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#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <dbus/dbus.h>
#include <glib.h>
#include <dbus/dbus-glib-lowlevel.h>
DBusConnection *bus;
GMainContext *main_context;
typedef struct _SpiReentrantCallClosure
{
GMainLoop *loop;
DBusMessage *reply;
} SpiReentrantCallClosure;
static void
set_reply (DBusPendingCall * pending, void *user_data)
{
SpiReentrantCallClosure* closure = (SpiReentrantCallClosure *) user_data;
closure->reply = dbus_pending_call_steal_reply (pending);
dbus_connection_setup_with_g_main (bus, NULL);
g_main_loop_quit (closure->loop);
}
static DBusMessage *
send_and_allow_reentry (DBusConnection * bus, DBusMessage * message)
{
DBusPendingCall *pending;
SpiReentrantCallClosure closure;
closure.loop = g_main_loop_new (main_context, FALSE);
dbus_connection_setup_with_g_main (bus, main_context);
if (!dbus_connection_send_with_reply (bus, message, &pending, 3000))
{
dbus_connection_setup_with_g_main (bus, NULL);
return NULL;
}
dbus_pending_call_set_notify (pending, set_reply, (void *) &closure, NULL);
g_main_loop_run (closure.loop);
g_main_loop_unref (closure.loop);
return closure.reply;
}
int
main(int argc, const char *argv[])
{
DBusError error;
DBusMessage *message = NULL, *reply = NULL;
const char *str;
main_context = g_main_context_new ();
dbus_error_init (&error);
bus = dbus_bus_get (DBUS_BUS_SESSION, &error);
if (!bus)
{
fprintf(stderr, "Couldn't connect to bus: %s\n", error.name);
return 1;
}
dbus_connection_setup_with_g_main (bus, NULL);
message = dbus_message_new_method_call ("org.freedesktop.DBus", "/org/freedesktop/DBus", DBUS_INTERFACE_DBUS, "GetId");
reply = send_and_allow_reentry (bus, message);
if (dbus_message_get_type (reply) == DBUS_MESSAGE_TYPE_ERROR)
{
char *err;
dbus_message_get_args (reply, NULL, DBUS_TYPE_STRING, &err, DBUS_TYPE_INVALID);
fprintf (stderr, "Got error: %s\n", err);
return 1;
}
dbus_message_unref (reply);
dbus_message_unref (message);
message = dbus_message_new_method_call ("org.freedesktop.DBus", "/org/freedesktop/DBus", DBUS_INTERFACE_DBUS, "GetId");
reply = send_and_allow_reentry (bus, message);
if (!reply)
{
fprintf(stderr, "Sorry; dbus wouldn't answer me: %s\n", error.message);
exit(1);
}
if (dbus_message_get_type (reply) == DBUS_MESSAGE_TYPE_ERROR)
{
char *err;
dbus_message_get_args (reply, NULL, DBUS_TYPE_STRING, &err, DBUS_TYPE_INVALID);
fprintf (stderr, "Got error: %s\n", err);
return 1;
}
if (!dbus_message_get_args (reply, &error, DBUS_TYPE_STRING, &str, DBUS_TYPE_INVALID))
{
fprintf(stderr, "Sorry; can't communicate: %s\n", error.message);
exit(1);
}
return 0;
}
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