Enable TCP_NODELAY by default (#36)

There are a lot of discussions about TCP_NODELAY on the Internet. I think that enabling TCP_NODELAY can reduce latency and increase throughput  in most scenarios.

Author: an-tao

trantor/net/inner/Acceptor.cc

@@ -27,9 +27,8 @@ Acceptor::Acceptor(EventLoop *loop,
 {
     _sock.setReuseAddr(reUseAddr);
     _sock.setReusePort(reUsePort);
-
     _sock.bindAddress(_addr);
-
+    _sock.setTcpNoDelay(true);
     _acceptChannel.setReadCallback(std::bind(&Acceptor::readCallback, this));
 }
 Acceptor::~Acceptor()

trantor/net/inner/TcpConnectionImpl.cc

@@ -47,6 +47,7 @@ TcpConnectionImpl::TcpConnectionImpl(EventLoop *loop,
     _ioChannelPtr->setErrorCallback(
         std::bind(&TcpConnectionImpl::handleError, this));
     _socketPtr->setKeepAlive(true);
+    _socketPtr->setTcpNoDelay(true);
     _name = localAddr.toIpPort() + "--" + peerAddr.toIpPort();
 }
 TcpConnectionImpl::~TcpConnectionImpl()