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ahmed
2025-09-03 04:10:28 +03:00
parent 4a5145b9b8
commit 14c49d7ffe
4 changed files with 192 additions and 197 deletions
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51
Esiur/Data/TransmissionDataUnit.cs
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@@ -15,18 +15,21 @@ public struct TransmissionDataUnit
public ulong ContentLength;
public byte Exponent;
public byte[] Data;
public TransmissionDataUnit(byte[] data, TransmissionDataUnitIdentifier identifier,
TransmissionDataUnitClass cls, int index, uint offset,
ulong contentLength, byte exponent = 0)
public byte[] Metadata;
public TransmissionDataUnit(TransmissionDataUnitIdentifier identifier,
byte[] data, uint offset,
ulong length, byte[] metadata = null,
byte exponent = 0)
{
Identifier = identifier;
Index = index;
Class = cls;
Offset=offset;
ContentLength = contentLength;
Index = (byte)identifier & 0x7;
Class = (TransmissionDataUnitClass)((byte)identifier >> 6);
Offset = offset;
ContentLength = length;
Exponent = exponent;
Data = data;
Metadata = metadata;
}
public byte[] GetTypeMetadata()
@@ -38,6 +41,22 @@ public struct TransmissionDataUnit
return Data.Clip(Offset + 1, size);
}
public bool MatchType(TransmissionDataUnit with)
{
if (Identifier != with.Identifier)
return false;
if (Class == TransmissionDataUnitClass.Typed)
if (!Metadata.SequenceEqual(with.Metadata))
return false;
return true;
}
public byte[] Compose()
{
return null;
}
public static byte[] Compose(TransmissionDataUnitIdentifier identifier, byte[] data, byte[] typeMetadata)
{
@@ -57,7 +76,7 @@ public struct TransmissionDataUnit
if (len == 0)
{
return new byte[1] { (byte) identifier };
return new byte[1] { (byte)identifier };
}
else if (len <= 0xFF)
{
@@ -72,7 +91,7 @@ public struct TransmissionDataUnit
var rt = new byte[3 + len];
rt[0] = (byte)((byte)identifier | 0x10);
rt[1] = (byte)((len >> 8) & 0xFF);
rt[2] = (byte)(len & 0xFF);
rt[2] = (byte)(len & 0xFF);
Buffer.BlockCopy(data, 0, rt, 3, (int)len);
return rt;
}
@@ -139,7 +158,7 @@ public struct TransmissionDataUnit
}
else if (cls == TransmissionDataUnitClass.Typed)
{
var len = 1 + (ulong)typeMetadata.LongLength + (ulong)data.LongLength;
if (len == 0)
@@ -250,7 +269,7 @@ public struct TransmissionDataUnit
public static (ulong, TransmissionDataUnit?) Parse(byte[] data, uint offset, uint ends)
{
var h = data[offset++];
var cls = (TransmissionDataUnitClass)(h >> 6);
if (cls == TransmissionDataUnitClass.Fixed)
@@ -260,9 +279,9 @@ public struct TransmissionDataUnit
if (exp == 0)
return (1, new TransmissionDataUnit(data, (TransmissionDataUnitIdentifier)h, cls, h & 0x7, 0, (byte)exp));
ulong cl = (ulong)(1 << (exp -1));
ulong cl = (ulong)(1 << (exp - 1));
if (ends - offset < cl)
if (ends - offset < cl)
return (cl - (ends - offset), null);
//offset += (uint)cl;
@@ -277,14 +296,14 @@ public struct TransmissionDataUnit
return (cll - (ends - offset), null);
ulong cl = 0;
for (uint i = 0; i < cll; i++)
cl = cl << 8 | data[offset++];
if (ends - offset < cl)
return (cl - (ends - offset), null);
return (1 + cl + cll, new TransmissionDataUnit(data, (TransmissionDataUnitIdentifier)(h & 0xC7), cls, h & 0x7, offset, cl));
}
}