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/*
* librdkafka - Apache Kafka C library
*
* Copyright (c) 2016 Magnus Edenhill
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/**
* System portability
*/
#include "rd.h"
#include <stdlib.h>
/**
* qsort_r substitute
* This nicely explains why we wont bother with the native implementation
* on Win32 (qsort_s), OSX/FreeBSD (qsort_r with diff args):
* http://forum.theorex.tech/t/different-declarations-of-qsort-r-on-mac-and-linux/93/2
*/
static RD_TLS int (*rd_qsort_r_cmp)(const void *, const void *, void *);
static RD_TLS void *rd_qsort_r_arg;
static RD_UNUSED int rd_qsort_r_trampoline(const void *a, const void *b) {
return rd_qsort_r_cmp(a, b, rd_qsort_r_arg);
}
void rd_qsort_r(void *base,
size_t nmemb,
size_t size,
int (*compar)(const void *, const void *, void *),
void *arg) {
rd_qsort_r_cmp = compar;
rd_qsort_r_arg = arg;
qsort(base, nmemb, size, rd_qsort_r_trampoline);
rd_qsort_r_cmp = NULL;
rd_qsort_r_arg = NULL;
}
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