private void Check_NO_UNDO(string filename, DurableFileStream.FailedCommitCode failedCommitCode)
{
int bufferSize = 10005;
byte[] writeBuffer = new byte[bufferSize];
Helper.SetArrayRandomly(writeBuffer);
// Writer
try
{
DurableFileStream dfs = new DurableFileStream(filename, true);
dfs.Write(writeBuffer, 0, bufferSize);
dfs.__FailedCommitSimulation__(failedCommitCode);
Assert.Fail("should not pass here!");
dfs.Close();
}
catch (Exception)
{
DurableFileStream dfs = new DurableFileStream(filename, false);
Assert.AreEqual<long>(dfs.Position, 0);
Assert.AreEqual<long>(dfs.Length, 0);
dfs.Write(writeBuffer, 0, bufferSize);
dfs.Commit();
Assert.AreEqual<long>(dfs.Position, bufferSize);
Assert.AreEqual<long>(dfs.Length, bufferSize);
long x = 9876543210;
dfs.Write(BitConverter.GetBytes(x), 0, 8);
dfs.Commit();
Assert.AreEqual<long>(dfs.Position, bufferSize + 8);
Assert.AreEqual<long>(dfs.Length, bufferSize + 8);
dfs.Close();
dfs = new DurableFileStream(filename, false);
byte[] readBuffer = new byte[bufferSize];
dfs.Read(readBuffer, 0, bufferSize);
Assert.IsTrue(Helper.EqualArray(writeBuffer, readBuffer));
dfs.Read(readBuffer, 0, 8);
long y = BitConverter.ToInt64(readBuffer, 0);
Assert.AreEqual<long>(x, y);
dfs.Close();
}
}
public void TestRenewCheckpoint_AfterDiskWrite()
{
int bufferSize = 20000;
byte[] writeBuffer1 = new byte[bufferSize];
Helper.SetArrayRandomly(writeBuffer1);
byte[] writeBuffer2 = new byte[bufferSize];
Helper.SetArrayRandomly(writeBuffer2);
long checkpointAdr = 0;
try
{
// writer
DurableFileStream dfs = new DurableFileStream("TestRenewCheckpoint_4.dat", true);
dfs.Write(writeBuffer1, 0, bufferSize);
dfs.Commit();
dfs.Write(writeBuffer2, 0, writeBuffer2.Length);
dfs.__FailedCommitSimulation__(DurableFileStream.FailedCommitCode.CHECKPOINT_AFTER_DISK_WRITE);
Assert.Fail("should not pass here!");
dfs.Close();
}
catch (Exception)
{
// reader
DurableFileStream dfs = new DurableFileStream("TestRenewCheckpoint_4.dat", false);
byte[] readBuffer1 = new byte[bufferSize];
dfs.Read(readBuffer1, 0, bufferSize);
Assert.IsTrue(Helper.EqualArray(readBuffer1, writeBuffer1));
byte[] readBuffer2 = new byte[writeBuffer2.Length];
dfs.Read(readBuffer2, 0, readBuffer2.Length);
dfs.Close();
}
}
public void TestRenewCheckpoint_AfterLogBegin1()
{
int bufferSize = 20000;
byte[] writeBuffer = new byte[bufferSize];
Helper.SetArrayRandomly(writeBuffer);
try
{
DurableFileStream dfs = new DurableFileStream("TestRenewCheckpoint_AfterLogBegin1.dat", true);
dfs.Write(writeBuffer, 0, bufferSize);
dfs.__FailedCommitSimulation__(DurableFileStream.FailedCommitCode.CHECKPOINT_AFTER_LOG_BEGIN);
Assert.Fail("should not pass here!");
dfs.Close();
}
catch (Exception)
{
// reader
DurableFileStream dfs = new DurableFileStream("TestRenewCheckpoint_AfterLogBegin1.dat", false);
byte[] readBuffer = new byte[bufferSize];
dfs.Read(readBuffer, 0, bufferSize);
Assert.IsTrue(Helper.EqualArray(readBuffer, writeBuffer));
dfs.Close();
}
}
private void Check_REDO(string filename, DurableFileStream.FailedCommitCode failedCommitCode)
{
int bufferSize = 10005;
byte[] writeBuffer = new byte[bufferSize];
Helper.SetArrayRandomly(writeBuffer);
try
{
// Writer
DurableFileStream dfs = new DurableFileStream(filename, true);
dfs.Write(writeBuffer, 0, bufferSize);
dfs.__FailedCommitSimulation__(failedCommitCode);
Assert.Fail("should not pass here!");
dfs.Close();
}
catch (Exception)
{
// reader
DurableFileStream dfs = new DurableFileStream(filename, false);
Assert.AreEqual<long>(dfs.Position, 0);
Assert.AreEqual<long>(dfs.Length, bufferSize);
byte[] readBuffer = new byte[bufferSize];
dfs.Read(readBuffer, 0, bufferSize);
Assert.IsTrue(Helper.EqualArray(writeBuffer, readBuffer));
Assert.AreEqual<long>(dfs.Position, bufferSize);
Assert.AreEqual<long>(dfs.Length, bufferSize);
dfs.Close();
}
}