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from imc import async
from imc.auth import Auth
class LockServer:
def __init__(self,proxy,idendesc):
self._proxy = proxy
self._idendesc = idendesc
self.client_linkmap = set()
self._proxy.register_call('lockserver/','connect_client',
self.connect_client)
self._proxy.register_call('lockserver/','write_lock',
self.write_lock)
self._proxy.register_call('lockserver/','write_unlock',
self.write_unlock)
LockServer.instance = self
@async.caller
def connect_client(self):
link = Auth.get_current_iden()['link']
self.client_linkmap.add(link)
@async.caller
def write_lock(self,lockname):
def _send(link):
def __cb(result):
nonlocal count
stat,ret = result
if stat == False and ret == 'Enoexist':
self.client_linkmap.pop(link,None)
count -= 1
if count == 0:
async.ret(retid)
self._proxy.call_async(link + 'lockclient/',
'sync_write_lock',
3600000,
__cb,
lockname)
with Auth.change_current_iden(self._idendesc):
links = list(self.client_linkmap)
count = len(links)
retid = async.get_retid()
for link in links:
_send(link)
async.switch_top()
@async.caller
def write_unlock(self,lockname):
def _cb(result):
stat,ret = result
if stat == False and ret == 'Enoexist':
self.client_linkmap.pop(link,None)
with Auth.change_current_iden(self._idendesc):
links = list(self.client_linkmap)
for link in links:
self._proxy.call_async(link + 'lockclient/',
'sync_write_unlock',
10000,
_cb,
lockname)
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