally |
| 108 | + { |
| 109 | + OrmLiteConfig.ExecFilter = originalExecFilter; |
| 110 | + } |
| 111 | + |
| 112 | + Assert.That(dataArray[1].Id, Is.Not.EqualTo(dataArray[0].Id)); |
| 113 | + } |
| 114 | + |
| 115 | + private class PostExecuteActionExecFilter : IOrmLiteExecFilter |
| 116 | + { |
| 117 | + private readonly IOrmLiteExecFilter _inner; |
| 118 | + private readonly Action<IDbCommand> _postExecuteAction; |
| 119 | + |
| 120 | + public PostExecuteActionExecFilter(IOrmLiteExecFilter inner, Action<IDbCommand> postExecuteAction) |
| 121 | + { |
| 122 | + _inner = inner; |
| 123 | + _postExecuteAction = postExecuteAction; |
| 124 | + } |
| 125 | + |
| 126 | + public SqlExpression<T> SqlExpression<T>(IDbConnection dbConn) |
| 127 | + { |
| 128 | + return _inner.SqlExpression<T>(dbConn); |
| 129 | + } |
| 130 | + |
| 131 | + public IDbCommand CreateCommand(IDbConnection dbConn) |
| 132 | + { |
| 133 | + var innerCommand = _inner.CreateCommand(dbConn); |
| 134 | + return new PostExcuteActionCommand(innerCommand, _postExecuteAction); |
| 135 | + } |
| 136 | + |
| 137 | + public void DisposeCommand(IDbCommand dbCmd) |
| 138 | + { |
| 139 | + _inner.DisposeCommand(dbCmd); |
| 140 | + } |
| 141 | + |
| 142 | + public T Exec<T>(IDbConnection dbConn, Func<IDbCommand, T> filter) |
| 143 | + { |
| 144 | + var cmd = CreateCommand(dbConn); |
| 145 | + try |
| 146 | + { |
| 147 | + return filter(cmd); |
| 148 | + } |
| 149 | + finally |
| 150 | + { |
| 151 | + DisposeCommand(cmd); |
| 152 | + } |
| 153 | + } |
| 154 | + |
| 155 | + public void Exec(IDbConnection dbConn, Action<IDbCommand> filter) |
| 156 | + { |
| 157 | + var cmd = CreateCommand(dbConn); |
| 158 | + try |
| 159 | + { |
| 160 | + filter(cmd); |
| 161 | + } |
| 162 | + finally |
| 163 | + { |
| 164 | + DisposeCommand(cmd); |
| 165 | + } |
| 166 | + } |
| 167 | + |
| 168 | + public IEnumerable<T> ExecLazy<T>(IDbConnection dbConn, Func<IDbCommand, IEnumerable<T>> filter) |
| 169 | + { |
| 170 | + var cmd = CreateCommand(dbConn); |
| 171 | + try |
| 172 | + { |
| 173 | + var results = filter(cmd); |
| 174 | + |
| 175 | + foreach (var item in results) |
| 176 | + { |
| 177 | + yield return item; |
| 178 | + } |
| 179 | + } |
| 180 | + finally |
| 181 | + { |
| 182 | + DisposeCommand(cmd); |
| 183 | + } |
| 184 | + } |
| 185 | + } |
| 186 | + |
| 187 | + private class PostExcuteActionCommand : IDbCommand |
| 188 | + { |
| 189 | + private readonly IDbCommand _inner; |
| 190 | + private readonly Action<IDbCommand> _postExecuteAction; |
| 191 | + |
| 192 | + public PostExcuteActionCommand(IDbCommand inner, Action<IDbCommand> postExecuteAction) |
| 193 | + { |
| 194 | + _inner = inner; |
| 195 | + _postExecuteAction = postExecuteAction; |
| 196 | + } |
| 197 | + |
| 198 | + public void Dispose() |
| 199 | + { |
| 200 | + _inner.Dispose(); |
| 201 | + } |
| 202 | + |
| 203 | + public void Prepare() |
| 204 | + { |
| 205 | + _inner.Prepare(); |
| 206 | + } |
| 207 | + |
| 208 | + public void Cancel() |
| 209 | + { |
| 210 | + _inner.Cancel(); |
| 211 | + } |
| 212 | + |
| 213 | + public IDbDataParameter CreateParameter() |
| 214 | + { |
| 215 | + return _inner.CreateParameter(); |
| 216 | + } |
| 217 | + |
| 218 | + public int ExecuteNonQuery() |
| 219 | + { |
| 220 | + var result = _inner.ExecuteNonQuery(); |
| 221 | + _postExecuteAction(this); |
| 222 | + return result; |
| 223 | + } |
| 224 | + |
| 225 | + public IDataReader ExecuteReader() |
| 226 | + { |
| 227 | + var result = _inner.ExecuteReader(); |
| 228 | + _postExecuteAction(this); |
| 229 | + return result; |
| 230 | + } |
| 231 | + |
| 232 | + public IDataReader ExecuteReader(CommandBehavior behavior) |
| 233 | + { |
| 234 | + var result = _inner.ExecuteReader(behavior); |
| 235 | + _postExecuteAction(this); |
| 236 | + return result; |
| 237 | + } |
| 238 | + |
| 239 | + public object ExecuteScalar() |
| 240 | + { |
| 241 | + var result = _inner.ExecuteScalar(); |
| 242 | + _postExecuteAction(this); |
| 243 | + return result; |
| 244 | + } |
| 245 | + |
| 246 | + public IDbConnection Connection |
| 247 | + { |
| 248 | + get { return _inner.Connection; } |
| 249 | + set { _inner.Connection = value; } |
| 250 | + } |
| 251 | + |
| 252 | + public IDbTransaction Transaction |
| 253 | + { |
| 254 | + get { return _inner.Transaction; } |
| 255 | + set { _inner.Transaction = value; } |
| 256 | + } |
| 257 | + |
| 258 | + public string CommandText |
| 259 | + { |
| 260 | + get { return _inner.CommandText; } |
| 261 | + set { _inner.CommandText = value; } |
| 262 | + } |
| 263 | + |
| 264 | + public int CommandTimeout |
| 265 | + { |
| 266 | + get { return _inner.CommandTimeout; } |
| 267 | + set { _inner.CommandTimeout = value; } |
| 268 | + } |
| 269 | + |
| 270 | + public CommandType CommandType |
| 271 | + { |
| 272 | + get { return _inner.CommandType; } |
| 273 | + set { _inner.CommandType = value; } |
| 274 | + } |
| 275 | + |
| 276 | + public IDataParameterCollection Parameters |
| 277 | + { |
| 278 | + get { return _inner.Parameters; } |
| 279 | + } |
| 280 | + |
| 281 | + public UpdateRowSource UpdatedRowSource |
| 282 | + { |
| 283 | + get { return _inner.UpdatedRowSource; } |
| 284 | + set { _inner.UpdatedRowSource = value; } |
| 285 | + } |
| 286 | + } |
| 287 | + } |
| 288 | + |
| 289 | + public class MultipleConnection |
| 290 | + { |
| 291 | + [AutoIncrement] |
| 292 | + public long Id { get; set; } |
| 293 | + |
| 294 | + public string Data { get; set; } |
| 295 | + } |
| 296 | +} |
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