#ifndef _SYS_TIMEX_H
#define _SYS_TIMEX_H

#ifdef __cplusplus
extern "C" {
#endif

#define __NEED_clockid_t

#include <bits/alltypes.h>

#include <sys/time.h>

struct ntptimeval {
  struct timeval time;
  long maxerror, esterror;
};

struct timex {
  unsigned modes;
  long offset, freq, maxerror, esterror;
  int status;
  long constant, precision, tolerance;
  struct timeval time;
  long tick, ppsfreq, jitter;
  int shift;
  long stabil, jitcnt, calcnt, errcnt, stbcnt;
  int tai;
  int __padding[11];
};

#define ADJ_OFFSET 0x0001
#define ADJ_FREQUENCY 0x0002
#define ADJ_MAXERROR 0x0004
#define ADJ_ESTERROR 0x0008
#define ADJ_STATUS 0x0010
#define ADJ_TIMECONST 0x0020
#define ADJ_TAI 0x0080
#define ADJ_SETOFFSET 0x0100
#define ADJ_MICRO 0x1000
#define ADJ_NANO 0x2000
#define ADJ_TICK 0x4000
#define ADJ_OFFSET_SINGLESHOT 0x8001
#define ADJ_OFFSET_SS_READ 0xa001

#define MOD_OFFSET ADJ_OFFSET
#define MOD_FREQUENCY ADJ_FREQUENCY
#define MOD_MAXERROR ADJ_MAXERROR
#define MOD_ESTERROR ADJ_ESTERROR
#define MOD_STATUS ADJ_STATUS
#define MOD_TIMECONST ADJ_TIMECONST
#define MOD_CLKB ADJ_TICK
#define MOD_CLKA ADJ_OFFSET_SINGLESHOT
#define MOD_TAI ADJ_TAI
#define MOD_MICRO ADJ_MICRO
#define MOD_NANO ADJ_NANO

#define STA_PLL 0x0001
#define STA_PPSFREQ 0x0002
#define STA_PPSTIME 0x0004
#define STA_FLL 0x0008

#define STA_INS 0x0010
#define STA_DEL 0x0020
#define STA_UNSYNC 0x0040
#define STA_FREQHOLD 0x0080

#define STA_PPSSIGNAL 0x0100
#define STA_PPSJITTER 0x0200
#define STA_PPSWANDER 0x0400
#define STA_PPSERROR 0x0800

#define STA_CLOCKERR 0x1000
#define STA_NANO 0x2000
#define STA_MODE 0x4000
#define STA_CLK 0x8000

#define STA_RONLY                                                 \
  (STA_PPSSIGNAL | STA_PPSJITTER | STA_PPSWANDER | STA_PPSERROR | \
   STA_CLOCKERR | STA_NANO | STA_MODE | STA_CLK)

#define TIME_OK 0
#define TIME_INS 1
#define TIME_DEL 2
#define TIME_OOP 3
#define TIME_WAIT 4
#define TIME_ERROR 5
#define TIME_BAD TIME_ERROR

#define MAXTC 6

int adjtimex(struct timex*);
int clock_adjtime(clockid_t, struct timex*);

#ifdef __cplusplus
}
#endif

#endif