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Alan Donovan 17ba830f46 go/token: use fine-grained locking in FileSet 
Before, all accesses to the lines and infos tables of each File were
serialized by the lock of the owning FileSet, causing parsers running
in parallel to contend.  Now, each File has its own mutex.

This fixes a data race in (*File).PositionFor, which used to call
f.position then f.unpack without holding the mutex's lock.

Fixes golang/go#18348

Change-Id: Iaa5989b2eba88a7fb2e91c1a0a8bc1e7f6497f2b
Reviewed-on: https://go-review.googlesource.com/34591
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2017-06-14 06:05:05 +00:00
.github doc: improve issue template and contribution guidelines 2017-02-11 20:42:06 +00:00
api api: update next.txt 2017-05-02 19:34:49 +00:00
doc doc: add more Go 1.9 notes 2017-06-14 05:49:46 +00:00
lib/time time: vendor tzdata-2017b and update test 2017-06-07 21:23:58 +00:00
misc go/build: make -I/-L options in cgo flags absolute 2017-06-13 18:36:04 +00:00
src go/token: use fine-grained locking in FileSet 2017-06-14 06:05:05 +00:00
test cmd/compile: don't use ."" as a pkg prefix 2017-06-09 16:13:52 +00:00
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.gitignore .gitignore: change path to zbootstrap.go 2017-04-19 02:13:58 +00:00
AUTHORS A+C: automated update 2016-12-21 03:22:22 +00:00
CONTRIBUTING.md doc: improve issue template and contribution guidelines 2017-02-11 20:42:06 +00:00
CONTRIBUTORS C: add Filippo Valsorda's cloudflare.com email (Cloudflare CLA) 2017-06-02 20:41:51 +00:00
favicon.ico website: recreate 16px and 32px favicon 2016-08-25 15:43:32 +00:00
LICENSE doc: revert copyright date to 2009 2016-06-01 22:40:04 +00:00
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README.md readme: add attribution for the Gopher image 2017-02-03 19:39:41 +00:00
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README.md

The Go Programming Language

Go is an open source programming language that makes it easy to build simple, reliable, and efficient software.

Gopher image Gopher image by Renee French, licensed under Creative Commons 3.0 Attributions license.

Our canonical Git repository is located at https://go.googlesource.com/go. There is a mirror of the repository at https://github.com/golang/go.

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

Download and Install

Binary Distributions

Official binary distributions are available at https://golang.org/dl/.

After downloading a binary release, visit https://golang.org/doc/install or load doc/install.html in your web browser for installation instructions.

Install From Source

If a binary distribution is not available for your combination of operating system and architecture, visit https://golang.org/doc/install/source or load doc/install-source.html in your web browser for source installation instructions.

Contributing

Go is the work of hundreds of contributors. We appreciate your help!

To contribute, please read the contribution guidelines: https://golang.org/doc/contribute.html

Note that the Go project does not use GitHub pull requests, and that we use the issue tracker for bug reports and proposals only. See https://golang.org/wiki/Questions for a list of places to ask questions about the Go language.