glib/gio/tests/gdbus-example-subtree.c

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#include <gio/gio.h>
#include <stdlib.h>
#include <string.h>
/* ---------------------------------------------------------------------------------------------------- */
static GDBusNodeInfo *introspection_data = NULL;
static GDBusInterfaceInfo *manager_interface_info = NULL;
static GDBusInterfaceInfo *block_interface_info = NULL;
static GDBusInterfaceInfo *partition_interface_info = NULL;
/* Introspection data for the service we are exporting */
static const gchar introspection_xml[] =
"<node>"
" <interface name='org.gtk.GDBus.Example.Manager'>"
" <method name='Hello'>"
" <arg type='s' name='greeting' direction='in'/>"
" <arg type='s' name='response' direction='out'/>"
" </method>"
" </interface>"
" <interface name='org.gtk.GDBus.Example.Block'>"
" <method name='Hello'>"
" <arg type='s' name='greeting' direction='in'/>"
" <arg type='s' name='response' direction='out'/>"
" </method>"
" <property type='i' name='Major' access='read'/>"
" <property type='i' name='Minor' access='read'/>"
" <property type='s' name='Notes' access='readwrite'/>"
" </interface>"
" <interface name='org.gtk.GDBus.Example.Partition'>"
" <method name='Hello'>"
" <arg type='s' name='greeting' direction='in'/>"
" <arg type='s' name='response' direction='out'/>"
" </method>"
" <property type='i' name='PartitionNumber' access='read'/>"
" <property type='s' name='Notes' access='readwrite'/>"
" </interface>"
"</node>";
/* ---------------------------------------------------------------------------------------------------- */
static void
manager_method_call (GDBusConnection *connection,
const gchar *sender,
const gchar *object_path,
const gchar *interface_name,
const gchar *method_name,
GVariant *parameters,
GDBusMethodInvocation *invocation,
gpointer user_data)
{
const gchar *greeting;
gchar *response;
g_assert_cmpstr (interface_name, ==, "org.gtk.GDBus.Example.Manager");
g_assert_cmpstr (method_name, ==, "Hello");
g_variant_get (parameters, "(&s)", &greeting);
response = g_strdup_printf ("Method %s.%s with user_data '%s' on object path %s called with arg '%s'",
interface_name,
method_name,
(const gchar *) user_data,
object_path,
greeting);
g_dbus_method_invocation_return_value (invocation,
g_variant_new ("(s)", response));
g_free (response);
}
const GDBusInterfaceVTable manager_vtable =
{
manager_method_call,
NULL, /* get_property */
NULL /* set_property */
};
/* ---------------------------------------------------------------------------------------------------- */
static void
block_method_call (GDBusConnection *connection,
const gchar *sender,
const gchar *object_path,
const gchar *interface_name,
const gchar *method_name,
GVariant *parameters,
GDBusMethodInvocation *invocation,
gpointer user_data)
{
g_assert_cmpstr (interface_name, ==, "org.gtk.GDBus.Example.Block");
if (g_strcmp0 (method_name, "Hello") == 0)
{
const gchar *greeting;
gchar *response;
g_variant_get (parameters, "(&s)", &greeting);
response = g_strdup_printf ("Method %s.%s with user_data '%s' on object path %s called with arg '%s'",
interface_name,
method_name,
(const gchar *) user_data,
object_path,
greeting);
g_dbus_method_invocation_return_value (invocation,
g_variant_new ("(s)", response));
g_free (response);
}
else if (g_strcmp0 (method_name, "DoStuff") == 0)
{
g_dbus_method_invocation_return_dbus_error (invocation,
"org.gtk.GDBus.TestSubtree.Error.Failed",
"This method intentionally always fails");
}
else
{
g_assert_not_reached ();
}
}
static GVariant *
block_get_property (GDBusConnection *connection,
const gchar *sender,
const gchar *object_path,
const gchar *interface_name,
const gchar *property_name,
GError **error,
gpointer user_data)
{
GVariant *ret;
const gchar *node;
gint major;
gint minor;
node = strrchr (object_path, '/') + 1;
if (g_str_has_prefix (node, "sda"))
major = 8;
else
major = 9;
if (strlen (node) == 4)
minor = node[3] - '0';
else
minor = 0;
ret = NULL;
if (g_strcmp0 (property_name, "Major") == 0)
{
ret = g_variant_new_int32 (major);
}
else if (g_strcmp0 (property_name, "Minor") == 0)
{
ret = g_variant_new_int32 (minor);
}
else if (g_strcmp0 (property_name, "Notes") == 0)
{
g_set_error (error,
G_IO_ERROR,
G_IO_ERROR_FAILED,
"Hello %s. I thought I said reading this property "
"always results in an error. kthxbye",
sender);
}
else
{
g_assert_not_reached ();
}
return ret;
}
static gboolean
block_set_property (GDBusConnection *connection,
const gchar *sender,
const gchar *object_path,
const gchar *interface_name,
const gchar *property_name,
GVariant *value,
GError **error,
gpointer user_data)
{
/* TODO */
g_assert_not_reached ();
}
const GDBusInterfaceVTable block_vtable =
{
block_method_call,
block_get_property,
block_set_property,
};
/* ---------------------------------------------------------------------------------------------------- */
static void
partition_method_call (GDBusConnection *connection,
const gchar *sender,
const gchar *object_path,
const gchar *interface_name,
const gchar *method_name,
GVariant *parameters,
GDBusMethodInvocation *invocation,
gpointer user_data)
{
const gchar *greeting;
gchar *response;
g_assert_cmpstr (interface_name, ==, "org.gtk.GDBus.Example.Partition");
g_assert_cmpstr (method_name, ==, "Hello");
g_variant_get (parameters, "(&s)", &greeting);
response = g_strdup_printf ("Method %s.%s with user_data '%s' on object path %s called with arg '%s'",
interface_name,
method_name,
(const gchar *) user_data,
object_path,
greeting);
g_dbus_method_invocation_return_value (invocation,
g_variant_new ("(s)", response));
g_free (response);
}
const GDBusInterfaceVTable partition_vtable =
{
partition_method_call,
//partition_get_property,
//partition_set_property
};
/* ---------------------------------------------------------------------------------------------------- */
static gchar **
subtree_enumerate (GDBusConnection *connection,
const gchar *sender,
const gchar *object_path,
gpointer user_data)
{
gchar **nodes;
GPtrArray *p;
p = g_ptr_array_new ();
g_ptr_array_add (p, g_strdup ("sda"));
g_ptr_array_add (p, g_strdup ("sda1"));
g_ptr_array_add (p, g_strdup ("sda2"));
g_ptr_array_add (p, g_strdup ("sda3"));
g_ptr_array_add (p, g_strdup ("sdb"));
g_ptr_array_add (p, g_strdup ("sdb1"));
g_ptr_array_add (p, g_strdup ("sdc"));
g_ptr_array_add (p, g_strdup ("sdc1"));
g_ptr_array_add (p, NULL);
nodes = (gchar **) g_ptr_array_free (p, FALSE);
return nodes;
}
static GDBusInterfaceInfo **
subtree_introspect (GDBusConnection *connection,
const gchar *sender,
const gchar *object_path,
const gchar *node,
gpointer user_data)
{
GPtrArray *p;
p = g_ptr_array_new ();
if (node == NULL)
{
g_ptr_array_add (p, g_dbus_interface_info_ref (manager_interface_info));
}
else
{
g_ptr_array_add (p, g_dbus_interface_info_ref (block_interface_info));
if (strlen (node) == 4)
g_ptr_array_add (p,
g_dbus_interface_info_ref (partition_interface_info));
}
g_ptr_array_add (p, NULL);
return (GDBusInterfaceInfo **) g_ptr_array_free (p, FALSE);
}
static const GDBusInterfaceVTable *
subtree_dispatch (GDBusConnection *connection,
const gchar *sender,
const gchar *object_path,
const gchar *interface_name,
const gchar *node,
gpointer *out_user_data,
gpointer user_data)
{
const GDBusInterfaceVTable *vtable_to_return;
gpointer user_data_to_return;
if (g_strcmp0 (interface_name, "org.gtk.GDBus.Example.Manager") == 0)
{
user_data_to_return = "The Root";
vtable_to_return = &manager_vtable;
}
else
{
if (strlen (node) == 4)
user_data_to_return = "A partition";
else
user_data_to_return = "A block device";
if (g_strcmp0 (interface_name, "org.gtk.GDBus.Example.Block") == 0)
vtable_to_return = &block_vtable;
else if (g_strcmp0 (interface_name, "org.gtk.GDBus.Example.Partition") == 0)
vtable_to_return = &partition_vtable;
else
g_assert_not_reached ();
}
*out_user_data = user_data_to_return;
return vtable_to_return;
}
const GDBusSubtreeVTable subtree_vtable =
{
subtree_enumerate,
subtree_introspect,
subtree_dispatch
};
/* ---------------------------------------------------------------------------------------------------- */
static void
on_bus_acquired (GDBusConnection *connection,
const gchar *name,
gpointer user_data)
{
guint registration_id;
registration_id = g_dbus_connection_register_subtree (connection,
"/org/gtk/GDBus/TestSubtree/Devices",
&subtree_vtable,
G_DBUS_SUBTREE_FLAGS_NONE,
NULL, /* user_data */
NULL, /* user_data_free_func */
NULL); /* GError** */
g_assert (registration_id > 0);
}
static void
on_name_acquired (GDBusConnection *connection,
const gchar *name,
gpointer user_data)
{
}
static void
on_name_lost (GDBusConnection *connection,
const gchar *name,
gpointer user_data)
{
exit (1);
}
int
main (int argc, char *argv[])
{
guint owner_id;
GMainLoop *loop;
/* We are lazy here - we don't want to manually provide
* the introspection data structures - so we just build
* them from XML.
*/
introspection_data = g_dbus_node_info_new_for_xml (introspection_xml, NULL);
g_assert (introspection_data != NULL);
manager_interface_info = g_dbus_node_info_lookup_interface (introspection_data, "org.gtk.GDBus.Example.Manager");
block_interface_info = g_dbus_node_info_lookup_interface (introspection_data, "org.gtk.GDBus.Example.Block");
partition_interface_info = g_dbus_node_info_lookup_interface (introspection_data, "org.gtk.GDBus.Example.Partition");
g_assert (manager_interface_info != NULL);
g_assert (block_interface_info != NULL);
g_assert (partition_interface_info != NULL);
owner_id = g_bus_own_name (G_BUS_TYPE_SESSION,
"org.gtk.GDBus.TestSubtree",
G_BUS_NAME_OWNER_FLAGS_NONE,
on_bus_acquired,
on_name_acquired,
on_name_lost,
NULL,
NULL);
loop = g_main_loop_new (NULL, FALSE);
g_main_loop_run (loop);
g_bus_unown_name (owner_id);
g_dbus_node_info_unref (introspection_data);
return 0;
}