/// <summary>
/// Decode a value of the given type.
/// Should not be called directly. This interface is used by service client stubs.
/// </summary>
public static object Decode(ByteString value, Type type, Connection client)
{
var stream = new CodedInputStream (value.ToByteArray ());
if (type == typeof(double))
return stream.ReadDouble ();
else if (type == typeof(float))
return stream.ReadFloat ();
else if (type == typeof(int))
return stream.ReadInt32 ();
else if (type == typeof(long))
return stream.ReadInt64 ();
else if (type == typeof(uint))
return stream.ReadUInt32 ();
else if (type == typeof(ulong))
return stream.ReadUInt64 ();
else if (type == typeof(bool))
return stream.ReadBool ();
else if (type == typeof(string))
return stream.ReadString ();
else if (type == typeof(byte[]))
return stream.ReadBytes ().ToByteArray ();
else if (type.IsEnum)
return stream.ReadInt32 ();
else if (typeof(RemoteObject).IsAssignableFrom (type)) {
if (client == null)
throw new ArgumentException ("Client not passed when decoding remote object");
var id = stream.ReadUInt64 ();
if (id == 0)
return null;
return (RemoteObject)Activator.CreateInstance (type, client, id);
} else if (typeof(IMessage).IsAssignableFrom (type)) {
IMessage message = (IMessage)Activator.CreateInstance (type);
message.MergeFrom (stream);
return message;
} else if (type.IsGenericType && type.GetGenericTypeDefinition () == typeof(IList<>))
return DecodeList (value, type, client);
else if (type.IsGenericType && type.GetGenericTypeDefinition () == typeof(IDictionary<,>))
return DecodeDictionary (value, type, client);
else if (type.IsGenericType && type.GetGenericTypeDefinition () == typeof(ISet<>))
return DecodeSet (value, type, client);
else if (type.IsGenericType &&
(type.GetGenericTypeDefinition () == typeof(Tuple<>) ||
type.GetGenericTypeDefinition () == typeof(Tuple<,>) ||
type.GetGenericTypeDefinition () == typeof(Tuple<,,>) ||
type.GetGenericTypeDefinition () == typeof(Tuple<,,,>) ||
type.GetGenericTypeDefinition () == typeof(Tuple<,,,,>) ||
type.GetGenericTypeDefinition () == typeof(Tuple<,,,,,>)))
return DecodeTuple (value, type, client); // TODO: ugly handing of tuple types
throw new ArgumentException (type + " is not a serializable type");
}
public IMessage Decode(byte[] msg)
{
IMessage message = null;
CodedInputStream stream = new CodedInputStream(msg);
//data length,Protobuf 变长头, 也就是消息长度
int varint32 = (int)stream.ReadInt32();
if (varint32 <= (msg.Length - (int)stream.Position))
{
try
{
byte[] body = stream.ReadRawBytes(varint32);
message = Message.Parser.ParseFrom(body);
}
catch (Exception exception)
{
//"[ProtobufEncoding] Decode exception :{0}", exception.Message);
}
}
else
{
//"网络数据读取不完整，丢包了？");
}
return(message);
}
/// <summary>
/// 将数据解码
/// </summary>
public void DecodeAsync(byte[] msg)
{
if (msg.Length <= 0)
{
return;
}
if (buffer.Data == null)
{
buffer.Data = new byte[8192];
}
//把收取上来的自己全部缓存到本地 buffer 中
Array.Copy(msg, 0, buffer.Data, buffer.Length, msg.Length);
buffer.Length += msg.Length;
//string.Format("cache buff length: {0}, offset: {1}", buffer.Length, buffer.Offset));
CodedInputStream stream = new CodedInputStream(buffer.Data);
while (!stream.IsAtEnd)
{
//标记读取的Position, 在长度不够时进行数组拷贝，到下一次在进行解析
int markReadIndex = (int)stream.Position;
//data length,Protobuf 变长头, 也就是消息长度
int varint32 = (int)stream.ReadInt32();
if (varint32 <= (buffer.Length - (int)stream.Position))
{
try
{
byte[] body = stream.ReadRawBytes(varint32);
Message message = Message.Parser.ParseFrom(body);
SocketManager.Instance.DispatchProto(message);
//TODO: dispatcher message, 这里就可以用多线程进行协议分发
}
catch (Exception exception)
{
//exception.Message);
}
}
else
{
//本次数据不够长度,缓存进行下一次解析
byte[] dest = new byte[8192];
int remainSize = buffer.Length - markReadIndex;
Array.Copy(buffer.Data, markReadIndex, dest, 0, remainSize);
/**
* 缓存未处理完的字节
*/
buffer.Data = dest;
buffer.Offset = 0;
buffer.Length = remainSize;
break;
}
}
}
public void MergeFrom(CodedInputStream input)
{
while (true)
{
IL_D9:
uint num;
uint arg_9E_0 = ((num = input.ReadTag()) != 0u) ? 123760098u : 340881777u;
while (true)
{
uint num2;
switch ((num2 = (arg_9E_0 ^ 2069247364u)) % 8u)
{
case 0u:
input.SkipLastField();
arg_9E_0 = (num2 * 3109966835u ^ 1634015013u);
continue;
case 1u:
goto IL_D9;
case 2u:
this.End = input.ReadInt32();
arg_9E_0 = 651504541u;
continue;
case 3u:
this.Start = input.ReadInt32();
arg_9E_0 = 651504541u;
continue;
case 4u:
arg_9E_0 = (((num == 16u) ? 3653100894u : 3502071340u) ^ num2 * 176730384u);
continue;
case 6u:
arg_9E_0 = ((num != 8u) ? 730284952u : 1349205327u);
continue;
case 7u:
arg_9E_0 = 123760098u;
continue;
}
return;
}
}
}
public void TestCodedInputOutputPosition()
{
byte[] content = new byte[110];
for (int i = 0; i < content.Length; i++)
{
content[i] = (byte)i;
}
byte[] child = new byte[120];
{
MemoryStream ms = new MemoryStream(child);
CodedOutputStream cout = new CodedOutputStream(ms, 20);
// Field 11: numeric value: 500
cout.WriteTag(11, WireFormat.WireType.Varint);
Assert.AreEqual(1, cout.Position);
cout.WriteInt32(500);
Assert.AreEqual(3, cout.Position);
//Field 12: length delimited 120 bytes
cout.WriteTag(12, WireFormat.WireType.LengthDelimited);
Assert.AreEqual(4, cout.Position);
cout.WriteBytes(ByteString.CopyFrom(content));
Assert.AreEqual(115, cout.Position);
// Field 13: fixed numeric value: 501
cout.WriteTag(13, WireFormat.WireType.Fixed32);
Assert.AreEqual(116, cout.Position);
cout.WriteSFixed32(501);
Assert.AreEqual(120, cout.Position);
cout.Flush();
}
byte[] bytes = new byte[130];
{
CodedOutputStream cout = new CodedOutputStream(bytes);
// Field 1: numeric value: 500
cout.WriteTag(1, WireFormat.WireType.Varint);
Assert.AreEqual(1, cout.Position);
cout.WriteInt32(500);
Assert.AreEqual(3, cout.Position);
//Field 2: length delimited 120 bytes
cout.WriteTag(2, WireFormat.WireType.LengthDelimited);
Assert.AreEqual(4, cout.Position);
cout.WriteBytes(ByteString.CopyFrom(child));
Assert.AreEqual(125, cout.Position);
// Field 3: fixed numeric value: 500
cout.WriteTag(3, WireFormat.WireType.Fixed32);
Assert.AreEqual(126, cout.Position);
cout.WriteSFixed32(501);
Assert.AreEqual(130, cout.Position);
cout.Flush();
}
// Now test Input stream:
{
CodedInputStream cin = new CodedInputStream(new MemoryStream(bytes), new byte[50], 0, 0);
Assert.AreEqual(0, cin.Position);
// Field 1:
uint tag = cin.ReadTag();
Assert.AreEqual(1, tag >> 3);
Assert.AreEqual(1, cin.Position);
Assert.AreEqual(500, cin.ReadInt32());
Assert.AreEqual(3, cin.Position);
//Field 2:
tag = cin.ReadTag();
Assert.AreEqual(2, tag >> 3);
Assert.AreEqual(4, cin.Position);
int childlen = cin.ReadLength();
Assert.AreEqual(120, childlen);
Assert.AreEqual(5, cin.Position);
int oldlimit = cin.PushLimit((int)childlen);
Assert.AreEqual(5, cin.Position);
// Now we are reading child message
{
// Field 11: numeric value: 500
tag = cin.ReadTag();
Assert.AreEqual(11, tag >> 3);
Assert.AreEqual(6, cin.Position);
Assert.AreEqual(500, cin.ReadInt32());
Assert.AreEqual(8, cin.Position);
//Field 12: length delimited 120 bytes
tag = cin.ReadTag();
Assert.AreEqual(12, tag >> 3);
Assert.AreEqual(9, cin.Position);
ByteString bstr = cin.ReadBytes();
Assert.AreEqual(110, bstr.Length);
Assert.AreEqual((byte)109, bstr[109]);
Assert.AreEqual(120, cin.Position);
// Field 13: fixed numeric value: 501
tag = cin.ReadTag();
Assert.AreEqual(13, tag >> 3);
// ROK - Previously broken here, this returned 126 failing to account for bufferSizeAfterLimit
Assert.AreEqual(121, cin.Position);
Assert.AreEqual(501, cin.ReadSFixed32());
Assert.AreEqual(125, cin.Position);
Assert.IsTrue(cin.IsAtEnd);
}
cin.PopLimit(oldlimit);
Assert.AreEqual(125, cin.Position);
// Field 3: fixed numeric value: 501
tag = cin.ReadTag();
Assert.AreEqual(3, tag >> 3);
Assert.AreEqual(126, cin.Position);
Assert.AreEqual(501, cin.ReadSFixed32());
Assert.AreEqual(130, cin.Position);
Assert.IsTrue(cin.IsAtEnd);
}
}
public void TestCodedInputOutputPosition()
{
byte[] content = new byte[110];
for (int i = 0; i < content.Length; i++)
content[i] = (byte)i;
byte[] child = new byte[120];
{
MemoryStream ms = new MemoryStream(child);
CodedOutputStream cout = new CodedOutputStream(ms, 20);
// Field 11: numeric value: 500
cout.WriteTag(11, WireFormat.WireType.Varint);
Assert.AreEqual(1, cout.Position);
cout.WriteInt32(500);
Assert.AreEqual(3, cout.Position);
//Field 12: length delimited 120 bytes
cout.WriteTag(12, WireFormat.WireType.LengthDelimited);
Assert.AreEqual(4, cout.Position);
cout.WriteBytes(ByteString.CopyFrom(content));
Assert.AreEqual(115, cout.Position);
// Field 13: fixed numeric value: 501
cout.WriteTag(13, WireFormat.WireType.Fixed32);
Assert.AreEqual(116, cout.Position);
cout.WriteSFixed32(501);
Assert.AreEqual(120, cout.Position);
cout.Flush();
}
byte[] bytes = new byte[130];
{
CodedOutputStream cout = new CodedOutputStream(bytes);
// Field 1: numeric value: 500
cout.WriteTag(1, WireFormat.WireType.Varint);
Assert.AreEqual(1, cout.Position);
cout.WriteInt32(500);
Assert.AreEqual(3, cout.Position);
//Field 2: length delimited 120 bytes
cout.WriteTag(2, WireFormat.WireType.LengthDelimited);
Assert.AreEqual(4, cout.Position);
cout.WriteBytes(ByteString.CopyFrom(child));
Assert.AreEqual(125, cout.Position);
// Field 3: fixed numeric value: 500
cout.WriteTag(3, WireFormat.WireType.Fixed32);
Assert.AreEqual(126, cout.Position);
cout.WriteSFixed32(501);
Assert.AreEqual(130, cout.Position);
cout.Flush();
}
// Now test Input stream:
{
CodedInputStream cin = new CodedInputStream(new MemoryStream(bytes), new byte[50], 0, 0);
Assert.AreEqual(0, cin.Position);
// Field 1:
uint tag = cin.ReadTag();
Assert.AreEqual(1, tag >> 3);
Assert.AreEqual(1, cin.Position);
Assert.AreEqual(500, cin.ReadInt32());
Assert.AreEqual(3, cin.Position);
//Field 2:
tag = cin.ReadTag();
Assert.AreEqual(2, tag >> 3);
Assert.AreEqual(4, cin.Position);
int childlen = cin.ReadLength();
Assert.AreEqual(120, childlen);
Assert.AreEqual(5, cin.Position);
int oldlimit = cin.PushLimit((int)childlen);
Assert.AreEqual(5, cin.Position);
// Now we are reading child message
{
// Field 11: numeric value: 500
tag = cin.ReadTag();
Assert.AreEqual(11, tag >> 3);
Assert.AreEqual(6, cin.Position);
Assert.AreEqual(500, cin.ReadInt32());
Assert.AreEqual(8, cin.Position);
//Field 12: length delimited 120 bytes
tag = cin.ReadTag();
Assert.AreEqual(12, tag >> 3);
Assert.AreEqual(9, cin.Position);
ByteString bstr = cin.ReadBytes();
Assert.AreEqual(110, bstr.Length);
Assert.AreEqual((byte) 109, bstr[109]);
Assert.AreEqual(120, cin.Position);
// Field 13: fixed numeric value: 501
tag = cin.ReadTag();
Assert.AreEqual(13, tag >> 3);
// ROK - Previously broken here, this returned 126 failing to account for bufferSizeAfterLimit
Assert.AreEqual(121, cin.Position);
Assert.AreEqual(501, cin.ReadSFixed32());
Assert.AreEqual(125, cin.Position);
Assert.IsTrue(cin.IsAtEnd);
}
cin.PopLimit(oldlimit);
Assert.AreEqual(125, cin.Position);
// Field 3: fixed numeric value: 501
tag = cin.ReadTag();
Assert.AreEqual(3, tag >> 3);
Assert.AreEqual(126, cin.Position);
Assert.AreEqual(501, cin.ReadSFixed32());
Assert.AreEqual(130, cin.Position);
Assert.IsTrue(cin.IsAtEnd);
}
}
internal int <ForInt32> b__3_0(CodedInputStream input)
{
return(input.ReadInt32());
}
/// <summary>
/// Convert a Protocol Buffer value type, encoded as a byte string, to a C# value.
/// </summary>
public static object ReadValue(ByteString value, Type type)
{
if (value.Length == 0)
throw new ArgumentException ("Value is empty");
var stream = new CodedInputStream (value.ToByteArray ());
if (type == typeof(double)) {
return stream.ReadDouble ();
} else if (type == typeof(float)) {
return stream.ReadFloat ();
} else if (type == typeof(int)) {
return stream.ReadInt32 ();
} else if (type == typeof(long)) {
return stream.ReadInt64 ();
} else if (type == typeof(uint)) {
return stream.ReadUInt32 ();
} else if (type == typeof(ulong)) {
return stream.ReadUInt64 ();
} else if (type == typeof(bool)) {
return stream.ReadBool ();
} else if (type == typeof(string)) {
return stream.ReadString ();
} else if (type == typeof(byte[])) {
return stream.ReadBytes ().ToByteArray();
}
throw new ArgumentException (type + " is not a Protocol Buffer value type");
}
