unix: add SEEK_* constants on Darwin, FreeBSD, Linux

The Go "os" package already provides bindings for SEEK_CUR, SEEK_SET and
SEEK_END. Most operating systems also support SEEK_HOLE and SEEK_DATA,
which you can use to skip sparse regions in a file. Let's add bindings,
so we can also do this from within Go.

Change-Id: If9243b05a8f563b4bce2452aa4bff145d9442cc2
GitHub-Last-Rev: ac8aed2d4aaddc4a28aab657d027f67ba6717e19
GitHub-Pull-Request: golang/sys#112
Reviewed-on: https://go-review.googlesource.com/c/sys/+/328170
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
8 files changed
tree: 2429eca718a80d8a1fe44d3f0e502335ab0a3709
  1. cpu/
  2. execabs/
  3. internal/
  4. plan9/
  5. unix/
  6. windows/
  7. .gitattributes
  8. .gitignore
  9. AUTHORS
  10. codereview.cfg
  11. CONTRIBUTING.md
  12. CONTRIBUTORS
  13. go.mod
  14. LICENSE
  15. PATENTS
  16. README.md
README.md

sys

Go Reference

This repository holds supplemental Go packages for low-level interactions with the operating system.

Download/Install

The easiest way to install is to run go get -u golang.org/x/sys. You can also manually git clone the repository to $GOPATH/src/golang.org/x/sys.

Report Issues / Send Patches

This repository uses Gerrit for code changes. To learn how to submit changes to this repository, see https://golang.org/doc/contribute.html.

The main issue tracker for the sys repository is located at https://github.com/golang/go/issues. Prefix your issue with “x/sys:” in the subject line, so it is easy to find.