mirror of
https://github.com/GNS3/gns3-server
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72 lines
2.1 KiB
Python
72 lines
2.1 KiB
Python
# -*- coding: utf-8 -*-
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#
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# Copyright (C) 2015 GNS3 Technologies Inc.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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"""
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IOU server module.
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"""
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import os
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import asyncio
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from ..base_manager import BaseManager
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from .iou_error import IOUError
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from .iou_vm import IOUVM
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from .utils.application_id import get_next_application_id
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import logging
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log = logging.getLogger(__name__)
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class IOU(BaseManager):
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_NODE_CLASS = IOUVM
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_NODE_TYPE = "iou"
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def __init__(self):
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super().__init__()
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self._iou_id_lock = asyncio.Lock()
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@asyncio.coroutine
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def create_node(self, *args, **kwargs):
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"""
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Creates a new IOU VM.
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:returns: IOUVM instance
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"""
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with (yield from self._iou_id_lock):
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# wait for a node to be completely created before adding a new one
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# this is important otherwise we allocate the same application ID
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# when creating multiple IOU node at the same time
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application_id = get_next_application_id(self.nodes)
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node = yield from super().create_node(*args, application_id=application_id, **kwargs)
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return node
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@staticmethod
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def get_legacy_vm_workdir(legacy_vm_id, name):
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"""
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Returns the name of the legacy working directory (pre 1.3) name for a node.
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:param legacy_vm_id: legacy node identifier (integer)
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:param name: Node name (not used)
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:returns: working directory name
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"""
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return os.path.join("iou", "device-{}".format(legacy_vm_id))
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