Always use recvmmsg or recvmsg if it's available, and consolidate ReadAndDispatchPackets and ReadAn…

net/tools/quic/quic_server.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 //
 // A toy server, which listens on a specified address for QUIC traffic and
 // handles incoming responses.
 //
 // Note that this server is intended to verify correctness of the client and is
 // in no way expected to be performant.
 
@@ skipping 95 matching lines @@
 
   // If overflow_supported_ is true this will be the number of packets dropped
   // during the lifetime of the server.  This may overflow if enough packets
   // are dropped.
   QuicPacketCount packets_dropped_;
 
   // True if the kernel supports SO_RXQ_OVFL, the number of packets dropped
   // because the socket would otherwise overflow.
   bool overflow_supported_;
 
-  // If true, use recvmmsg for reading.
-  bool use_recvmmsg_;
-
   // config_ contains non-crypto parameters that are negotiated in the crypto
   // handshake.
   QuicConfig config_;
   // crypto_config_ contains crypto parameters for the handshake.
   QuicCryptoServerConfig crypto_config_;
   // crypto_config_options_ contains crypto parameters for the handshake.
   QuicCryptoServerConfig::ConfigOptions crypto_config_options_;
 
   // This vector contains QUIC versions which we currently support.
   // This should be ordered such that the highest supported version is the first
   // element, with subsequent elements in descending order (versions can be
   // skipped as necessary).
   QuicVersionVector supported_versions_;
 
   // Point to a QuicPacketReader object on the heap. The reader allocates more
   // space than allowed on the stack.
   scoped_ptr<QuicPacketReader> packet_reader_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicServer);
 };
 
 }  // namespace net
 
 #endif  // NET_TOOLS_QUIC_QUIC_SERVER_H_