gdbsupport/gdb-hashtab.h

   1 /* Hash table wrappers for gdb.
   2    Copyright (C) 2021 Free Software Foundation, Inc.
   3
   4    This file is part of GDB.
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  18
  19 #ifndef GDBSUPPORT_GDB_HASHTAB_H
  20 #define GDBSUPPORT_GDB_HASHTAB_H
  21
  22 #include "hashtab.h"
  23
  24 /* A deleter for a hash table.  */
  25 struct htab_deleter
  26 {
  27   void operator() (htab *ptr) const
  28   {
  29     htab_delete (ptr);
  30   }
  31 };
  32
  33 /* A unique_ptr wrapper for htab_t.  */
  34 typedef std::unique_ptr<htab, htab_deleter> htab_up;
  35
  36 /* A wrapper for 'delete' that can used as a hash table entry deletion
  37    function.  */
  38 template<typename T>
  39 void
  40 htab_delete_entry (void *ptr)
  41 {
  42   delete (T *) ptr;
  43 }
  44
  45 /* Allocation and deallocation functions for the libiberty hash table
  46    which use obstacks.  */
  47 void *hashtab_obstack_allocate (void *data, size_t size, size_t count);
  48 void dummy_obstack_deallocate (void *object, void *data);
  49
  50 #endif /* GDBSUPPORT_GDB_HASHTAB_H */