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Improve server/modules termination and how to wait for an hypervisor.

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connection.
System to avoid duplicated name for nodes.
Reload and idle-pc support for Dynamips routers.
Hypervisor allocation for other Dynamips devices.
This commit is contained in:
grossmj
2014-02-20 17:39:03 -07:00
parent df798f4bea
commit 72d303069c
16 changed files with 257 additions and 56 deletions
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39
gns3server/modules/dynamips/nodes/router.py
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@ -22,6 +22,7 @@ http://github.com/GNS3/dynamips/blob/master/README.hypervisor#L77
from __future__ import unicode_literals
from ..dynamips_error import DynamipsError
import time
import sys
import os
@ -39,6 +40,7 @@ class Router(object):
:param ghost_flag: used when creating a ghost IOS.
"""
_allocated_names = []
_instance_count = 1
_status = {0: "inactive",
1: "shutting down",
@ -53,8 +55,15 @@ class Router(object):
# let's create a unique name if none has been chosen
if not name:
name = "R" + str(self._id)
name_id = self._id
while True:
name = "R" + str(name_id)
# check if the name has already been allocated to another router
if name not in self._allocated_names:
break
name_id += 1
self._allocated_names.append(name)
self._hypervisor = hypervisor
self._name = '"' + name + '"' # put name into quotes to protect spaces
self._platform = platform
@ -106,10 +115,11 @@ class Router(object):
@classmethod
def reset(cls):
"""
Reset the instance count.
Resets the instance count and the allocated names list.
"""
cls._instance_count = 1
cls._allocated_names.clear()
def defaults(self):
"""
@ -179,6 +189,10 @@ class Router(object):
:param new_name: new name string
"""
if new_name in self._allocated_names:
raise DynamipsError('Name "{}" is already used by another router'.format(new_name))
new_name_no_quotes = new_name
new_name = '"' + new_name + '"' # put the new name into quotes to protect spaces
self._hypervisor.send("vm rename {name} {new_name}".format(name=self._name,
new_name=new_name))
@ -187,7 +201,9 @@ class Router(object):
id=self._id,
new_name=new_name))
self._allocated_names.remove(self.name)
self._name = new_name
self._allocated_names.append(new_name_no_quotes)
@property
def platform(self):
@ -237,6 +253,7 @@ class Router(object):
self._hypervisor.devices.remove(self)
log.info("router {name} [id={id}] has been deleted".format(name=self._name, id=self._id))
self._allocated_names.remove(self.name)
def start(self):
"""
@ -457,7 +474,7 @@ class Router(object):
old_ram=self._ram,
new_ram=ram))
self._hypervisor.decrease_memory_load(self._ram)
self._hypervisor.decrease_memory_load(ram)
self._ram = ram
self._hypervisor.increase_memory_load(self._ram)
@ -627,7 +644,17 @@ class Router(object):
:returns: list of idle PC proposal
"""
return self._hypervisor.send("vm get_idle_pc_prop {} 0".format(self._name))
if not self.is_running():
# router is not running
raise DynamipsError("router {name} is not running".format(name=self._name))
log.info("router {name} [id={id}] has started calculating idle-pc values".format(name=self._name, id=self._id))
begin = time.time()
idlepcs = self._hypervisor.send("vm get_idle_pc_prop {} 0".format(self._name))
log.info("router {name} [id={id}] has finished calculating idle-pc values after {time:.4f} seconds".format(name=self._name,
id=self._id,
time=time.time() - begin))
return idlepcs
def show_idle_pc_prop(self):
"""
@ -636,6 +663,10 @@ class Router(object):
:returns: list of idle PC proposal
"""
if not self.is_running():
# router is not running
raise DynamipsError("router {name} is not running".format(name=self._name))
return self._hypervisor.send("vm show_idle_pc_prop {} 0".format(self._name))
@property