| // Copyright 2009 The Go Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| |
| package syscall |
| |
| func Getpagesize() int { return 0x1000 } |
| |
| func nanotime() (nsec int64, err error) { |
| // TODO(paulzhol): |
| // avoid reopening a file descriptor for /dev/bintime on each call, |
| // use lower-level calls to avoid allocation. |
| |
| var b [8]byte |
| nsec = -1 |
| |
| fd, err := Open("/dev/bintime", O_RDONLY) |
| if err != nil { |
| return |
| } |
| defer Close(fd) |
| |
| if _, err = Pread(fd, b[:], 0); err != nil { |
| return |
| } |
| |
| if nsec, err = DecodeBintime(b[:]); err != nil { |
| return -1, err |
| } |
| |
| return |
| } |
