gdbsupport/gdb_unlinker.h

   1 /* Unlinking class
   2
   3    Copyright (C) 2016-2020 Free Software Foundation, Inc.
   4
   5    This file is part of GDB.
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  19
  20 #ifndef COMMON_GDB_UNLINKER_H
  21 #define COMMON_GDB_UNLINKER_H
  22
  23 namespace gdb
  24 {
  25
  26 /* An object of this class holds a filename and, when the object goes
  27    of scope, the file is removed using unlink.
  28
  29    A user of this class can request that the file be preserved using
  30    the "keep" method.  */
  31 class unlinker
  32 {
  33  public:
  34
  35   unlinker (const char *filename) ATTRIBUTE_NONNULL (2)
  36     : m_filename (filename)
  37   {
  38     gdb_assert (filename != NULL);
  39   }
  40
  41   ~unlinker ()
  42   {
  43     if (m_filename != NULL)
  44       unlink (m_filename);
  45   }
  46
  47   /* Keep the file, rather than unlink it.  */
  48   void keep ()
  49   {
  50     m_filename = NULL;
  51   }
  52
  53  private:
  54
  55   const char *m_filename;
  56 };
  57
  58 }
  59
  60 #endif /* COMMON_GDB_UNLINKER_H */