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Support writing logically block addressable tapes in dicformat.

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This commit is contained in:
Natalia Portillo
2019-05-01 22:51:30 +01:00
parent 9ec6787175
commit 9dd03546a1
6 changed files with 216 additions and 15 deletions
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78
DiscImageChef.DiscImages/DiscImageChef/Structs.cs
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@@ -86,7 +86,7 @@ namespace DiscImageChef.DiscImages
/// <summary>CRC64-ECMA of the compressed DDT</summary>
public ulong cmpCrc64;
/// <summary>CRC64-ECMA of the uncompressed DDT</summary>
public ulong crc64;
public readonly ulong crc64;
}
/// <summary>Header for the index, followed by entries</summary>
@@ -314,5 +314,81 @@ namespace DiscImageChef.DiscImages
/// <summary>Length in bytes of checksum that follows this structure</summary>
public uint length;
}
/// <summary>
/// Tape file block, contains a list of all files in a tape
/// </summary>
[StructLayout(LayoutKind.Sequential, Pack = 1)]
struct TapeFileHeader
{
/// <summary>Identifier, <see cref="BlockType.TapeFileBlock" /></summary>
public BlockType identifier;
/// <summary>How many entries follow this header</summary>
public uint entries;
/// <summary>Size of the whole block, not including this header, in bytes</summary>
public ulong length;
/// <summary>CRC64-ECMA of the block</summary>
public ulong crc64;
}
/// <summary>
/// Tape file entry
/// </summary>
[StructLayout(LayoutKind.Sequential, Pack = 1)]
struct TapeFileEntry
{
/// <summary>
/// File number
/// </summary>
public uint File;
/// <summary>
/// Partition number
/// </summary>
public readonly byte Partition;
/// <summary>
/// First block, inclusive, of the file
/// </summary>
public ulong FirstBlock;
/// <summary>
/// Last block, inclusive, of the file
/// </summary>
public ulong LastBlock;
}
/// <summary>
/// Tape partition block, contains a list of all partitions in a tape
/// </summary>
[StructLayout(LayoutKind.Sequential, Pack = 1)]
struct TapePartitionHeader
{
/// <summary>Identifier, <see cref="BlockType.TapePartitionBlock" /></summary>
public BlockType identifier;
/// <summary>How many entries follow this header</summary>
public byte entries;
/// <summary>Size of the whole block, not including this header, in bytes</summary>
public ulong length;
/// <summary>CRC64-ECMA of the block</summary>
public ulong crc64;
}
/// <summary>
/// Tape partition entry
/// </summary>
[StructLayout(LayoutKind.Sequential, Pack = 1)]
public struct TapePartitionEntry
{
/// <summary>
/// Partition number
/// </summary>
public byte Number;
/// <summary>
/// First block, inclusive, of the partition
/// </summary>
public ulong FirstBlock;
/// <summary>
/// Last block, inclusive, of the partition
/// </summary>
public ulong LastBlock;
}
}
}