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glib/gio/tests/gdbus-non-socket.c

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/* GLib testing framework examples and tests
*
* Copyright (C) 2008-2010 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General
* Public License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*
* Author: David Zeuthen <davidz@redhat.com>
*/
#include <gio/gio.h>
#include <unistd.h>
#include <string.h>
#include <stdlib.h>
#ifdef G_OS_UNIX
#include <gio/gunixinputstream.h>
#include <gio/gunixoutputstream.h>
#include <gio/gunixconnection.h>
#endif
#include "gdbus-tests.h"
static GMainLoop *loop = NULL;
/* ---------------------------------------------------------------------------------------------------- */
#ifdef G_OS_UNIX
#include "test-pipe-unix.h"
#include "test-io-stream.h"
/* ---------------------------------------------------------------------------------------------------- */
static const GDBusArgInfo pokee_method_poke_out_arg0 = {
-1, /* ref_count */
"result",
"s",
NULL /* annotations */
};
static const GDBusArgInfo *pokee_method_poke_out_args[2] = {
&pokee_method_poke_out_arg0,
NULL,
};
static const GDBusArgInfo pokee_method_poke_in_arg0 = {
-1, /* ref_count */
"value",
"s",
NULL /* annotations */
};
static const GDBusArgInfo *pokee_method_poke_in_args[2] = {
&pokee_method_poke_in_arg0,
NULL,
};
static const GDBusMethodInfo pokee_method_poke = {
-1, /* ref_count */
"Poke",
(GDBusArgInfo**) pokee_method_poke_in_args,
(GDBusArgInfo**) pokee_method_poke_out_args,
NULL /* annotations */
};
static const GDBusMethodInfo *pokee_methods[2] = {
&pokee_method_poke,
NULL
};
static const GDBusInterfaceInfo pokee_object_info = {
-1, /* ref_count */
"org.gtk.GDBus.Pokee",
(GDBusMethodInfo**) pokee_methods,
NULL, /* signals */
NULL, /* properties */
NULL /* annotations */
};
static void
pokee_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 *str;
gchar *ret;
g_assert_cmpstr (method_name, ==, "Poke");
g_variant_get (parameters, "(&s)", &str);
ret = g_strdup_printf ("You poked me with: `%s'", str);
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(s)", ret));
g_free (ret);
}
static const GDBusInterfaceVTable pokee_vtable = {
pokee_method_call,
NULL, /* get_property */
NULL /* set_property */
};
/* Processes:
*
* parent
* \- first child (via fork()) is the pokee
* \- second child (via g_test_trap_fork()) is the poker
*
* The second child only exists to avoid sharing a main context between several
* second-children if we run a test resembling this one multiple times.
* See https://bugzilla.gnome.org/show_bug.cgi?id=658999 for why that's bad.
*/
static void
test_non_socket (void)
{
GIOStream *streams[2];
GDBusConnection *connection;
GError *error;
gchar *guid;
pid_t first_child;
GVariant *ret;
const gchar *str;
gboolean ok;
error = NULL;
ok = test_bidi_pipe (&streams[0], &streams[1], &error);
g_assert_no_error (error);
g_assert (ok);
g_assert (G_IS_IO_STREAM (streams[0]));
g_assert (G_IS_INPUT_STREAM (g_io_stream_get_input_stream (streams[0])));
g_assert (G_IS_OUTPUT_STREAM (g_io_stream_get_output_stream (streams[0])));
g_assert (G_IS_IO_STREAM (streams[1]));
g_assert (G_IS_INPUT_STREAM (g_io_stream_get_input_stream (streams[1])));
g_assert (G_IS_OUTPUT_STREAM (g_io_stream_get_output_stream (streams[1])));
switch ((first_child = fork ()))
{
case -1:
g_assert_not_reached ();
break;
case 0:
/* first child */
/* we shouldn't do this in the parent, because we shouldn't use a
* GMainContext both before and after fork
*/
loop = g_main_loop_new (NULL, FALSE);
ok = g_io_stream_close (streams[1], NULL, &error);
g_assert_no_error (error);
g_assert (ok);
g_object_unref (streams[1]);
guid = g_dbus_generate_guid ();
error = NULL;
/* We need to delay message processing to avoid the race
* described in
*
* https://bugzilla.gnome.org/show_bug.cgi?id=627188
*
* This is because (early) dispatching is done on the IO thread
* (method_call() isn't called until we're in the right thread
* though) so in rare cases the parent sends the message before
* we (the first child) register the object
*/
connection = g_dbus_connection_new_sync (streams[0],
guid,
G_DBUS_CONNECTION_FLAGS_AUTHENTICATION_SERVER |
G_DBUS_CONNECTION_FLAGS_DELAY_MESSAGE_PROCESSING,
NULL, /* GDBusAuthObserver */
NULL,
&error);
g_free (guid);
g_assert_no_error (error);
g_object_unref (streams[0]);
/* make sure we exit along with the parent */
g_dbus_connection_set_exit_on_close (connection, TRUE);
error = NULL;
g_dbus_connection_register_object (connection,
"/pokee",
(GDBusInterfaceInfo *) &pokee_object_info,
&pokee_vtable,
NULL, /* user_data */
NULL, /* user_data_free_func */
&error);
g_assert_no_error (error);
/* and now start message processing */
g_dbus_connection_start_message_processing (connection);
g_main_loop_run (loop);
g_assert_not_reached ();
break;
default:
/* parent continues below */
break;
}
/* This is #ifdef G_OS_UNIX anyway, so just use g_test_trap_fork() */
G_GNUC_BEGIN_IGNORE_DEPRECATIONS;
if (!g_test_trap_fork (0, 0))
{
/* parent */
g_object_unref (streams[0]);
g_object_unref (streams[1]);
g_test_trap_assert_passed ();
g_assert_cmpint (kill (first_child, SIGTERM), ==, 0);
return;
}
G_GNUC_END_IGNORE_DEPRECATIONS;
/* second child */
/* we shouldn't do this in the parent, because we shouldn't use a
* GMainContext both before and after fork
*/
loop = g_main_loop_new (NULL, FALSE);
ok = g_io_stream_close (streams[0], NULL, &error);
g_assert_no_error (error);
g_assert (ok);
g_object_unref (streams[0]);
connection = g_dbus_connection_new_sync (streams[1],
NULL, /* guid */
G_DBUS_CONNECTION_FLAGS_AUTHENTICATION_CLIENT,
NULL, /* GDBusAuthObserver */
NULL,
&error);
g_assert_no_error (error);
g_object_unref (streams[1]);
/* poke the first child */
error = NULL;
ret = g_dbus_connection_call_sync (connection,
NULL, /* name */
"/pokee",
"org.gtk.GDBus.Pokee",
"Poke",
g_variant_new ("(s)", "I am the POKER!"),
G_VARIANT_TYPE ("(s)"), /* return type */
G_DBUS_CALL_FLAGS_NONE,
-1,
NULL, /* cancellable */
&error);
g_assert_no_error (error);
g_variant_get (ret, "(&s)", &str);
g_assert_cmpstr (str, ==, "You poked me with: `I am the POKER!'");
g_variant_unref (ret);
g_object_unref (connection);
g_main_loop_unref (loop);
exit (0);
}
#else /* G_OS_UNIX */
static void
test_non_socket (void)
{
/* TODO: test this with e.g. GWin32InputStream/GWin32OutputStream */
}
#endif
/* ---------------------------------------------------------------------------------------------------- */
int
main (int argc,
char *argv[])
{
gint ret;
g_test_init (&argc, &argv, NULL);
g_test_add_func ("/gdbus/non-socket", test_non_socket);
ret = g_test_run();
return ret;
}
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