public async Task <ICollection <ParticularMatterDataPacket> > ReadPacketsAsync(int bytesToRead)
{
var buffer = new byte[bytesToRead];
var bytesRead = await _baseStream.ReadAsync(buffer, 0, buffer.Length);
ICollection <ParticularMatterDataPacket> resultList = new List <ParticularMatterDataPacket>();
for (var index = 0; index < bytesRead; index++)
{
if (buffer[index] != ParticularMatterDataPacket.MessageHeader)
{
continue;
}
if (buffer[++index] != ParticularMatterDataPacket.CommanderNo)
{
continue;
}
index++;
var result = new ParticularMatterDataPacket();
result.SetPm25(ReadUint(buffer, ref index));
result.SetPm10(ReadUint(buffer, ref index));
result.Id1 = buffer[index++];
result.Id2 = buffer[index++];
if (buffer[index++] != result.Checksum)
{
continue;
}
if (buffer[index] != ParticularMatterDataPacket.MessageTail)
{
continue;
}
resultList.Add(result);
}
return(resultList);
}
private void OnPacketReceived(ParticularMatterDataPacket packet) => PacketReceived?.Invoke(this, packet);