old_contents: # Copyright (C) 2011 Victor Semionov
  # All rights reserved.
  # 
  # Redistribution and use in source and binary forms, with or without
  # modification, are permitted provided that the following conditions are met:
  #  * Redistributions of source code must retain the above copyright notice, this
  #    list of conditions and the following disclaimer.
  #  * Redistributions in binary form must reproduce the above copyright notice,
  #    this list of conditions and the following disclaimer in the documentation
  #    and/or other materials provided with the distribution.
  #  * Neither the name of the copyright holder nor the names of the contributors
  #    may be used to endorse or promote products derived from this software
  #    without specific prior written permission.
  # 
  # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
  # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  # DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  # SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  # CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  # OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  
  
  import logging
  
  import net
  
  
  logger = logging.getLogger(__name__)
  
  
  def _session(sock):
      with net.get_sio(sock) as sio:
          try:
              while True:
                  command = net.read_line(sio)
          except Exception as ex:
              logger.error(ex)
  
  def process_session(sock, addr):
      with sock:
          host, port = addr
          logger.info("session started from address %s:%d", host, port)
          try:
              _session(sock)
          finally:
              logger.info("session ended")
  
new_contents: # Copyright (C) 2011 Victor Semionov
  # All rights reserved.
  # 
  # Redistribution and use in source and binary forms, with or without
  # modification, are permitted provided that the following conditions are met:
  #  * Redistributions of source code must retain the above copyright notice, this
  #    list of conditions and the following disclaimer.
  #  * Redistributions in binary form must reproduce the above copyright notice,
  #    this list of conditions and the following disclaimer in the documentation
  #    and/or other materials provided with the distribution.
  #  * Neither the name of the copyright holder nor the names of the contributors
  #    may be used to endorse or promote products derived from this software
  #    without specific prior written permission.
  # 
  # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
  # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  # DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  # SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  # CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  # OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  
  
  import logging
  
  import net
  
  
  logger = logging.getLogger(__name__)
  
  
  def _session(sock):
      with net.get_sio(sock) as sio:
          try:
              while True:
                  try:
                      command = net.read_line(sio)
                  except (IOError, EOFError, UnicodeDecodeError, BufferError) as ex:
                      logger.error(ex)
                      break
          except Exception as ex:
              logger.exception(ex)
  
  def process_session(sock, addr):
      with sock:
          host, port = addr
          logger.info("session started from address %s:%d", host, port)
          try:
              _session(sock)
          finally:
              logger.info("session ended")
  
subject: Handle known exceptions.