#!/usr/bin/env python

usage = """Usage:

python unix-fd-service.py <file name> &

python unix-fd-client.py

"""

# Copyright (C) 2004-2006 Red Hat Inc. <http://www.redhat.com/>

# Copyright (C) 2005-2007 Collabora Ltd. <http://www.collabora.co.uk/>

# Copyright (C) 2010 Signove <http://www.signove.com>

#

# Permission is hereby granted, free of charge, to any person

# obtaining a copy of this software and associated documentation

# files (the "Software"), to deal in the Software without

# restriction, including without limitation the rights to use, copy,

# modify, merge, publish, distribute, sublicense, and/or sell copies

# of the Software, and to permit persons to whom the Software is

# furnished to do so, subject to the following conditions:

#

# The above copyright notice and this permission notice shall be

# included in all copies or substantial portions of the Software.

#

# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,

# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND

# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT

# HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,

# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER

# DEALINGS IN THE SOFTWARE.

from gi.repository import GLib

import dbus

import dbus.service

import dbus.mainloop.glib

import sys

import random

class SomeObject(dbus.service.Object):

    counter = 0

    @dbus.service.method("com.example.SampleInterface",

                         in_signature='', out_signature='h')

    def GetFd(self):

        self.counter = (self.counter + 1) % 3

        if self.counter == 0:

            print "sending UnixFd(filelike)"

            return dbus.types.UnixFd(f)

        elif self.counter == 1:

            print "sending int"

            return f.fileno()

        else:

            print "sending UnixFd(int)"

            return dbus.types.UnixFd(f.fileno())

if len(sys.argv) < 2:

    print usage

    sys.exit(1)

f = file(sys.argv[1], "r")

if __name__ == '__main__':

    dbus.mainloop.glib.DBusGMainLoop(set_as_default=True)

    session_bus = dbus.SessionBus()

    name = dbus.service.BusName("com.example.SampleService", session_bus)

    object = SomeObject(session_bus, '/SomeObject')

    mainloop = GLib.MainLoop()

    print "Running fd service."

    print usage

    mainloop.run()