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when executing Python scripts from the GUI, run in background thread and

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wait for them to enter the RUNTIME state
This commit is contained in:
ahrenholz 2014-04-03 21:58:05 +00:00
parent 2c2c9a082f
commit fef98f30c9
1 changed files with 17 additions and 5 deletions
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22
daemon/sbin/core-daemon
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@ -936,12 +936,12 @@ class CoreRequestHandler(SocketServer.BaseRequestHandler):
if os.path.splitext(filename)[1].lower() == '.xml':
session = server.getsession(useexisting=False)
opensessionxml(session, filename, start=True)
# TODO: Script may not return; run in separate thread here.
# Wait for some configurable timeout period, then check
# for new session below. Wait for session to enter
# the runtime state, then send back the register message.
else:
execfile(filename, {'server': server})
t = threading.Thread(target = execfile,
args=(filename, {'server': server}))
t.daemon = True
t.start()
time.sleep(0.25) # allow time for session creation
if msg.flags & coreapi.CORE_API_STR_FLAG:
new_session_ids = set(server.getsessionids())
new_sid = new_session_ids.difference(old_session_ids)
@ -951,6 +951,18 @@ class CoreRequestHandler(SocketServer.BaseRequestHandler):
except KeyError:
self.info("executed '%s' with unknown session ID" % ex)
return replies
self.info("checking session %d for RUNTIME state" % sid)
session = self.server.getsession(sessionid=sid, useexisting=True)
retries = 10
# wait for session to enter RUNTIME state, to prevent GUI from
# connecting while nodes are still being instantiated
while session.getstate() != coreapi.CORE_EVENT_RUNTIME_STATE:
self.info("waiting for session %d to enter RUNTIME state" % sid)
time.sleep(1)
retries -= 1
if retries <= 0:
self.info("session %d did not enter RUNTIME state" % sid)
return replies
tlvdata = coreapi.CoreRegTlv.pack( \
coreapi.CORE_TLV_REG_EXECSRV, ex)
tlvdata += coreapi.CoreRegTlv.pack( \