[dts] [PATCH] framework: support create addtional sessions on crb

[Tu, LijuanX A]

Hi yong,
	
	There are no logs when sending cmds. I hope see logs as master session.

> -----Original Message-----
> From: dts [mailto:dts-bounces at dpdk.org] On Behalf Of Yong Liu
> Sent: Tuesday, December 01, 2015 4:52 PM
> To: dts at dpdk.org
> Subject: [dts] [PATCH] framework: support create addtional sessions on
> crb
> 
> Add session create/destroy functions in crb module.
> Suite can create addtional session in dut by this function.
> When session useless, suite should close the session definitely.
> Below is sample code addtional session:
> 
>     session = self.dut.new_session()
>     session.send_expect("ls -al", "# ")
>     self.dut.close_session(session=session)
> 
> Signed-off-by: Marvin Liu <yong.liu at intel.com>
> 
> diff --git a/framework/crb.py b/framework/crb.py index 3c158ec..68fe399
> 100644
> --- a/framework/crb.py
> +++ b/framework/crb.py
> @@ -56,6 +56,7 @@ class Crb(object):
>          self.skip_setup = False
>          self.serializer = serializer
>          self.ports_info = None
> +        self.sessions = []
> 
>          self.logger = getLogger(name)
>          self.session = SSHConnection(self.get_ip_address(), name, @@ -
> 81,6 +82,24 @@ class Crb(object):
> 
>          return self.session.send_expect(cmds, expected, timeout,
> verify)
> 
> +    def create_session(self, name=""):
> +        """
> +        Create new session for addtional useage. This session will not
> enable log.
> +        """
> +        session = SSHConnection(self.get_ip_address(), name,
> +                                     self.get_password())
> +        self.sessions.append(session)
> +        return session.session
> +
> +    def destroy_session(self, session=None):
> +        """
> +        Destroy addtional session.
> +        """
> +        for save_session in self.sessions:
> +            if save_session.session == session:
> +                save_session.close()
> +            self.sessions.remove(save_session)
> +
>      def send_command(self, cmds, timeout=TIMEOUT, alt_session=False):
>          """
>          Send commands to crb and return string before timeout.
> diff --git a/framework/dut.py b/framework/dut.py index c75f325..2cea7fb
> 100644
> --- a/framework/dut.py
> +++ b/framework/dut.py
> @@ -41,6 +41,7 @@ from crb import Crb
>  from net_device import NetDevice
>  from virt_resource import VirtResource
>  from utils import RED
> +from uuid import uuid4
> 
> 
>  class Dut(Crb):
> @@ -85,6 +86,21 @@ class Dut(Crb):
>              self.host_session.init_log(self.logger)
>              self.host_init_flag = True
> 
> +    def new_session(self):
> +        """
> +        Create new session for dut instance. Session name will be
> unique.
> +        """
> +        session_name = str(uuid4())
> +        session = self.create_session(name=session_name)
> +        session.send_expect("cd %s" % self.base_dir, "# ")
> +        return session
> +
> +    def close_session(self, session):
> +        """
> +        close new session in dut instance
> +        """
> +        self.destroy_session(session)
> +
>      def change_config_option(self, target, parameter, value):
>          """
>          This function change option in the config file
> --
> 1.9.3