1 | #include <gio/gio.h> |
2 | |
3 | static gchar *opt_name = NULL; |
4 | static gchar *opt_object_path = NULL; |
5 | static gchar *opt_interface = NULL; |
6 | static gboolean opt_system_bus = FALSE; |
7 | static gboolean opt_no_auto_start = FALSE; |
8 | static gboolean opt_no_properties = FALSE; |
9 | |
10 | static GOptionEntry opt_entries[] = |
11 | { |
12 | { "name" , 'n', 0, G_OPTION_ARG_STRING, &opt_name, "Name of the remote object to watch" , NULL }, |
13 | { "object-path" , 'o', 0, G_OPTION_ARG_STRING, &opt_object_path, "Object path of the remote object" , NULL }, |
14 | { "interface" , 'i', 0, G_OPTION_ARG_STRING, &opt_interface, "D-Bus interface of remote object" , NULL }, |
15 | { "system-bus" , 's', 0, G_OPTION_ARG_NONE, &opt_system_bus, "Use the system-bus instead of the session-bus" , NULL }, |
16 | { "no-auto-start" , 'a', 0, G_OPTION_ARG_NONE, &opt_no_auto_start, "Don't instruct the bus to launch an owner for the name" , NULL}, |
17 | { "no-properties" , 'p', 0, G_OPTION_ARG_NONE, &opt_no_properties, "Do not load properties" , NULL}, |
18 | { NULL} |
19 | }; |
20 | |
21 | static GMainLoop *loop = NULL; |
22 | |
23 | static void |
24 | print_properties (GDBusProxy *proxy) |
25 | { |
26 | gchar **property_names; |
27 | guint n; |
28 | |
29 | g_print (format: " properties:\n" ); |
30 | |
31 | property_names = g_dbus_proxy_get_cached_property_names (proxy); |
32 | for (n = 0; property_names != NULL && property_names[n] != NULL; n++) |
33 | { |
34 | const gchar *key = property_names[n]; |
35 | GVariant *value; |
36 | gchar *value_str; |
37 | value = g_dbus_proxy_get_cached_property (proxy, property_name: key); |
38 | value_str = g_variant_print (value, TRUE); |
39 | g_print (format: " %s -> %s\n" , key, value_str); |
40 | g_variant_unref (value); |
41 | g_free (mem: value_str); |
42 | } |
43 | g_strfreev (str_array: property_names); |
44 | } |
45 | |
46 | static void |
47 | on_properties_changed (GDBusProxy *proxy, |
48 | GVariant *changed_properties, |
49 | const gchar* const *invalidated_properties, |
50 | gpointer user_data) |
51 | { |
52 | /* Note that we are guaranteed that changed_properties and |
53 | * invalidated_properties are never NULL |
54 | */ |
55 | |
56 | if (g_variant_n_children (value: changed_properties) > 0) |
57 | { |
58 | GVariantIter *iter; |
59 | const gchar *key; |
60 | GVariant *value; |
61 | |
62 | g_print (format: " *** Properties Changed:\n" ); |
63 | g_variant_get (value: changed_properties, |
64 | format_string: "a{sv}" , |
65 | &iter); |
66 | while (g_variant_iter_loop (iter, format_string: "{&sv}" , &key, &value)) |
67 | { |
68 | gchar *value_str; |
69 | value_str = g_variant_print (value, TRUE); |
70 | g_print (format: " %s -> %s\n" , key, value_str); |
71 | g_free (mem: value_str); |
72 | } |
73 | g_variant_iter_free (iter); |
74 | } |
75 | |
76 | if (g_strv_length (str_array: (GStrv) invalidated_properties) > 0) |
77 | { |
78 | guint n; |
79 | g_print (format: " *** Properties Invalidated:\n" ); |
80 | for (n = 0; invalidated_properties[n] != NULL; n++) |
81 | { |
82 | const gchar *key = invalidated_properties[n]; |
83 | g_print (format: " %s\n" , key); |
84 | } |
85 | } |
86 | } |
87 | |
88 | static void |
89 | on_signal (GDBusProxy *proxy, |
90 | gchar *sender_name, |
91 | gchar *signal_name, |
92 | GVariant *parameters, |
93 | gpointer user_data) |
94 | { |
95 | gchar *parameters_str; |
96 | |
97 | parameters_str = g_variant_print (value: parameters, TRUE); |
98 | g_print (format: " *** Received Signal: %s: %s\n" , |
99 | signal_name, |
100 | parameters_str); |
101 | g_free (mem: parameters_str); |
102 | } |
103 | |
104 | static void |
105 | print_proxy (GDBusProxy *proxy) |
106 | { |
107 | gchar *name_owner; |
108 | |
109 | name_owner = g_dbus_proxy_get_name_owner (proxy); |
110 | if (name_owner != NULL) |
111 | { |
112 | g_print (format: "+++ Proxy object points to remote object owned by %s\n" |
113 | " bus: %s\n" |
114 | " name: %s\n" |
115 | " object path: %s\n" |
116 | " interface: %s\n" , |
117 | name_owner, |
118 | opt_system_bus ? "System Bus" : "Session Bus" , |
119 | opt_name, |
120 | opt_object_path, |
121 | opt_interface); |
122 | print_properties (proxy); |
123 | } |
124 | else |
125 | { |
126 | g_print (format: "--- Proxy object is inert - there is no name owner for the name\n" |
127 | " bus: %s\n" |
128 | " name: %s\n" |
129 | " object path: %s\n" |
130 | " interface: %s\n" , |
131 | opt_system_bus ? "System Bus" : "Session Bus" , |
132 | opt_name, |
133 | opt_object_path, |
134 | opt_interface); |
135 | } |
136 | g_free (mem: name_owner); |
137 | } |
138 | |
139 | static void |
140 | on_name_owner_notify (GObject *object, |
141 | GParamSpec *pspec, |
142 | gpointer user_data) |
143 | { |
144 | GDBusProxy *proxy = G_DBUS_PROXY (object); |
145 | print_proxy (proxy); |
146 | } |
147 | |
148 | int |
149 | main (int argc, char *argv[]) |
150 | { |
151 | GOptionContext *opt_context; |
152 | GError *error; |
153 | GDBusProxyFlags flags; |
154 | GDBusProxy *proxy; |
155 | |
156 | loop = NULL; |
157 | proxy = NULL; |
158 | |
159 | opt_context = g_option_context_new (parameter_string: "g_bus_watch_proxy() example" ); |
160 | g_option_context_set_summary (context: opt_context, |
161 | summary: "Example: to watch the object of gdbus-example-server, use:\n" |
162 | "\n" |
163 | " ./gdbus-example-watch-proxy -n org.gtk.GDBus.TestServer \\\n" |
164 | " -o /org/gtk/GDBus/TestObject \\\n" |
165 | " -i org.gtk.GDBus.TestInterface" ); |
166 | g_option_context_add_main_entries (context: opt_context, entries: opt_entries, NULL); |
167 | error = NULL; |
168 | if (!g_option_context_parse (context: opt_context, argc: &argc, argv: &argv, error: &error)) |
169 | { |
170 | g_printerr (format: "Error parsing options: %s\n" , error->message); |
171 | goto out; |
172 | } |
173 | if (opt_name == NULL || opt_object_path == NULL || opt_interface == NULL) |
174 | { |
175 | g_printerr (format: "Incorrect usage, try --help.\n" ); |
176 | goto out; |
177 | } |
178 | |
179 | flags = G_DBUS_PROXY_FLAGS_NONE; |
180 | if (opt_no_properties) |
181 | flags |= G_DBUS_PROXY_FLAGS_DO_NOT_LOAD_PROPERTIES; |
182 | if (opt_no_auto_start) |
183 | flags |= G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START; |
184 | |
185 | loop = g_main_loop_new (NULL, FALSE); |
186 | |
187 | error = NULL; |
188 | proxy = g_dbus_proxy_new_for_bus_sync (bus_type: opt_system_bus ? G_BUS_TYPE_SYSTEM : G_BUS_TYPE_SESSION, |
189 | flags, |
190 | NULL, /* GDBusInterfaceInfo */ |
191 | name: opt_name, |
192 | object_path: opt_object_path, |
193 | interface_name: opt_interface, |
194 | NULL, /* GCancellable */ |
195 | error: &error); |
196 | if (proxy == NULL) |
197 | { |
198 | g_printerr (format: "Error creating proxy: %s\n" , error->message); |
199 | g_error_free (error); |
200 | goto out; |
201 | } |
202 | |
203 | g_signal_connect (proxy, |
204 | "g-properties-changed" , |
205 | G_CALLBACK (on_properties_changed), |
206 | NULL); |
207 | g_signal_connect (proxy, |
208 | "g-signal" , |
209 | G_CALLBACK (on_signal), |
210 | NULL); |
211 | g_signal_connect (proxy, |
212 | "notify::g-name-owner" , |
213 | G_CALLBACK (on_name_owner_notify), |
214 | NULL); |
215 | print_proxy (proxy); |
216 | |
217 | g_main_loop_run (loop); |
218 | |
219 | out: |
220 | if (proxy != NULL) |
221 | g_object_unref (object: proxy); |
222 | if (loop != NULL) |
223 | g_main_loop_unref (loop); |
224 | g_option_context_free (context: opt_context); |
225 | g_free (mem: opt_name); |
226 | g_free (mem: opt_object_path); |
227 | g_free (mem: opt_interface); |
228 | |
229 | return 0; |
230 | } |
231 | |