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v/vlib/time/time_nix.c.v
2020-07-15 10:22:33 +02:00

106 lines
2.0 KiB
V

// Copyright (c) 2019-2020 Alexander Medvednikov. All rights reserved.
// Use of this source code is governed by an MIT license
// that can be found in the LICENSE file.
module time
#include <time.h>
struct C.tm {
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 int
}
fn C.timegm(&tm) time_t
fn C.localtime_r(t &C.time_t, tm &C.tm )
fn make_unix_time(t C.tm) int {
return int(C.timegm(&t))
}
fn to_local_time(t Time) Time {
loc_tm := C.tm{}
C.localtime_r(time_t(&t.unix), &loc_tm)
return convert_ctime(loc_tm, t.microsecond)
}
type time_t voidptr
// in most systems, these are __quad_t, which is an i64
struct C.timespec {
mut:
tv_sec i64
tv_nsec i64
}
// the first arg is defined in include/bits/types.h as `__S32_TYPE`, which is `int`
fn C.clock_gettime(int, &C.timespec)
pub fn sys_mono_now() u64 {
$if macos {
return sys_mono_now_darwin()
} $else {
ts := C.timespec{}
C.clock_gettime(C.CLOCK_MONOTONIC, &ts)
return u64(ts.tv_sec) * 1_000_000_000 + u64(ts.tv_nsec)
}
}
// NB: vpc_now is used by `v -profile` .
// It should NOT call *any other v function*, just C functions and casts.
[inline]
fn vpc_now() u64 {
ts := C.timespec{}
C.clock_gettime(C.CLOCK_MONOTONIC, &ts)
return u64(ts.tv_sec) * 1_000_000_000 + u64(ts.tv_nsec)
}
// dummy to compile with all compilers
pub fn win_now() Time {
return Time{}
}
// dummy to compile with all compilers
pub fn win_utc() Time {
return Time{}
}
// dummy to compile with all compilers
pub struct C.timeval {
tv_sec u64
tv_usec u64
}
// return absolute timespec for now()+d
pub fn (d Duration) timespec() C.timespec {
mut ts := C.timespec{}
C.clock_gettime(C.CLOCK_REALTIME, &ts)
d_sec := d / second
d_nsec := d % second
ts.tv_sec += d_sec
ts.tv_nsec += d_nsec
if ts.tv_nsec > second {
ts.tv_nsec -= second
ts.tv_sec++
}
return ts
}
// return timespec of 1970/1/1
pub fn zero_timespec() C.timespec {
ts := C.timespec{
tv_sec: 0
tv_nsec: 0
}
return ts
}