Fixes #4573.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/7322043

On Windows, CryptoAPI is finding an alternative validation path. Since
this is a little non-deterministic, this change disables that test
when using system validation.

R=golang-dev
CC=golang-dev
https://golang.org/cl/7313068

R=golang-dev, minux.ma
CC=golang-dev
https://golang.org/cl/7314071

By default, crypto/x509 assumes that users wish to validate
certificates for ServerAuth. However, due to historical reasons,
COMODO's intermediates don't specify ServerAuth as an allowed key
usage.

Rather NSS and CryptoAPI both allow these SGC OIDs to be equivalent to
ServerAuth.

R=rsc
CC=golang-dev
https://golang.org/cl/7312070

R=golang-dev, agl, bradfitz, rsc
CC=golang-dev
https://golang.org/cl/7299064

R=golang-dev, iant
CC=golang-dev
https://golang.org/cl/7305065

The socket for AF_UNIX domain with SOCK_DGARM type isn't
allowed to work with syscall listen.

R=rsc
CC=golang-dev
https://golang.org/cl/7310068

R=rsc, minux.ma
CC=golang-dev
https://golang.org/cl/7300063

R=golang-dev, rsc
CC=dave, dvyukov, golang-dev, minux.ma, remyoudompheng
https://golang.org/cl/7252047

Add benchmark for request parsing. Fixture data is taken from https://github.com/felixge/node-http-perf

% go version
go version devel +28966b7b2f0c Thu Feb 07 20:26:12 2013 -0800 linux/amd64

% go test -run=nil -bench=ReadRequest -benchtime=10s
PASS
BenchmarkReadRequest     2000000   9900 ns/op   61.71 MB/s   3148 B/op   32 allocs/op
ok      net/http        12.180s

R=golang-dev, bradfitz, minux.ma, haimuiba
CC=golang-dev
https://golang.org/cl/7313048

On POSIX, '=' in key is explicitly invalid, and '\x00' in key/value is implicitly invalid.

R=golang-dev, iant, bradfitz
CC=golang-dev
https://golang.org/cl/7311061

R=golang-dev, adg, bradfitz
CC=golang-dev
https://golang.org/cl/7314046

syscall.{Kill,Write} are not portable to MS Windows, so we
disable them for now.

R=iant, rsc
CC=golang-dev
https://golang.org/cl/7312066

R=gri, iant
CC=golang-dev
https://golang.org/cl/7226065

With the new scheduler races in the tests are reported during execution of other tests.
The change joins goroutines started during the tests.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/7310066

The problem happens when end=0, then end-1 is very big number.
Observed with the new scheduler.

R=golang-dev, iant
CC=golang-dev
https://golang.org/cl/7307073

R=golang-dev, dave, bradfitz
CC=golang-dev
https://golang.org/cl/7300065

R=golang-dev, dave
CC=golang-dev
https://golang.org/cl/7299067

See issue 887 for the 8g analogue.

R=golang-dev, minux.ma
CC=golang-dev
https://golang.org/cl/7306069

R=dave, rsc
CC=golang-dev
https://golang.org/cl/7299055

R=golang-dev, dave, minux.ma, bradfitz, rsc
CC=golang-dev
https://golang.org/cl/7312055

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/7307070

Depends on https://golang.org/cl/7308067

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/7312064

It might be non-blocking, but it also might be blocking.
Cannot take the chance, as Accept might block indefinitely
and make it impossible to acquire ForkLock exclusively
(during fork+exec).

Fixes #4737.

R=golang-dev, dave, iant, mikioh.mikioh
CC=golang-dev
https://golang.org/cl/7309050

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/7309061

Before and after:
BenchmarkTrimSpace  20000000   81.3 ns/op
BenchmarkTrimSpace  50000000   58.0 ns/op

(most whitespace trimming is ASCII whitespace)

Same optimization appeared a handful of other places
in this file, but not here.

R=golang-dev, dave
CC=golang-dev
https://golang.org/cl/7305063

Fixes #887.

R=ken2
CC=golang-dev
https://golang.org/cl/7303061

R=golang-dev, minux.ma, agl
CC=golang-dev
https://golang.org/cl/7305059

R=golang-dev, minux.ma
CC=golang-dev
https://golang.org/cl/7308060

R=golang-dev, dave, bradfitz
CC=golang-dev
https://golang.org/cl/7305053

On 800MHz Cortex-A8:
benchmark           old ns/op    new ns/op    delta
BenchmarkRC4_128         9395         2838  -69.79%
BenchmarkRC4_1K         74497        22120  -70.31%
BenchmarkRC4_8K        587243       171435  -70.81%

benchmark            old MB/s     new MB/s  speedup
BenchmarkRC4_128        13.62        45.09    3.31x
BenchmarkRC4_1K         13.75        46.29    3.37x
BenchmarkRC4_8K         13.79        47.22    3.42x

Result for "OpenSSL 1.0.1c 10 May 2012" from Debian/armhf sid:
type             16 bytes     64 bytes    256 bytes   1024 bytes   8192 bytes
rc4              39553.81k    46522.39k    49336.11k    50085.63k    50258.06k

R=golang-dev, agl, dave
CC=golang-dev
https://golang.org/cl/7310051

This is necessary for systems that use select as the pollster,
such as Solaris (supported by gccgo).  It corresponds to the
bool returned by AddFD.  In general it's not clearly defined
what happens when a descriptor used in a select is closed, and
different systems behave differently.  Waking up the select
will cause the right thing to happen: the closed descriptor
will be dropped from the next iteration.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/7303056

deferred block. This makes hangs in the waiting code less likely
if a goroutine exits abnormally.

R=golang-dev, minux.ma
CC=golang-dev
https://golang.org/cl/7306052

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/7311053

R=rsc, iant, mikioh.mikioh
CC=golang-dev
https://golang.org/cl/7300047

This CL is the first of a handful of CLs which will provide
the implementation of cookiejar. It contains several helper
functions and the skeleton of Cookies and SetCookies.

Proper host name handling requires the ToASCII transformation
from package idna which currently lives in the go.net
subrepo. This CL thus contains just a TODO for this issue.

R=nigeltao, rsc, bradfitz
CC=golang-dev
https://golang.org/cl/7287046

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/7304053

Removes limit on maximum number of goroutines ever existed.
code.google.com/p/goexecutor tests now pass successfully.
Also slightly improves performance.
Before: $ time ./flate.test -test.short
real	0m9.314s
After:  $ time ./flate.test -test.short
real	0m8.958s
Fixes #4286.
The runtime is built from llvm rev 174312.

R=rsc
CC=golang-dev
https://golang.org/cl/7218044

Implements deferred connections + single-attempt automatic
retry. Based on CL 5078042 from kuroneko.

Fixes #2264.

R=mikioh.mikioh, rsc, bradfitz
CC=golang-dev
https://golang.org/cl/6782140

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/7289047