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| author | Rob Pike <r@golang.org> | 2014-10-27 17:08:50 -0700 |
|---|---|---|
| committer | Rob Pike <r@golang.org> | 2014-10-27 17:08:50 -0700 |
| commit | 2eb1b658305bfd32774fd1e6a32cd6463564cf89 (patch) | |
| tree | c90e6e1b4839247993b484600579fad1d683463d /doc/go_mem.html | |
| parent | ccc713c7caa8900facc99bffaad4ee4a22013b01 (diff) | |
| download | go-2eb1b658305bfd32774fd1e6a32cd6463564cf89.tar.gz go-2eb1b658305bfd32774fd1e6a32cd6463564cf89.zip | |
doc/go_mem.html: don't be clever
Add a short introductory section saying what most Go
programmers really need to know, which is that you
shouldn't have to read this document to understand
the behavior of your program.
LGTM=bradfitz, adg, tracey.brendan, iant, rsc, dsymonds
R=golang-codereviews, bradfitz, tracey.brendan, adg, iant, rsc, dsymonds
CC=golang-codereviews
https://golang.org/cl/158500043
Diffstat (limited to 'doc/go_mem.html')
| -rw-r--r-- | doc/go_mem.html | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/doc/go_mem.html b/doc/go_mem.html index 2ea1ded7a3..5dd48ff7fb 100644 --- a/doc/go_mem.html +++ b/doc/go_mem.html @@ -21,6 +21,29 @@ reads of a variable in one goroutine can be guaranteed to observe values produced by writes to the same variable in a different goroutine. </p> + +<h2>Advice</h2> + +<p> +Programs that modify data being simultaneously accessed by multiple goroutines +must serialize such access. +</p> + +<p> +To serialize access, protect the data with channel operations or other synchronization primitives +such as those in the <a href="/pkg/sync/"><code>sync</code></a> +and <a href="/pkg/sync/atomic/"><code>sync/atomic</code></a> packages. +</p> + +<p> +If you must read the rest of this document to understand the behavior of your program, +you are being too clever. +</p> + +<p> +Don't be clever. +</p> + <h2>Happens Before</h2> <p> |