newlib-cygwin/newlib/libc/include/sys/time.h

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/* time.h -- An implementation of the standard Unix <sys/time.h> file.
Written by Geoffrey Noer <noer@cygnus.com>
Public domain; no rights reserved. */
#ifndef _SYS_TIME_H_
#define _SYS_TIME_H_
#include <_ansi.h>
#include <sys/cdefs.h>
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#include <sys/types.h>
#ifdef __cplusplus
extern "C" {
#endif
#ifndef _TIMEVAL_DEFINED
#define _TIMEVAL_DEFINED
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struct timeval {
time_t tv_sec;
suseconds_t tv_usec;
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};
/* BSD time macros used by RTEMS code */
#if defined (__rtems__) || defined (__CYGWIN__)
/* Convenience macros for operations on timevals.
NOTE: `timercmp' does not work for >= or <=. */
#define timerisset(tvp) ((tvp)->tv_sec || (tvp)->tv_usec)
#define timerclear(tvp) ((tvp)->tv_sec = (tvp)->tv_usec = 0)
#define timercmp(a, b, CMP) \
(((a)->tv_sec == (b)->tv_sec) ? \
((a)->tv_usec CMP (b)->tv_usec) : \
((a)->tv_sec CMP (b)->tv_sec))
#define timeradd(a, b, result) \
do { \
(result)->tv_sec = (a)->tv_sec + (b)->tv_sec; \
(result)->tv_usec = (a)->tv_usec + (b)->tv_usec; \
if ((result)->tv_usec >= 1000000) \
{ \
++(result)->tv_sec; \
(result)->tv_usec -= 1000000; \
} \
} while (0)
#define timersub(a, b, result) \
do { \
(result)->tv_sec = (a)->tv_sec - (b)->tv_sec; \
(result)->tv_usec = (a)->tv_usec - (b)->tv_usec; \
if ((result)->tv_usec < 0) { \
--(result)->tv_sec; \
(result)->tv_usec += 1000000; \
} \
} while (0)
#endif /* defined (__rtems__) || defined (__CYGWIN__) */
#endif /* !_TIMEVAL_DEFINED */
struct timezone {
int tz_minuteswest;
int tz_dsttime;
};
#ifdef __CYGWIN__
#include <cygwin/sys_time.h>
#endif /* __CYGWIN__ */
#define ITIMER_REAL 0
#define ITIMER_VIRTUAL 1
#define ITIMER_PROF 2
struct itimerval {
struct timeval it_interval;
struct timeval it_value;
};
Throughout, run newlib with -Wall -Werror option and fix bugs and compiler warnings found this way. * libc/stdio/freopen.c (_freopen_r): Fix bug setting _flags. * libc/include/stdio.h (_rename): Define when building newlib. * libc/include/sys/signal.h (_kill): Ditto. * libc/include/sys/stat.h (_mkdir): Ditto. * libc/include/sys/time.h (_gettimeofday): Ditto. * libc/include/sys/times.h (_times): Ditto. * libc/include/sys/wait.h (_wait): Ditto. * libc/locale/lmessages.c (empty): Don't define for Cygwin. * libc/locale/lmonetary.c (cnv): Ditto. * libc/locale/nl_langinfo.c (nl_langinfo): Ditto for variable s. * libc/posix/collate.c: Throughout cast to avoid compiler warning. * libc/posix/engine.c (matcher): Initialize dp to avoid compiler warning. * libc/posix/glob.c: Disable on Cygwin. Explain why. * libc/posix/regcomp.c: Fix "uninitialized" compiler warnings. (dissect): Deliberately silence gcc compiler warning. Add comment to explain why. * libc/posix/wordexp.c (wordexp): Remove num_bytes variable since result is never used. * libc/posix/popen.c (popen): Ditto for variable last. * libc/reent/mkdirr.c: Include sys/stat.h. * libc/reent/renamer.c: Include stdio.h. * libc/search/hash.c: Throughout use underscored variants of the stat function family. (init_hash): Add missing definition for the __USE_INTERNAL_STAT64 case. * libc/search/hash_bigkey.c (__big_insert): Add parenthesis to avoid compiler warning. * libc/search/hash_page.c (overflow_page): Initalize freep to NULL to avoid compiler warning. * libc/stdio/asiprintf.c (_asiprintf_r): Cast unsigned char * to char * to avoid compiler warning. (asiprintf): Ditto. * libc/stdio/asprintf.c (_asprintf_r): Ditto. (asprintf): Ditto. * libc/stdio/vasiprintf.c (_vasiprintf_r): Ditto. * libc/stdio/vasprintf.c (_vasprintf_r): Ditto. * libc/stdio/mktemp.c (_gettemp): Cast to unsigned char in call to isdigit to avoid compiler warning. * libc/stdio/vfprintf.c (_VFPRINTF_R): Initialize variables used for grouping to avoid compiler warning. Only define and set nseps and nrepeats if they are really used. * libc/stdio/vfwprintf.c (_VFWPRINTF_R): Ditto. Only define state if it is really used. * libc/stdio/vfscanf.c (u_char): Revert to be defined as unsigned char. (__SVFSCANF_R): Cast fmt in call to __mbtowc. * libc/stdlib/mbtowc_r.c (JIS_state_table): Disable when building Cygwin. (JIS_action_table): Ditto. * libc/stdlib/wctomb_r.c (__utf8_wctomb): Add parenthesis to avoid compiler warning. * libc/string/strcasestr.c: Deliberately silence gcc compiler warning. Add comment to explain why. * libc/time/strptime.c (strptime): Cast to unsigned char in calls to isspace to avoid compiler warning. * libm/math/e_atan2.c (__ieee754_atan2): Add parenthesis to avoid compiler warning. * libm/math/e_exp.c (__ieee754_exp): Initialize k to 0 to avoid compiler warning. Drop setting it to 0 later. * libm/math/ef_exp.c (__ieee754_expf): Ditto. * libm/math/e_pow.c (__ieee754_pow): Add braces to avoid compiler warning. * libm/math/ef_pow.c (__ieee754_powf): Ditto. * libm/math/er_lgamma.c (__ieee754_lgamma_r): Initialize nadj to 0 to avoid compiler warning. * libm/math/erf_lgamma.c (__ieee754_lgammaf_r): Ditto. * libm/math/e_rem_pio2.c (__ieee754_rem_pio2): Ditto for variable z. * libm/common/sf_round.c (roundf): Remove signbit variable since result is never used.
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#ifdef _COMPILING_NEWLIB
int _EXFUN(_gettimeofday, (struct timeval *__p, void *__tz));
#endif
int _EXFUN(gettimeofday, (struct timeval *__restrict __p,
void *__restrict __tz));
#if __BSD_VISIBLE
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int _EXFUN(settimeofday, (const struct timeval *, const struct timezone *));
int _EXFUN(adjtime, (const struct timeval *, struct timeval *));
#endif
int _EXFUN(utimes, (const char *__path, const struct timeval *__tvp));
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int _EXFUN(getitimer, (int __which, struct itimerval *__value));
int _EXFUN(setitimer, (int __which, const struct itimerval *__restrict __value,
struct itimerval *__restrict __ovalue));
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#ifdef __cplusplus
}
#endif
#endif /* _SYS_TIME_H_ */