github.com/varialus/godfly@v0.0.0-20130904042352-1934f9f095ab/src/pkg/syscall/syscall_plan9_386.go (about) 1 // Copyright 2009 The Go Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style 3 // license that can be found in the LICENSE file. 4 5 package syscall 6 7 func Getpagesize() int { return 0x1000 } 8 9 func nanotime() (nsec int64, err error) { 10 // TODO(paulzhol): 11 // avoid reopening a file descriptor for /dev/bintime on each call, 12 // use lower-level calls to avoid allocation. 13 14 var b [8]byte 15 nsec = -1 16 17 fd, err := Open("/dev/bintime", O_RDONLY) 18 if err != nil { 19 return 20 } 21 defer Close(fd) 22 23 if _, err = Pread(fd, b[:], 0); err != nil { 24 return 25 } 26 27 if nsec, err = DecodeBintime(b[:]); err != nil { 28 return -1, err 29 } 30 31 return 32 }