public void TestConsumeWithoutTxn()
{
testName = "TestConsumeWithoutTxn";
testHome = testFixtureHome + "/" + testName;
string queueDBFileName = testHome + "/" +
testName + ".db";
Configuration.ClearDir(testHome);
QueueDatabaseConfig queueConfig =
new QueueDatabaseConfig();
queueConfig.Creation = CreatePolicy.ALWAYS;
queueConfig.ErrorPrefix = testName;
queueConfig.Length = 1000;
QueueDatabase queueDB = QueueDatabase.Open(
queueDBFileName, queueConfig);
DatabaseEntry data = new DatabaseEntry(
ASCIIEncoding.ASCII.GetBytes("data"));
queueDB.Append(data);
DatabaseEntry consumeData = new DatabaseEntry();
KeyValuePair <uint, DatabaseEntry> pair = queueDB.Consume(false);
try
{
DatabaseEntry key =
new DatabaseEntry(BitConverter.GetBytes(pair.Key));
queueDB.Get(key);
}
catch (NotFoundException)
{
throw new ExpectedTestException();
}
finally
{
queueDB.Close();
}
}
public void TestConsumeWithTxn()
{
testName = "TestConsumeWithTxn";
testHome = testFixtureHome + "/" + testName;
string queueDBFileName = testHome + "/" + testName + ".db";
string queueDBName = Path.GetFileName(queueDBFileName);
Configuration.ClearDir(testHome);
DatabaseEnvironmentConfig envConfig =
new DatabaseEnvironmentConfig();
envConfig.Create = true;
envConfig.UseTxns = true;
envConfig.UseMPool = true;
DatabaseEnvironment env = DatabaseEnvironment.Open(
testHome, envConfig);
Transaction txn = env.BeginTransaction();
QueueDatabaseConfig queueConfig =
new QueueDatabaseConfig();
queueConfig.Creation = CreatePolicy.ALWAYS;
queueConfig.Env = env;
queueConfig.Length = 1000;
QueueDatabase queueDB = QueueDatabase.Open(
queueDBName, queueConfig, txn);
int i = 1;
DatabaseEntry data;
DatabaseEntry getData = new DatabaseEntry();
while (i <= 10)
{
data = new DatabaseEntry(
ASCIIEncoding.ASCII.GetBytes(i.ToString()));
queueDB.Append(data, txn);
if (i == 5)
{
getData = data;
}
i++;
}
KeyValuePair <uint, DatabaseEntry> pair = queueDB.Consume(false, txn);
queueDB.Close();
txn.Commit();
env.Close();
Database db = Database.Open(queueDBFileName,
new QueueDatabaseConfig());
try
{
DatabaseEntry key =
new DatabaseEntry(BitConverter.GetBytes(pair.Key));
db.Get(key);
}
catch (NotFoundException)
{
throw new ExpectedTestException();
}
finally
{
db.Close();
}
}