New file.

2000-11-22 Martin Baulig <martin@home-of-linux.org> * lib/glibtop-server.c: New file. * lib/test-backends.c: New file. * lib/Makefile.am: Build test-backends test program. * lib/init-backends.c: Port this to libxml 2. * configure.in: Make this really work. * acinclude.m4: Removed the xml stuff. * Makefile.am (SUBDIRS): Put lib in front of sysdeps and backends.
2000-11-22 20:58:15 +00:00
parent 81b009733e
commit cee38c53bc
10 changed files with 323 additions and 84 deletions
--- a/13
+++ b/13
@@ -1,3 +1,16 @@
+2000-11-22  Martin Baulig  <martin@home-of-linux.org>
+
+	* lib/glibtop-server.c: New file.
+
+	* lib/test-backends.c: New file.
+	* lib/Makefile.am: Build test-backends test program.
+
+	* lib/init-backends.c: Port this to libxml 2.
+
+	* configure.in: Make this really work.
+	* acinclude.m4: Removed the xml stuff.
+	* Makefile.am (SUBDIRS): Put lib in front of sysdeps and backends.
+
 2000-11-21  Martin Baulig  <martin@home-of-linux.org>

 	* configure.in: Removed gnomesupport checks here and started
--- a/Makefile.am
+++ b/Makefile.am
@@ -1,6 +1,6 @@
 ## Process this file with automake to produce Makefile.in.

-SUBDIRS = po intl misc include sysdeps backends lib src doc dtd scripts
+SUBDIRS = po intl misc include lib sysdeps backends src doc dtd scripts

 include_HEADERS = glibtop.h
 configincludedir = $(pkglibdir)/include
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -520,41 +520,3 @@ AC_DEFUN([GNOME_LIBGTOP_SYSDEPS],[
 	AM_CONDITIONAL(HAVE_SYSDEPS, test x$libgtop_have_sysdeps = xyes)
 	AM_CONDITIONAL(LIBGTOP_USE_GMODULE, test x$libgtop_use_gmodule = xyes)
 ])
-
-dnl
-dnl LIBGTOP_XML_HOOK (script-if-xml-found, failflag)
-dnl
-dnl If failflag is "failure", script aborts due to lack of XML
-dnl 
-dnl Check for availability of the libxml library
-dnl the XML parser uses libz if available too
-dnl
-
-AC_DEFUN([LIBGTOP_XML_HOOK],[
-	LIBGTOP_XML_LIB=
-	AC_PATH_PROG(XML_CONFIG,xml-config,no)
-	if test "$XML_CONFIG" = no; then
-		if test x$2 = xfailure; then
-			AC_MSG_ERROR(Could not find xml-config)
-		else
-			AC_MSG_WARN(Could not find xml-config)
-		fi
-	else
-		AC_CHECK_LIB(xml, xmlDocGetRootElement, [
-			$1
-			LIBGTOP_XML_LIB=`$XML_CONFIG --libs`
-			AC_DEFINE(HAVE_LIBXML)
-		], [
-			if test x$2 = xfailure; then 
-				AC_MSG_ERROR(Could not link sample xml program)
-			else
-				AC_MSG_WARN(Could not link sample xml program)
-			fi
-		], `$XML_CONFIG --libs`)
-	fi
-	AC_SUBST(LIBGTOP_XML_LIB)
-])
-
-AC_DEFUN([LIBGTOP_XML_CHECK], [
-	LIBGTOP_XML_HOOK([],failure)
-])
--- a/configure.in
+++ b/configure.in
@@ -50,10 +50,8 @@ AC_SUBST(LT_CURRENT)
 AC_SUBST(LT_REVISION)
 AC_SUBST(LT_AGE)

-GNOME_INTERFACE_VERSION=2
-AC_SUBST(GNOME_INTERFACE_VERSION)
-
 GNOME_COMMON_INIT
+GNOME_PLATFORM_GNOME_2(yes, force)

 AC_ISC_POSIX
 AC_PROG_CC
@@ -94,7 +92,7 @@ AM_PROG_LIBTOOL
 dnl Let the user enable compiler warnings
 GNOME_COMPILE_WARNINGS

-PKG_CHECK_MODULES(GNOMESUPPORT, gnome-support-2.0:1.2.1)
+GNOME_PKGCONFIG_CHECK_MODULES(GNOMESUPPORT, gnome-support-2.0:1.2.1)
 AC_SUBST(GNOMESUPPORT_CFLAGS)
 AC_SUBST(GNOMESUPPORT_LIBS)

@@ -117,7 +115,10 @@ fi
 AC_SUBST(sysdeps_init_file)
 AC_MSG_RESULT($sysdeps_init_file)

-LIBGTOP_XML_CHECK
+GNOME_PKGCONFIG_CHECK_MODULES(XML, libxml-2.0:2.2.8)
+AC_DEFINE(HAVE_LIBXML)
+AC_SUBST(XML_CFLAGS)
+AC_SUBST(XML_LIBS)

 AC_ARG_WITH(libgtop-inodedb,
 [  --with-libgtop-inodedb  Build the inodedb stuff (default=no)],
@@ -142,15 +143,12 @@ AM_CONDITIONAL(ENABLE_SHARED, test x$enable_static = xyes)
 AM_PROG_LIBTOOL

 if test x$libgtop_use_gmodule = xyes ; then
-  AM_PATH_GLIB_2_0(1.3.0,,AC_MSG_ERROR(GLIB >= 1.3.0 is required for LibGTop),
-                   [gmodule])
+  GNOME_PKGCONFIG_CHECK_MODULES(GLIB, glib-2.0:1.3.1 gmodule-2.0:1.3.1 gobject-2.0:1.3.1)
 else
-  AM_PATH_GLIB_2_0(1.3.0,,AC_MSG_ERROR(GLIB >= 1.3.0 is required for LibGTop))
+  GNOME_PKGCONFIG_CHECK_MODULES(GLIB, glib-2.0:1.3.1 gobject-2.0:1.3.1)
 fi
-
-dnl You need to uncomment the following line if you want to use
-dnl libGTop without Gnome.
-dnl GNOME_SUPPORT_CHECKS
+AC_SUBST(GLIB_CFLAGS)
+AC_SUBST(GLIB_LIBS)

 dnl Checks for typedefs, structures, and compiler characteristics.
 AC_C_CONST
@@ -278,24 +276,6 @@ if test "x$libgtop_enable_debug" = xyes ; then
  AC_DEFINE(LIBGTOP_ENABLE_DEBUG)
 fi

-if test "x$gnome_found" = xyes ; then
-  LIBSUPPORT="$GNOME_LIBDIR -lgnomesupport"
-  SUPPORTINCS="$GNOME_INCLUDEDIR"
-else
-  LIBSUPPORT='$(top_builddir)/support/libgnomesupport.la'
-  SUPPORTINCS='-DNEED_GNOMESUPPORT_H -I$(top_builddir)/support -I$(top_srcdir)/support'
-fi
-
-dnl Some ugly hack; if '-lgnomesupport' is part of $GNOME_LIBS,
-dnl we include it here.
-case "$GNOME_LIBS" in
-	'*-lgnomesupport*' ) 
-	  LIBSUPPORT="$GNOME_LIBDIR -lgnomesupport"
-          SUPPORTINCS="$GNOME_INCLUDEDIR" ;;
-esac
-AC_SUBST(LIBSUPPORT)
-AC_SUBST(SUPPORTINCS)
-
 dnl These definitions are expanded in make.
 LIBGTOP_LIBS='-L$(libdir)'
 LIBGTOP_INCS='-I$(includedir) -I$(pkglibdir)/include'
@@ -316,12 +296,12 @@ if test x$libgtop_have_sysinfo = xyes ; then
  LIBGTOP_INCS="$LIBGTOP_INCS -DHAVE_LIBGTOP_SYSINFO"
 fi

-LIBGTOP_INCS="$LIBGTOP_INCS $SUPPORTINCS $GLIB_CFLAGS"
+LIBGTOP_INCS="$LIBGTOP_INCS $GNOMESUPPORT_CFLAGS $GLIB_CFLAGS $XML_CFLAGS"

 LIBGTOP_BINDIR='$(bindir)'
 LIBGTOP_SERVER='$(bindir)/libgtop_server'

-LIBGTOP_EXTRA_LIBS="$LIBGTOP_EXTRA_LIBS $GLIB_LIBS $LIBGTOP_XML_LIB"
+LIBGTOP_EXTRA_LIBS="$LIBGTOP_EXTRA_LIBS $GLIB_LIBS $XML_LIBS"

 if test x$libgtop_use_gmodule != xyes ; then
  LIBGTOP_LIBS="$LIBGTOP_LIBS -lgtop -lgtop_backend_common -lgtop_common"
@@ -348,7 +328,7 @@ AC_SUBST(machine_incs)

 LIBGTOP_BACKEND_DIR="\$(datadir)/libgtop/backends"

-INCLUDES="-D_IN_LIBGTOP -D_GNU_SOURCE -DGLIBTOP_NAMES -I\$(top_builddir) -I\$(top_srcdir) -I\$(top_srcdir)/sysdeps/$sysdeps_dir -I\$(top_srcdir)/include -I\$(top_builddir)/include -I\$(top_srcdir)/intl $SUPPORTINCS $GLIB_CFLAGS $CFLAGS $X_CFLAGS "'-DGTOPLOCALEDIR=\"$(datadir)/locale\" -DLIBGTOP_VERSION=\"'"$LIBGTOP_VERSION"'\" -DLIBGTOP_SERVER_VERSION=\"'"$LIBGTOP_SERVER_VERSION"'\" -DLIBGTOP_VERSION_CODE='$LIBGTOP_VERSION_CODE' -DLIBGTOP_SERVER=\"'"$LIBGTOP_SERVER"'\" -DLIBGTOP_BACKEND_DIR=\"'"$LIBGTOP_BACKEND_DIR"'\"'
+INCLUDES="-D_IN_LIBGTOP -D_GNU_SOURCE -DGLIBTOP_NAMES -I\$(top_builddir) -I\$(top_srcdir) -I\$(top_srcdir)/sysdeps/$sysdeps_dir -I\$(top_srcdir)/include -I\$(top_builddir)/include -I\$(top_srcdir)/intl $GNOMESUPPORT_CFLAGS $GLIB_CFLAGS $XML_CFLAGS $CFLAGS $X_CFLAGS "'-DGTOPLOCALEDIR=\"$(datadir)/locale\" -DLIBGTOP_VERSION=\"'"$LIBGTOP_VERSION"'\" -DLIBGTOP_SERVER_VERSION=\"'"$LIBGTOP_SERVER_VERSION"'\" -DLIBGTOP_VERSION_CODE='$LIBGTOP_VERSION_CODE' -DLIBGTOP_SERVER=\"'"$LIBGTOP_SERVER"'\" -DLIBGTOP_BACKEND_DIR=\"'"$LIBGTOP_BACKEND_DIR"'\"'

 AC_SUBST(INCLUDES)

--- a/lib/.cvsignore
+++ b/lib/.cvsignore
@@ -7,3 +7,5 @@ libgtop.la
 lib.c
 structures.h
 sysdeps-init.c
+libgtop_server.la
+test-backends
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -2,18 +2,27 @@ LINK				= $(LIBTOOL) --mode=link $(CC) $(CFLAGS) $(LDFLAGS) -o $@

 INCLUDES			= @INCLUDES@

-lib_LTLIBRARIES			= libgtop.la libgtop_server.la
+noinst_PROGRAMS			= test-backends

-libgtop_la_SOURCES		= errors.c glib-arrays.c backend.c \
+lib_LTLIBRARIES			= libgtop.la
+
+noinst_LTLIBRARIES		= libgtop_server.la
+
+libgtop_la_SOURCES		= errors.c backend.c \
 				  init-backends.c open-backend.c \
-				  glibtop-client.c
+				  glibtop-client.c glibtop-server.c

 libgtop_server_la_SOURCES	= error.c xmalloc.c

 libgtop_server_la_LDFLAGS	= $(LT_VERSION_INFO)

 libgtop_la_LDFLAGS		= $(LT_VERSION_INFO)
-libgtop_la_LIBADD		= $(LIBGTOP_XML_LIB)
+libgtop_la_LIBADD		= $(GLIB_LIBS) $(XML_LIBS)
+
+test_backends_SOURCES		= \
+	test-backends.c
+
+test_backends_LDADD		= libgtop.la

 glibtopdir			= $(includedir)/glibtop

--- a/lib/glibtop-client.c
+++ b/lib/glibtop-client.c
@@ -25,6 +25,9 @@

 #include <glibtop.h>

+#include <gobject/gsignal.h>
+#include <gobject/gvaluetypes.h>
+
 static void glibtop_client_class_init    (glibtop_client_class   *klass);
 static void glibtop_client_init          (glibtop_client         *client);
 static void glibtop_client_finalize      (GObject                *object);
@@ -38,6 +41,14 @@ struct _glibtop_client_private
 {
 };

+enum {
+    GLIBTOP_CLIENT_SIGNAL_ERROR,
+    GLIBTOP_CLIENT_SIGNAL_WARNING,
+    LAST_SIGNAL
+};
+
+static guint glibtop_client_signals [LAST_SIGNAL] = { 0 };
+
 GType
 glibtop_client_get_type (void)
 {
@@ -63,15 +74,104 @@ glibtop_client_get_type (void)
    return glibtop_client_type;
 }

+static void
+glibtop_client_error_handler (glibtop_client *client, GError *error)
+{
+    g_return_if_fail (GLIBTOP_IS_CLIENT (client));
+
+    if (error == NULL)
+	return;
+
+    g_error ("%s (%d): %s", g_quark_to_string (error->domain),
+	     error->code, error->message);
+}
+
+static void
+glibtop_client_warning_handler (glibtop_client *client, GError *error)
+{
+    g_return_if_fail (GLIBTOP_IS_CLIENT (client));
+
+    if (error == NULL)
+	return;
+
+    g_warning ("%s (%d): %s", g_quark_to_string (error->domain),
+	       error->code, error->message);
+
+}
+
+void
+glibtop_client_marshal_VOID__POINTER (GClosure     *closure,
+				      GValue       *return_value,
+				      guint         n_param_values,
+				      const GValue *param_values,
+				      gpointer      invocation_hint,
+				      gpointer      marshal_data)
+{
+    typedef void (*GSignalFunc_VOID__POINTER) (gpointer     data1,
+					       gpointer     arg_1,
+					       gpointer     data2);
+    register GSignalFunc_VOID__POINTER callback;
+    register GCClosure *cc = (GCClosure*) closure;
+    register gpointer data1, data2;
+
+    g_return_if_fail (n_param_values >= 2);
+
+    if (G_CCLOSURE_SWAP_DATA (closure))
+	{
+	    data1 = closure->data;
+	    data2 = g_value_get_as_pointer (param_values + 0);
+	}
+    else
+	{
+	    data1 = g_value_get_as_pointer (param_values + 0);
+	    data2 = closure->data;
+	}
+    callback = (GSignalFunc_VOID__POINTER) (marshal_data ? marshal_data : cc->callback);
+
+    callback (data1,
+	      g_value_get_as_pointer (param_values + 1),
+	      data2);
+}
+
 static void
 glibtop_client_class_init (glibtop_client_class *class)
 {
    GObjectClass *gobject_class;
+    GType *param_types;
+    GClosure *closure;

    gobject_class = (GObjectClass *) class;
  
    parent_class = g_type_class_ref (G_TYPE_OBJECT);

+    closure = g_signal_type_closure_new (G_TYPE_FROM_CLASS (class),
+					 G_STRUCT_OFFSET (glibtop_client_class,
+							  error));
+
+    param_types = g_new0 (GType, 1);
+    param_types [0] = G_TYPE_POINTER;
+  
+    glibtop_client_signals [GLIBTOP_CLIENT_SIGNAL_ERROR] =
+	g_signal_newv ("error", G_TYPE_FROM_CLASS (class),
+		       G_SIGNAL_RUN_LAST, closure, NULL,
+		       glibtop_client_marshal_VOID__POINTER,
+		       G_TYPE_NONE, 1, param_types);
+
+    closure = g_signal_type_closure_new (G_TYPE_FROM_CLASS (class),
+					 G_STRUCT_OFFSET (glibtop_client_class,
+							  warning));
+  
+    glibtop_client_signals [GLIBTOP_CLIENT_SIGNAL_WARNING] =
+	g_signal_newv ("warning", G_TYPE_FROM_CLASS (class),
+		       G_SIGNAL_RUN_LAST, closure, NULL,
+		       glibtop_client_marshal_VOID__POINTER,
+		       G_TYPE_NONE, 1, param_types);
+
+    g_free (param_types);
+
+    class->error = glibtop_client_error_handler;
+    class->warning = glibtop_client_warning_handler;
+  
    gobject_class->finalize = glibtop_client_finalize;
 }

@@ -104,3 +204,51 @@ glibtop_client_new (void)
 {
    return g_object_new (GLIBTOP_TYPE_CLIENT, NULL);
 }
+
+void
+glibtop_client_propagate_error (glibtop_client *client, GError *error)
+{
+    GValue params [2] = { { 0, }, { 0, } };
+
+    g_return_if_fail (GLIBTOP_IS_CLIENT (client));
+
+    if (error == NULL)
+	return;
+
+    g_value_init (params, GLIBTOP_CLIENT_TYPE (client));
+    g_value_set_object (params, G_OBJECT (client));
+
+    g_value_init (params + 1, G_TYPE_POINTER);
+    g_value_set_pointer (params + 1, error);
+
+    g_signal_emitv (params,
+		    glibtop_client_signals [GLIBTOP_CLIENT_SIGNAL_ERROR],
+		    0, NULL);
+  
+    g_value_unset (params + 1);
+    g_value_unset (params + 0);
+}
+
+void
+glibtop_client_propagate_warning (glibtop_client *client, GError *error)
+{
+    GValue params [2] = { { 0, }, { 0, } };
+
+    g_return_if_fail (GLIBTOP_IS_CLIENT (client));
+
+    if (error == NULL)
+	return;
+
+    g_value_init (params, GLIBTOP_CLIENT_TYPE (client));
+    g_value_set_object (params, G_OBJECT (client));
+
+    g_value_init (params + 1, G_TYPE_POINTER);
+    g_value_set_pointer (params + 1, error);
+
+    g_signal_emitv (params,
+		    glibtop_client_signals [GLIBTOP_CLIENT_SIGNAL_WARNING],
+		    0, NULL);
+  
+    g_value_unset (params + 1);
+    g_value_unset (params + 0);
+}
--- a/lib/glibtop-server.c
+++ b/lib/glibtop-server.c
@@ -0,0 +1,57 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 4 -*- */
+
+/* $Id$ */
+
+/* Copyright (C) 1998-99 Martin Baulig
+   This file is part of LibGTop 2.0.
+
+   Contributed by Martin Baulig <martin@home-of-linux.org>, April 1998.
+
+   LibGTop is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License,
+   or (at your option) any later version.
+
+   LibGTop 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 General Public License
+   for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with LibGTop; see the file COPYING. If not, write to the
+   Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.
+*/
+
+#include <glibtop.h>
+
+glibtop_server *
+glibtop_server_new (void)
+{
+    glibtop_server *retval;
+
+    retval = g_new0 (glibtop_server, 1);
+    retval->info = g_new0 (glibtop_server_info, 1);
+    retval->_priv = g_new0 (glibtop_server_private, 1);
+    retval->refcount = 1;
+
+    return retval;
+}
+
+void
+glibtop_server_ref (glibtop_server *server)
+{
+    server->refcount++;
+}
+
+void
+glibtop_server_unref (glibtop_server *server)
+{
+    server->refcount--;
+
+    if (server->refcount <= 0) {
+	g_free (server->_priv);
+	g_free (server->info);
+	g_free (server);
+    }
+}
--- a/lib/init-backends.c
+++ b/lib/init-backends.c
@@ -33,7 +33,7 @@

 #define LIBGTOP_XML_NAMESPACE	"http://www.home-of-linux.org/libgtop/1.1"

-#include <gnome-xml/parser.h>
+#include <libxml/parser.h>

 #include <dirent.h>

@@ -51,6 +51,8 @@ glibtop_init_backends (void)
    backends_initialized = 1;

 #if HAVE_LIBXML
+    LIBXML_TEST_VERSION;
+
    _glibtop_init_gmodule_backends (LIBGTOP_BACKEND_DIR);
 #endif
 }
@@ -60,7 +62,7 @@ glibtop_init_backends (void)
 static gchar *
 _get_library_filename (xmlDocPtr doc, xmlNodePtr cur, const char *directory)
 {
-    char *filename = xmlNodeListGetString (doc, cur->childs, 1);
+    char *filename = xmlNodeListGetString (doc, cur->xmlChildrenNode, 1);
    gchar *retval;

    if (!filename)
@@ -81,10 +83,10 @@ _parse_extra_libs (xmlDocPtr doc, xmlNsPtr ns, xmlNodePtr cur, const char *dir)
    GSList *list = NULL;

    /* We don't care what the top level element name is */
-    cur = cur->childs;
+    cur = cur->xmlChildrenNode;
    while (cur != NULL) {
        if ((!strcmp (cur->name, "ExtraLib")) && (cur->ns == ns)) {
-	    xmlNodePtr sub = cur->childs;
+	    xmlNodePtr sub = cur->xmlChildrenNode;

 	    while (sub != NULL) {
 		if ((!strcmp (sub->name, "ShlibName")) && (sub->ns == ns))
@@ -112,14 +114,14 @@ _parseBackend (xmlDocPtr doc, xmlNsPtr ns, xmlNodePtr cur, const char *dir)
    ret = g_new0 (glibtop_backend_entry, 1);

    /* We don't care what the top level element name is */
-    cur = cur->childs;
+    cur = cur->xmlChildrenNode;
    while (cur != NULL) {
        if ((!strcmp (cur->name, "Name")) && (cur->ns == ns))
            ret->name = xmlNodeListGetString
-		(doc, cur->childs, 1);
+		(doc, cur->xmlChildrenNode, 1);

        if ((!strcmp (cur->name, "Location")) && (cur->ns == ns)) {
-	    xmlNodePtr sub = cur->childs;
+	    xmlNodePtr sub = cur->xmlChildrenNode;

 	    while (sub != NULL) {
 		if ((!strcmp (sub->name, "LibtoolName")) && (sub->ns == ns))
@@ -198,7 +200,7 @@ _glibtop_init_gmodule_backends (const char *directory)
 	    continue;
 	}

-	cur = cur->childs;
+	cur = cur->xmlChildrenNode;
 	while (cur != NULL) {
 	    glibtop_backend_entry *backend;

--- a/lib/test-backends.c
+++ b/lib/test-backends.c
@@ -0,0 +1,66 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 4 -*- */
+
+/* $Id$ */
+
+/* Copyright (C) 1998-99 Martin Baulig
+   This file is part of LibGTop 1.0.
+
+   Contributed by Martin Baulig <martin@home-of-linux.org>, April 1998.
+
+   LibGTop is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License,
+   or (at your option) any later version.
+
+   LibGTop 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 General Public License
+   for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with LibGTop; see the file COPYING. If not, write to the
+   Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.
+*/
+
+#include <glibtop.h>
+#include <glibtop/backend.h>
+
+int
+main (int argc, char *argv [])
+{
+    glibtop_client *client;
+    glibtop_backend *backend_common;
+    glibtop_backend *backend_sysdeps;
+    GError *error = NULL;
+
+    g_type_init ();
+
+    glibtop_init_backends ();
+
+    client = glibtop_client_new ();
+
+    backend_common = glibtop_open_backend_l (client, "glibtop-backend-common",
+					     0, NULL, &error);
+
+    g_message (G_STRLOC ": backend = %p (%p)", backend_common, error);
+
+    if (error != NULL) {
+	glibtop_client_propagate_error (client, error);
+	g_error_free (error);
+	error = NULL;
+    }
+
+    backend_sysdeps = glibtop_open_backend_l (client, "glibtop-backend-sysdeps",
+					      0, NULL, &error);
+
+    g_message (G_STRLOC ": backend = %p (%p)", backend_sysdeps, error);
+
+    if (error != NULL) {
+	glibtop_client_propagate_error (client, error);
+	g_error_free (error);
+	error = NULL;
+    }
+
+    exit (0);
+}