vio.h

/* Copyright (C) 2000 MySQL AB

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; version 2 of the License.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA */


#pragma once

#include <sys/socket.h>
#include <cerrno>

namespace drizzle_plugin {

class Vio
{
public:
  Vio(int sd);
  ~Vio();

  int close();

  size_t read(unsigned char* buf, size_t size);
  
  size_t write(const unsigned char* buf, size_t size);

  int blocking(bool set_blocking_mode, bool *old_mode);

  int fastsend();

  int32_t keepalive(bool set_keep_alive);

  bool should_retry() const;

  bool was_interrupted() const;

  bool peer_addr(char *buf, size_t buflen, uint16_t& port) const;

  void timeout(bool is_sndtimeo, int32_t timeout);

  int get_errno() const;

  int get_fd() const;

private:
  int sd;
  int fcntl_mode; /* Buffered fcntl(sd,F_GETFL) */
};

} /* namespace drizzle_plugin */