diff --git a/unix/syscall_darwin_386.go b/unix/syscall_darwin_386.go index 0426968b..8d98675a 100644 --- a/unix/syscall_darwin_386.go +++ b/unix/syscall_darwin_386.go @@ -11,17 +11,12 @@ import ( "unsafe" ) -func NsecToTimespec(nsec int64) (ts Timespec) { - ts.Sec = int32(nsec / 1e9) - ts.Nsec = int32(nsec % 1e9) - return +func setTimespec(sec, nsec int64) Timespec { + return Timespec{Sec: int32(sec), Nsec: int32(nsec)} } -func NsecToTimeval(nsec int64) (tv Timeval) { - nsec += 999 // round up to microsecond - tv.Usec = int32(nsec % 1e9 / 1e3) - tv.Sec = int32(nsec / 1e9) - return +func setTimeval(sec, usec int64) Timeval { + return Timeval{Sec: int32(sec), Usec: int32(usec)} } //sysnb gettimeofday(tp *Timeval) (sec int32, usec int32, err error) diff --git a/unix/syscall_darwin_amd64.go b/unix/syscall_darwin_amd64.go index f8c6dde6..fe2bdb3d 100644 --- a/unix/syscall_darwin_amd64.go +++ b/unix/syscall_darwin_amd64.go @@ -11,17 +11,12 @@ import ( "unsafe" ) -func NsecToTimespec(nsec int64) (ts Timespec) { - ts.Sec = nsec / 1e9 - ts.Nsec = nsec % 1e9 - return +func setTimespec(sec, nsec int64) Timespec { + return Timespec{Sec: sec, Nsec: nsec} } -func NsecToTimeval(nsec int64) (tv Timeval) { - nsec += 999 // round up to microsecond - tv.Usec = int32(nsec % 1e9 / 1e3) - tv.Sec = int64(nsec / 1e9) - return +func setTimeval(sec, usec int64) Timeval { + return Timeval{Sec: sec, Usec: int32(usec)} } //sysnb gettimeofday(tp *Timeval) (sec int64, usec int32, err error) diff --git a/unix/syscall_darwin_arm.go b/unix/syscall_darwin_arm.go index 5f68319f..d6d55739 100644 --- a/unix/syscall_darwin_arm.go +++ b/unix/syscall_darwin_arm.go @@ -9,17 +9,12 @@ import ( "unsafe" ) -func NsecToTimespec(nsec int64) (ts Timespec) { - ts.Sec = int32(nsec / 1e9) - ts.Nsec = int32(nsec % 1e9) - return +func setTimespec(sec, nsec int64) Timespec { + return Timespec{Sec: int32(sec), Nsec: int32(nsec)} } -func NsecToTimeval(nsec int64) (tv Timeval) { - nsec += 999 // round up to microsecond - tv.Usec = int32(nsec % 1e9 / 1e3) - tv.Sec = int32(nsec / 1e9) - return +func setTimeval(sec, usec int64) Timeval { + return Timeval{Sec: int32(sec), Usec: int32(usec)} } //sysnb gettimeofday(tp *Timeval) (sec int32, usec int32, err error) diff --git a/unix/syscall_darwin_arm64.go b/unix/syscall_darwin_arm64.go index ca81410f..2ab03d1f 100644 --- a/unix/syscall_darwin_arm64.go +++ b/unix/syscall_darwin_arm64.go @@ -11,17 +11,12 @@ import ( "unsafe" ) -func NsecToTimespec(nsec int64) (ts Timespec) { - ts.Sec = nsec / 1e9 - ts.Nsec = nsec % 1e9 - return +func setTimespec(sec, nsec int64) Timespec { + return Timespec{Sec: sec, Nsec: nsec} } -func NsecToTimeval(nsec int64) (tv Timeval) { - nsec += 999 // round up to microsecond - tv.Usec = int32(nsec % 1e9 / 1e3) - tv.Sec = int64(nsec / 1e9) - return +func setTimeval(sec, usec int64) Timeval { + return Timeval{Sec: sec, Usec: int32(usec)} } //sysnb gettimeofday(tp *Timeval) (sec int64, usec int32, err error) diff --git a/unix/syscall_dragonfly_amd64.go b/unix/syscall_dragonfly_amd64.go index 6f224fd4..9babb31e 100644 --- a/unix/syscall_dragonfly_amd64.go +++ b/unix/syscall_dragonfly_amd64.go @@ -11,17 +11,12 @@ import ( "unsafe" ) -func NsecToTimespec(nsec int64) (ts Timespec) { - ts.Sec = nsec / 1e9 - ts.Nsec = nsec % 1e9 - return +func setTimespec(sec, nsec int64) Timespec { + return Timespec{Sec: sec, Nsec: nsec} } -func NsecToTimeval(nsec int64) (tv Timeval) { - nsec += 999 // round up to microsecond - tv.Usec = nsec % 1e9 / 1e3 - tv.Sec = int64(nsec / 1e9) - return +func setTimeval(sec, usec int64) Timeval { + return Timeval{Sec: sec, Usec: usec} } func SetKevent(k *Kevent_t, fd, mode, flags int) { diff --git a/unix/syscall_freebsd_386.go b/unix/syscall_freebsd_386.go index 5c373ab4..21e03958 100644 --- a/unix/syscall_freebsd_386.go +++ b/unix/syscall_freebsd_386.go @@ -11,17 +11,12 @@ import ( "unsafe" ) -func NsecToTimespec(nsec int64) (ts Timespec) { - ts.Sec = int32(nsec / 1e9) - ts.Nsec = int32(nsec % 1e9) - return +func setTimespec(sec, nsec int64) Timespec { + return Timespec{Sec: int32(sec), Nsec: int32(nsec)} } -func NsecToTimeval(nsec int64) (tv Timeval) { - nsec += 999 // round up to microsecond - tv.Usec = int32(nsec % 1e9 / 1e3) - tv.Sec = int32(nsec / 1e9) - return +func setTimeval(sec, usec int64) Timeval { + return Timeval{Sec: int32(sec), Usec: int32(usec)} } func SetKevent(k *Kevent_t, fd, mode, flags int) { diff --git a/unix/syscall_freebsd_amd64.go b/unix/syscall_freebsd_amd64.go index b511dbe8..9c945a65 100644 --- a/unix/syscall_freebsd_amd64.go +++ b/unix/syscall_freebsd_amd64.go @@ -11,17 +11,12 @@ import ( "unsafe" ) -func NsecToTimespec(nsec int64) (ts Timespec) { - ts.Sec = nsec / 1e9 - ts.Nsec = nsec % 1e9 - return +func setTimespec(sec, nsec int64) Timespec { + return Timespec{Sec: sec, Nsec: nsec} } -func NsecToTimeval(nsec int64) (tv Timeval) { - nsec += 999 // round up to microsecond - tv.Usec = nsec % 1e9 / 1e3 - tv.Sec = int64(nsec / 1e9) - return +func setTimeval(sec, usec int64) Timeval { + return Timeval{Sec: sec, Usec: usec} } func SetKevent(k *Kevent_t, fd, mode, flags int) { diff --git a/unix/syscall_freebsd_arm.go b/unix/syscall_freebsd_arm.go index 6e25394d..5cd6243f 100644 --- a/unix/syscall_freebsd_arm.go +++ b/unix/syscall_freebsd_arm.go @@ -11,17 +11,12 @@ import ( "unsafe" ) -func NsecToTimespec(nsec int64) (ts Timespec) { - ts.Sec = nsec / 1e9 - ts.Nsec = int32(nsec % 1e9) - return +func setTimespec(sec, nsec int64) Timespec { + return Timespec{Sec: sec, Nsec: int32(nsec)} } -func NsecToTimeval(nsec int64) (tv Timeval) { - nsec += 999 // round up to microsecond - tv.Usec = int32(nsec % 1e9 / 1e3) - tv.Sec = nsec / 1e9 - return +func setTimeval(sec, usec int64) Timeval { + return Timeval{Sec: sec, Usec: int32(usec)} } func SetKevent(k *Kevent_t, fd, mode, flags int) { diff --git a/unix/syscall_linux_386.go b/unix/syscall_linux_386.go index ba32033e..b4cfe172 100644 --- a/unix/syscall_linux_386.go +++ b/unix/syscall_linux_386.go @@ -14,17 +14,12 @@ import ( "unsafe" ) -func NsecToTimespec(nsec int64) (ts Timespec) { - ts.Sec = int32(nsec / 1e9) - ts.Nsec = int32(nsec % 1e9) - return +func setTimespec(sec, nsec int64) Timespec { + return Timespec{Sec: int32(sec), Nsec: int32(nsec)} } -func NsecToTimeval(nsec int64) (tv Timeval) { - nsec += 999 // round up to microsecond - tv.Sec = int32(nsec / 1e9) - tv.Usec = int32(nsec % 1e9 / 1e3) - return +func setTimeval(sec, usec int64) Timeval { + return Timeval{Sec: int32(sec), Usec: int32(usec)} } //sysnb pipe(p *[2]_C_int) (err error) diff --git a/unix/syscall_linux_amd64.go b/unix/syscall_linux_amd64.go index 13ca1322..3707f6b7 100644 --- a/unix/syscall_linux_amd64.go +++ b/unix/syscall_linux_amd64.go @@ -83,17 +83,12 @@ func Time(t *Time_t) (tt Time_t, err error) { //sys Utime(path string, buf *Utimbuf) (err error) -func NsecToTimespec(nsec int64) (ts Timespec) { - ts.Sec = nsec / 1e9 - ts.Nsec = nsec % 1e9 - return +func setTimespec(sec, nsec int64) Timespec { + return Timespec{Sec: sec, Nsec: nsec} } -func NsecToTimeval(nsec int64) (tv Timeval) { - nsec += 999 // round up to microsecond - tv.Sec = nsec / 1e9 - tv.Usec = nsec % 1e9 / 1e3 - return +func setTimeval(sec, usec int64) Timeval { + return Timeval{Sec: sec, Usec: usec} } //sysnb pipe(p *[2]_C_int) (err error) diff --git a/unix/syscall_linux_arm.go b/unix/syscall_linux_arm.go index c5e4b88a..226be100 100644 --- a/unix/syscall_linux_arm.go +++ b/unix/syscall_linux_arm.go @@ -11,17 +11,12 @@ import ( "unsafe" ) -func NsecToTimespec(nsec int64) (ts Timespec) { - ts.Sec = int32(nsec / 1e9) - ts.Nsec = int32(nsec % 1e9) - return +func setTimespec(sec, nsec int64) Timespec { + return Timespec{Sec: int32(sec), Nsec: int32(nsec)} } -func NsecToTimeval(nsec int64) (tv Timeval) { - nsec += 999 // round up to microsecond - tv.Sec = int32(nsec / 1e9) - tv.Usec = int32(nsec % 1e9 / 1e3) - return +func setTimeval(sec, usec int64) Timeval { + return Timeval{Sec: int32(sec), Usec: int32(usec)} } func Pipe(p []int) (err error) { diff --git a/unix/syscall_linux_arm64.go b/unix/syscall_linux_arm64.go index df961fed..9a8e6e41 100644 --- a/unix/syscall_linux_arm64.go +++ b/unix/syscall_linux_arm64.go @@ -73,17 +73,12 @@ func Lstat(path string, stat *Stat_t) (err error) { //sysnb Gettimeofday(tv *Timeval) (err error) -func NsecToTimespec(nsec int64) (ts Timespec) { - ts.Sec = nsec / 1e9 - ts.Nsec = nsec % 1e9 - return +func setTimespec(sec, nsec int64) Timespec { + return Timespec{Sec: sec, Nsec: nsec} } -func NsecToTimeval(nsec int64) (tv Timeval) { - nsec += 999 // round up to microsecond - tv.Sec = nsec / 1e9 - tv.Usec = nsec % 1e9 / 1e3 - return +func setTimeval(sec, usec int64) Timeval { + return Timeval{Sec: sec, Usec: usec} } func Time(t *Time_t) (Time_t, error) { diff --git a/unix/syscall_linux_mips64x.go b/unix/syscall_linux_mips64x.go index 438fd369..cdda11a9 100644 --- a/unix/syscall_linux_mips64x.go +++ b/unix/syscall_linux_mips64x.go @@ -76,17 +76,12 @@ func Time(t *Time_t) (tt Time_t, err error) { //sys Utime(path string, buf *Utimbuf) (err error) -func NsecToTimespec(nsec int64) (ts Timespec) { - ts.Sec = nsec / 1e9 - ts.Nsec = nsec % 1e9 - return +func setTimespec(sec, nsec int64) Timespec { + return Timespec{Sec: sec, Nsec: nsec} } -func NsecToTimeval(nsec int64) (tv Timeval) { - nsec += 999 // round up to microsecond - tv.Sec = nsec / 1e9 - tv.Usec = nsec % 1e9 / 1e3 - return +func setTimeval(sec, usec int64) Timeval { + return Timeval{Sec: sec, Usec: usec} } func Pipe(p []int) (err error) { diff --git a/unix/syscall_linux_mipsx.go b/unix/syscall_linux_mipsx.go index 0e9f333c..a114ba8c 100644 --- a/unix/syscall_linux_mipsx.go +++ b/unix/syscall_linux_mipsx.go @@ -99,17 +99,12 @@ func Seek(fd int, offset int64, whence int) (off int64, err error) { return } -func NsecToTimespec(nsec int64) (ts Timespec) { - ts.Sec = int32(nsec / 1e9) - ts.Nsec = int32(nsec % 1e9) - return +func setTimespec(sec, nsec int64) Timespec { + return Timespec{Sec: int32(sec), Nsec: int32(nsec)} } -func NsecToTimeval(nsec int64) (tv Timeval) { - nsec += 999 // round up to microsecond - tv.Sec = int32(nsec / 1e9) - tv.Usec = int32(nsec % 1e9 / 1e3) - return +func setTimeval(sec, usec int64) Timeval { + return Timeval{Sec: int32(sec), Usec: int32(usec)} } //sysnb pipe2(p *[2]_C_int, flags int) (err error) diff --git a/unix/syscall_linux_ppc64x.go b/unix/syscall_linux_ppc64x.go index 25f78f93..7cae936c 100644 --- a/unix/syscall_linux_ppc64x.go +++ b/unix/syscall_linux_ppc64x.go @@ -66,17 +66,12 @@ package unix //sys Utime(path string, buf *Utimbuf) (err error) -func NsecToTimespec(nsec int64) (ts Timespec) { - ts.Sec = nsec / 1e9 - ts.Nsec = nsec % 1e9 - return +func setTimespec(sec, nsec int64) Timespec { + return Timespec{Sec: sec, Nsec: nsec} } -func NsecToTimeval(nsec int64) (tv Timeval) { - nsec += 999 // round up to microsecond - tv.Sec = nsec / 1e9 - tv.Usec = nsec % 1e9 / 1e3 - return +func setTimeval(sec, usec int64) Timeval { + return Timeval{Sec: sec, Usec: usec} } func (r *PtraceRegs) PC() uint64 { return r.Nip } diff --git a/unix/syscall_linux_s390x.go b/unix/syscall_linux_s390x.go index 2eb923da..e96a40cb 100644 --- a/unix/syscall_linux_s390x.go +++ b/unix/syscall_linux_s390x.go @@ -62,17 +62,12 @@ func Time(t *Time_t) (tt Time_t, err error) { //sys Utime(path string, buf *Utimbuf) (err error) -func NsecToTimespec(nsec int64) (ts Timespec) { - ts.Sec = nsec / 1e9 - ts.Nsec = nsec % 1e9 - return +func setTimespec(sec, nsec int64) Timespec { + return Timespec{Sec: sec, Nsec: nsec} } -func NsecToTimeval(nsec int64) (tv Timeval) { - nsec += 999 // round up to microsecond - tv.Sec = nsec / 1e9 - tv.Usec = nsec % 1e9 / 1e3 - return +func setTimeval(sec, usec int64) Timeval { + return Timeval{Sec: sec, Usec: usec} } //sysnb pipe2(p *[2]_C_int, flags int) (err error) diff --git a/unix/syscall_linux_sparc64.go b/unix/syscall_linux_sparc64.go index d16b7e59..012a3285 100644 --- a/unix/syscall_linux_sparc64.go +++ b/unix/syscall_linux_sparc64.go @@ -82,17 +82,12 @@ func Time(t *Time_t) (tt Time_t, err error) { //sys Utime(path string, buf *Utimbuf) (err error) -func NsecToTimespec(nsec int64) (ts Timespec) { - ts.Sec = nsec / 1e9 - ts.Nsec = nsec % 1e9 - return +func setTimespec(sec, nsec int64) Timespec { + return Timespec{Sec: sec, Nsec: nsec} } -func NsecToTimeval(nsec int64) (tv Timeval) { - nsec += 999 // round up to microsecond - tv.Sec = nsec / 1e9 - tv.Usec = int32(nsec % 1e9 / 1e3) - return +func setTimeval(sec, usec int64) Timeval { + return Timeval{Sec: sec, Usec: int32(usec)} } func (r *PtraceRegs) PC() uint64 { return r.Tpc } diff --git a/unix/syscall_netbsd_386.go b/unix/syscall_netbsd_386.go index 08e12c34..24f74e58 100644 --- a/unix/syscall_netbsd_386.go +++ b/unix/syscall_netbsd_386.go @@ -6,17 +6,12 @@ package unix -func NsecToTimespec(nsec int64) (ts Timespec) { - ts.Sec = int64(nsec / 1e9) - ts.Nsec = int32(nsec % 1e9) - return +func setTimespec(sec, nsec int64) Timespec { + return Timespec{Sec: sec, Nsec: int32(nsec)} } -func NsecToTimeval(nsec int64) (tv Timeval) { - nsec += 999 // round up to microsecond - tv.Usec = int32(nsec % 1e9 / 1e3) - tv.Sec = int64(nsec / 1e9) - return +func setTimeval(sec, usec int64) Timeval { + return Timeval{Sec: sec, Usec: int32(usec)} } func SetKevent(k *Kevent_t, fd, mode, flags int) { diff --git a/unix/syscall_netbsd_amd64.go b/unix/syscall_netbsd_amd64.go index 2a3a6731..6878bf7f 100644 --- a/unix/syscall_netbsd_amd64.go +++ b/unix/syscall_netbsd_amd64.go @@ -6,17 +6,12 @@ package unix -func NsecToTimespec(nsec int64) (ts Timespec) { - ts.Sec = int64(nsec / 1e9) - ts.Nsec = int64(nsec % 1e9) - return +func setTimespec(sec, nsec int64) Timespec { + return Timespec{Sec: sec, Nsec: nsec} } -func NsecToTimeval(nsec int64) (tv Timeval) { - nsec += 999 // round up to microsecond - tv.Usec = int32(nsec % 1e9 / 1e3) - tv.Sec = int64(nsec / 1e9) - return +func setTimeval(sec, usec int64) Timeval { + return Timeval{Sec: sec, Usec: int32(usec)} } func SetKevent(k *Kevent_t, fd, mode, flags int) { diff --git a/unix/syscall_netbsd_arm.go b/unix/syscall_netbsd_arm.go index 1d73b60e..dbbfcf71 100644 --- a/unix/syscall_netbsd_arm.go +++ b/unix/syscall_netbsd_arm.go @@ -6,17 +6,12 @@ package unix -func NsecToTimespec(nsec int64) (ts Timespec) { - ts.Sec = int64(nsec / 1e9) - ts.Nsec = int32(nsec % 1e9) - return +func setTimespec(sec, nsec int64) Timespec { + return Timespec{Sec: sec, Nsec: int32(nsec)} } -func NsecToTimeval(nsec int64) (tv Timeval) { - nsec += 999 // round up to microsecond - tv.Usec = int32(nsec % 1e9 / 1e3) - tv.Sec = int64(nsec / 1e9) - return +func setTimeval(sec, usec int64) Timeval { + return Timeval{Sec: sec, Usec: int32(usec)} } func SetKevent(k *Kevent_t, fd, mode, flags int) { diff --git a/unix/syscall_openbsd_386.go b/unix/syscall_openbsd_386.go index 82d057ca..994964a9 100644 --- a/unix/syscall_openbsd_386.go +++ b/unix/syscall_openbsd_386.go @@ -6,17 +6,12 @@ package unix -func NsecToTimespec(nsec int64) (ts Timespec) { - ts.Sec = int64(nsec / 1e9) - ts.Nsec = int32(nsec % 1e9) - return +func setTimespec(sec, nsec int64) Timespec { + return Timespec{Sec: sec, Nsec: int32(nsec)} } -func NsecToTimeval(nsec int64) (tv Timeval) { - nsec += 999 // round up to microsecond - tv.Usec = int32(nsec % 1e9 / 1e3) - tv.Sec = int64(nsec / 1e9) - return +func setTimeval(sec, usec int64) Timeval { + return Timeval{Sec: sec, Usec: int32(usec)} } func SetKevent(k *Kevent_t, fd, mode, flags int) { diff --git a/unix/syscall_openbsd_amd64.go b/unix/syscall_openbsd_amd64.go index 3518cab8..649e67fc 100644 --- a/unix/syscall_openbsd_amd64.go +++ b/unix/syscall_openbsd_amd64.go @@ -6,17 +6,12 @@ package unix -func NsecToTimespec(nsec int64) (ts Timespec) { - ts.Sec = nsec / 1e9 - ts.Nsec = nsec % 1e9 - return +func setTimespec(sec, nsec int64) Timespec { + return Timespec{Sec: sec, Nsec: nsec} } -func NsecToTimeval(nsec int64) (tv Timeval) { - nsec += 999 // round up to microsecond - tv.Usec = nsec % 1e9 / 1e3 - tv.Sec = nsec / 1e9 - return +func setTimeval(sec, usec int64) Timeval { + return Timeval{Sec: sec, Usec: usec} } func SetKevent(k *Kevent_t, fd, mode, flags int) { diff --git a/unix/syscall_openbsd_arm.go b/unix/syscall_openbsd_arm.go index ea9db8cd..59844f50 100644 --- a/unix/syscall_openbsd_arm.go +++ b/unix/syscall_openbsd_arm.go @@ -6,17 +6,12 @@ package unix -func NsecToTimespec(nsec int64) (ts Timespec) { - ts.Sec = int64(nsec / 1e9) - ts.Nsec = int32(nsec % 1e9) - return +func setTimespec(sec, nsec int64) Timespec { + return Timespec{Sec: sec, Nsec: int32(nsec)} } -func NsecToTimeval(nsec int64) (tv Timeval) { - nsec += 999 // round up to microsecond - tv.Usec = int32(nsec % 1e9 / 1e3) - tv.Sec = int64(nsec / 1e9) - return +func setTimeval(sec, usec int64) Timeval { + return Timeval{Sec: sec, Usec: int32(usec)} } func SetKevent(k *Kevent_t, fd, mode, flags int) { diff --git a/unix/syscall_solaris_amd64.go b/unix/syscall_solaris_amd64.go index aeae979e..9d4e7a67 100644 --- a/unix/syscall_solaris_amd64.go +++ b/unix/syscall_solaris_amd64.go @@ -6,17 +6,12 @@ package unix -func NsecToTimespec(nsec int64) (ts Timespec) { - ts.Sec = nsec / 1e9 - ts.Nsec = nsec % 1e9 - return +func setTimespec(sec, nsec int64) Timespec { + return Timespec{Sec: sec, Nsec: nsec} } -func NsecToTimeval(nsec int64) (tv Timeval) { - nsec += 999 // round up to microsecond - tv.Usec = nsec % 1e9 / 1e3 - tv.Sec = int64(nsec / 1e9) - return +func setTimeval(sec, usec int64) Timeval { + return Timeval{Sec: sec, Usec: usec} } func (iov *Iovec) SetLen(length int) { diff --git a/unix/timestruct.go b/unix/timestruct.go index 3e218f6e..e4638246 100644 --- a/unix/timestruct.go +++ b/unix/timestruct.go @@ -10,6 +10,31 @@ package unix // nanoseconds since the Unix epoch. func TimespecToNsec(ts Timespec) int64 { return int64(ts.Sec)*1e9 + int64(ts.Nsec) } +// NsecToTimespec takes a number of nanoseconds since the Unix epoch +// and returns the corresponding Timespec value. +func NsecToTimespec(nsec int64) Timespec { + sec := nsec / 1e9 + nsec = nsec % 1e9 + if nsec < 0 { + nsec += 1e9 + sec-- + } + return setTimespec(sec, nsec) +} + // TimevalToNsec converts a Timeval value into a number of nanoseconds // since the Unix epoch. func TimevalToNsec(tv Timeval) int64 { return int64(tv.Sec)*1e9 + int64(tv.Usec)*1e3 } + +// NsecToTimeval takes a number of nanoseconds since the Unix epoch +// and returns the corresponding Timeval value. +func NsecToTimeval(nsec int64) Timeval { + nsec += 999 // round up to microsecond + usec := nsec % 1e9 / 1e3 + sec := nsec / 1e9 + if usec < 0 { + usec += 1e6 + sec-- + } + return setTimeval(sec, usec) +}