1 /*
2 * Copyright © 2020 Intel Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21 * IN THE SOFTWARE.
22 */
23
24 #include "u_qsort.h"
25 #include <thread>
26
27 thread_local int (*tl_qsort_r_compar)(const void *, const void *, void *);
28 thread_local void *tl_qsort_r_arg;
29
30 static int
qsort_r_compar(const void * a,const void * b)31 qsort_r_compar(const void *a, const void *b)
32 {
33 return tl_qsort_r_compar(a, b, tl_qsort_r_arg);
34 }
35
36 void
util_tls_qsort_r(void * base,size_t nmemb,size_t size,int (* compar)(const void *,const void *,void *),void * arg)37 util_tls_qsort_r(void *base, size_t nmemb, size_t size,
38 int (*compar)(const void *, const void *, void *),
39 void *arg)
40 {
41 tl_qsort_r_compar = compar;
42 tl_qsort_r_arg = arg;
43 return qsort(base, nmemb, size, qsort_r_compar);
44 }
45
46 int
util_qsort_adapter(void * ctx,const void * elem1,const void * elem2)47 util_qsort_adapter(void *ctx, const void *elem1, const void *elem2)
48 {
49 util_qsort_adapter_data *data =
50 reinterpret_cast<util_qsort_adapter_data*>(ctx);
51 return data->compar(elem1, elem2, data->args);
52 }
53