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Commit Graph

16368 Commits

Author SHA1 Message Date
David Symonds
c912150761 doc/go_faq: fix example.
R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/9564044
2013-05-22 12:28:58 +10:00
Brad Fitzpatrick
950fa93531 net/http: add another Hijacker test
R=dsymonds
CC=gobot, golang-dev
https://golang.org/cl/9570043
2013-05-21 18:43:28 -07:00
Brad Fitzpatrick
99f6722860 bufio: reuse Writer buffers after Flush
A bufio.Writer.Flush marks the usual end of a Writer's
life. Recycle its internal buffer on those explicit flushes,
but not on normal, as-needed internal flushes.

benchmark               old ns/op    new ns/op    delta
BenchmarkWriterEmpty         1959          727  -62.89%

benchmark              old allocs   new allocs    delta
BenchmarkWriterEmpty            2            1  -50.00%

benchmark               old bytes    new bytes    delta
BenchmarkWriterEmpty         4215           83  -98.03%

R=gri, iant
CC=gobot, golang-dev, voidlogic7
https://golang.org/cl/9459044
2013-05-21 15:51:49 -07:00
Brad Fitzpatrick
ddda7980c5 net/http: don't send Accept-Encoding on HEAD requests
Works around a bug in nginx: http://trac.nginx.org/nginx/ticket/358

Fixes #5522

R=iant
CC=gobot, golang-dev
https://golang.org/cl/9627043
2013-05-21 15:21:30 -07:00
Brad Fitzpatrick
0e10196982 database/sql: remove extra RemoveDep call
This should have been removed in 45c12efb4635. Not a correctness
issue, but unnecessary work.

This CL also adds paranoia checks in removeDep so this doesn't
happen again.

Fixes #5502

R=adg
CC=gobot, golang-dev, google
https://golang.org/cl/9543043
2013-05-21 14:58:08 -07:00
Brad Fitzpatrick
509a1173a3 time: remove Time.FormatAppend
undo CL 8478044 / 0d28fd55e721

Lack of consensus.

««« original CL description
time: add Time.FormatAppend

This is a version of Time.Format that doesn't require allocation.

Fixes #5192
Update #5195

R=r
CC=gobot, golang-dev
https://golang.org/cl/8478044
»»»

R=r
CC=golang-dev
https://golang.org/cl/9462049
2013-05-21 14:32:09 -07:00
Daniel Morsing
6f5af9c0b1 cmd/gc: fix confusing error with broken types and defer/go
Fixes #5172.

R=golang-dev, bradfitz, r
CC=golang-dev
https://golang.org/cl/9614044
2013-05-21 18:35:47 +02:00
Shenghou Ma
bea7b51872 cmd/go: fix LDFLAGS handling, enable misc/cgo/testso on Darwin
Fixes #5479.

R=golang-dev, dave
CC=golang-dev
https://golang.org/cl/9416047
2013-05-22 00:32:03 +08:00
Brad Fitzpatrick
c3294049c3 api: update next.txt
R=minux.ma
CC=golang-dev
https://golang.org/cl/9459047
2013-05-21 09:11:11 -07:00
Brad Fitzpatrick
09395daf2e codereview: add khr as a person
R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/9459046
2013-05-21 09:02:30 -07:00
Adam Langley
8590e1bd3c crypto/tls: don't send NPN extension if NextProtos is not set.
This isn't clearly a bug on Go's part, but it triggers a bug in Firefox
which means that crypto/tls and net/http cannot be wired up together
unless NextProtos includes "http/1.1". When net/http sets up the
tls.Config, it does this and so works fine. But anyone setting up the
tls.Config themselves will hit the Firefox bug.

Fixes #5445.

R=golang-dev, bradfitz, r
CC=golang-dev
https://golang.org/cl/9539045
2013-05-21 10:47:31 -04:00
Shenghou Ma
f5d06da072 cmd/api: add more platforms
as OpenBSD lacks 4 errno constants, api/go1.txt is updated so that
api check won't fail.

R=golang-dev, iant, bradfitz, r
CC=golang-dev
https://golang.org/cl/9149045
2013-05-21 21:47:32 +08:00
Brad Fitzpatrick
c6c439d7a0 net/http: use WriteString directly when possible
Several places used io.WriteString unnecessarily when the
static type already implemented WriteString. No need to
check for it at runtime.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/9608043
2013-05-20 19:26:26 -07:00
Rémy Oudompheng
fc3bec386e cmd/gc: clear n->list of OFOR range loop after walk.
It contains the LHS of the range clause and gets
instrumented by racewalk, but it doesn't have any meaning.

Fixes #5446.

R=golang-dev, dvyukov, daniel.morsing, r
CC=golang-dev
https://golang.org/cl/9560044
2013-05-20 23:45:22 +02:00
Rémy Oudompheng
4b0eb19a05 cmd/gc: eliminate a useless bounds check in inlined append().
R=golang-dev, daniel.morsing, r
CC=golang-dev
https://golang.org/cl/9358043
2013-05-20 23:19:41 +02:00
Robert Griesemer
6a3859f433 spec: removed old or invalid TODOs
Several old TODOs are either resolved now (e.g. when is a return
needed), or are from a time the language wasn't frozen (^ for uints
only). Consolidated the others.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/9599044
2013-05-20 14:01:07 -07:00
Robert Griesemer
bb3a32ef6e spec: fix language about "range" clause
Fixes #5434.

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/9595044
2013-05-20 13:27:53 -07:00
Shenghou Ma
523b3bc434 misc/dashboard/builder: handle Plan 9 in defaultSuffix()
R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/9495045
2013-05-21 03:22:52 +08:00
Adam Langley
b419e2b57c crypto/x509: provide better error messages for X.509 verify failures.
Failures caused by errors like invalid signatures or missing hash
functions cause rather generic, unhelpful error messages because no
trust chain can be constructed: "x509: certificate signed by unknown
authority."

With this change, authority errors may contain the reason why an
arbitary candidate step in the chain was rejected. For example, in the
event of a missing hash function the error looks like:

x509: certificate signed by unknown authority (possibly because of
"crypto/x509: cannot verify signature: algorithm unimplemented" while
trying to verify candidate authority certificate 'Thawte SGC CA')

Fixes 5058.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/9104051
2013-05-20 14:20:26 -04:00
Dmitriy Vyukov
910bd157c9 test: do not run the test that relies on precise GC on 32-bits
Currently most of the 32-bit builder are broken.
Fixes #5516.

R=golang-dev, dave, iant
CC=golang-dev
https://golang.org/cl/9573043
2013-05-20 21:53:16 +04:00
Brad Fitzpatrick
27f7427995 net/http: simplify transfer body; reduces allocations too
benchmark                                   old ns/op    new ns/op    delta
BenchmarkServerFakeConnNoKeepAlive              14431        14247   -1.28%
BenchmarkServerFakeConnWithKeepAlive            11618        11357   -2.25%
BenchmarkServerFakeConnWithKeepAliveLite         6735         6427   -4.57%
BenchmarkServerHandlerTypeLen                    8842         8740   -1.15%
BenchmarkServerHandlerNoLen                      8001         7828   -2.16%
BenchmarkServerHandlerNoType                     8270         8227   -0.52%
BenchmarkServerHandlerNoHeader                   6148         5920   -3.71%

benchmark                                  old allocs   new allocs    delta
BenchmarkServerFakeConnNoKeepAlive                 30           29   -3.33%
BenchmarkServerFakeConnWithKeepAlive               25           24   -4.00%
BenchmarkServerFakeConnWithKeepAliveLite           10            9  -10.00%
BenchmarkServerHandlerTypeLen                      18           17   -5.56%
BenchmarkServerHandlerNoLen                        15           14   -6.67%
BenchmarkServerHandlerNoType                       16           15   -6.25%
BenchmarkServerHandlerNoHeader                     10            9  -10.00%

benchmark                                   old bytes    new bytes    delta
BenchmarkServerFakeConnNoKeepAlive               2557         2492   -2.54%
BenchmarkServerFakeConnWithKeepAlive             2260         2194   -2.92%
BenchmarkServerFakeConnWithKeepAliveLite         1092         1026   -6.04%
BenchmarkServerHandlerTypeLen                    1941         1875   -3.40%
BenchmarkServerHandlerNoLen                      1898         1832   -3.48%
BenchmarkServerHandlerNoType                     1906         1840   -3.46%
BenchmarkServerHandlerNoHeader                   1092         1026   -6.04%

Update #5195

R=golang-dev, daniel.morsing
CC=golang-dev
https://golang.org/cl/9492044
2013-05-20 07:23:59 -07:00
Mikio Hara
b98a4d1a10 syscall: prefer PATH environment variable in bootstrap scripts
R=golang-dev, dave, iant
CC=golang-dev
https://golang.org/cl/9575043
2013-05-20 23:18:52 +09:00
Mikio Hara
c5732c8526 runtime: integrated network poller for freebsd/amd64,386, openbsd/amd64,386
Update #5199

R=golang-dev, dvyukov
CC=golang-dev
https://golang.org/cl/8825043
2013-05-20 19:25:32 +09:00
Alex Brainman
1a948950f7 net: move system common global variables into fd_unix.go
R=golang-dev, bradfitz
CC=dvyukov, golang-dev, mikioh.mikioh
https://golang.org/cl/9495044
2013-05-20 15:23:45 +10:00
Dmitriy Vyukov
1308194204 runtime: zeroize g->fnstart to not prevent GC of the closure
Fixes #5493.

R=golang-dev, minux.ma, iant
CC=golang-dev
https://golang.org/cl/9557043
2013-05-20 08:17:21 +04:00
Brad Fitzpatrick
d4cbc80d10 net/http: fewer allocations in the server path
Don't allocate for the Date or Content-Length headers.
A custom Date header formatter replaces use of time.Format.

benchmark                                   old ns/op    new ns/op    delta
BenchmarkClientServer                           67791        64424   -4.97%
BenchmarkClientServerParallel4                  62956        58533   -7.03%
BenchmarkClientServerParallel64                 62043        54789  -11.69%
BenchmarkServer                                254609       229060  -10.03%
BenchmarkServerFakeConnNoKeepAlive              17038        16316   -4.24%
BenchmarkServerFakeConnWithKeepAlive            14184        13226   -6.75%
BenchmarkServerFakeConnWithKeepAliveLite         8591         7532  -12.33%
BenchmarkServerHandlerTypeLen                   10750         9961   -7.34%
BenchmarkServerHandlerNoLen                      9535         8935   -6.29%
BenchmarkServerHandlerNoType                     9858         9362   -5.03%
BenchmarkServerHandlerNoHeader                   7754         6856  -11.58%

benchmark                                  old allocs   new allocs    delta
BenchmarkClientServer                              68           66   -2.94%
BenchmarkClientServerParallel4                     68           66   -2.94%
BenchmarkClientServerParallel64                    68           66   -2.94%
BenchmarkServer                                    21           19   -9.52%
BenchmarkServerFakeConnNoKeepAlive                 32           30   -6.25%
BenchmarkServerFakeConnWithKeepAlive               27           25   -7.41%
BenchmarkServerFakeConnWithKeepAliveLite           12           10  -16.67%
BenchmarkServerHandlerTypeLen                      19           18   -5.26%
BenchmarkServerHandlerNoLen                        17           15  -11.76%
BenchmarkServerHandlerNoType                       17           16   -5.88%
BenchmarkServerHandlerNoHeader                     12           10  -16.67%

Update #5195

R=nigeltao
CC=golang-dev
https://golang.org/cl/9432046
2013-05-19 20:15:40 -07:00
Alex Brainman
38abb09a2e runtime: change PollDesc.fd from int32 to uintptr
This is in preparation for netpoll windows version.

R=golang-dev, bradfitz
CC=dvyukov, golang-dev, mikioh.mikioh
https://golang.org/cl/9569043
2013-05-20 12:55:50 +10:00
Dmitriy Vyukov
fee1d1cda0 runtime: properly set G status after syscall
R=golang-dev, r, dave
CC=golang-dev
https://golang.org/cl/9307045
2013-05-19 19:35:09 +04:00
Dave Cheney
c3dbe5d24c misc/dashboard: add go.tools to list of subrepos
R=r, adg, dsymonds
CC=golang-dev
https://golang.org/cl/9535044
2013-05-19 10:04:23 +10:00
Anthony Martin
2dc751ac21 runtime, cmd/gc: clean up function protoypes
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/8652043
2013-05-18 15:49:23 -07:00
Anthony Martin
8b85a3d480 runtime: mark usleep as NOSPLIT on Plan 9
Usleep is called from lockextra, also marked NOSPLIT.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/9258043
2013-05-18 15:47:49 -07:00
Anthony Martin
b65271d008 runtime: fix newproc debugging print
R=golang-dev, remyoudompheng, r
CC=golang-dev
https://golang.org/cl/9249044
2013-05-18 15:47:15 -07:00
Keith Randall
28882bbd33 compress/flate: faster version of forwardCopy
benchmark                           old ns/op    new ns/op    delta
BenchmarkDecodeDigitsSpeed1e4          197767       203490   +2.89%
BenchmarkDecodeDigitsSpeed1e5         1873969      1912761   +2.07%
BenchmarkDecodeDigitsSpeed1e6        18922760     19021056   +0.52%
BenchmarkDecodeDigitsDefault1e4        194975       197054   +1.07%
BenchmarkDecodeDigitsDefault1e5       1704262      1719988   +0.92%
BenchmarkDecodeDigitsDefault1e6      16618354     16351957   -1.60%
BenchmarkDecodeDigitsCompress1e4       195281       194626   -0.34%
BenchmarkDecodeDigitsCompress1e5      1694364      1702372   +0.47%
BenchmarkDecodeDigitsCompress1e6     16463347     16492126   +0.17%
BenchmarkDecodeTwainSpeed1e4           200653       200127   -0.26%
BenchmarkDecodeTwainSpeed1e5          1861385      1759632   -5.47%
BenchmarkDecodeTwainSpeed1e6         18255769     17186679   -5.86%
BenchmarkDecodeTwainDefault1e4         189080       185157   -2.07%
BenchmarkDecodeTwainDefault1e5        1559222      1461465   -6.27%
BenchmarkDecodeTwainDefault1e6       14792125     13879051   -6.17%
BenchmarkDecodeTwainCompress1e4        188881       185151   -1.97%
BenchmarkDecodeTwainCompress1e5       1537031      1456945   -5.21%
BenchmarkDecodeTwainCompress1e6      14805972     13405094   -9.46%
BenchmarkPaeth                          4            4   -0.89%
BenchmarkDecodeGray                964679       937244   -2.84%
BenchmarkDecodeNRGBAGradient      3753769      3646416   -2.86%
BenchmarkDecodeNRGBAOpaque        3165856      2981300   -5.83%
BenchmarkDecodePaletted            713950       691984   -3.08%
BenchmarkDecodeRGB                3051718      2924260   -4.18%

R=nigeltao, bradfitz
CC=golang-dev, raph
https://golang.org/cl/9425046
2013-05-18 15:28:27 -07:00
Dominik Honnef
70f3b6097b cmd/go: Update documentation of go run to match current behaviour.
Fixes #5511.

R=golang-dev, minux.ma
CC=golang-dev
https://golang.org/cl/9530043
2013-05-18 19:22:30 +08:00
Brad Fitzpatrick
b25a53acd7 bufio: make Reader buffer transient
Share garbage between different bufio Readers. When a Reader
has zero buffered data, put its buffer into a pool.

This acknowledges that most bufio.Readers eventually get
read to completion, and their buffers are then no longer
needed.

benchmark               old ns/op    new ns/op    delta
BenchmarkReaderEmpty         2993         1058  -64.65%

benchmark              old allocs   new allocs    delta
BenchmarkReaderEmpty            3            2  -33.33%

benchmark               old bytes    new bytes    delta
BenchmarkReaderEmpty         4278          133  -96.89%

Update #5100

R=r
CC=adg, dvyukov, gobot, golang-dev, rogpeppe
https://golang.org/cl/8819049
2013-05-17 15:16:06 -07:00
Rob Pike
249842c8db cmd/vet: delete; it now lives in the go.tools subrepo
R=golang-dev, dsymonds, rsc, iant, dave
CC=golang-dev
https://golang.org/cl/9496043
2013-05-17 13:53:22 -07:00
Keith Randall
6021449236 runtime: faster x86 memmove (a.k.a. built-in copy())
REP instructions have a high startup cost, so we handle small
sizes with some straightline code.  The REP MOVSx instructions
are really fast for large sizes.  The cutover is approximately
1K.  We implement up to 128/256 because that is the maximum
SSE register load (loading all data into registers before any
stores lets us ignore copy direction).

(on a Sandy Bridge E5-1650 @ 3.20GHz)
benchmark               old ns/op    new ns/op    delta
BenchmarkMemmove0               3            3   +0.86%
BenchmarkMemmove1               5            5   +5.40%
BenchmarkMemmove2              18            8  -56.84%
BenchmarkMemmove3              18            7  -58.45%
BenchmarkMemmove4              36            7  -78.63%
BenchmarkMemmove5              36            8  -77.91%
BenchmarkMemmove6              36            8  -77.76%
BenchmarkMemmove7              36            8  -77.82%
BenchmarkMemmove8              18            8  -56.33%
BenchmarkMemmove9              18            7  -58.34%
BenchmarkMemmove10             18            7  -58.34%
BenchmarkMemmove11             18            7  -58.45%
BenchmarkMemmove12             36            7  -78.51%
BenchmarkMemmove13             36            7  -78.48%
BenchmarkMemmove14             36            7  -78.56%
BenchmarkMemmove15             36            7  -78.56%
BenchmarkMemmove16             18            7  -58.24%
BenchmarkMemmove32             18            8  -54.33%
BenchmarkMemmove64             18            8  -53.37%
BenchmarkMemmove128            20            9  -55.93%
BenchmarkMemmove256            25           11  -55.16%
BenchmarkMemmove512            33           33   -1.19%
BenchmarkMemmove1024           43           44   +2.06%
BenchmarkMemmove2048           61           61   +0.16%
BenchmarkMemmove4096           95           95   +0.00%

R=golang-dev, bradfitz, remyoudompheng, khr, iant, dominik.honnef
CC=golang-dev
https://golang.org/cl/9038048
2013-05-17 12:53:49 -07:00
Shenghou Ma
af1dd56d1b misc/cgo/test: deflake TestParallelSleep once more
Fixes #5480.

R=golang-dev, iant
CC=golang-dev
https://golang.org/cl/9475043
2013-05-18 02:55:44 +08:00
Shenghou Ma
a848475324 cmd/ld: emit .tbss section when doing dynamic internal linking
Fixes #5200.

R=iant, dave
CC=golang-dev
https://golang.org/cl/9383043
2013-05-18 02:41:49 +08:00
Alex Brainman
fad27ec5d4 os: clarify windows read console code
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/9458043
2013-05-17 17:26:44 +10:00
Alex Brainman
c15ca825ad runtime: revert 3c2cddfbdaec
It appears, syscall.NewCallback still
uses heap to store executable code.

R=golang-dev, khr
CC=golang-dev
https://golang.org/cl/9060046
2013-05-17 14:23:29 +10:00
Alex Brainman
28f74608b5 runtime: do not mark os memory as executable on windows
R=golang-dev, bradfitz, khr
CC=golang-dev
https://golang.org/cl/9235046
2013-05-17 13:37:30 +10:00
Carl Shapiro
50ba6e13b4 runtime: fix scanning of not started goroutines
The stack scanner for not started goroutines ignored the arguments
area when its size was unknown.  With this change, the distance
between the stack pointer and the stack base will be used instead.

Fixes #5486

R=golang-dev, bradfitz, iant, dvyukov
CC=golang-dev
https://golang.org/cl/9440043
2013-05-16 10:42:39 -07:00
Adam Langley
21cf646bfc crypto/tls: fix flakey test.
A test added in b37d2fdcc4d9 didn't work with some values of GOMAXPROCS
because the defer statements were in the wrong order: the Pipe could be
closed before the TLS Client was.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/9187047
2013-05-16 12:29:23 -04:00
Alex Brainman
a65f861bfa os: use small buffer when reading from windows console
Fixes #5481.

R=golang-dev, dominik.honnef, bradfitz
CC=golang-dev
https://golang.org/cl/9437044
2013-05-16 17:20:13 +10:00
Rémy Oudompheng
78f5b616fc cmd/gc: repair make(T) in export data for inlining.
When T was an unexported type it could be forgotten.

Fixes #5470.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/9303050
2013-05-16 09:01:43 +02:00
Brad Fitzpatrick
0af302f507 time: add Time.FormatAppend
This is a version of Time.Format that doesn't require allocation.

Fixes #5192
Update #5195

R=r
CC=gobot, golang-dev
https://golang.org/cl/8478044
2013-05-15 17:23:40 -07:00
Robert Hencke
f7b5a01999 reflect: use visit structure for map key in DeepEqual
R=golang-dev, bradfitz, jonathan, r
CC=golang-dev
https://golang.org/cl/8730044
2013-05-15 14:50:57 -07:00
Dmitriy Vyukov
c6293d2106 runtime: fix GC scanning of slices
If a slice points to an array embedded in a struct,
the whole struct can be incorrectly scanned as the slice buffer.
Fixes #5443.

R=cshapiro, iant, r, cshapiro, minux.ma
CC=bradfitz, gobot, golang-dev
https://golang.org/cl/9372044
2013-05-15 23:50:32 +04:00
Rob Pike
9e643ac20e misc/dashboard/codereview: add cshapiro and mpvl to reviewers list.
R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/9104052
2013-05-15 10:25:02 -07:00