public void TestDiscard()
{
DatabaseEnvironment env;
byte[] gid;
testName = "TestDiscard";
testHome = testFixtureHome + "/" + testName;
Configuration.ClearDir(testHome);
/*
* Open an environment and begin a transaction
* called "transaction". Within the transacion, open a
* database, write a record and close it. Then prepare
* the transaction and panic the environment.
*/
PanicPreparedTxn(testHome, testName, out env, out gid);
/*
* Recover the environment. Log and db files are not
* destoyed so run normal recovery. Recovery should
* use DB_CREATE and DB_INIT_TXN flags when
* opening the environment.
*/
DatabaseEnvironmentConfig envConfig
= new DatabaseEnvironmentConfig();
envConfig.RunRecovery = true;
envConfig.Create = true;
envConfig.UseTxns = true;
envConfig.UseMPool = true;
env = DatabaseEnvironment.Open(testHome, envConfig);
PreparedTransaction[] preparedTxns
= new PreparedTransaction[10];
preparedTxns = env.Recover(10, true);
Assert.AreEqual(gid, preparedTxns[0].GlobalID);
preparedTxns[0].Txn.Discard();
try
{
preparedTxns[0].Txn.Commit();
}
catch (AccessViolationException)
{
throw new ExpectedTestException();
}
finally
{
env.Close();
}
}
internal PreparedTransaction[] txn_recover(uint count, uint flags)
{
int err = 0;
IntPtr prepp = Marshal.AllocHGlobal((int)(count * (IntPtr.Size + DbConstants.DB_GID_SIZE)));
uint sz = 0;
err = txn_recover(prepp, count, ref sz, flags);
DatabaseException.ThrowException(err);
PreparedTransaction[] ret = new PreparedTransaction[sz];
for (int i = 0; i < sz; i++)
{
IntPtr cPtr = new IntPtr((IntPtr.Size == 4 ? prepp.ToInt32() : prepp.ToInt64()) + i * (IntPtr.Size + DbConstants.DB_GID_SIZE));
DB_PREPLIST prep = new DB_PREPLIST(cPtr, false);
ret[i] = new PreparedTransaction(prep);
}
Marshal.FreeHGlobal(prepp);
return(ret);
}
internal PreparedTransaction[] txn_recover(int count, uint flags)
{
int err = 0;
IntPtr prepp = Marshal.AllocHGlobal((int)(count * (IntPtr.Size + DbConstants.DB_GID_SIZE)));
long sz = 0;
err = txn_recover(prepp, count, ref sz, flags);
DatabaseException.ThrowException(err);
PreparedTransaction[] ret = new PreparedTransaction[sz];
for (long i = 0; i < sz; i++) {
IntPtr cPtr = new IntPtr((IntPtr.Size == 4 ? prepp.ToInt32() : prepp.ToInt64()) + i * (IntPtr.Size + DbConstants.DB_GID_SIZE));
DB_PREPLIST prep = new DB_PREPLIST(cPtr, false);
ret[i] = new PreparedTransaction(prep);
}
Marshal.FreeHGlobal(prepp);
return ret;
}
