/*
* Check: a unit test framework for C
* Copyright (C) 2001, 2002 Arien Malec
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
#ifndef LIBCOMPAT_H
#define LIBCOMPAT_H
#if HAVE_CONFIG_H
#include <config.h>
#endif
#if defined(__GNUC__) && defined(__GNUC_MINOR__)
#define GCC_VERSION_AT_LEAST(major, minor) \
((__GNUC__ > (major)) || \
(__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
#else
#define GCC_VERSION_AT_LEAST(major, minor) 0
#endif
#if GCC_VERSION_AT_LEAST(2,95)
#define CK_ATTRIBUTE_UNUSED __attribute__ ((unused))
#else
#define CK_ATTRIBUTE_UNUSED
#endif /* GCC 2.95 */
#if GCC_VERSION_AT_LEAST(2,5)
#define CK_ATTRIBUTE_NORETURN __attribute__ ((noreturn))
#else
#define CK_ATTRIBUTE_NORETURN
#endif /* GCC 2.5 */
/*
* Used for MSVC to create the export attribute
* CK_DLL_EXP is defined during the compilation of the library
* on the command line.
*/
#ifndef CK_DLL_EXP
#define CK_DLL_EXP
#endif
#if defined(_MSC_VER)
#include <WinSock2.h> /* struct timeval, API used in gettimeofday implementation */
#include <io.h> /* read, write */
#include <process.h> /* getpid */
#endif /* _MSC_VER */
/* defines size_t */
#include <sys/types.h>
/* provides assert */
#include <assert.h>
/* defines FILE */
#include <stdio.h>
/* defines exit() */
#include <stdlib.h>
/* defines NAN, INFINITY, isnan(), isinf(), isfinite() */
#include <math.h>
/* However, some older Visual Studio Versions do not */
#if !defined(INFINITY) || !defined(NAN)
extern double DOUBLE_ZERO;
#define INFINITY (1.0/DOUBLE_ZERO)
#define NAN (DOUBLE_ZERO/DOUBLE_ZERO)
#endif
#if !defined(isnan) || !defined(isinf) || !defined(isfinite)
#define NEED_fpclassify
extern int fpclassify(double d);
#define FP_INFINITE (1)
#define FP_NAN (2)
#define FP_ZERO (4)
#define FP_NORMAL (8)
#define FP_SUBNORMAL (16)
#define isnan(x) ((fpclassify((double)(x)) & FP_NAN) == FP_NAN)
#define isinf(x) ((fpclassify((double)(x)) & FP_INFINITE) == FP_INFINITE)
#define isfinite(x) ((fpclassify((double)(x)) & (FP_NAN|FP_INFINITE)) == 0)
#endif
/* provides localtime and struct tm */
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif /* !HAVE_SYS_TIME_H */
#include <time.h>
/* declares fork(), _POSIX_VERSION. according to Autoconf.info,
unistd.h defines _POSIX_VERSION if the system is POSIX-compliant,
so we will use this as a test for all things uniquely provided by
POSIX like sigaction() and fork() */
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef HAVE_SYS_WAIT_H
#include <sys/wait.h>
#endif
/* declares pthread_create and friends */
#ifdef HAVE_PTHREAD
#include <pthread.h>
#endif
#ifdef HAVE_STDINT_H
#include <stdint.h>
#endif
/* replacement functions for broken originals */
#if !HAVE_DECL_ALARM
CK_DLL_EXP unsigned int alarm(unsigned int seconds);
#endif /* !HAVE_DECL_ALARM */
#if !HAVE_MALLOC
CK_DLL_EXP void *rpl_malloc(size_t n);
#endif /* !HAVE_MALLOC */
#if !HAVE_REALLOC
CK_DLL_EXP void *rpl_realloc(void *p, size_t n);
#endif /* !HAVE_REALLOC */
#if !HAVE_GETPID && HAVE__GETPID
#define getpid _getpid
#endif /* !HAVE_GETPID && HAVE__GETPID */
#if !HAVE_GETTIMEOFDAY
CK_DLL_EXP int gettimeofday(struct timeval *tv, void *tz);
#endif /* !HAVE_GETTIMEOFDAY */
#if !HAVE_DECL_LOCALTIME_R
#if !defined(localtime_r)
CK_DLL_EXP struct tm *localtime_r(const time_t * clock, struct tm *result);
#endif
#endif /* !HAVE_DECL_LOCALTIME_R */
#if !HAVE_DECL_STRDUP && !HAVE__STRDUP
CK_DLL_EXP char *strdup(const char *str);
#elif !HAVE_DECL_STRDUP && HAVE__STRDUP
#define strdup _strdup
#endif /* !HAVE_DECL_STRDUP && HAVE__STRDUP */
#if !HAVE_DECL_STRSIGNAL
CK_DLL_EXP char *strsignal(int sig);
#endif /* !HAVE_DECL_STRSIGNAL */
/*
* On systems where clock_gettime() is not available, or
* on systems where some clocks may not be supported, the
* definition for CLOCK_MONOTONIC and CLOCK_REALTIME may not
* be available. These should define which type of clock
* clock_gettime() should use. We define it here if it is
* not defined simply so the reimplementation can ignore it.
*
* We set the values of these clocks to some (hopefully)
* invalid value, to avoid the case where we define a
* clock with a valid value, and unintentionally use
* an actual good clock by accident.
*/
#ifndef CLOCK_MONOTONIC
#define CLOCK_MONOTONIC -1
#endif
#ifndef CLOCK_REALTIME
#define CLOCK_REALTIME -1
#endif
#ifndef HAVE_LIBRT
#ifdef STRUCT_TIMESPEC_DEFINITION_MISSING
/*
* The following structure is defined in POSIX 1003.1 for times
* specified in seconds and nanoseconds. If it is not defined in
* time.g, then we need to define it here
*/
struct timespec
{
time_t tv_sec;
long tv_nsec;
};
#endif /* STRUCT_TIMESPEC_DEFINITION_MISSING */
#ifdef STRUCT_ITIMERSPEC_DEFINITION_MISSING
/*
* The following structure is defined in POSIX.1b for timer start values and intervals.
* If it is not defined in time.h, then we need to define it here.
*/
struct itimerspec
{
struct timespec it_interval;
struct timespec it_value;
};
#endif /* STRUCT_ITIMERSPEC_DEFINITION_MISSING */
/*
* Do a simple forward declaration in case the struct is not defined.
* In the versions of timer_create in libcompat, sigevent is never
* used.
*/
struct sigevent;
CK_DLL_EXP int clock_gettime(clockid_t clk_id, struct timespec *ts);
CK_DLL_EXP int timer_create(clockid_t clockid, struct sigevent *sevp,
timer_t * timerid);
CK_DLL_EXP int timer_settime(timer_t timerid, int flags,
const struct itimerspec *new_value,
struct itimerspec *old_value);
CK_DLL_EXP int timer_delete(timer_t timerid);
#endif /* HAVE_LIBRT */
/*
* The following checks are to determine if the system's
* snprintf (or its variants) should be replaced with
* the C99 compliant version in libcompat.
*/
#if HAVE_CONFIG_H
#include <config.h>
#endif
#if HAVE_STDARG_H
#include <stdarg.h>
#if !HAVE_VSNPRINTF
CK_DLL_EXP int rpl_vsnprintf(char *, size_t, const char *, va_list);
#define vsnprintf rpl_vsnprintf
#endif
#if !HAVE_SNPRINTF
CK_DLL_EXP int rpl_snprintf(char *, size_t, const char *, ...);
#define snprintf rpl_snprintf
#endif
#endif /* HAVE_STDARG_H */
#if !HAVE_GETLINE
CK_DLL_EXP ssize_t getline(char **lineptr, size_t *n, FILE *stream);
#endif
/* silence warnings about an empty library */
CK_DLL_EXP void ck_do_nothing(void) CK_ATTRIBUTE_NORETURN;
#endif /* !LIBCOMPAT_H */