58 lines
1.2 KiB
V
58 lines
1.2 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
|
|
|
|
struct C.tm {
|
|
tm_year int
|
|
tm_mon int
|
|
tm_mday int
|
|
tm_hour int
|
|
tm_min int
|
|
tm_sec int
|
|
}
|
|
|
|
fn C.timegm(&tm) time_t
|
|
|
|
fn make_unix_time(t C.tm) int {
|
|
return int(C.timegm(&t))
|
|
}
|
|
|
|
type time_t voidptr
|
|
|
|
// in most systems, these are __quad_t, which is an i64
|
|
struct C.timespec {
|
|
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)
|
|
|
|
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 {
|
|
$if macos {
|
|
tm := C.mach_absolute_time()
|
|
if time_base.denom == 0 {
|
|
C.mach_timebase_info(&time_base)
|
|
}
|
|
return (tm - start_time) * time_base.numer / time_base.denom
|
|
} $else {
|
|
ts := C.timespec{}
|
|
C.clock_gettime(C.CLOCK_MONOTONIC, &ts)
|
|
return u64(ts.tv_sec) * 1_000_000_000 + u64(ts.tv_nsec)
|
|
}
|
|
}
|