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shared: add nm_dbus_connection_signal_subscribe_name_owner_changed() helper

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... and nm_dbus_connection_call_get_name_owner().

We are going to use GDBusConnection more instead of GDBusProxy. Hence,
these two functions are the standard repertoire and used over and over.

Their arguments are complicated enough to warrant a small helper.
This commit is contained in:
Thomas Haller 2019-05-04 11:21:23 +02:00
parent 655e6bb1e3
commit 8ffa75685e
2 changed files with 80 additions and 0 deletions
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45
shared/nm-glib-aux/nm-dbus-aux.c
View file

@ -22,3 +22,48 @@
#include "nm-dbus-aux.h"
/*****************************************************************************/
static void
_nm_dbus_connection_call_get_name_owner_cb (GObject *source,
GAsyncResult *res,
gpointer user_data)
{
gs_unref_variant GVariant *ret = NULL;
gs_free_error GError *error = NULL;
const char *owner = NULL;
gpointer orig_user_data;
NMDBusConnectionCallGetNameOwnerCb callback;
nm_utils_user_data_unpack (user_data, &orig_user_data, &callback);
ret = g_dbus_connection_call_finish (G_DBUS_CONNECTION (source), res, &error);
if (ret)
g_variant_get (ret, "(&s)", &owner);
callback (owner, error, orig_user_data);
}
void
nm_dbus_connection_call_get_name_owner (GDBusConnection *dbus_connection,
const char *service_name,
int timeout_msec,
GCancellable *cancellable,
NMDBusConnectionCallGetNameOwnerCb callback,
gpointer user_data)
{
nm_assert (callback);
g_dbus_connection_call (dbus_connection,
DBUS_SERVICE_DBUS,
DBUS_PATH_DBUS,
DBUS_INTERFACE_DBUS,
"GetNameOwner",
g_variant_new ("(s)", service_name),
G_VARIANT_TYPE ("(s)"),
G_DBUS_CALL_FLAGS_NONE,
timeout_msec,
cancellable,
_nm_dbus_connection_call_get_name_owner_cb,
nm_utils_user_data_pack (user_data, callback));
}

35
shared/nm-glib-aux/nm-dbus-aux.h
View file

@ -21,6 +21,41 @@
#ifndef __NM_DBUS_AUX_H__
#define __NM_DBUS_AUX_H__
#include "nm-std-aux/nm-dbus-compat.h"
/*****************************************************************************/
static inline guint
nm_dbus_connection_signal_subscribe_name_owner_changed (GDBusConnection *dbus_connection,
const char *service_name,
GDBusSignalCallback callback,
gpointer user_data,
GDestroyNotify user_data_free_func)
{
return g_dbus_connection_signal_subscribe (dbus_connection,
DBUS_SERVICE_DBUS,
DBUS_INTERFACE_DBUS,
"NameOwnerChanged",
DBUS_PATH_DBUS,
service_name,
G_DBUS_SIGNAL_FLAGS_NONE,
callback,
user_data,
user_data_free_func);
}
typedef void (*NMDBusConnectionCallGetNameOwnerCb) (const char *name_owner,
GError *error,
gpointer user_data);
void nm_dbus_connection_call_get_name_owner (GDBusConnection *dbus_connection,
const char *service_name,
int timeout_msec,
GCancellable *cancellable,
NMDBusConnectionCallGetNameOwnerCb callback,
gpointer user_data);
/*****************************************************************************/
#endif /* __NM_DBUS_AUX_H__ */