util-vserver-0.30.208

[util-vserver.git] / ensc_wrappers / wrappers_handler.hc

diff --git a/ensc_wrappers/wrappers_handler.hc b/ensc_wrappers/wrappers_handler.hc
new file mode 100644 (file)
index 0000000..f820371
--- /dev/null
+++ b/ensc_wrappers/wrappers_handler.hc
@@ -0,0 +1,49 @@
+// $Id: wrappers_handler.hc,v 1.4 2004/03/18 05:27:10 ensc Exp $    --*- 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.
+
+
+#ifndef H_ENSC_IN_WRAPPERS_H
+#  error wrappers_handler.hc can not be used in this way
+#endif
+
+#include <stdlib.h>
+#include <stdbool.h>
+#include <stdio.h>
+
+static inline ALWAYSINLINE NORETURN void
+FatalErrnoErrorFail(char const msg[])
+{
+  extern int   wrapper_exit_code;
+
+#ifdef ENSC_WRAPPERS_PREFIX
+  {
+    int                old_errno = errno;
+    WRITE_MSG(2, ENSC_WRAPPERS_PREFIX);
+    errno = old_errno;
+  }
+#endif
+  perror(msg);
+  
+  exit(wrapper_exit_code);
+}
+
+static UNUSED void 
+FatalErrnoError(bool condition, char const msg[]) /*@*/
+{
+  if (__builtin_expect(!condition,true))       return;
+  FatalErrnoErrorFail(msg);
+}