Hello everyone,
I made a small python module to command NetworkManager and get some signals
from it.
My script works well alone, but when I launch it from my C/C++ program it
crashes at a certain function (here iface.GetDevices). Here is the function
that crashes and next my gdb print
*def get_device_path_by_type(type):*
* proxy = bus.get_object('org.freedesktop.NetworkManager',
'/org/freedesktop/NetworkManager')*
* iface = dbus.Interface(proxy,
dbus_interface='org.freedesktop.NetworkManager')*
* print "iface : %s" % iface *
* for d in iface.GetDevices():*
* print "--> after getdevices"*
* proxy = bus.get_object('org.freedesktop.NetworkManager', d)*
* iface = dbus.Interface(proxy,
dbus_interface='org.freedesktop.DBus.Properties')*
* devtype = iface.Get('org.freedesktop.NetworkManager.Device',
'DeviceType')*
* print "type : %d" % devtype*
* if devtype == type:*
* print "%s" % d*
* return d*
* print "return none"*
* return None*
*- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - *
*
iface : <Interface <ProxyObject wrapping <dbus._dbus.SystemBus (system) at
0x3fae0d20> :1.0 /org/freedesktop/NetworkManager at 0x3fae2710> implementing
'org.freedesktop.NetworkManager' at 0x3fae27d0>
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x4035a460 (LWP 2214)]
0x3b8af144 in sem_post@@GLIBC_2.4 () from /lib/libpthread.so.0
(gdb) bt
#0 0x3b8af144 in sem_post@@GLIBC_2.4 () from /lib/libpthread.so.0
#1 0x3b2ca9b4 in PyThread_release_lock () from /usr/lib/libpython2.6.so.1.0
#2 0x3b2987c4 in PyEval_ReleaseLock () from /usr/lib/libpython2.6.so.1.0
#3 0x3b2bd518 in PyThreadState_DeleteCurrent ()
from /usr/lib/libpython2.6.so.1.0
#4 0x3f9bce50 in ?? () from /usr/lib/pyshared/python2.6/_dbus_bindings.so
Just so you know I use other function from that script that works well with
my C/C++ application. Do you have any idea of why there would be a threading
problem ? And why a seg fault ?
Thank you for your inputs
Regards
Maxime
*
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