internal SortedTreeTableReadSnapshot(ReadSnapshot currentTransaction, SubFileName fileName)
{
try
{
m_subStream = currentTransaction.OpenFile(fileName);
m_binaryStream = new BinaryStream(m_subStream);
m_tree = SortedTree <TKey, TValue> .Open(m_binaryStream);
}
catch
{
Dispose();
throw;
}
}
public void Test()
{
Assert.AreEqual(Globals.MemoryPool.AllocatedBytes, 0L);
//string file = Path.GetTempFileName();
//System.IO.File.Delete(file);
try
{
//using (FileSystemSnapshotService service = FileSystemSnapshotService.CreateFile(file))
using (TransactionalFileStructure service = TransactionalFileStructure.CreateInMemory(BlockSize))
{
using (TransactionalEdit edit = service.BeginEdit())
{
SubFileStream fs = edit.CreateFile(SubFileName.CreateRandom());
BinaryStream bs = new BinaryStream(fs);
bs.Write((byte)1);
bs.Dispose();
fs.Dispose();
edit.CommitAndDispose();
}
{
ReadSnapshot read = service.Snapshot;
SubFileStream f1 = read.OpenFile(0);
BinaryStream bs1 = new BinaryStream(f1);
if (bs1.ReadUInt8() != 1)
{
throw new Exception();
}
using (TransactionalEdit edit = service.BeginEdit())
{
SubFileStream f2 = edit.OpenFile(0);
BinaryStream bs2 = new BinaryStream(f2);
if (bs2.ReadUInt8() != 1)
{
throw new Exception();
}
bs2.Write((byte)3);
bs2.Dispose();
} //rollback should be issued;
if (bs1.ReadUInt8() != 0)
{
throw new Exception();
}
bs1.Dispose();
{
ReadSnapshot read2 = service.Snapshot;
SubFileStream f2 = read2.OpenFile(0);
BinaryStream bs2 = new BinaryStream(f2);
if (bs2.ReadUInt8() != 1)
{
throw new Exception();
}
if (bs2.ReadUInt8() != 0)
{
throw new Exception();
}
bs2.Dispose();
}
}
using (TransactionalEdit edit = service.BeginEdit())
{
SubFileStream f2 = edit.OpenFile(0);
BinaryStream bs2 = new BinaryStream(f2);
bs2.Write((byte)13);
bs2.Write((byte)23);
bs2.Dispose();
edit.RollbackAndDispose();
} //rollback should be issued;
}
}
finally
{
//System.IO.File.Delete(file);
}
Assert.AreEqual(Globals.MemoryPool.AllocatedBytes, 0L);
Assert.IsTrue(true);
}
internal SortedTreeTableSnapshotInfo(TransactionalFileStructure fileStructure, SubFileName fileName)
{
m_fileName = fileName;
m_fileStructure = fileStructure;
m_currentTransaction = m_fileStructure.Snapshot;
}
