Exemple #1
0
 public override void ReadBlock()
 {
     while (true)
     { // Read Each Tag-Field
         if (_CodedInputStream.IsAtEnd)
         {
             return;
         }
         if (_Type == 0)
         { // Determine the start of a message.
             while (_Tag == 0)
             {
                 try
                 {
                     if (_CodedInputStream.IsAtEnd)
                     {
                         return;
                     }
                     _Tag = _CodedInputStream.ReadTag();
                 }
                 catch (Google.Protobuf.InvalidProtocolBufferException e)
                 {
                     PlatDependant.LogError(e);
                 }
                 catch (InvalidOperationException e)
                 {
                     // this means the stream is closed. so we ignore the exception.
                     //PlatDependant.LogError(e);
                     return;
                 }
                 catch (Exception e)
                 {
                     PlatDependant.LogError(e);
                     return;
                 }
             }
         }
         else
         { // The Next tag must follow
             try
             {
                 _Tag = _CodedInputStream.ReadTag();
                 if (_Tag == 0)
                 {
                     ResetReadBlockContext();
                     continue;
                 }
             }
             catch (Exception e)
             {
                 PlatDependant.LogError(e);
                 ResetReadBlockContext();
                 continue;
             }
         }
         try
         { // Tag got.
             int seq   = Google.Protobuf.WireFormat.GetTagFieldNumber(_Tag);
             var ttype = Google.Protobuf.WireFormat.GetTagWireType(_Tag);
             if (seq == 1 && ttype == Google.Protobuf.WireFormat.WireType.Varint)
             {
                 ResetReadBlockContext();
                 _Type = _CodedInputStream.ReadUInt32();
             }
             else if (_Type != 0)
             {
                 if (seq == 2 && ttype == Google.Protobuf.WireFormat.WireType.Varint)
                 {
                     _Flags = _CodedInputStream.ReadUInt32();
                 }
                 else if (seq == 3 && ttype == Google.Protobuf.WireFormat.WireType.Varint)
                 {
                     _Seq = _CodedInputStream.ReadUInt32();
                 }
                 else if (seq == 4 && ttype == Google.Protobuf.WireFormat.WireType.Varint)
                 {
                     _SSeq = _CodedInputStream.ReadUInt32();
                 }
                 else if (seq == 5 && ttype == Google.Protobuf.WireFormat.WireType.LengthDelimited)
                 {
                     _Size = _CodedInputStream.ReadLength();
                     if (_Size >= 0)
                     {
                         if (_Size > CONST.MAX_MESSAGE_LENGTH)
                         {
                             PlatDependant.LogError("We got a too long message. We will drop this message and treat it as an error message.");
                             _CodedInputStream.SkipRawBytes(_Size);
                             FireReceiveBlock(null, 0, _Type, _Flags, _Seq, _SSeq);
                         }
                         else
                         {
                             _ReadBuffer.Clear();
                             _CodedInputStream.ReadRawBytes(_ReadBuffer, _Size);
                             FireReceiveBlock(_ReadBuffer, _Size, _Type, _Flags, _Seq, _SSeq);
                         }
                     }
                     else
                     {
                         FireReceiveBlock(null, 0, _Type, _Flags, _Seq, _SSeq);
                     }
                     ResetReadBlockContext();
                     return;
                 }
             }
             // else means the first field(type) has not been read yet.
             _Tag = 0;
         }
         catch (InvalidOperationException e)
         {
             // this means the stream is closed. so we ignore the exception.
             //PlatDependant.LogError(e);
             return;
         }
         catch (Exception e)
         {
             PlatDependant.LogError(e);
             ResetReadBlockContext();
         }
     }
 }