mirror of
https://git.yoctoproject.org/poky
synced 2026-02-07 09:16:36 +01:00
506b5bd729
The registration of a remote UI event handler may fail if the server cooker is currently in some certain states. This may happen, for example, when a remote UI is started very fast after the bitbake server is started, and the server hadn't time to finish initial configuration parsing. Rather than fail outright, we have the remote UI event retry registration for five time at one-second intervals, in the hope it will succeed. (Bitbake rev: c3d520c92ae4ae80d31926a416456df510654b6a) Signed-off-by: Alexandru DAMIAN <alexandru.damian@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
151 lines
4.6 KiB
Python
151 lines
4.6 KiB
Python
# ex:ts=4:sw=4:sts=4:et
|
|
# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
|
|
#
|
|
# Copyright (C) 2006 - 2007 Michael 'Mickey' Lauer
|
|
# Copyright (C) 2006 - 2007 Richard Purdie
|
|
#
|
|
# This program is free software; you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License version 2 as
|
|
# published by the Free Software Foundation.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License along
|
|
# with this program; if not, write to the Free Software Foundation, Inc.,
|
|
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
|
|
|
|
"""
|
|
Use this class to fork off a thread to recieve event callbacks from the bitbake
|
|
server and queue them for the UI to process. This process must be used to avoid
|
|
client/server deadlocks.
|
|
"""
|
|
|
|
import socket, threading, pickle
|
|
from SimpleXMLRPCServer import SimpleXMLRPCServer, SimpleXMLRPCRequestHandler
|
|
|
|
class BBUIEventQueue:
|
|
def __init__(self, BBServer, clientinfo=("localhost, 0")):
|
|
|
|
self.eventQueue = []
|
|
self.eventQueueLock = threading.Lock()
|
|
self.eventQueueNotify = threading.Event()
|
|
|
|
self.BBServer = BBServer
|
|
self.clientinfo = clientinfo
|
|
|
|
server = UIXMLRPCServer(self.clientinfo)
|
|
self.host, self.port = server.socket.getsockname()
|
|
|
|
server.register_function( self.system_quit, "event.quit" )
|
|
server.register_function( self.send_event, "event.sendpickle" )
|
|
server.socket.settimeout(1)
|
|
|
|
self.EventHandler = None
|
|
count_tries = 0
|
|
|
|
# the event handler registration may fail here due to cooker being in invalid state
|
|
# this is a transient situation, and we should retry a couple of times before
|
|
# giving up
|
|
|
|
while self.EventHandler == None and count_tries < 5:
|
|
self.EventHandle = self.BBServer.registerEventHandler(self.host, self.port)
|
|
|
|
if (self.EventHandle != None):
|
|
break
|
|
|
|
bb.warn("Could not register UI event handler %s:%d, retry" % (self.host, self.port))
|
|
count_tries += 1
|
|
import time
|
|
time.sleep(1)
|
|
|
|
|
|
if self.EventHandle == None:
|
|
raise Exception("Could not register UI event handler")
|
|
|
|
self.server = server
|
|
|
|
self.t = threading.Thread()
|
|
self.t.setDaemon(True)
|
|
self.t.run = self.startCallbackHandler
|
|
self.t.start()
|
|
|
|
def getEvent(self):
|
|
|
|
self.eventQueueLock.acquire()
|
|
|
|
if len(self.eventQueue) == 0:
|
|
self.eventQueueLock.release()
|
|
return None
|
|
|
|
item = self.eventQueue.pop(0)
|
|
|
|
if len(self.eventQueue) == 0:
|
|
self.eventQueueNotify.clear()
|
|
|
|
self.eventQueueLock.release()
|
|
return item
|
|
|
|
def waitEvent(self, delay):
|
|
self.eventQueueNotify.wait(delay)
|
|
return self.getEvent()
|
|
|
|
def queue_event(self, event):
|
|
self.eventQueueLock.acquire()
|
|
self.eventQueue.append(event)
|
|
self.eventQueueNotify.set()
|
|
self.eventQueueLock.release()
|
|
|
|
def send_event(self, event):
|
|
self.queue_event(pickle.loads(event))
|
|
|
|
def startCallbackHandler(self):
|
|
|
|
self.server.timeout = 1
|
|
while not self.server.quit:
|
|
self.server.handle_request()
|
|
self.server.server_close()
|
|
|
|
def system_quit( self ):
|
|
"""
|
|
Shut down the callback thread
|
|
"""
|
|
try:
|
|
self.BBServer.unregisterEventHandler(self.EventHandle)
|
|
except:
|
|
pass
|
|
self.server.quit = True
|
|
|
|
class UIXMLRPCServer (SimpleXMLRPCServer):
|
|
|
|
def __init__( self, interface ):
|
|
self.quit = False
|
|
SimpleXMLRPCServer.__init__( self,
|
|
interface,
|
|
requestHandler=SimpleXMLRPCRequestHandler,
|
|
logRequests=False, allow_none=True)
|
|
|
|
def get_request(self):
|
|
while not self.quit:
|
|
try:
|
|
sock, addr = self.socket.accept()
|
|
sock.settimeout(1)
|
|
return (sock, addr)
|
|
except socket.timeout:
|
|
pass
|
|
return (None, None)
|
|
|
|
def close_request(self, request):
|
|
if request is None:
|
|
return
|
|
SimpleXMLRPCServer.close_request(self, request)
|
|
|
|
def process_request(self, request, client_address):
|
|
if request is None:
|
|
return
|
|
SimpleXMLRPCServer.process_request(self, request, client_address)
|
|
|