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 */
76