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Keith Randall e3c7ffcd95 os: reset dirinfo when seeking on Darwin
The first Readdirnames calls opendir and caches the result.
The behavior of that cached opendir result isn't specified on a seek
of the underlying fd. Free the opendir result on a seek so that
we'll allocate a new one the next time around.

Also fix wasm behavior in this regard, so that a seek to the
file start resets the Readdirnames position, regardless of platform.

p.s. I hate the Readdirnames API.

Fixes #35767.

Change-Id: Ieffb61b3c5cdd42591f69ab13f932003966f2297
Reviewed-on: https://go-review.googlesource.com/c/go/+/209961
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Emmanuel Odeke <emm.odeke@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2019-12-05 20:40:38 +00:00
.github .github: don't render author-facing text in ISSUE_TEMPLATE 2018-11-02 04:47:34 +00:00
api unicode: upgrade to Unicode 12 2019-11-05 14:34:56 +00:00
doc doc: add CherryPickApproved filter to Release History links 2019-12-05 19:53:44 +00:00
lib/time lib/time: update tz data to 2019c 2019-11-26 12:03:08 +00:00
misc misc/cgo/testshared: do not write to GOROOT 2019-11-25 17:05:01 +00:00
src os: reset dirinfo when seeking on Darwin 2019-12-05 20:40:38 +00:00
test os: reset dirinfo when seeking on Darwin 2019-12-05 20:40:38 +00:00
.gitattributes .gitattributes: prevent all magic line ending changes 2014-12-12 23:14:54 +00:00
.gitignore .gitignore: ignore src/cmd/dist/dist 2017-10-28 21:55:49 +00:00
AUTHORS A+C: change email address for Akhil Indurti 2019-09-09 15:30:38 +00:00
CONTRIBUTING.md all: restore changes from faulty merge/revert 2018-02-12 20:13:59 +00:00
CONTRIBUTORS C: update email address for utkarsh-extc 2019-10-03 12:39:06 +00:00
LICENSE doc: revert copyright date to 2009 2016-06-01 22:40:04 +00:00
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SECURITY.md SECURITY.md: update go versions 2019-09-26 15:34:57 +00:00
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README.md

The Go Programming Language

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