/// <summary>
/// Saves the file to the specified stream.
/// </summary>
/// <param name="stream">The stream to save to.</param>
public override void Save(Stream stream)
{
BinaryWriter writer = new BinaryWriter(stream, Encoding.GetEncoding("us-ascii"));
writer.Write(BaseVersion);
writer.Write(CurrentVersion);
writer.Write(FileSystems.Count);
long[] fileSystemOffsets = new long[FileSystems.Count];
for (int i = 0; i < FileSystems.Count; i++)
{
VirtualFileIndexSystem fileSystem = FileSystems[i];
writer.WriteShortString(fileSystem.FileName);
fileSystemOffsets[i] = stream.Position;
writer.Write(0);
}
for (int i = 0; i < FileSystems.Count; i++)
{
VirtualFileIndexSystem fileSystem = FileSystems[i];
long entryOffset = stream.Position;
stream.Seek(fileSystemOffsets[i], SeekOrigin.Begin);
writer.Write((int)entryOffset);
stream.Seek(entryOffset, SeekOrigin.Begin);
var deletedFiles = from f in fileSystem.Files
where f.IsDeleted
select f;
var startOffset = from f in fileSystem.Files
orderby f.Offset
select f.Offset;
writer.Write(fileSystem.Files.Count);
writer.Write(deletedFiles.Count());
writer.Write(startOffset.First());
fileSystem.Files.ForEach(file => {
writer.WriteShortString(file.FilePath);
writer.Write(file.Offset);
writer.Write(file.Size);
writer.Write(file.BlockSize);
writer.Write(file.IsDeleted);
writer.Write(file.IsCompressed);
writer.Write(file.IsEncrypted);
writer.Write(file.Version);
writer.Write(file.Checksum);
});
}
}
/// <summary>
/// Loads the file from the specified stream.
/// </summary>
/// <param name="stream">The stream to read from.</param>
public override void Load(Stream stream)
{
BinaryReader reader = new BinaryReader(stream, Encoding.GetEncoding("us-ascii"));
BaseVersion = reader.ReadInt32();
CurrentVersion = reader.ReadInt32();
int fileSystemCount = reader.ReadInt32();
for (int i = 0; i < fileSystemCount; i++)
{
VirtualFileIndexSystem fileSystem = new VirtualFileIndexSystem();
fileSystem.FileName = reader.ReadShortString();
int offset = reader.ReadInt32();
long nextFileSystem = stream.Position;
stream.Seek(offset, SeekOrigin.Begin);
int fileCount = reader.ReadInt32();
int deleteCount = reader.ReadInt32();
int startOffset = reader.ReadInt32();
for (int j = 0; j < fileCount; j++)
{
VirtualFileIndexEntry file = new VirtualFileIndexEntry();
file.FilePath = reader.ReadShortString();
file.Offset = reader.ReadInt32();
file.Size = reader.ReadInt32();
file.BlockSize = reader.ReadInt32();
file.IsDeleted = reader.ReadBoolean();
file.IsCompressed = reader.ReadBoolean();
file.IsEncrypted = reader.ReadBoolean();
file.Version = reader.ReadInt32();
file.Checksum = reader.ReadInt32();
fileSystem.Files.Add(file);
}
FileSystems.Add(fileSystem);
if (i < fileSystemCount - 1)
{
stream.Seek(nextFileSystem, SeekOrigin.Begin);
}
}
}
