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doc: mention os/exec StdinPipe change in Go 1.2 doc

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Fixes #6439.

R=r, minux.ma
CC=golang-dev
https://golang.org/cl/13478045
This commit is contained in:
Andrew Gerrand 2013-09-23 15:14:26 +10:00
parent 4977f9f926
commit d851c6d478
1 changed files with 11 additions and 0 deletions
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doc/go1.2.html
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@ -823,6 +823,17 @@ are absorbed by the
and the client receives an empty body as required by the HTTP specification.
</li>
<li>
The <a href="/pkg/os/exec/"><code>os/exec</code></a> package's
<a href="/pkg/os/exec/#Cmd.StdinPipe"><code>Cmd.StdinPipe</code></a> method
returns an <code>io.WriteCloser</code>, but has changed its concrete
implementation from <code>*os.File</code> to an unexported type that embeds
<code>*os.File</code>, and it is now safe to close the returned value.
Before Go 1.2, there was an unavoidable race that this change fixes.
Code that needs access to the methods of <code>*os.File</code> can use an
interface type assertion, such as <code>wc.(interface{ Sync() error })</code>.
</li>
<li>
The <a href="/pkg/runtime/"><code>runtime</code></a> package relaxes
the constraints on finalizer functions in