libc
/* $Id$ */
/* Copyright (c) 2012-2017 Pierre Pronchery <khorben@defora.org> */
/* This file is part of DeforaOS System libc */
/* 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
* HOLDER 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. */
#include <setjmp.h>
#include <stdio.h>
#include <string.h>
/* setjmp */
/* private */
/* variables */
static jmp_buf _jb;
static sigjmp_buf _sjb;
static int _ret;
/* prototypes */
#ifdef DEBUG
static void _jmp_buf_dump(jmp_buf jb);
static void _sigjmp_buf_dump(sigjmp_buf jb);
#endif
/* _setjmp */
static void __setjmp_test1(void);
static void __setjmp_test2(void);
/* setjmp */
static void _setjmp_test1(void);
static void _setjmp_test2(void);
/* sigsetjmp */
static void _sigsetjmp_test1(void);
static void _sigsetjmp_test2(void);
/* functions */
#ifdef DEBUG
/* jmp_buf_dump */
static void _jmp_buf_dump(jmp_buf jb)
{
size_t i;
char const * sep = "";
fprintf(stderr, "DEBUG: %s()\n", __func__);
for(i = 0; i < sizeof(jmp_buf) / sizeof(*jb); i++)
{
fprintf(stderr, "%s%p", sep, jb[i]);
sep = " ";
}
fputs("\n", stderr);
}
/* sigjmp_buf_dump */
static void _sigjmp_buf_dump(sigjmp_buf sjb)
{
size_t i;
char const * sep = "";
fprintf(stderr, "DEBUG: %s()\n", __func__);
for(i = 0; i < sizeof(sigjmp_buf) / sizeof(*sjb); i++)
{
fprintf(stderr, "%s%p", sep, sjb[i]);
sep = " ";
}
fputs("\n", stderr);
}
#endif
/* _setjmp */
/* _setjmp_test1 */
static void __setjmp_test1(void)
{
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s()\n", __func__);
#endif
_ret = 3;
__setjmp_test2();
}
/* _setjmp_test2 */
static void __setjmp_test2(void)
{
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s()\n", __func__);
#endif
_ret = 4;
_longjmp(_jb, 5);
_ret = 6;
}
/* setjmp */
/* setjmp_test1 */
static void _setjmp_test1(void)
{
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s()\n", __func__);
#endif
_ret = 3 << 1;
_setjmp_test2();
}
/* setjmp_test2 */
static void _setjmp_test2(void)
{
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s()\n", __func__);
#endif
_ret = 4 << 1;
longjmp(_jb, 5 << 1);
_ret = 6 << 1;
}
/* sigsetjmp */
/* sigsetjmp_test1 */
static void _sigsetjmp_test1(void)
{
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s()\n", __func__);
#endif
_ret = 3 << 2;
_sigsetjmp_test2();
}
/* sigsetjmp_test2 */
static void _sigsetjmp_test2(void)
{
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s()\n", __func__);
#endif
_ret = 4 << 2;
siglongjmp(_sjb, (5 << 2));
_ret = 6 << 2;
}
/* public */
/* functions */
/* main */
int main(int argc, char * argv[])
{
int res;
(void) argc;
/* _setjmp */
printf("%s: %s", argv[0], "Testing _setjmp()\n");
_ret = 2;
if((res = _setjmp(_jb)) == 0)
{
#ifdef DEBUG
_jmp_buf_dump(_jb);
#endif
__setjmp_test1();
}
else if(res == 5)
_ret = 0;
else
fprintf(stderr, "%s: %s", argv[0], "_setjmp() failed\n");
/* setjmp */
if(_ret == 0)
{
printf("%s: %s", argv[0], "Testing setjmp()\n");
_ret = 2;
memset(&_jb, 0, sizeof(_jb));
if((res = setjmp(_jb)) == 0)
{
#ifdef DEBUG
_jmp_buf_dump(_jb);
#endif
_setjmp_test1();
}
else if(res == (5 << 1))
_ret = 0;
else
fprintf(stderr, "%s: %s", argv[0], "setjmp() failed\n");
}
/* sigsetjmp (not saving the signal mask) */
if(_ret == 0)
{
printf("%s: %s", argv[0], "Testing sigsetjmp(1/2)\n");
_ret = 2;
if((res = sigsetjmp(_sjb, 0)) == 0)
{
#ifdef DEBUG
_sigjmp_buf_dump(_sjb);
#endif
_sigsetjmp_test1();
}
else if(res == (5 << 2))
_ret = 0;
else
fprintf(stderr, "%s: %s", argv[0],
"sigsetjmp(1/2) failed\n");
}
/* sigsetjmp (saving the signal mask) */
if(_ret == 0)
{
printf("%s: %s", argv[0], "Testing sigsetjmp(2/2)\n");
_ret = 2;
memset(&_sjb, 0, sizeof(_sjb));
if((res = sigsetjmp(_sjb, (5 << 2))) == 0)
{
#ifdef DEBUG
_sigjmp_buf_dump(_sjb);
#endif
_sigsetjmp_test1();
}
else if(res == (5 << 2))
_ret = 0;
else
fprintf(stderr, "%s: %s", argv[0],
"sigsetjmp(2/2) failed\n");
}
return _ret;
}