private void ProcessBuffer(byte[] data)
{
if (mReceiveBuffer == null)
{
mReceiveBuffer = Buffer.Create(msgProtocolType);
mReceiveBuffer.BeginWriting(false).Write(data);
}
else
{
mReceiveBuffer.BeginWriting(true).Write(data); //如果之前的包没处理完全，则继续添加
}
//首先判断是否收满了一个完整包的最小长度
for (int available = mReceiveBuffer.size - mOffset; available >= packetLenMin;)
{
//计算一个完整包的长度，包括包头和包尾
if (mExpected == 0)
{
if (msgProtocolType == 1 || msgProtocolType == 2)
{
mExpected = (int)mReceiveBuffer.PeekUInt32(mOffset + packetHeadLenOffest) + packetLenMin; //收到的包第3-7个字节为包的长度
// Debug.LogWarning(string.Format("cmd: {3} -- mExpected大小：{0} -- available大小：{1} -- packetLenMin{2}", mExpected, available, packetLenMin, mReceiveBuffer.PeekUInt32(0)));
}
else
{
mExpected = mReceiveBuffer.PeekUInt16(mOffset + packetHeadLenOffest, true) + packetLenMin; //收到的包第0-1个字节为整个包包的长度
// Debug.LogFormat("bytes={0} expected={1}", bytes, mExpected);
}
}
//正好是一个完整包
if (available == mExpected)
{
if (mOffset > 0) //如果是多个包的最后一个包
{
mReceiveBuffer.BeginWriting(false).Write(mReceiveBuffer.buffer, mOffset, (int)mExpected);
}
EnqueuePacker(mReceiveBuffer);
mReceiveBuffer = null;
mExpected = 0;
mOffset = 0;
break;
}
if (available > mExpected) //收到大于一个包
{
int realSize = mExpected;
Buffer temp = Buffer.Create(msgProtocolType);
temp.BeginWriting(false).Write(mReceiveBuffer.buffer, mOffset, realSize);
EnqueuePacker(temp);
temp = null;
available -= mExpected;
mOffset += realSize;
mExpected = 0;
}
else
{
break;
}
}
}
