Cocoa Distributed Objects in Python

distobj-client.py

#!/usr/bin/python


import sys
import optparse
from Foundation import *


SRV_NAME = u"HelloServer"


def main(argv):
    p = optparse.OptionParser()
    p.set_usage("""Usage: %prog [options] name""")
    p.add_option("-v", "--verbose", action="store_true",
                 help="Verbose output.")
    options, argv = p.parse_args(argv)
    if len(argv) != 2:
        print >>sys.stderr, p.get_usage()
        return 1
    
    name = argv[1].decode("utf-8")
    
    srv_proxy = NSConnection.rootProxyForConnectionWithRegisteredName_host_(SRV_NAME, None)
    if not srv_proxy:
        sys.exit(u"Couldn't establish connection with '%s'" % SRV_NAME)
    
    print u"Server says: '%s'" % srv_proxy.hello(name)
    
    return 0
    

if __name__ == '__main__':
    sys.exit(main(sys.argv))
    

distobj-server.py

#!/usr/bin/python


import sys
import optparse
from Foundation import *


SRV_NAME = u"HelloServer"


class MyService(NSObject):
    
    keep_running = True
    
    def hello(self, name):
        if name == u"quit":
            self.keep_running = False
            return u"Quitting"
        else:
            print u"Client says: hello(%s)" % repr(name)
            return u"Hello, %s!" % name
    

def main(argv):
    p = optparse.OptionParser()
    p.set_usage("""Usage: %prog [options]""")
    p.add_option("-v", "--verbose", action="store_true",
                 help="Verbose output.")
    options, argv = p.parse_args(argv)
    if len(argv) != 1:
        print >>sys.stderr, p.get_usage()
        return 1
    
    conn = NSConnection.defaultConnection()
    
    myservice = MyService.alloc().init()
    
    conn.setRootObject_(myservice)
    
    if conn.registerName_(SRV_NAME) == False:
        sys.exit(u"Unable to register '%s'" % SRV_NAME)
    
    runloop = NSRunLoop.currentRunLoop()
    while myservice.keep_running and runloop.runMode_beforeDate_(NSDefaultRunLoopMode, NSDate.distantFuture()):
        pass
    
    return 0
    

if __name__ == '__main__':
    sys.exit(main(sys.argv))