start to track Daniel's version

[util-vserver.git] / vserver-start / undo.c

diff --git a/vserver-start/undo.c b/vserver-start/undo.c
deleted file mode 100644 (file)
index edfef44..0000000
--- a/vserver-start/undo.c
+++ /dev/null
@@ -1,92 +0,0 @@
-// $Id: undo.c 1676 2004-08-19 15:02:57Z ensc $    --*- 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 "undo.h"
-
-#include <lib_internal/util.h>
-#include <ensc_vector/vector.h>
-
-#include <stdlib.h>
-#include <unistd.h>
-#include <assert.h>
-
-struct FuncData
-{
-    ExitFunction               fn;
-    void const *               args;
-};
-
-struct Undo
-{
-    pid_t              pid_;
-    struct Vector      funcs;
-};
-
-
-static struct Undo     undo_data = {
-  .pid_ = -1
-};
-
-static void
-atexitHandler()
-{
-  struct FuncData const *      ptr;
-
-  if (undo_data.pid_ != getpid())
-    return;    // skip 'exit()' from forked processes
-
-  for (ptr=Vector_end(&undo_data.funcs);
-       ptr!=Vector_begin(&undo_data.funcs);
-       --ptr)
-    (ptr[-1].fn)(ptr[-1].args);
-}
-
-void
-Undo_init()
-{
-  if (undo_data.pid_!=-1) {
-    WRITE_MSG(2, "Undo already initialized; internal error...\n");
-    _exit(1);
-  }
-
-  undo_data.pid_ = getpid();
-  Vector_init(&undo_data.funcs, sizeof(struct FuncData));
-  
-  atexit(&atexitHandler);
-}
-
-void
-Undo_addTask(ExitFunction fn, void const *args)
-{
-  struct FuncData      *tmp = Vector_pushback(&undo_data.funcs);
-  assert(tmp!=0); // Vector_pushback never returns a null-pointer
-
-  tmp->fn   = fn;
-  tmp->args = args;
-}
-
-void
-Undo_detach()
-{
-  Vector_free(&undo_data.funcs);
-  undo_data.pid_ = -1;
-}