tcpsockbuf & csdbg::tcpsockbuf::open ( )

virtual

Connect the socket to its peer.

Returns

*this

Exceptions

csdbg::exception

Note

If the socket is already connected, it is closed and re-connected to the new address/port

Implements csdbg::streambuf.

Definition at line 170 of file tcpsockbuf.cpp.

References csdbg::streambuf::close(), m_address, csdbg::streambuf::m_handle, m_port, csdbg::util::memset(), and unlikely.

{
  if ( unlikely(m_handle >= 0) )
    close();

  /* Create the stream socket */
  m_handle = socket(AF_INET, SOCK_STREAM, 0);
  if ( unlikely(m_handle < 0) )
    throw exception(
      "failed to create stream socket (errno %d - %s)",
      errno,
      strerror(errno)
    );

  tcp_addr_t addr;
  util::memset(&addr, 0, sizeof(tcp_addr_t));
  addr.sin_family = AF_INET;
  addr.sin_port = htons(m_port);
  addr.sin_addr.s_addr = inet_addr(m_address);

  /* Connect the socket to its peer */
  ip_addr_t *ip = reinterpret_cast<ip_addr_t*> (&addr);
  i32 retval;
  do {
    retval = connect(m_handle, ip, sizeof(tcp_addr_t));
  }
  while ( unlikely(retval < 0 && errno == EINTR) );

  if ( unlikely(retval < 0) ) {
    close();
    throw exception(
      "failed to connect TCP/IP socket @ %s:%d (errno %d - %s)",
      m_address,
      m_port,
      errno,
      strerror(errno)
    );
  }

  return *this;
}

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