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

256 lines
6.4 KiB
C

/*
* time.h
*
* Struct and function declarations for dealing with time.
*/
#ifndef _TIME_H_
#define _TIME_H_
#include "_ansi.h"
#include <sys/reent.h>
#ifndef NULL
#define NULL 0
#endif
/* Get _CLOCKS_PER_SEC_ */
#include <machine/time.h>
#ifndef _CLOCKS_PER_SEC_
#define _CLOCKS_PER_SEC_ 1000
#endif
#define CLOCKS_PER_SEC _CLOCKS_PER_SEC_
#define CLK_TCK CLOCKS_PER_SEC
#define __need_size_t
#include <stddef.h>
#include <sys/types.h>
_BEGIN_STD_C
struct tm
{
int tm_sec;
int tm_min;
int tm_hour;
int tm_mday;
int tm_mon;
int tm_year;
int tm_wday;
int tm_yday;
int tm_isdst;
};
clock_t _EXFUN(clock, (void));
double _EXFUN(difftime, (time_t _time2, time_t _time1));
time_t _EXFUN(mktime, (struct tm *_timeptr));
time_t _EXFUN(time, (time_t *_timer));
#ifndef _REENT_ONLY
char *_EXFUN(asctime, (const struct tm *_tblock));
char *_EXFUN(ctime, (const time_t *_time));
struct tm *_EXFUN(gmtime, (const time_t *_timer));
struct tm *_EXFUN(localtime,(const time_t *_timer));
#endif
size_t _EXFUN(strftime, (char *_s, size_t _maxsize, const char *_fmt, const struct tm *_t));
char *_EXFUN(asctime_r, (const struct tm *, char *));
char *_EXFUN(ctime_r, (const time_t *, char *));
struct tm *_EXFUN(gmtime_r, (const time_t *, struct tm *));
struct tm *_EXFUN(localtime_r, (const time_t *, struct tm *));
_END_STD_C
#ifdef __cplusplus
extern "C" {
#endif
#ifndef __STRICT_ANSI__
char *_EXFUN(strptime, (const char *, const char *, struct tm *));
_VOID _EXFUN(tzset, (_VOID));
_VOID _EXFUN(_tzset_r, (struct _reent *));
/* getdate functions */
#ifdef HAVE_GETDATE
#ifndef _REENT_ONLY
#define getdate_err (*__getdate_err())
int *_EXFUN(__getdate_err,(_VOID));
struct tm * _EXFUN(getdate, (const char *));
/* getdate_err is set to one of the following values to indicate the error.
1 the DATEMSK environment variable is null or undefined,
2 the template file cannot be opened for reading,
3 failed to get file status information,
4 the template file is not a regular file,
5 an error is encountered while reading the template file,
6 memory allication failed (not enough memory available),
7 there is no line in the template that matches the input,
8 invalid input specification */
#endif /* !_REENT_ONLY */
/* getdate_r returns the error code as above */
int _EXFUN(getdate_r, (const char *, struct tm *));
#endif /* HAVE_GETDATE */
/* defines for the opengroup specifications Derived from Issue 1 of the SVID. */
extern __IMPORT time_t _timezone;
extern __IMPORT int _daylight;
extern __IMPORT char *_tzname[2];
/* POSIX defines the external tzname being defined in time.h */
#ifndef tzname
#define tzname _tzname
#endif
/* CYGWIN also exposes daylight and timezone in the name space */
#ifdef __CYGWIN__
#ifndef daylight
#define daylight _daylight
#endif
#ifdef timezonevar
#ifndef timezone
#define timezone ((long int) _timezone)
#endif
#else
char *_EXFUN(timezone, (void));
#endif
#endif /* __CYGWIN__ */
#endif /* !__STRICT_ANSI__ */
#ifdef __cplusplus
}
#endif
#include <sys/features.h>
#if defined(_POSIX_TIMERS)
#include <signal.h>
#ifdef __cplusplus
extern "C" {
#endif
/* Clocks, P1003.1b-1993, p. 263 */
int _EXFUN(clock_settime, (clockid_t clock_id, const struct timespec *tp));
int _EXFUN(clock_gettime, (clockid_t clock_id, struct timespec *tp));
int _EXFUN(clock_getres, (clockid_t clock_id, struct timespec *res));
/* Create a Per-Process Timer, P1003.1b-1993, p. 264 */
int _EXFUN(timer_create,
(clockid_t clock_id, struct sigevent *evp, timer_t *timerid));
/* Delete a Per_process Timer, P1003.1b-1993, p. 266 */
int _EXFUN(timer_delete, (timer_t timerid));
/* Per-Process Timers, P1003.1b-1993, p. 267 */
int _EXFUN(timer_settime,
(timer_t timerid, int flags, const struct itimerspec *value,
struct itimerspec *ovalue));
int _EXFUN(timer_gettime, (timer_t timerid, struct itimerspec *value));
int _EXFUN(timer_getoverrun, (timer_t timerid));
/* High Resolution Sleep, P1003.1b-1993, p. 269 */
int _EXFUN(nanosleep, (const struct timespec *rqtp, struct timespec *rmtp));
#ifdef __cplusplus
}
#endif
#else
#ifdef __CYGWIN__
#ifdef __cplusplus
extern "C" {
#endif
int _EXFUN(nanosleep, (const struct timespec *rqtp, struct timespec *rmtp));
#ifdef __cplusplus
}
#endif
#endif /* __CYGWIN__ */
#endif /* _POSIX_TIMERS */
#ifdef __cplusplus
extern "C" {
#endif
/* CPU-time Clock Attributes, P1003.4b/D8, p. 54 */
/* values for the clock enable attribute */
#define CLOCK_ENABLED 1 /* clock is enabled, i.e. counting execution time */
#define CLOCK_DISABLED 0 /* clock is disabled */
/* values for the pthread cputime_clock_allowed attribute */
#define CLOCK_ALLOWED 1 /* If a thread is created with this value a */
/* CPU-time clock attached to that thread */
/* shall be accessible. */
#define CLOCK_DISALLOWED 0 /* If a thread is created with this value, the */
/* thread shall not have a CPU-time clock */
/* accessible. */
/* Manifest Constants, P1003.1b-1993, p. 262 */
#define CLOCK_REALTIME (clockid_t)1
/* Flag indicating time is "absolute" with respect to the clock
associated with a time. */
#define TIMER_ABSTIME 4
#ifdef __CYGWIN__
# define TIMER_RELTIME 0 /* For compatibility with HP/UX, Solaris,
others? */
#endif
/* Manifest Constants, P1003.4b/D8, p. 55 */
#if defined(_POSIX_CPUTIME)
/* When used in a clock or timer function call, this is interpreted as
the identifier of the CPU_time clock associated with the PROCESS
making the function call. */
#define CLOCK_PROCESS_CPUTIME (clockid_t)2
#endif
#if defined(_POSIX_THREAD_CPUTIME)
/* When used in a clock or timer function call, this is interpreted as
the identifier of the CPU_time clock associated with the THREAD
making the function call. */
#define CLOCK_THREAD_CPUTIME (clockid_t)3
#endif
#if defined(_POSIX_CPUTIME)
/* Accessing a Process CPU-time CLock, P1003.4b/D8, p. 55 */
int _EXFUN(clock_getcpuclockid, (pid_t pid, clockid_t *clock_id));
#endif /* _POSIX_CPUTIME */
#if defined(_POSIX_CPUTIME) || defined(_POSIX_THREAD_CPUTIME)
/* CPU-time Clock Attribute Access, P1003.4b/D8, p. 56 */
int _EXFUN(clock_setenable_attr, (clockid_t clock_id, int attr));
int _EXFUN(clock_getenable_attr, (clockid_t clock_id, int *attr));
#endif /* _POSIX_CPUTIME or _POSIX_THREAD_CPUTIME */
#ifdef __cplusplus
}
#endif
#endif /* _TIME_H_ */