From 22c29d8651668195f72e2f6a8e059d625eb511c3 Mon Sep 17 00:00:00 2001 From: Richard Purdie Date: Wed, 20 Jan 2010 18:46:02 +0000 Subject: bitbake: Switch to bitbake-dev version (bitbake master upstream) Signed-off-by: Richard Purdie --- bitbake/lib/bb/server/none.py | 181 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 181 insertions(+) create mode 100644 bitbake/lib/bb/server/none.py (limited to 'bitbake/lib/bb/server/none.py') diff --git a/bitbake/lib/bb/server/none.py b/bitbake/lib/bb/server/none.py new file mode 100644 index 0000000000..ebda111582 --- /dev/null +++ b/bitbake/lib/bb/server/none.py @@ -0,0 +1,181 @@ +# +# BitBake 'dummy' Passthrough Server +# +# Copyright (C) 2006 - 2007 Michael 'Mickey' Lauer +# Copyright (C) 2006 - 2008 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. + +""" + This module implements an xmlrpc server for BitBake. + + Use this by deriving a class from BitBakeXMLRPCServer and then adding + methods which you want to "export" via XMLRPC. If the methods have the + prefix xmlrpc_, then registering those function will happen automatically, + if not, you need to call register_function. + + Use register_idle_function() to add a function which the xmlrpc server + calls from within server_forever when no requests are pending. Make sure + that those functions are non-blocking or else you will introduce latency + in the server's main loop. +""" + +import time +import bb +from bb.ui import uievent +import xmlrpclib +import pickle + +DEBUG = False + +from SimpleXMLRPCServer import SimpleXMLRPCServer, SimpleXMLRPCRequestHandler +import inspect, select + +class BitBakeServerCommands(): + def __init__(self, server, cooker): + self.cooker = cooker + self.server = server + + def runCommand(self, command): + """ + Run a cooker command on the server + """ + #print "Running Command %s" % command + return self.cooker.command.runCommand(command) + + def terminateServer(self): + """ + Trigger the server to quit + """ + self.server.server_exit() + #print "Server (cooker) exitting" + return + + def ping(self): + """ + Dummy method which can be used to check the server is still alive + """ + return True + +eventQueue = [] + +class BBUIEventQueue: + class event: + def __init__(self, parent): + self.parent = parent + @staticmethod + def send(event): + bb.server.none.eventQueue.append(pickle.loads(event)) + @staticmethod + def quit(): + return + + def __init__(self, BBServer): + self.eventQueue = bb.server.none.eventQueue + self.BBServer = BBServer + self.EventHandle = bb.event.register_UIHhandler(self) + + def getEvent(self): + if len(self.eventQueue) == 0: + return None + + return self.eventQueue.pop(0) + + def waitEvent(self, delay): + event = self.getEvent() + if event: + return event + self.BBServer.idle_commands(delay) + return self.getEvent() + + def queue_event(self, event): + self.eventQueue.append(event) + + def system_quit( self ): + bb.event.unregister_UIHhandler(self.EventHandle) + +class BitBakeServer(): + # remove this when you're done with debugging + # allow_reuse_address = True + + def __init__(self, cooker): + self._idlefuns = {} + self.commands = BitBakeServerCommands(self, cooker) + + def register_idle_function(self, function, data): + """Register a function to be called while the server is idle""" + assert callable(function) + self._idlefuns[function] = data + + def idle_commands(self, delay): + #print "Idle queue length %s" % len(self._idlefuns) + #print "Idle timeout, running idle functions" + #if len(self._idlefuns) == 0: + nextsleep = delay + for function, data in self._idlefuns.items(): + try: + retval = function(self, data, False) + #print "Idle function returned %s" % (retval) + if retval is False: + del self._idlefuns[function] + elif retval is True: + nextsleep = None + elif nextsleep is None: + continue + elif retval < nextsleep: + nextsleep = retval + except SystemExit: + raise + except: + import traceback + traceback.print_exc() + pass + if nextsleep is not None: + #print "Sleeping for %s (%s)" % (nextsleep, delay) + time.sleep(nextsleep) + + def server_exit(self): + # Tell idle functions we're exiting + for function, data in self._idlefuns.items(): + try: + retval = function(self, data, True) + except: + pass + +class BitbakeServerInfo(): + def __init__(self, server): + self.server = server + self.commands = server.commands + +class BitBakeServerFork(): + def __init__(self, serverinfo, command, logfile): + serverinfo.forkCommand = command + serverinfo.logfile = logfile + +class BitBakeServerConnection(): + def __init__(self, serverinfo): + self.server = serverinfo.server + self.connection = serverinfo.commands + self.events = bb.server.none.BBUIEventQueue(self.server) + + def terminate(self): + try: + self.events.system_quit() + except: + pass + try: + self.connection.terminateServer() + except: + pass + -- cgit v1.2.3-54-g00ecf