github.com/scaleft/monotime@v0.0.0-20180209174256-2da272f3dad0/clock_clock_gettime.go (about) 1 // +build netbsd freebsd solaris 2 // +build !go1.9 3 4 package monotime 5 6 import ( 7 "syscall" 8 "time" 9 "unsafe" 10 ) 11 12 func monotime() Monotime { 13 var ts syscall.Timespec 14 15 syscall.Syscall(syscall.SYS_CLOCK_GETTIME, clock_monotonic, uintptr(unsafe.Pointer(&ts)), 0) 16 17 return uint64(ts.Nano()) 18 } 19 20 func duration(start Monotime, end Monotime) time.Duration { 21 return time.Duration(end - start) 22 }