public void Test1()
{
File.Delete(@"C:\Temp\fileTemp.~d2i");
File.Delete(@"C:\Temp\fileTemp.d2i");
using (SimplifiedFileWriter writer = new SimplifiedFileWriter(@"C:\Temp\fileTemp.~d2i", @"C:\Temp\fileTemp.d2i", 4096, FileFlags.ManualRollover))
{
using (ISupportsBinaryStream file = writer.CreateFile(SubFileName.CreateRandom()))
using (BinaryStream bs = new BinaryStream(file))
{
bs.Write(1);
}
writer.Commit();
}
using (TransactionalFileStructure reader = TransactionalFileStructure.OpenFile(@"C:\Temp\fileTemp.d2i", true))
{
using (SubFileStream file = reader.Snapshot.OpenFile(0))
using (BinaryStream bs = new BinaryStream(file))
{
if (bs.ReadInt32() != 1)
{
throw new Exception();
}
}
}
}
/// <summary>
/// Opens a ArchiveFileStream that can be used to read/write to the file passed to this function.
/// </summary>
/// <param name="fileIndex">The index of the file to open.</param>
/// <returns></returns>
public SubFileStream OpenFile(int fileIndex)
{
if (m_disposed)
{
throw new ObjectDisposedException(GetType().FullName);
}
if (fileIndex < 0 || fileIndex >= m_fileHeaderBlock.Files.Count)
{
throw new ArgumentOutOfRangeException("fileIndex", "The file index provided could not be found in the header.");
}
SubFileHeader subFile = m_fileHeaderBlock.Files[fileIndex];
SubFileStream fileStream = new SubFileStream(m_dataReader, subFile, m_fileHeaderBlock, isReadOnly: false);
m_openedFiles.Add(fileStream);
return(fileStream);
}
public void TestMultipleFiles()
{
Random r = new Random(1);
File.Delete(@"C:\Temp\fileTemp.~d2i");
File.Delete(@"C:\Temp\fileTemp.d2i");
using (SimplifiedFileWriter writer = new SimplifiedFileWriter(@"C:\Temp\fileTemp.~d2i", @"C:\Temp\fileTemp.d2i", 4096, FileFlags.ManualRollover))
{
for (int i = 0; i < 10; i++)
{
using (ISupportsBinaryStream file = writer.CreateFile(SubFileName.CreateRandom()))
using (BinaryStream bs = new BinaryStream(file))
{
bs.Write((byte)1);
for (int x = 0; x < 100000; x++)
{
bs.Write(r.NextDouble());
}
}
}
writer.Commit();
}
r = new Random(1);
using (TransactionalFileStructure reader = TransactionalFileStructure.OpenFile(@"C:\Temp\fileTemp.d2i", true))
{
for (int i = 0; i < 10; i++)
{
using (SubFileStream file = reader.Snapshot.OpenFile(i))
using (BinaryStream bs = new BinaryStream(file))
{
if (bs.ReadUInt8() != 1)
{
throw new Exception();
}
for (int x = 0; x < 100000; x++)
{
if (bs.ReadDouble() != r.NextDouble())
{
throw new Exception();
}
}
}
}
}
}
public IoSession(SubFileStream stream)
{
m_stream = stream;
m_lastEditedBlock = stream.m_dataReader.LastCommittedHeader.LastAllocatedBlock;
m_isReadOnly = stream.m_isReadOnly;
m_blockDataLength = m_stream.m_blockSize - FileStructureConstants.BlockFooterLength;
m_ioSessions = new SubFileDiskIoSessionPool(stream.m_dataReader, stream.m_fileHeaderBlock, stream.m_subFile, stream.m_isReadOnly);
if (m_isReadOnly)
{
m_parser = new IndexParser(m_ioSessions);
}
else
{
m_pager = new ShadowCopyAllocator(m_ioSessions);
m_parser = m_pager;
}
}
public IoSession(SubFileStream stream)
{
m_stream = stream;
m_lastEditedBlock = stream.m_dataReader.LastCommittedHeader.LastAllocatedBlock;
m_isReadOnly = stream.m_isReadOnly;
m_blockDataLength = m_stream.m_blockSize - FileStructureConstants.BlockFooterLength;
m_ioSessions = new SubFileDiskIoSessionPool(stream.m_dataReader, stream.m_fileHeaderBlock, stream.m_subFile, stream.m_isReadOnly);
if (m_isReadOnly)
{
m_parser = new IndexParser(m_ioSessions);
}
else
{
m_pager = new ShadowCopyAllocator(m_ioSessions);
m_parser = m_pager;
}
}
public SimplifiedIoSession(SubFileStream stream)
{
m_stream = stream;
m_dataIoSession = stream.m_dataReader.CreateDiskIoSession(stream.m_fileHeaderBlock, stream.m_subFile);
m_blockDataLength = m_stream.m_blockSize - FileStructureConstants.BlockFooterLength;
}
public SimplifiedIoSession(SubFileStream stream)
{
m_stream = stream;
m_dataIoSession = stream.m_dataReader.CreateDiskIoSession(stream.m_fileHeaderBlock, stream.m_subFile);
m_blockDataLength = m_stream.m_blockSize - FileStructureConstants.BlockFooterLength;
}