doc: add note about missing lock in sample code

The sample code in 'Interfaces and methods' section contains a
data race. Handlers are served concurrently. The handler does write
and read operations; `go test -race` would fail (with concurrent
requests). Since the doc is frozen and the code remains less
cluttered without locks/atomic, don't change the sample code.

Change-Id: I654b324d2f0b7f48497822751907c7d39e2f0e3d
Reviewed-by: Rob Pike <>
1 file changed
tree: f791724eb24d264ed80c2cdb9e231dfc1acd841d
  1. .gitattributes
  2. .github/
  3. .gitignore
  11. api/
  12. doc/
  13. favicon.ico
  14. lib/
  15. misc/
  16. robots.txt
  17. src/
  18. test/

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