Hi there.
As a followup of my previous message (problem using dbus rpc call with
argument in python) i decided to give rpc_async_run a try instead of
rpc_run.
Now, not only it 'does not work', but pyhton2.5 segfault as well.
I guess i did something wrong like not having an osso context properly
set or something like this, but i also feel it should be up to libosso
or python-osso to check the argument it use ar ok, shouldnt it ?
I have attached a test cased based on :
http://maemo.org/platform/docs/python-bora/python_maemo_howto.html#Introduction+to+LibOSSO
I also try to catch a backtrace, with 'gdb /usr/bin/python2.5 core' ,
but i m not that familiar with gdb, nor do i know where to get the
python-osso debug symbols.
Anyway, the begining of the backtrace looks like this:
#0 0xb72d068c in _python_to_rpc_t () from
/usr/lib/python2.5/site-packages/osso/rpc.so
#1 0xb72cfc61 in Context_rpc_run_with_defaults () from
/usr/lib/python2.5/site-packages/osso/rpc.so
#2 0xb79f09b9 in osso_rpc_run () from /usr/lib/libosso.so.1
Am i wrong in thinking there is something wrong in python-osso ?
I use python2.5-osso 0.2-1osso1.
_python_to_rpc_t is defined in python-osso/src/osso-helper.c, but this
is where i m stuck at, not understanding what may be wrong there (i
guess one of the 2 argument being sent has not the right type or size or
something, but that s about it).
Any help would be appreciated.
Pierre Amadio
Core was generated by `/usr/bin/python2.5 ./sender.py'.
Program terminated with signal 11, Segmentation fault.
#0 0xb72d068c in _python_to_rpc_t () from
/usr/lib/python2.5/site-packages/osso/rpc.so
(gdb) bt
#0 0xb72d068c in _python_to_rpc_t () from
/usr/lib/python2.5/site-packages/osso/rpc.so
#1 0xb72cfc61 in Context_rpc_run_with_defaults () from
/usr/lib/python2.5/site-packages/osso/rpc.so
#2 0xb79f09b9 in osso_rpc_run () from /usr/lib/libosso.so.1
#3 0xb79b8c3f in dbus_pending_call_get_data () from /usr/lib/libdbus-1.so.2
#4 0xb79a74d9 in dbus_connection_has_messages_to_send () from
/usr/lib/libdbus-1.so.2
#5 0xb79a9bf8 in dbus_connection_dispatch () from /usr/lib/libdbus-1.so.2
#6 0xb75d6f2d in dbus_g_message_get_message () from
/usr/lib/libdbus-glib-1.so.2
#7 0xb79408e7 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#8 0xb7942285 in g_main_context_acquire () from /usr/lib/libglib-2.0.so.0
#9 0xb79425aa in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#10 0xb774bb23 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
#11 0xb6f32d8b in init_gtkimpl () from
/usr/lib/python2.5/site-packages/gtk-2.0/gtk/_gtkimpl.so
#12 0xb7e973c8 in PyEval_EvalFrameEx () from /usr/lib/libpython2.5.so.1.0
#13 0xb7e98c40 in PyEval_EvalCodeEx () from /usr/lib/libpython2.5.so.1.0
#14 0xb7e98c9b in PyEval_EvalCode () from /usr/lib/libpython2.5.so.1.0
#15 0xb7eabfe0 in PyErr_Display () from /usr/lib/libpython2.5.so.1.0
#16 0xb7eac4be in PyRun_FileExFlags () from /usr/lib/libpython2.5.so.1.0
#17 0xb7eacec7 in PyRun_SimpleFileExFlags () from /usr/lib/libpython2.5.so.1.0
#18 0xb7ead5b3 in PyRun_AnyFileExFlags () from /usr/lib/libpython2.5.so.1.0
#19 0xb7eb4985 in Py_Main () from /usr/lib/libpython2.5.so.1.0
#20 0x0804856e in main ()
[D-BUS Service]
Name=spam.eggs.osso_test_receiver
Exec=/home/melmoth/dev/rapier/receive.py
#!/usr/bin/python2.5
import osso
import gtk
def callback_func(interface, method, arguments, user_data):
print "RPC received",user_data
print "arg=",arguments
#osso_c = user_data
#osso_sysnote = osso.SystemNote(osso_c)
#osso_sysnote.system_note_infoprint("osso_test_receiver: Received a RPC to %s." % method)
return "ok data has been processed"
osso_c = osso.Context("osso_test_receiver", "0.0.1", False)
print "osso_test_receiver started"
osso_rpc = osso.Rpc(osso_c)
osso_rpc.set_rpc_callback("spam.eggs.osso_test_receiver",
"/spam/eggs/osso_test_receiver",
"spam.eggs.osso_test_receiver", callback_func, 'plop')
gtk.main()
#!/usr/bin/python2.5
import osso
import hildon
import gtk
def process_rpc_answer(retval):
print "process_rpc_answer called:",retval
return True
def send_rpc(widget, osso_c):
"""
Cf http://www.maemo.org/platform/docs/pymaemo/pyosso_context.html#rpc_run_with_defaults
"""
osso_rpc = osso.Rpc(osso_c)
test=osso_rpc.rpc_async_run("spam.eggs.osso_test_receiver",
"/spam/eggs/osso_test_receiver",
"spam.eggs.osso_test_receiver",
"do_something",
process_rpc_answer,
'some user data',
('argA','argB')
)
print "test=,",test
print "RPC sent"
osso_c = osso.Context("osso_test_sender", "0.0.1", False)
window = hildon.Window()
window.connect("destroy", gtk.main_quit)
send_button = gtk.Button("Send RPC")
window.add(send_button)
send_button.connect("clicked", send_rpc, osso_c)
window.show_all()
gtk.main()
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