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/*
* sys/time.h
*/
#ifndef _SYS_TIME_H
#define _SYS_TIME_H
#include <klibc/extern.h>
#include <klibc/endian.h>
#include <stddef.h>
#include <sys/types.h>
/* struct timespec as used by current kernel UAPI (time64 on 32-bit) */
struct timespec {
__kernel_time64_t tv_sec;
#if __BYTE_ORDER == __BIG_ENDIAN && __BITS_PER_LONG == 32
int :32;
#endif
long tv_nsec;
#if __BYTE_ORDER == __LITTLE_ENDIAN && __BITS_PER_LONG == 32
int :32;
#endif
};
/* struct timeval with 64-bit time, not used by kernel UAPI */
struct timeval {
__kernel_time64_t tv_sec;
__kernel_suseconds_t tv_usec;
};
/* struct timeval as used by old kernel UAPI */
struct timeval_old {
__kernel_time_t tv_sec;
__kernel_suseconds_t tv_usec;
};
struct itimerspec {
struct timespec it_interval;
struct timespec it_value;
};
struct itimerval {
struct timeval_old it_interval;
struct timeval_old it_value;
};
struct timezone {
int tz_minuteswest;
int tz_dsttime;
};
#define ITIMER_REAL 0
#define ITIMER_VIRTUAL 1
#define ITIMER_PROF 2
#define CLOCK_REALTIME 0
#define CLOCK_MONOTONIC 1
#define CLOCK_PROCESS_CPUTIME_ID 2
#define CLOCK_THREAD_CPUTIME_ID 3
#define CLOCK_MONOTONIC_RAW 4
#define CLOCK_REALTIME_COARSE 5
#define CLOCK_MONOTONIC_COARSE 6
#define CLOCK_BOOTTIME 7
#define CLOCK_REALTIME_ALARM 8
#define CLOCK_BOOTTIME_ALARM 9
#define CLOCK_TAI 11
#define TIMER_ABSTIME 0x01
/* The 2.6.20 Linux headers always #define FD_ZERO __FD_ZERO, etc, in
<linux/time.h> but not all architectures define the
double-underscore ones, except __NFDBITS, __FD_SETSIZE and
__FDSET_LONGS which are defined in <linux/posix_types.h>.
Unfortunately, some architectures define the double-underscore ones
as inlines, so we can't use a simple #ifdef test. Thus, the only
safe option remaining is to #undef the top-level macros. */
#undef FD_ZERO
#undef FD_SET
#undef FD_CLR
#undef FD_ISSET
#undef FD_SETSIZE
__extern void *memset(void *, int, size_t);
static inline void FD_ZERO(fd_set *__fdsetp)
{
memset(__fdsetp, 0, sizeof(fd_set));
}
static inline void FD_SET(int __fd, fd_set *__fdsetp)
{
__fdsetp->fds_bits[__fd/BITS_PER_LONG] |=
(1UL << (__fd % BITS_PER_LONG));
}
static inline void FD_CLR(int __fd, fd_set *__fdsetp)
{
__fdsetp->fds_bits[__fd/BITS_PER_LONG] &=
~(1UL << (__fd % BITS_PER_LONG));
}
static inline int FD_ISSET(int __fd, fd_set *__fdsetp)
{
return (__fdsetp->fds_bits[__fd/BITS_PER_LONG] >>
(__fd % BITS_PER_LONG)) & 1;
}
#define FD_SETSIZE __FD_SETSIZE
__extern int gettimeofday(struct timeval *, struct timezone *);
__extern int settimeofday(const struct timeval *, const struct timezone *);
__extern int clock_gettime(clockid_t, struct timespec *);
__extern int clock_settime(clockid_t, const struct timespec *);
__extern int clock_nanosleep(clockid_t, int, const struct timespec *, struct timespec *);
__extern int getitimer(int, struct itimerval *);
__extern int setitimer(int, const struct itimerval *, struct itimerval *);
__extern int utimes(const char *, const struct timeval[2]);
#endif /* _SYS_TIME_H */
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