1
0
mirror of https://github.com/golang/go synced 2024-11-23 02:10:03 -07:00
The Go programming language
Go to file
Aram Hăvărneanu 199e703083 runtime: fix use after close race in Solaris network poller
The Solaris network poller uses event ports, which are
level-triggered. As such, it has to re-arm itself after each
wakeup. The arming mechanism (which runs in its own thread) raced
with the closing of a file descriptor happening in a different
thread. When a network file descriptor is about to be closed,
the network poller is awaken to give it a chance to remove its
association with the file descriptor. Because the poller always
re-armed itself, it raced with code that closed the descriptor.

This change makes the network poller check before re-arming if
the file descriptor is about to be closed, in which case it will
ignore the re-arming request. It uses the per-PollDesc lock in
order to serialize access to the PollDesc.

This change also adds extensive documentation describing the
Solaris implementation of the network poller.

Fixes #7410.

LGTM=dvyukov, iant
R=golang-codereviews, bradfitz, iant, dvyukov, aram.h, gobot
CC=golang-codereviews
https://golang.org/cl/69190044
2014-03-14 17:53:05 +04:00
api api: update next.txt 2014-03-06 01:44:04 -05:00
doc doc: update go1.3.txt for some performance changes 2014-03-13 19:03:41 +04:00
include cmd/ld: clear unused ctxt before morestack 2014-03-04 13:53:08 -05:00
lib codereview: remove unused upload_options.revision 2014-02-24 10:11:37 -05:00
misc misc/emacs: correctly fontify methods when go-fontify-function-calls is nil 2014-03-12 11:02:42 -04:00
src runtime: fix use after close race in Solaris network poller 2014-03-14 17:53:05 +04:00
test cmd/gc: fix spurious type errors in walkselect. 2014-03-13 08:14:05 +01:00
.hgignore lib9: enable on Plan 9 2014-02-13 20:06:41 +01:00
.hgtags tag go1.2.1 2014-03-03 13:22:13 +11:00
AUTHORS A+C: Dhiru Kholia (individual CLA) 2014-03-10 15:59:38 -07:00
CONTRIBUTORS C: add Kay Zhu (Google CLA) 2014-03-11 11:50:56 -07:00
favicon.ico godoc: update favicon 2012-10-11 17:02:36 +11:00
LICENSE doc: update licensing text one more time 2012-03-27 15:09:13 +11:00
PATENTS
README README: Fix installation instructions 2013-11-20 13:47:37 -08:00
robots.txt godoc: serve robots.txt raw 2011-02-19 05:46:20 +11:00

This is the source code repository for the Go programming language.  

For documentation about how to install and use Go,
visit http://golang.org/ or load doc/install-source.html
in your web browser.

After installing Go, you can view a nicely formatted
doc/install-source.html by running godoc --http=:6060
and then visiting http://localhost:6060/doc/install/source.

Unless otherwise noted, the Go source files are distributed
under the BSD-style license found in the LICENSE file.

--

Binary Distribution Notes

If you have just untarred a binary Go distribution, you need to set
the environment variable $GOROOT to the full path of the go
directory (the one containing this README).  You can omit the
variable if you unpack it into /usr/local/go, or if you rebuild
from sources by running all.bash (see doc/install.html).
You should also add the Go binary directory $GOROOT/bin
to your shell's path.

For example, if you extracted the tar file into $HOME/go, you might
put the following in your .profile:

    export GOROOT=$HOME/go
    export PATH=$PATH:$GOROOT/bin

See doc/install.html for more details.