gdb/gdb_obstack.h

   1 /* Obstack wrapper for GDB.
   2
   3    Copyright (C) 2002, 2007, 2008, 2009, 2010 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 #if !defined (GDB_OBSTACK_H)
  21 #define GDB_OBSTACK_H 1
  22
  23 #include "obstack.h"
  24
  25 /* Utility macros - wrap obstack alloc into something more robust.  */
  26
  27 #define OBSTACK_ZALLOC(OBSTACK,TYPE) (memset (obstack_alloc ((OBSTACK), sizeof (TYPE)), 0, sizeof (TYPE)))
  28
  29 #define OBSTACK_CALLOC(OBSTACK,NUMBER,TYPE) (memset (obstack_alloc ((OBSTACK), (NUMBER) * sizeof (TYPE)), 0, (NUMBER) * sizeof (TYPE)))
  30
  31 /* Unless explicitly specified, GDB obstacks always use xmalloc() and
  32    xfree().  */
  33 /* Note: ezannoni 2004-02-09: One could also specify the allocation
  34    functions using a special init function for each obstack,
  35    obstack_specify_allocation.  However we just use obstack_init and
  36    let these defines here do the job.  While one could argue the
  37    superiority of one approach over the other, we just chose one
  38    throughout.  */
  39
  40 #define obstack_chunk_alloc xmalloc
  41 #define obstack_chunk_free xfree
  42
  43 #define obstack_grow_str(OBSTACK,STRING) \
  44   obstack_grow (OBSTACK, STRING, strlen (STRING))
  45 #define obstack_grow_str0(OBSTACK,STRING) \
  46   obstack_grow0 (OBSTACK, STRING, strlen (STRING))
  47
  48 #define obstack_grow_wstr(OBSTACK, WSTRING) \
  49   obstack_grow (OBSTACK, WSTRING, sizeof (gdb_wchar_t) * gdb_wcslen (WSTRING))
  50
  51 #endif