containerd/archive/time.go

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package archive
import (
"syscall"
"time"
"unsafe"
)
var (
minTime = time.Unix(0, 0)
maxTime time.Time
)
func init() {
if unsafe.Sizeof(syscall.Timespec{}.Nsec) == 8 {
// This is a 64 bit timespec
// os.Chtimes limits time to the following
maxTime = time.Unix(0, 1<<63-1)
} else {
// This is a 32 bit timespec
maxTime = time.Unix(1<<31-1, 0)
}
}
func boundTime(t time.Time) time.Time {
if t.Before(minTime) || t.After(maxTime) {
return minTime
}
return t
}
func latestTime(t1, t2 time.Time) time.Time {
if t1.Before(t2) {
return t2
}
return t1
}