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Lock for controller or compute

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Julien Duponchelle 2016-04-14 12:15:45 +02:00
parent 2055cdea5e
commit 2841b5769e
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1 changed files with 13 additions and 6 deletions
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19
gns3server/web/route.py
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@ -242,16 +242,23 @@ class Route(object):
vm_id = request.match_info.get("vm_id")
if vm_id is None:
vm_id = request.match_info["device_id"]
cls._vm_locks.setdefault(vm_id, {"lock": asyncio.Lock(), "concurrency": 0})
cls._vm_locks[vm_id]["concurrency"] += 1
with (yield from cls._vm_locks[vm_id]["lock"]):
if "controller" in request.path:
type = "controller"
else:
type = "compute"
lock_key = "{}:{}:{}".format(type, request.match_info["project_id"], vm_id)
cls._vm_locks.setdefault(lock_key, {"lock": asyncio.Lock(), "concurrency": 0})
cls._vm_locks[lock_key]["concurrency"] += 1
with (yield from cls._vm_locks[lock_key]["lock"]):
response = yield from control_schema(request)
cls._vm_locks[vm_id]["concurrency"] -= 1
cls._vm_locks[lock_key]["concurrency"] -= 1
# No more waiting requests, garbage collect the lock
if cls._vm_locks[vm_id]["concurrency"] <= 0:
del cls._vm_locks[vm_id]
if cls._vm_locks[lock_key]["concurrency"] <= 0:
del cls._vm_locks[lock_key]
else:
response = yield from control_schema(request)
return response