--- /dev/null
+// $Id$ --*- c -*--
+
+// Copyright (C) 2004 Enrico Scholz <enrico.scholz@informatik.tu-chemnitz.de>
+//
+// This program 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; version 2 of the License.
+//
+// This program 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 this program; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <vserver.h>
+#include <errno.h>
+
+ // try to switch in context 1
+bool
+switchToWatchXid(char const **errptr)
+{
+#if 0
+# warning Compiling in debug-code
+ return;
+#endif
+ if (vc_get_task_xid(0)==1) return true;
+
+ if (vc_isSupported(vcFEATURE_MIGRATE)) {
+ if (vc_create_context(1)==VC_NOCTX) {
+ if (errno!=EEXIST) {
+ if (errptr) *errptr = "vc_create_context()";
+ return false;
+ }
+
+ if (vc_migrate_context(1)==-1) {
+ if (errptr) *errptr = "vc_migrate_context()";
+ return false;
+ }
+ }
+ }
+ else {
+#if VC_ENABLE_API_COMPAT
+ if (vc_new_s_context(1,0,0)==VC_NOCTX) {
+ if (errptr) *errptr = "vc_new_s_context()";
+ return false;
+ }
+#else
+ if (errptr) *errptr = "can not change context: migrate kernel feature missing and 'compat' API disabled";
+ errno = ENOSYS;
+ return false;
+#endif
+ }
+
+ return true;
+}
+