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Remove redundant code for Dynamips hypervisor connections.

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This commit is contained in:
Jeremy
2015-03-05 18:00:17 -07:00
parent c012e8ddb3
commit 2bae814eb1
2 changed files with 17 additions and 44 deletions
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30
gns3server/modules/dynamips/dynamips_hypervisor.py
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@ -21,6 +21,7 @@ http://github.com/GNS3/dynamips/blob/master/README.hypervisor#L46
"""
import re
import time
import logging
import asyncio
@ -59,7 +60,7 @@ class DynamipsHypervisor:
self._writer = None
@asyncio.coroutine
def connect(self):
def connect(self, timeout=10):
"""
Connects to the hypervisor.
"""
@ -73,20 +74,23 @@ class DynamipsHypervisor:
else:
host = self._host
tries = 3
while tries > 0:
begin = time.time()
connection_success = False
last_exception = None
while time.time() - begin < timeout:
yield from asyncio.sleep(0.01)
try:
self._reader, self._writer = yield from asyncio.wait_for(asyncio.open_connection(host, self._port), timeout=self._timeout)
break
self._reader, self._writer = yield from asyncio.open_connection(host, self._port)
except OSError as e:
if tries:
tries -= 1
log.warn("Could not connect to hypervisor {}:{} {}, retrying...".format(host, self._port, e))
yield from asyncio.sleep(0.1)
continue
raise DynamipsError("Could not connect to hypervisor {}:{} {}".format(host, self._port, e))
except asyncio.TimeoutError:
raise DynamipsError("Timeout error while connecting to hypervisor {}:{}".format(host, self._port))
last_exception = e
continue
connection_success = True
break
if not connection_success:
raise DynamipsError("Couldn't connect to hypervisor on {}:{} :{}".format(host, self._port, last_exception))
else:
log.info("Connected to Dynamips hypervisor after {:.4f} seconds".format(time.time() - begin))
try:
version = yield from self.send("hypervisor version")