dear dan,
First, thank you very much for helpping me to break a way with Network Manager
0.7.0.
Your points help me a lot and the best is I will never feel alone and helpless.
Today I met a problem on DHClient.
(1) The log is like "localhost dhclient: Can't create
/usr/local/var/run/dhclient-wlan0.pid: Permission denied".
I downloaded dhclient-3.0.6 src code but still did not find how to change
"path_dhclient_db". Maybe it is not printed from dhclient.c.
I still have some questions about NM.
(2) Can I interpret the relationship between NM and applet like the following
diagram?
|------------- src
--------------| |- libnm -|
NIC_Driver<->wpa_supplicant<->NetworkManager <-> NMManager <->
NMClient <-> Applet
(iwctrl) (dbus) [NM
database] (dbus sig) [NMA database]
(3) I could not find the place applet emits a signal "DeviceAdded", so how does
applet create a NMClient?
(4) I will be so glad to know the calling history about "the wireless device
has scanned a new network/ap".
I means how NM informs Applet to add a new network.
(5) Also I would like to know the calling history about "user select an ap to
associate".
I means how Applet informs NM to perform joining things.
(6) Last question :Connection is for a device or an ap?
Sorry to have bothered you so much. I feel a little lazy and guilty, but still
waiting for your good news.
sincerely,
Jeanne
> Subject: Re: Questions on NetworkManager-0.7.0> From: [EMAIL PROTECTED]> To:
> [EMAIL PROTECTED]> CC: [email protected]> Date: Tue, 25 Mar 2008
> 10:45:23 -0400> > On Tue, 2008-03-25 at 03:11 +0000, Jue Yang wrote:> > Hi,>
> > > > > > > > I’m a fresh to develop Network Manager based on version 0.7.0.
> I have> > digged it few days and feel so confused. Could anybody give me the>
> > answers to following questions. > > > > 1. Why does NM separate to two
> layers, libnm and src?> > libnm-glib is only used by _client_ of
> NetworkManager, and wraps the> D-Bus objects that NetworkManager exports in a
> glib friendly API.> > libnm-util is common code and structures used both by
> clients of> NetworkManager and NetworkManager itself.> > > 2. How to do
> initialization of all objects? I mean who calls> > those “class_init”
> functions. > > This is handled by glib. When you call g_object_new(<type>,
> ...) glib> looks up the type that you have given it (which is registered
> indirectly> by those lines in the header files like #define NM_TYPE_FOO>
> (nm_foo_get_type ())).> > Once it's got the class structure identified by the
> type you have given> it with g_object_new(), glib will call the class_init
> and constructor> functions of the class and it's subclasses as necessary.> >
> For more information on glib objects, see:> >
> http://library.gnome.org/devel/gobject/unstable/chapter-gobject.html> > > 3.
> Can Applet just call functions in libnm? During Applet> > setting an active
> network, which way used to keep synchronizing> > between libnm and src?> >
> Yes, the applet can call libnm-glib functions, provided it has created> the
> right objects. You must first create the libnm-glib NMClient> object, which
> effectively wraps the D-Bus interface exported by the> NMManager object in
> src/. Once the applet has the NMClient object, it> can attach to the signals
> of NMClient, ask NMClient for the list of> devices, the list of currently
> active connections, etc.> > Most of the synchronization between a client an
> NetworkManager (aided by> libnm-glib for glib-based applications) is through
> signals. The> NMClient object proxies the PropertiesChanged signal that
> NetowrkManager> emits when the NMManager state changes, and it decodes the
> signal and> re-emits the signal as a GObject signal on the NMClient object.
> There's> actually some magic underneath to extract the properties that have>
> actually changed (there can be more than one at a time) from the>
> PropertiesChanged signal over D-Bus, and then set the internal cached>
> variables inside the NMClient object, and when those internal cached>
> variables change, emit GObject notify signals to alert users of> libnm-glib
> that something has changed.> > It's sort of complicated; but as a client of
> NetworkManager you just> need to pick one of (1) the D-Bus interface, or (2)
> the libnm-glib> interface, or (3) the KDE Solid interface when it's done. (2)
> and (3)> just wrap the D-Bus interface (1) in a more friendly manner and do>
> things like convert D-Bus types to glib/qt types (a{sv} -> GHashTable> for
> example).> > Dan> >
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