libctf/ctf-decls.h

   1 /* Declarations for missing functions.
   2    Copyright (C) 2019-2020 Free Software Foundation, Inc.
   3
   4    This file is part of libctf.
   5
   6    libctf is free software; you can redistribute it and/or modify it under
   7    the terms of the GNU General Public License as published by the Free
   8    Software Foundation; either version 3, or (at your option) any later
   9    version.
  10
  11    This program is distributed in the hope that it will be useful, but
  12    WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  14    See the 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; see the file COPYING.  If not see
  18    <http://www.gnu.org/licenses/>.  */
  19
  20 #ifndef _CTF_DECLS_H
  21 #define _CTF_DECLS_H
  22
  23 #include "config.h"
  24
  25 #include <stddef.h>
  26 #include <stdlib.h>
  27 #include "libiberty.h"
  28
  29 #if HAVE_QSORT_R_ARG_LAST
  30 static inline void
  31 ctf_qsort_r (void *base, size_t nmemb, size_t size,
  32              int (*compar)(const void *, const void *, void *),
  33              void *arg)
  34 {
  35   qsort_r (base, nmemb, size, compar, arg);
  36 }
  37 #elif HAVE_QSORT_R_COMPAR_LAST
  38 struct ctf_qsort_arg
  39 {
  40   int (*compar) (const void *, const void *, void *);
  41   void *arg;
  42 };
  43
  44 static int
  45 ctf_qsort_compar_thunk (void *arg, const void *a, const void *b)
  46 {
  47   struct ctf_qsort_arg *qsort_arg = (struct ctf_qsort_arg *) arg;
  48
  49   return qsort_arg->compar (a, b, arg);
  50 }
  51
  52 static inline void
  53 ctf_qsort_r (void *base, size_t nmemb, size_t size,
  54              int (*compar)(const void *, const void *, void *),
  55              void *arg)
  56 {
  57   struct ctf_qsort_arg thunk = { compar, arg };
  58   qsort_r (base, nmemb, size, &thunk, ctf_qsort_compar_thunk);
  59 }
  60 #else
  61 void ctf_qsort_r (void *base, size_t nmemb, size_t size,
  62               int (*compar)(const void *, const void *, void *),
  63               void *arg);
  64 #endif
  65
  66 #ifndef HAVE_O_CLOEXEC
  67 # define O_CLOEXEC 0
  68 #endif
  69
  70 #undef MAX
  71 #undef MIN
  72 #define MAX(a, b) ((a) > (b) ? (a) : (b))
  73 #define MIN(a, b) ((a) < (b) ? (a) : (b))
  74
  75 #endif /* _CTF_DECLS_H */