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Commit Graph

6668 Commits

Author SHA1 Message Date
Andrew Gerrand
e7c222cada bytes: make examples work in playground
R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/6633050
2012-10-10 11:15:41 +11:00
Robert Griesemer
241b23606c go/printer: idempotent comment formatting
Also:

- Refactored testing framework to permit easier
idempotency testing.

- Applied gofmt -w src misc

This CL depends on CL 6639044 being applied first.

Formatting is not idempotent for all files: In those
files the comment position has changed (due to missing
precise location information) and/or the comment formatting
cannot/is not aware of independent code re-formatting.
In general it is very hard to make format idempotent when
running it in one pass only. Leaving that aside for now.

Fixes #1835.

R=r, rsc
CC=golang-dev
https://golang.org/cl/6624051
2012-10-09 17:08:09 -07:00
Robert Griesemer
af79568fde gofmt: apply gofmt -w -s src misc
Preparation for forthcoming CL 6624051: Will make it
easier to see if/what changes are incurred by it.

The alignment changes in this CL are due to CL 6610051
(fix to alignment heuristic) where it appears that an
old version of gofmt was run (and thus the correct
alignment updates were not done).

R=r
CC=golang-dev
https://golang.org/cl/6639044
2012-10-09 17:01:28 -07:00
Brad Fitzpatrick
dfc7304d32 net/http: fix name of result parameter in a comment
R=golang-dev, minux.ma
CC=golang-dev
https://golang.org/cl/6632053
2012-10-09 11:16:35 -07:00
Adam Langley
7e90f7b4ab crypto/tls: fix NPN extension parsing.
I typoed the code and tried to parse all the way to the end of the
message. Therefore it fails when NPN is not the last extension in the
ServerHello.

Fixes #4088.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6637052
2012-10-09 13:25:47 -04:00
Dmitriy Vyukov
49a5c28a18 io/ioutil: fix data race on rand
Fixes #4212.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6641050
2012-10-09 21:08:53 +04:00
Dmitriy Vyukov
cffbfaeb18 race: syscall changes
This is a part of a bigger change that adds data race detection feature:
https://golang.org/cl/6456044
The purpose of this patch is to provide coarse-grained synchronization
between all Read() and Write() calls.

R=rsc, bradfitz, alex.brainman
CC=golang-dev
https://golang.org/cl/6610064
2012-10-09 20:51:58 +04:00
Russ Cox
f76f120324 cmd/ld: use 64-bit alignment for large data and bss objects
Check for specific, important misalignment in garbage collector.
Not a complete fix for issue 599 but an important workaround.

Update #599.

R=golang-dev, iant, dvyukov
CC=golang-dev
https://golang.org/cl/6641049
2012-10-09 12:50:06 -04:00
Dmitriy Vyukov
aa97c88ecb encoding/gob: add test case for issue 4214.
See http://code.google.com/p/go/issues/detail?id=4214

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/6619068
2012-10-09 09:55:57 +04:00
Rob Pike
e855fcc307 encoding/gob: fix data race in Register
Fixes #4214.

R=golang-dev, dsymonds, bradfitz
CC=golang-dev
https://golang.org/cl/6637047
2012-10-09 11:56:38 +11:00
Robin Eklind
e9f0fc8823 debug/pe: support PE files which contain no symbol table (if NumberOfSymbols is equal to 0 in the IMAGE_FILE_HEADER structure).
No longer assume that e_lfanew (in the IMAGE_DOS_HEADER strcuture) is always one byte. It is now regarded as a 4 byte uint32.

Fixes #4177.

R=golang-dev, alex.brainman, dave, minux.ma
CC=golang-dev
https://golang.org/cl/6587048
2012-10-09 11:15:53 +11:00
David Symonds
f8b5838123 testing: change -test.benchtime to a flag.Duration.
Fixes #3902.

R=golang-dev, minux.ma, rsc, r
CC=golang-dev
https://golang.org/cl/6611059
2012-10-09 08:57:29 +11:00
David Symonds
05e4e805e0 encoding/base{32,64}: add examples.
Fixes #4136.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/6615061
2012-10-09 08:56:34 +11:00
David Symonds
c7cc894ef5 net/url: report first error from ParseQuery.
Fixes #4175.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6610068
2012-10-09 08:10:32 +11:00
Robert Griesemer
d5b570cdb1 fix build: use temporary variable to avoid compiler error
R=r
CC=golang-dev
https://golang.org/cl/6612066
2012-10-07 18:16:04 -07:00
Robert Griesemer
0d9474206f exp/types/staging: more flexible API, cleanups
- Changed Check signature to take function parameters for
  more flexibility: Now a client can interrupt type checking
  early (via panic in one the upcalls) once the desired
  type information or number of errors is reached. Default
  use is still simple.

- Cleaned up main typechecking loops. Now does not neglect
  _ declarations anymore.

- Various other cleanups.

R=golang-dev, r, rsc
CC=golang-dev
https://golang.org/cl/6612049
2012-10-07 18:02:19 -07:00
Robert Griesemer
5224875055 /exp/types/staging: expression and statement type checking
Still lots of pieces missing, but basic framework working.
Lots of tests.

R=rsc
CC=golang-dev
https://golang.org/cl/6594054
2012-10-07 18:01:43 -07:00
Robert Griesemer
328f0e7f2e exp/types/staging: test drivers
This code has been reviewed before. The most significant
change is to check_test which now can handle more than
one error at the same error position (due to spurious
errors - should not happen in praxis once error handling
has been fine-tuned). This change makes check_test easier
to use during development.

R=rsc
CC=golang-dev
https://golang.org/cl/6584057
2012-10-07 18:00:56 -07:00
Robert Griesemer
7f710c2de9 exp/locale/collate: use gofmt -w -s (rather than just gofmt -w)
Also: apply gofmt -w -s to existing tables.

R=mpvl, minux.ma, rsc
CC=golang-dev
https://golang.org/cl/6611051
2012-10-07 17:59:33 -07:00
Robert Griesemer
05fc42ab02 go/parser: fix object kind
Bug introduced with CL 6624047.

R=r
CC=golang-dev
https://golang.org/cl/6620073
2012-10-07 17:58:13 -07:00
Dmitriy Vyukov
373dbcb37a io/ioutil: fix data race under the race detector
See issue 3970 (it's already marked as Fixed).

R=rsc, minux.ma
CC=golang-dev
https://golang.org/cl/6624059
2012-10-07 22:08:06 +04:00
Dmitriy Vyukov
59b8745328 race: sync/atomic changes
This is a part of a bigger change that adds data race detection feature:
https://golang.org/cl/6456044

R=rsc, remyoudompheng
CC=gobot, golang-dev
https://golang.org/cl/6536059
2012-10-07 22:07:32 +04:00
Dmitriy Vyukov
53390c8fc7 race: sync changes
This is a part of a bigger change that adds data race detection feature:
https://golang.org/cl/6456044

R=rsc, minux.ma
CC=gobot, golang-dev
https://golang.org/cl/6529053
2012-10-07 22:07:03 +04:00
Dmitriy Vyukov
2f6cbc74f1 race: runtime changes
This is a part of a bigger change that adds data race detection feature:
https://golang.org/cl/6456044

R=rsc
CC=gobot, golang-dev
https://golang.org/cl/6535050
2012-10-07 22:05:32 +04:00
Shenghou Ma
f82c59b6cf runtime: disable TestParForParallel for now on 32-bit hosts
Also add call to GC() to make it easier to re-enable the test.

Update #4155.
When we have precise GC merged, re-enable this test.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/6622058
2012-10-08 01:56:27 +08:00
Brad Fitzpatrick
54c109b122 os: make TestMkdirAllWithSymlink more robust
Don't assume the test has a clean environment within /tmp.
Use an actual new tempdir for its tests.

Fixes FreeBSD build failure as seen at:
http://build.golang.org/log/396738676356d7fb6bab6eaf1b97cac820f8a90f

--- FAIL: TestMkdirAllWithSymlink (0.00 seconds)
path_test.go:178:                 Mkdir /tmp/dir: mkdir /tmp/dir: file exists
FAIL
FAIL    os      1.091s

R=golang-dev, minux.ma
CC=golang-dev
https://golang.org/cl/6615057
2012-10-07 10:31:56 -07:00
Brad Fitzpatrick
13576e3b65 net/http/httptest: mimic the normal HTTP server's ResponseWriter more closely
Also adds tests, which didn't exist before.

Fixes #4188

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6613062
2012-10-07 09:48:14 -07:00
Shenghou Ma
51310d8320 testing: fix extra tabs when t.Log("string")
t.Log("line 1\nline 2\nline 3")

Old output:
=== RUN TestLine3
--- PASS: TestLine3 (0.00 seconds)
testing_test.go:25: 	line 1
		line 2
		line 3
		PASS

New output:
=== RUN TestLine3
--- PASS: TestLine3 (0.00 seconds)
testing_test.go:24: 	line 1
		line 2
		line 3
PASS

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6613069
2012-10-08 00:21:53 +08:00
Shenghou Ma
f8485954bf syscall: fix Statfs and Fstatfs on Linux/ARM
R=golang-dev, dave, rsc
CC=golang-dev
https://golang.org/cl/6615055
2012-10-08 00:13:28 +08:00
Nigel Tao
d7b7957db1 image/jpeg: move the huffman bit decoder state higher up in the
decoder struct, inside the unmappedzero limit, to eliminate some
TESTB instructions in the inner decoding loop.

benchmark          old ns/op    new ns/op    delta
BenchmarkDecode      2943204      2746360   -6.69%

R=r, dave
CC=golang-dev
https://golang.org/cl/6625058
2012-10-07 19:32:28 +11:00
Nigel Tao
0b9fe6d24e image/jpeg: move the level-shift and clip out of the idct function,
to be consistent with the fdct function, and to ease any future
idct rewrites in assembly.

The BenchmarkIDCT delta is obviously just an accounting change and not
a real saving, but it does give an indication of what proportion of
time was spent in the actual IDCT and what proportion was in shift and
clip. The idct time taken is now comparable to fdct.

The BenchmarkFDCT delta is an estimate of benchmark noise.

benchmark                   old ns/op    new ns/op    delta
BenchmarkFDCT                    3842         3837   -0.13%
BenchmarkIDCT                    5611         3478  -38.01%
BenchmarkDecodeRGBOpaque      2932785      2929751   -0.10%

R=r
CC=golang-dev
https://golang.org/cl/6625057
2012-10-07 11:32:02 +11:00
Nigel Tao
f2444f0bc1 image/jpeg: clean up BenchmarkDecode and BenchmarkEncode to not
refer to opacity. Those references were copy/pasted from the
image/png encoding benchmarks, which cares whether or not the
source image is opaque, but the JPEG encoder does not care.

R=r
CC=golang-dev
https://golang.org/cl/6623052
2012-10-07 11:30:47 +11:00
Nigel Tao
12e343f372 image/jpeg: add DCT tests, do a small optimization (common sub-expression
elimination) in idct.go.

benchmark                   old ns/op    new ns/op    delta
BenchmarkIDCT                    5649         5610   -0.69%
BenchmarkDecodeRGBOpaque      2948607      2941051   -0.26%

The "type block" declaration moved so that idct.go is compilable
as a stand-alone file: "go tool 6g -S idct.go" works.

R=r
CC=golang-dev
https://golang.org/cl/6619056
2012-10-07 10:21:17 +11:00
Rob Pike
bcccad4020 text/template: fix nil crash on Templates
Fixes #3872.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6612060
2012-10-07 09:26:59 +11:00
Rob Pike
421b75c0db text/template: add an unexported method to Node
Protects the package a little against undesirable clients.

R=golang-dev, bradfitz, rsc
CC=golang-dev
https://golang.org/cl/6624054
2012-10-07 07:15:11 +11:00
Rémy Oudompheng
782464aea5 runtime: fix a panic when growing zero-width-element slices.
Fixes #4197.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/6611056
2012-10-06 12:05:52 +02:00
Dmitriy Vyukov
4cc7bf326a pprof: add goroutine blocking profiling
The profiler collects goroutine blocking information similar to Google Perf Tools.
You may see an example of the profile (converted to svg) attached to
http://code.google.com/p/go/issues/detail?id=3946
The public API changes are:
+pkg runtime, func BlockProfile([]BlockProfileRecord) (int, bool)
+pkg runtime, func SetBlockProfileRate(int)
+pkg runtime, method (*BlockProfileRecord) Stack() []uintptr
+pkg runtime, type BlockProfileRecord struct
+pkg runtime, type BlockProfileRecord struct, Count int64
+pkg runtime, type BlockProfileRecord struct, Cycles int64
+pkg runtime, type BlockProfileRecord struct, embedded StackRecord

R=rsc, dave, minux.ma, r
CC=gobot, golang-dev, r, remyoudompheng
https://golang.org/cl/6443115
2012-10-06 12:56:04 +04:00
Dmitry Chestnykh
b459afe843 crypto/sha256, crypto/sha512: 1.3x speedup
SHA-256:

benchmark          old ns/op    new ns/op    delta
BenchmarkHash1K        21686        16912  -22.01%
BenchmarkHash8K       173216       135020  -22.05%

benchmark           old MB/s     new MB/s  speedup
BenchmarkHash1K        47.22        60.55    1.28x
BenchmarkHash8K        47.29        60.67    1.28x

SHA-512:

benchmark          old ns/op    new ns/op    delta
BenchmarkHash1K        14323        11163  -22.06%
BenchmarkHash8K       114120        88693  -22.28%

benchmark           old MB/s     new MB/s  speedup
BenchmarkHash1K        71.49        91.73    1.28x
BenchmarkHash8K        71.78        92.36    1.29x

R=golang-dev, agl
CC=golang-dev
https://golang.org/cl/6584071
2012-10-05 17:04:48 -04:00
Akshat Kumar
23599ca2f6 runtime: mask SSE exceptions on plan9/amd64
The Go run-time assumes that all SSE floating-point exceptions
are masked so that Go programs are not broken by such invalid
operations. By default, the 64-bit version of the Plan 9 kernel
masks only some SSE floating-point exceptions. Here, we mask
them all on a per-thread basis.

R=rsc, rminnich, minux.ma
CC=golang-dev
https://golang.org/cl/6592056
2012-10-05 16:23:30 -04:00
Robert Griesemer
1f6fba2d56 go/printer: don't forget the .0 in 1.0
(use floating-point rather then integer constant division)

gofmt -w src misc

Fixes #3965.

R=r, bsiegert, 0xjnml
CC=bradfitz, golang-dev
https://golang.org/cl/6610051
2012-10-05 08:48:23 -07:00
Robert Griesemer
1065c6f65a go/printer: parenthesize literal function types in conversions
Also: gofmt -w src misc

R=r
CC=golang-dev, iant
https://golang.org/cl/6591071
2012-10-04 21:03:50 -07:00
Robert Griesemer
6c740e769f go/parser: unify parsing of const and var declarations
The AST representation is already identical. Making the
code (nearly) identical in the parser reduces code size
and ensures that the ast.ValueSpec nodes have the same
values (specifically, iota). This in turn permits the
sharing of much of the respective code in the typechecker.

While at it: type functions work now, so use them.

R=r
CC=golang-dev
https://golang.org/cl/6624047
2012-10-04 20:53:43 -07:00
Graham Miller
9f807fcc4a net/mail: make address parsing (more) public
Code for parsing email addresses was already partially part of the public API with "func (Header) AddressList".  This CL adds a trivial implementation for two public methods to parse address and lists from a string. With tests.

R=dsymonds
CC=golang-dev
https://golang.org/cl/5676067
2012-10-05 10:08:54 +10:00
Jeff Wendling
70ab57ea2d crypto/x509: add DecryptBlock function for loading password protected keys
Adds a DecryptBlock function which takes a password and a *pem.Block and
returns the decrypted DER bytes suitable for passing into other crypto/x509
functions.

R=golang-dev, agl, leterip
CC=golang-dev
https://golang.org/cl/6555052
2012-10-04 15:42:57 -04:00
Andrew Gerrand
ce6acefc5d go/doc: add nil to list of predeclared constants
R=gri
CC=gobot, golang-dev
https://golang.org/cl/6601054
2012-10-04 08:37:48 +10:00
Andrew Gerrand
81ae666f16 go/doc: rewrite whole file examples for playground
R=gri
CC=gobot, golang-dev
https://golang.org/cl/6592061
2012-10-04 07:55:24 +10:00
Shenghou Ma
727e5ce95f testing: update package docs to use ResetTimer() instead of StopTimer/StartTimer()
R=golang-dev, rsc, r
CC=golang-dev
https://golang.org/cl/6591051
2012-10-03 11:41:18 +08:00
Rob Pike
7f4b4c0c00 text/template: better error messages during execution,
They now show the correct name, the byte offset on the line, and context for the failed evaluation.
Before:
        template: three:7: error calling index: index out of range: 5
After:
        template: top:7:20: executing "three" at <index "hi" $>: error calling index: index out of range: 5
Here top is the template that was parsed to create the set, and the error appears with the action
starting at byte 20 of line 7 of "top", inside the template called "three", evaluating the expression
<index "hi" $>.

Also fix a bug in index: it didn't work on strings. Ouch.

Also fix bug in error for index: was showing type of index not slice.
The real previous error was:
        template: three:7: error calling index: can't index item of type int
The html/template package's errors can be improved by building on this;
I'll do that in a separate pass.

Extends the API for text/template/parse but only by addition of a field and method. The
old API still works.

Fixes #3188.

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/6576058
2012-10-03 12:02:13 +10:00
Robert Griesemer
1659aef399 go/ast: track position of <- for channel types
This is a backward-compatible API change.

Without the correct <- position information,
certain channel types have incorrect position
information.

R=iant, iant
CC=golang-dev
https://golang.org/cl/6585063
2012-10-02 17:50:36 -07:00
Shivakumar GN
5f7f9062db os/user : use username as fullname if all else fails (on windows)
Fixes #4113.

R=golang-dev, alex.brainman
CC=golang-dev
https://golang.org/cl/6545054
2012-10-03 10:33:09 +10:00
Robert Griesemer
05dc3bf572 go/parser: correctly parse <-chan T(x) as <-(chan T)(x)
Fixes #4110.

R=iant
CC=golang-dev
https://golang.org/cl/6597069
2012-10-02 16:48:30 -07:00
Andrew Gerrand
cf513387c3 go/doc: strip example output comment from synthesized main function
R=gri
CC=gobot, golang-dev
https://golang.org/cl/6524047
2012-10-02 08:35:20 +10:00
Jeremy Jackins
b9e423eff3 archive/tar: fix inconsistent namespace usage in example
This fixes some example code in the tar package documentation, which
first refers to tar.NewWriter and then to Header, which is inconsistent
because NewWriter and Header are both in the tar namespace.

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/6595050
2012-10-02 08:10:42 +10:00
Adam Langley
9070d5759f math/big: avoid some allocation in Exp
benchmark                        old ns/op    new ns/op    delta
BenchmarkRSA1024Decrypt             745686       644964  -13.51%
BenchmarkRSA2048Decrypt            5517318      5049200   -8.48%
Benchmark3PrimeRSA2048Decrypt      3767386      3288048  -12.72%

R=gri
CC=gobot, golang-dev
https://golang.org/cl/6566043
2012-10-01 17:31:35 -04:00
Akshat Kumar
af582674b0 pkg/syscall: Plan 9, 64-bit: Update error checks from sys calls.
This change updates CL 6576057 for exceptional cases where
return values from Syscall/RawSyscall functions are used.

The system calls return 32-bit integers. With the recent change
in size of `int' in Go for amd64, the type conversion was not
catching `-1' return values. This change makes the conversion
explicitly `int32'.

R=rsc, r
CC=golang-dev
https://golang.org/cl/6590047
2012-10-01 10:09:08 +10:00
David Symonds
ff2f851af1 exp/types: permit importing packages without available source.
R=gri, iant
CC=golang-dev
https://golang.org/cl/6586051
2012-09-30 15:56:23 +10:00
David Symonds
0b448bdef7 exp/types: better diagnosis for compile failures.
R=gri, dave
CC=golang-dev
https://golang.org/cl/6587046
2012-09-30 15:46:37 +10:00
Mikio Hara
2fee6e3788 syscall: add ipv4 ancillary data for darwin
R=golang-dev, dave
CC=golang-dev
https://golang.org/cl/6586044
2012-09-29 12:43:05 +09:00
Robert Griesemer
de782dd146 container/list: slightly better code factoring
R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/6569077
2012-09-28 10:58:46 -07:00
Robert Griesemer
0e9daef2d1 container/list: Correctly maintain internal invariants
The previous implementation was a mess with invariants
maintained inconsistently. Essentially reimplemented
the package:

- used a circular list as internal representation for
  significantly simpler implementation with fewer
  special cases while maintaining the illusion of
  a nil-terminated doubly linked list externally

- more precise documentation

- cleaned up and simplified tests, added test case
  for issue 4103.

No changes to the API or documented semantics.

All this said, I would be in favor of removing
this package eventually. container/ring provides
a faster implementation and a simpler and more
powerful API.

Fixes #4103.

R=r
CC=golang-dev
https://golang.org/cl/6569072
2012-09-28 10:35:32 -07:00
Eric Roshan-Eisner
631a0e71c1 strings: implement a faster single-string Replacer
The string searching is implemented separately so other functions
may make use of it in the future.

benchmark                        old ns/op    new ns/op    delta
BenchmarkSingleMaxSkipping          125889         2474  -98.03%
BenchmarkSingleLongSuffixFail        16252         1996  -87.72%
BenchmarkSingleMatch                260793       136266  -47.75%

benchmark                         old MB/s     new MB/s  speedup
BenchmarkSingleMaxSkipping           79.43      4041.57   50.88x
BenchmarkSingleLongSuffixFail        61.65       501.81    8.14x
BenchmarkSingleMatch                 57.52       110.08    1.91x

R=nigeltao
CC=golang-dev
https://golang.org/cl/6545049
2012-09-28 12:34:18 +10:00
Eric Roshan-Eisner
4bf6249ba5 testing: remove redundant whitespace in output
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/6565061
2012-09-28 10:01:09 +10:00
Akshat Kumar
8fdc90acf4 pkg/syscall: Plan 9, 64-bit: Update error checks from sys calls.
The system calls return 32-bit integers. With the recent change
in size of `int' in Go for amd64, the type conversion was not
catching `-1' return values. This change makes the conversion
explicitly `int32'.

R=rsc, rminnich, npe, r
CC=golang-dev
https://golang.org/cl/6576057
2012-09-28 09:56:44 +10:00
Michael Chaten
e289a2b913 bufio: Implement io.WriterTo for (*Reader)
This is part 1 of 2 for issue 4028

benchmark                       old ns/op    new ns/op    delta
BenchmarkReaderCopyOptimal          33495         9849  -70.60%
BenchmarkReaderCopyUnoptimal        70631        27041  -61.72%
BenchmarkReaderCopyOldImpl          51407        52970   +3.04%

Update #4028

R=dave, nigeltao, rsc, bradfitz, rogpeppe
CC=golang-dev
https://golang.org/cl/6548047
2012-09-27 16:31:03 +10:00
Josh Holland
348e31f8f7 text/template: fix typo of errorf as error in comment.
R=r, minux.ma
CC=gobot, golang-dev
https://golang.org/cl/6506120
2012-09-27 15:47:54 +10:00
Nigel Tao
791ac65b82 lzw: fix Write returning the wrong number of bytes written.
Fixes #4160.

R=rsc, r
CC=golang-dev
https://golang.org/cl/6564060
2012-09-27 13:29:39 +10:00
Rob Pike
ffea835b8f fmt: allow # and x together for strings
Silly and small but easy to be consistent.
To make it worthwhile, I eliminated an allocation when using
%x on a byte slice.

Fixes #4149.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6574046
2012-09-27 06:21:38 +10:00
Sébastien Paolacci
7014bc64b1 net: spread fd over several pollservers.
Lighten contention without preventing further improvements on pollservers.
Connections are spread over Min(GOMAXPROCS, NumCPU, 8) pollserver instances.

Median of 10 runs, 4 cores @ 3.4GHz, amd/linux-3.2:

BenchmarkTCPOneShot                171917 ns/op   175194 ns/op      1.91%
BenchmarkTCPOneShot-2              101413 ns/op   109462 ns/op      7.94%
BenchmarkTCPOneShot-4               91796 ns/op    35712 ns/op    -61.10%
BenchmarkTCPOneShot-6               90938 ns/op    30607 ns/op    -66.34%
BenchmarkTCPOneShot-8               90374 ns/op    29150 ns/op    -67.75%
BenchmarkTCPOneShot-16             101089 ns/op   111526 ns/op     10.32%

BenchmarkTCPOneShotTimeout         174986 ns/op   178606 ns/op      2.07%
BenchmarkTCPOneShotTimeout-2       101585 ns/op   110678 ns/op      8.95%
BenchmarkTCPOneShotTimeout-4        91547 ns/op    35931 ns/op    -60.75%
BenchmarkTCPOneShotTimeout-6        91496 ns/op    31019 ns/op    -66.10%
BenchmarkTCPOneShotTimeout-8        90670 ns/op    29531 ns/op    -67.43%
BenchmarkTCPOneShotTimeout-16      101013 ns/op   106026 ns/op      4.96%

BenchmarkTCPPersistent              51731 ns/op    53324 ns/op      3.08%
BenchmarkTCPPersistent-2            32888 ns/op    30678 ns/op     -6.72%
BenchmarkTCPPersistent-4            25751 ns/op    15595 ns/op    -39.44%
BenchmarkTCPPersistent-6            26737 ns/op     9805 ns/op    -63.33%
BenchmarkTCPPersistent-8            26850 ns/op     9730 ns/op    -63.76%
BenchmarkTCPPersistent-16          104449 ns/op   102838 ns/op     -1.54%

BenchmarkTCPPersistentTimeout       51806 ns/op    53281 ns/op      2.85%
BenchmarkTCPPersistentTimeout-2     32956 ns/op    30895 ns/op     -6.25%
BenchmarkTCPPersistentTimeout-4     25994 ns/op    18111 ns/op    -30.33%
BenchmarkTCPPersistentTimeout-6     26679 ns/op     9846 ns/op    -63.09%
BenchmarkTCPPersistentTimeout-8     26810 ns/op     9727 ns/op    -63.72%
BenchmarkTCPPersistentTimeout-16   101652 ns/op   104410 ns/op      2.71%

R=rsc, dvyukov, dave, mikioh.mikioh, bradfitz, remyoudompheng
CC=golang-dev
https://golang.org/cl/6496054
2012-09-26 15:32:59 -04:00
David du Colombier
cca48f1a57 crypto/x509: add Plan 9 root certificate location
R=golang-dev
CC=golang-dev, rsc
https://golang.org/cl/6571056
2012-09-26 14:47:47 -04:00
Shenghou Ma
948db4e091 crypto/aes: speed up using AES-NI on amd64
This CL requires CL 5970055.

benchmark           old ns/op    new ns/op    delta
BenchmarkEncrypt          161           23  -85.71%
BenchmarkDecrypt          158           24  -84.24%
BenchmarkExpand           526           62  -88.21%

benchmark            old MB/s     new MB/s  speedup
BenchmarkEncrypt        99.32       696.19    7.01x
BenchmarkDecrypt       100.93       641.56    6.36x

R=golang-dev, bradfitz, dave, rsc
CC=golang-dev
https://golang.org/cl/6549055
2012-09-27 01:54:10 +08:00
Rob Pike
ded94b7222 reflect.DeepEqual: rewrite clarification about nil and empty slice.
The previous version was created by an idiot. This time, Rog Peppe
wrote the text. Thanks, Rog.
(== doesn't work on slices in general, so it makes no sense to
talk about in the context of DeepEqual.)

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/6566054
2012-09-26 20:46:49 +10:00
Mikio Hara
d6665bc338 net: fix plan 9 build
R=golang-dev, lucio.dere, fshahriar
CC=golang-dev
https://golang.org/cl/6562046
2012-09-26 16:11:49 +09:00
Rob Pike
74a7cc9bf2 reflect.DeepEqual: document that empty and nil are unequal for slices
Update #4133.
Added a sentence of documentation to call out the behavior.

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/6572051
2012-09-26 15:21:07 +10:00
Robert Griesemer
1785bfca6b exp/types/staging: updated gcimporter
Mostly minor changes to match the new
definitions in types.go and const.go.

R=rsc, r
CC=golang-dev
https://golang.org/cl/6506101
2012-09-25 17:39:02 -07:00
Robert Griesemer
ebf56e086d exp/types/staging: support for typechecking (most) builtins
This code relies on some functions that are not yet in staging,
but it get's harder to keep all this in sync in a piece-meal
fashion.

R=rsc
CC=golang-dev
https://golang.org/cl/6492124
2012-09-25 17:38:43 -07:00
Robert Griesemer
f5483fb801 exp/types/staging: operands, constants, and error handling
More pieces of the typechecker code:

- Operands are temporary objects representing an expressions's
type and value (for constants). An operand is the equivalent of
an "attribute" in attribute grammars except that it's not stored
but only passed around during type checking.

- Constant operations are implemented in const.go. Constants are
represented as bool (booleans), int64 and *big.Int (integers),
*big.Rat (floats), complex (complex numbers), and string (strings).

- Error reporting is consolidated in errors.go. Only the first
dozen of lines is new code, the rest of the file contains the
exprString and typeString functions formerly in two separate
files (which have been removed).

This is a replacement CL for 6492101 (which was created without
proper use of hg).

R=rsc, r
CC=golang-dev
https://golang.org/cl/6500114
2012-09-25 17:38:22 -07:00
Christian Himpel
1b6d4b5c0a net/http: use tls host instead of proxy, when checking against a certificate
Fixes #4152.

R=bradfitz
CC=golang-dev
https://golang.org/cl/6570045
2012-09-25 09:22:13 -07:00
Alex Brainman
0e6f927108 syscall: do not use int to test network syscall results (on windows)
Fixes #4147.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/6569050
2012-09-25 17:06:39 +10:00
Russ Cox
10ea6519e4 build: make int 64 bits on amd64
The assembly offsets were converted mechanically using
code.google.com/p/rsc/cmd/asmlint. The instruction
changes were done by hand.

Fixes #2188.

R=iant, r, bradfitz, remyoudompheng
CC=golang-dev
https://golang.org/cl/6550058
2012-09-24 20:57:01 -04:00
Jan Ziak
f8c58373e5 runtime: add types to MSpan
R=rsc
CC=golang-dev
https://golang.org/cl/6554060
2012-09-24 20:08:05 -04:00
Russ Cox
ba4625c66f reflect: add MakeFunc (API CHANGE)
Fixes #1765.

R=iant, r, daniel.morsing, minux.ma, bradfitz, rogpeppe, remyoudompheng
CC=golang-dev
https://golang.org/cl/6554067
2012-09-24 20:06:32 -04:00
Mikio Hara
4b9e8415de net: add read, write message methods to IPConn, UDPConn
Both methods allow to access the IP ancillary data through
socket control messages.

This CL is required for CL 6482044; go.net/ipv4: new package.

R=rsc, r, dave
CC=golang-dev
https://golang.org/cl/6426047
2012-09-25 06:57:32 +09:00
Adam Langley
65c7dc4ace crypto/tls: support session ticket resumption.
Session resumption saves a round trip and removes the need to perform
the public-key operations of a TLS handshake when both the client and
server support it (which is true of Firefox and Chrome, at least).

R=golang-dev, bradfitz, rsc
CC=golang-dev
https://golang.org/cl/6555051
2012-09-24 16:52:43 -04:00
Francesc Campoy
b7cbfe6ace testing: document -test.bench flag
Fixes #4080.

R=rsc, adg
CC=golang-dev
https://golang.org/cl/6553068
2012-09-24 13:05:47 -07:00
Russ Cox
c7e0b8baa6 regexp/syntax: define accepted syntax
Update #3953.

R=bradfitz, campoy
CC=golang-dev
https://golang.org/cl/6543068
2012-09-24 15:33:53 -04:00
Eric Roshan-Eisner
74a1a8ae5f testing: add memory allocation stats to benchmark
R=rsc, nigeltao, dave, bradfitz, r, rogpeppe
CC=golang-dev
https://golang.org/cl/6497084
2012-09-24 15:03:16 -04:00
Russ Cox
0b08c9483f runtime: prepare for 64-bit ints
This CL makes the runtime understand that the type of
the len or cap of a map, slice, or string is 'int', not 'int32',
and it is also careful to distinguish between function arguments
and results of type 'int' vs type 'int32'.

In the runtime, the new typedefs 'intgo' and 'uintgo' refer
to Go int and uint. The C types int and uint continue to be
unavailable (cause intentional compile errors).

This CL does not change the meaning of int, but it should make
the eventual change of the meaning of int on amd64 a bit
smoother.

Update #2188.

R=iant, r, dave, remyoudompheng
CC=golang-dev
https://golang.org/cl/6551067
2012-09-24 14:58:34 -04:00
Akshat Kumar
e42788628a cmd/dist, pkg/runtime: Plan 9, 64-bit: Get PID from TLS; remove use of `_tos'.
Using offsets from Tos is cumbersome and we've had problems
in the past. Since it's only being used to grab the PID, we'll just
get that from the default TLS instead.

R=rsc, rminnich, npe
CC=golang-dev
https://golang.org/cl/6543049
2012-09-24 12:24:45 -04:00
Russ Cox
8696b08446 reflect: fix mistake in error message
Pointed out by James Chalfant after submit of CL 6500065.

TBR=golang-dev
CC=golang-dev
https://golang.org/cl/6543067
2012-09-24 11:47:27 -04:00
Russ Cox
2f06615588 encoding/asn1: prepare for 64-bit ints
The code was assuming that int = 32 bits. Don't.

Update #2188.

R=agl
CC=golang-dev
https://golang.org/cl/6543063
2012-09-24 10:30:37 -04:00
Nigel Tao
6efa648853 compress/flate: move the history buffer out of the decompressor struct.
I'm not exactly sure why there's a performance gain, but it seems like
an easy win. Maybe it's a cache line thing. Maybe it's that
unsafe.Sizeof(decompressor{}) drops to below unmappedzero, so that
checkref/checkoffset don't need to insert TESTB instructions. Maybe
it's less noise for the conservative garbage collector. Maybe it's
something else.

compress/flate benchmarks:
BenchmarkDecodeDigitsSpeed1e4          378628       349906   -7.59%
BenchmarkDecodeDigitsSpeed1e5         3481976      3204898   -7.96%
BenchmarkDecodeDigitsSpeed1e6        34419500     31750660   -7.75%
BenchmarkDecodeDigitsDefault1e4        362317       335562   -7.38%
BenchmarkDecodeDigitsDefault1e5       3290032      3107624   -5.54%
BenchmarkDecodeDigitsDefault1e6      30542540     28937480   -5.26%
BenchmarkDecodeDigitsCompress1e4       362803       335158   -7.62%
BenchmarkDecodeDigitsCompress1e5      3294512      3114526   -5.46%
BenchmarkDecodeDigitsCompress1e6     30514940     28927090   -5.20%
BenchmarkDecodeTwainSpeed1e4           412818       389521   -5.64%
BenchmarkDecodeTwainSpeed1e5          3475780      3288908   -5.38%
BenchmarkDecodeTwainSpeed1e6         33629640     31931420   -5.05%
BenchmarkDecodeTwainDefault1e4         369736       348850   -5.65%
BenchmarkDecodeTwainDefault1e5        2861050      2721383   -4.88%
BenchmarkDecodeTwainDefault1e6       27120120     25862050   -4.64%
BenchmarkDecodeTwainCompress1e4        372057       350822   -5.71%
BenchmarkDecodeTwainCompress1e5       2855109      2718664   -4.78%
BenchmarkDecodeTwainCompress1e6      26987010     26336030   -2.41%

image/png benchmarks:
BenchmarkDecodeGray               1841839      1802251   -2.15%
BenchmarkDecodeNRGBAGradient      7115318      6933280   -2.56%
BenchmarkDecodeNRGBAOpaque        6135892      6013284   -2.00%
BenchmarkDecodePaletted           1153313      1114302   -3.38%
BenchmarkDecodeRGB                5619404      5511190   -1.93%

R=rsc, r
CC=golang-dev
https://golang.org/cl/6533048
2012-09-24 17:58:08 +10:00
Marcel van Lohuizen
5e47b77990 exp/locale/collate/tools/colcmp: implementation of colcmp tool used for comparing
various implementation of collation.  The tool provides commands for soring,
regressing one implementation against another, and benchmarking.
Currently it includes collation implementations for the Go collator, ICU,
and one using Darwin's CoreFoundation framework.
To avoid building this tool in the default build, the colcmp tag has been
added to all files. This allows other tools/colcmp in this directory (e.g. it may make
sense to move maketables here) to be put in this directory as well.

R=r, rsc, mpvl
CC=golang-dev
https://golang.org/cl/6496118
2012-09-24 13:22:03 +09:00
Russ Cox
3d5ddffa30 syscall: prepare for 64-bit ints
This CL fixes code that incorrectly assumes that int is 32 bits wide.
Specifically, the socketpair system call expects a pointer to a pair
of int32s, not a pair of ints. Fix this inside the wrappers without
changing the APIs.

Update #2188.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/6552063
2012-09-24 00:06:22 -04:00
Rob Pike
9050550c12 text/template: allow .Field access to parenthesized expressions
Change the grammar so that field access is a proper operator.
This introduces a new node, ChainNode, into the public (but
actually internal) API of text/template/parse. For
compatibility, we only use the new node type for the specific
construct, which was not parseable before. Therefore this
should be backward-compatible.

Before, .X.Y was a token in the lexer; this CL breaks it out
into .Y applied to .X. But for compatibility we mush them
back together before delivering. One day we might remove
that hack; it's the simple TODO in parse.go/operand.

This change also provides grammatical distinction between
        f
and
        (f)
which might permit function values later, but not now.

Fixes #3999.

R=golang-dev, dsymonds, gri, rsc, mikesamuel
CC=golang-dev
https://golang.org/cl/6494119
2012-09-24 13:23:15 +10:00
Russ Cox
edce634963 time: prepare for 64-bit ints
The code was trying to interpret a uint32 n as a signed quantity
and then store it in an int. For this, int(n) currently works, but when
int becomes 64 bits one must write int(int32(n)) instead, to get
the 32-bit sign extension.

Update #2188.

R=golang-dev, nigeltao
CC=golang-dev
https://golang.org/cl/6551068
2012-09-23 23:04:28 -04:00
Alex Brainman
5d50dbc55a net/http: use r.Body.Close to close connection during TestServeFileFromCWD
Fixes #3917.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/6553061
2012-09-24 12:48:19 +10:00
Akshat Kumar
659d1df1bc pkg/go/ast: Avoid doing zero-length writes to the fd.
After each line, ast.Print would do a zero-length write,
which would hit the boundary condition on Plan 9 when
reading over pipes (since message boundaries are
preserved). This change makes sure we only do positive-
length writes.

R=rsc, rminnich, dave, r
CC=golang-dev
https://golang.org/cl/6558046
2012-09-24 08:30:28 +10:00
Russ Cox
46f379cc2c reflect: add Type.ConvertibleTo, Value.Convert (API CHANGE)
Fixes #4047.

R=iant, r
CC=golang-dev
https://golang.org/cl/6500065
2012-09-22 08:52:27 -04:00
Joel Sing
5373e8a8d7 debug/pe: add symbol support
Add support for processing the COFF symbol table.

R=alex.brainman
CC=golang-dev
https://golang.org/cl/6551045
2012-09-22 17:56:49 +10:00
Jan Ziak
b16c41bed7 runtime: fix typos in comments
R=rsc
CC=golang-dev
https://golang.org/cl/6554043
2012-09-21 12:25:55 -04:00
Shenghou Ma
b151af1f36 runtime: fix mmap comments
We only pass lower 32 bits of file offset to asm routine.

R=r, dave, rsc
CC=golang-dev
https://golang.org/cl/6499118
2012-09-21 13:50:02 +08:00
Russ Cox
8572950383 all: match asm variable names to Go func declarations
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/6548046
2012-09-21 00:35:56 -04:00
Russ Cox
4591cd631d unicode: performance improvements (API change)
*** There is an API change here: the introduction of the
LatinOffset int in the RangeTable struct. ***

* Avoid checking Latin range multiple times for non-Latin runes.
* Use linear search when it is faster than binary search.

go test -calibrate runs the calibration for where the linear/binary
crossover should be.

benchmark                       old MB/s     new MB/s  speedup
BenchmarkFields            36.27        41.43    1.14x
BenchmarkFieldsFunc        36.23        41.38    1.14x

The speedup here is evenly split between the linear scans
and the LatinOffset change. Both are about 1.07x.

R=r
CC=bradfitz, gobot, golang-dev
https://golang.org/cl/6526048
2012-09-21 00:35:25 -04:00
Mikio Hara
9773ac1d08 net: fix comment
R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/6546044
2012-09-21 07:13:36 +09:00
Dmitriy Vyukov
801f6e6367 sync: add Once test with panic
Tests behavior of Once when initialization function panics.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/6554047
2012-09-20 23:29:29 +04:00
Dmitriy Vyukov
d151fb9e20 runtime: reset parfor stats
Otherwise they sum up between GCs.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6535048
2012-09-20 22:46:24 +04:00
Andrew Harding
c993ac11bc crypto/x509: Use ExtKeyUsage and UnknownExtKeyUsage fields from template in CreateCertificate
R=golang-dev, agl
CC=golang-dev
https://golang.org/cl/6535057
2012-09-20 12:36:37 -04:00
Adam Langley
be11889ab1 crypto/x509: ignore non-critical email constraints
Previously we tried to parse email constraints as the maximum base
distance (which is unused and must be omitted according to RFC 5280)
because they share the same tag number. Rather than complicate the
code further, this CL just ignores the unused values.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/6552044
2012-09-20 12:30:56 -04:00
Robert Griesemer
93195e1f31 encoding/gob: fix comment
Fixes #4100.

R=adg, r, dave
CC=golang-dev
https://golang.org/cl/6535055
2012-09-19 10:11:24 -07:00
Alex Brainman
28cb9fd509 os: use small writes during console io
Fixes #3767

R=golang-dev, bradfitz, rsc
CC=golang-dev
https://golang.org/cl/6523043
2012-09-19 16:55:21 +10:00
Andrew Gerrand
7e525928d3 go/doc: synthesize "package main" for examples
R=gri
CC=golang-dev
https://golang.org/cl/6525046
2012-09-18 14:13:34 -07:00
Dmitriy Vyukov
8ed026e783 race: build system changes
This is the first part of a bigger change that adds data race detection feature:
https://golang.org/cl/6456044
Adds -race flag to go command.
API change:
+pkg go/build, type Context struct, InstallTag string

R=rsc
CC=golang-dev
https://golang.org/cl/6488075
2012-09-18 23:47:15 +04:00
Russ Cox
0e60019a42 bytes, strings: add Fields benchmarks
The performance changes will be a few different CLs.
Start with benchmarks as a baseline.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/6537043
2012-09-18 15:02:08 -04:00
Jan Ziak
35724c1aa5 runtime: hide the semaphore table from garbage collector
R=rsc, dvyukov, dave
CC=golang-dev
https://golang.org/cl/6528043
2012-09-18 14:30:01 -04:00
Jan Ziak
384af66984 reflect: use []unsafe.Pointer instead of []*int
R=rsc
CC=golang-dev
https://golang.org/cl/6527043
2012-09-18 14:23:11 -04:00
Russ Cox
ccf2b8843e encoding/json: do not read beyond array literal
Fixes #3942.

R=golang-dev, mike.rosset, r
CC=golang-dev
https://golang.org/cl/6524043
2012-09-18 14:22:55 -04:00
Russ Cox
370ae05545 reflect: add Select
R=r, iant, rogpeppe, bradfitz
CC=golang-dev
https://golang.org/cl/6498078
2012-09-18 14:22:41 -04:00
Anthony Eufemio
e8de8b58ca builtin: Changed documentation for rune type.
Fixes #4093.

R=golang-dev, bradfitz, r
CC=golang-dev
https://golang.org/cl/6536047
2012-09-18 11:01:10 -07:00
Dmitriy Vyukov
f20fd87384 runtime: refactor goroutine blocking
The change is a preparation for the new scheduler.
It introduces runtime.park() function,
that will atomically unlock the mutex and park the goroutine.
It will allow to remove the racy readyonstop flag
that is difficult to implement w/o the global scheduler mutex.

R=rsc, remyoudompheng, dave
CC=golang-dev
https://golang.org/cl/6501077
2012-09-18 21:15:46 +04:00
Mikio Hara
e4389c008a undo CL 6395055 / 2518eee18c4f
Broke TCP selfConnect

««« original CL description
net: avoid nil pointer dereference when RemoteAddr.String method chain is called

Fixes #3721.

R=dave, rsc
CC=golang-dev
https://golang.org/cl/6395055
»»»

R=rsc
CC=golang-dev
https://golang.org/cl/6533043
2012-09-19 01:33:03 +09:00
Nigel Tao
648c9eb0b5 image/jpeg: ignore an incorrect but harmless trailing restart marker.
Fixes #4084.

R=r
CC=golang-dev
https://golang.org/cl/6526043
2012-09-18 21:57:33 +10:00
Alex Brainman
6e4d24999f syscall: attempt to find error message in "local" language before resorting to error number on windows
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6499121
2012-09-18 13:02:37 +10:00
Dave Cheney
55ca5ab0be runtime: arm: abort if VFPv3 support missing
Fixes #3456.

This proposal is a reformulation of CL 5987063. This CL resets
the default GOARM value to 6 and allows the use of the VFPv3
optimisation if GOARM=7. Binaries built with this CL in place
will abort if GOARM=7 was used and the target host does not
support VFPv3.

R=minux.ma, rsc, ajstarks
CC=golang-dev
https://golang.org/cl/6501099
2012-09-18 09:55:07 +10:00
Lucio De Re
b29ed23ab5 build: fix various 'set and not used' for Plan 9
R=dave, minux.ma, rsc
CC=golang-dev
https://golang.org/cl/6501134
2012-09-17 17:25:26 -04:00
Jan Ziak
54193689cc cmd/ld: fix compilation when GOARCH != GOHOSTARCH
R=rsc, dave, minux.ma
CC=golang-dev
https://golang.org/cl/6493123
2012-09-17 17:18:21 -04:00
Charles L. Dorian
0f8f5d2140 math: Faster Tanh
From 159 to 47.6 ns/op; slightly more accurate.

R=rsc, golang-dev, mtj, dave, remyoudompheng
CC=golang-dev
https://golang.org/cl/6500121
2012-09-17 17:18:16 -04:00
Sanjay Menakuru
da1ce83732 unicode/utf8: add Examples
R=golang-dev, r
CC=adg, golang-dev
https://golang.org/cl/6493124
2012-09-17 11:06:42 -07:00
Eric Eisner
0aad3cdc59 strings: implement a faster generic Replacer
This also fixes the semantics of some corner cases with the empty
match. TODOs for genericReplacer in the tests are fixed.

benchmark                  old ns/op    new ns/op    delta
BenchmarkGenericNoMatch        71395         3132  -95.61%
BenchmarkGenericMatch1         75610        20280  -73.18%
BenchmarkGenericMatch2        837995        86725  -89.65%

R=nigeltao, rsc
CC=golang-dev
https://golang.org/cl/6492076
2012-09-17 11:50:15 +10:00
Shenghou Ma
ecb2a0a9e5 runtime: fix SI_USER for FreeBSD
Ref: http://svnweb.freebsd.org/base/head/sys/sys/signal.h?revision=HEAD&view=markup

R=golang-dev, devon.odell, r
CC=golang-dev
https://golang.org/cl/6490118
2012-09-17 01:08:41 +08:00
Rob Pike
7b7a7a5737 text/template: towards better errors
Give the right name for errors, and add a test to check we're
getting the errors we expect.
Also fix an ordering bug (calling add after stopParse) that
caused a nil indirection rather than a helpful error.
Fixes #3280.

R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/6520043
2012-09-14 15:25:37 -07:00
Brad Fitzpatrick
5c5c2c8112 os/exec: don't crash when out of fds
Command.Start could crash before if no fds were available
because a nil *os.File of /dev/null was added to the cleanup
list, which crashed before returning the proper error.

R=golang-dev, iant
CC=golang-dev
https://golang.org/cl/6514043
2012-09-14 13:40:22 -07:00
Russ Cox
ab224094d0 go/build: use custom file readers to avoid I/O
When reading Go files, read through import block.
When reading non-Go files, read only leading comments.

R=nigeltao, adg, r
CC=golang-dev
https://golang.org/cl/6493068
2012-09-14 12:22:45 -04:00
Marcel van Lohuizen
a4d08ed5df exp/locale/collate: changed API to allow access to different locales through New(),
instead of variables. Several reasons:
- Encourage users of the API to minimize the number of creations and reuse Collate objects.
- Don't rule out the possibility of using initialization code for collators. For some locales
  it will be possible to have very compact representations that can be quickly expanded
  into a proper table on demand.
Other changes:
- Change name of root* vars to main*, as the tables are shared between locales.
- Added Locales() method to get a list of supported locales.

R=r
CC=golang-dev
https://golang.org/cl/6498107
2012-09-14 19:10:02 +09:00
Adam Langley
ecc04b8927 crypto/tls: allow certificates and key to be in either order.
X509KeyPair wasn't really supposed to allow the certificate and
key to be in the same file, but it did work if you put the key
first. Since some HTTPS servers support loading keys and certs
like this, this change makes it work in either order.

Fixes #3986.

R=golang-dev, dave, rsc
CC=golang-dev
https://golang.org/cl/6499103
2012-09-13 11:00:16 -04:00
Russ Cox
37721cc1ce html/template: fix URL doc
This is the easy part of issue 3528.
(What to do about "noescape" is the hard part, left open.)

Update #3528.

R=mikesamuel, r, dsymonds
CC=golang-dev
https://golang.org/cl/6493113
2012-09-13 10:53:00 -04:00
Russ Cox
ef87c0edae crypto/rsa: reject PublicKey.E if it won't fit in a 32-bit int
Right now we only have 32-bit ints so that's a no-op.
Took the opportunity to check for some other invalid values too.
Suggestions for additions or modifications welcome.

R=agl
CC=golang-dev
https://golang.org/cl/6493112
2012-09-13 10:47:01 -04:00
Russ Cox
6ee91ced92 cmd/pack: rename __.SYMDEF to __.GOSYMDEF
This fixes a problem with ELF tools thinking they know the
format of the symbol table, as we do not use any of the
standard formats for that table.

This change will probably annoy the Plan 9 users, but I
believe there are other incompatibilities already that mean
they have to use a Go-specific nm.

Fixes #3473.

R=golang-dev, iant
CC=golang-dev
https://golang.org/cl/6500117
2012-09-13 10:26:21 -04:00
Francisco Souza
ec9967ff11 go/build: reject empty strings in Import
Fixes #3889.

R=rsc, adg
CC=golang-dev
https://golang.org/cl/6499102
2012-09-13 10:25:35 -04:00
Nigel Tao
237ee39269 image/png: optimize encoding image.Gray and image.NRGBA images.
benchmark                    old ns/op    new ns/op    delta
BenchmarkEncodeGray           23616080      5624558  -76.18%
BenchmarkEncodeNRGBOpaque     34181260     17144380  -49.84%
BenchmarkEncodeNRGBA          41235820     20345990  -50.66%
BenchmarkEncodePaletted        5594652      5620362   +0.46%
BenchmarkEncodeRGBOpaque      17242210     17168820   -0.43%
BenchmarkEncodeRGBA           66515720     67243560   +1.09%

R=r
CC=golang-dev
https://golang.org/cl/6490099
2012-09-13 15:47:12 +10:00
Russ Cox
66331532cd net/rpc/jsonrpc: fix test error message
Fixes #4041.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/6495121
2012-09-12 17:37:39 -04:00
Jan Ziak
d09afc2efb gc: generate garbage collection info for types
R=rsc, nigeltao, minux.ma
CC=golang-dev
https://golang.org/cl/6290043
2012-09-12 12:08:27 -04:00
Andreas Jellinghaus
452d6b46a3 syscall: add linux specific Getsockopt for Ucred struct
SO_PEERCRED on unix domain socket will fill a Ucred struct,
thus linux needs a custom Getsockopt variant.
Fixes #3836.

R=golang-dev, rsc, iant
CC=golang-dev
https://golang.org/cl/6445104
2012-09-12 06:38:21 -07:00
Alex Brainman
18601f88fd os: detect and handle console in File.Write on windows
Fixes #3376.

R=golang-dev, bsiegert, minux.ma, rsc
CC=golang-dev
https://golang.org/cl/6488044
2012-09-12 12:04:45 +10:00
Nigel Tao
6910356ea8 strings: fix NewReplacer(old0, new0, old1, new1, ...) to be consistent
when oldi == oldj.

Benchmark numbers show no substantial change.

R=eric.d.eisner, rogpeppe
CC=golang-dev
https://golang.org/cl/6496104
2012-09-12 10:40:39 +10:00
Nigel Tao
e39072d65f sync/atomic: add package doc for AddT, LoadT and StoreT.
Rename the first argument of CompareAndSwapT and AddT s/val/addr/
for consistency with LoadT and StoreT.

R=rsc, r, dvyukov
CC=golang-dev
https://golang.org/cl/6494112
2012-09-12 10:36:22 +10:00
Daniel Morsing
8fd65b0e1d cmd/gc: Inline pointer sized T2I interface conversions
This CL also adds support for marking the likelyness of IF nodes in the AST being true. This feature is being used here to mark the slow path as unlikely.

src/pkg/runtime:
benchmark                  old ns/op    new ns/op    delta
BenchmarkConvT2IUintptr           16            1  -91.63%

test/bench/go1:
benchmark                 old ns/op    new ns/op    delta
BenchmarkBinaryTree17    5416917000   5461355000   +0.82%
BenchmarkFannkuch11      3810355000   3842609000   +0.85%
BenchmarkGobDecode         19950950     19855420   -0.48%
BenchmarkGobEncode         11301220     11308530   +0.06%
BenchmarkGzip             548119600    546869200   -0.23%
BenchmarkGunzip           176145400    180208300   +2.31%
BenchmarkJSONEncode        93117400     70163100  -24.65%
BenchmarkJSONDecode       406626800    409999200   +0.83%
BenchmarkMandelbrot200      6300992      6317866   +0.27%
BenchmarkParse              7664396      7451625   -2.78%
BenchmarkRevcomp         1189424000   1412332000  +18.74%
BenchmarkTemplate         491308400    458654200   -6.65%

benchmark                  old MB/s     new MB/s  speedup
BenchmarkGobDecode            38.47        38.66    1.00x
BenchmarkGobEncode            67.92        67.87    1.00x
BenchmarkGzip                 35.40        35.48    1.00x
BenchmarkGunzip              110.16       107.68    0.98x
BenchmarkJSONEncode           20.84        27.66    1.33x
BenchmarkJSONDecode            4.77         4.73    0.99x
BenchmarkParse                 7.56         7.77    1.03x
BenchmarkRevcomp             213.69       179.96    0.84x
BenchmarkTemplate              3.95         4.23    1.07x

R=rsc, dave, nigeltao
CC=golang-dev
https://golang.org/cl/6351090
2012-09-11 21:42:30 +02:00
Nigel Tao
b19c32acce strings: more thorough Replacer tests.
This verifies existing behavior. Some replacements are arguably wrong
(these are marked with TODO) but changing behavior is left for a
follow-up CL.

Also fix that BenchmarkGenericMatch wasn't actually matching anything.

R=rsc, eric.d.eisner
CC=bradfitz, golang-dev
https://golang.org/cl/6488110
2012-09-11 14:40:08 +10:00
Russ Cox
f97bfb93f4 encoding/json: handle anonymous fields
Fixes #3069.

R=golang-dev, n13m3y3r
CC=golang-dev
https://golang.org/cl/6460044
2012-09-10 23:31:40 -04:00
Mikio Hara
d5a8c58170 net: delete unused IP-level socket option helpers
R=rsc, dave
CC=bradfitz, gobot, golang-dev
https://golang.org/cl/6497044
2012-09-11 08:56:28 +09:00
Mikio Hara
6c4645cffe net: rename files to clarify platform dependency
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6489056
2012-09-11 07:37:43 +09:00
Robert Griesemer
b29d641b3a exp/types/staging: typechecker API
First set of type checker files for review.
The primary concern here is the typechecker
API (types.go).

R=rsc, adonovan, r, rogpeppe
CC=golang-dev
https://golang.org/cl/6490089
2012-09-10 14:54:52 -07:00
Brad Fitzpatrick
a7743d7ad2 net/http: add If-None-Match and If-Range support to ServeContent
Also, clear Content-Type and Content-Length on Not Modified
responses before server.go strips them and spams the logs with
warnings.

R=rsc
CC=golang-dev
https://golang.org/cl/6503090
2012-09-10 10:16:09 -07:00
Adam Langley
122d2873a8 crypto/rand: typo fix from a69e30463bf4
R=golang-dev
CC=golang-dev
https://golang.org/cl/6497106
2012-09-09 20:11:58 -04:00
Adam Langley
b752ab2e90 crypto/rand: zero length reads shouldn't crash on Windows.
R=golang-dev, dave
CC=golang-dev
https://golang.org/cl/6496099
2012-09-09 20:07:09 -04:00
Mikio Hara
b737644266 net: change cname lookup test target to iana.org
It might be meaningful, and stable than others.

R=golang-dev, agl
CC=golang-dev
https://golang.org/cl/6499091
2012-09-09 23:53:48 +09:00
Marcel van Lohuizen
ef48dfa310 exp/locale/collate: added indices to builder for reusing blocks between locales.
Refactored build + buildTrie into build + buildOrdering.
Note that since the tailoring code is not checked in yet, all tailorings are identical
to root.  The table therefore should not and does not grow at this point.

R=r
CC=golang-dev
https://golang.org/cl/6500087
2012-09-08 10:46:55 +09:00
Marcel van Lohuizen
21d94a22fe exp/locale/collate: switch from DUCET to CLDR for the default root table.
R=r
CC=golang-dev
https://golang.org/cl/6499079
2012-09-08 10:38:11 +09:00
Robert Griesemer
d4cdfcf3d9 text/scanner: skip first character if it's a BOM
R=r
CC=golang-dev
https://golang.org/cl/6493097
2012-09-07 17:15:42 -07:00
Robert Griesemer
2a391f467d go/scanner: add missing BOM test
R=r
CC=golang-dev
https://golang.org/cl/6498106
2012-09-07 16:28:15 -07:00
Robert Griesemer
d5ab44e2fe go/scanner: skip first character if it's a BOM
R=r
CC=golang-dev
https://golang.org/cl/6490095
2012-09-07 13:56:31 -07:00
Albert Strasheim
412c60f1fa syscall: Test SCM credentials on Linux.
This test was previously removed in 087c6e15702e.

R=bradfitz, rsc, mikioh.mikioh
CC=golang-dev
https://golang.org/cl/6506061
2012-09-07 10:31:17 -07:00
Lucio De Re
7e414a5b01 net,mime: Minor corrections to documentation comments.
R=r
CC=dsymonds, gobot, golang-dev
https://golang.org/cl/6495085
2012-09-07 10:24:55 -07:00
Dave Cheney
212ce41d00 runtime: arm: abort if hardware floating point missing
Fixes #3911.

Requires CL 6449127.

dfc@qnap:~$ ./runtime.test
runtime: this CPU has no floating point hardware, so it cannot run
this GOARM=7 binary. Recompile using GOARM=5.

R=rsc, minux.ma
CC=golang-dev
https://golang.org/cl/6442109
2012-09-07 14:26:42 +10:00
Joel Sing
256cd7e78e syscall: regenerate/update netbsd z-files
Regenerate/update netbsd z-files on NetBSD 6.0 RC1.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/6506062
2012-09-07 02:13:14 +10:00
Dave Cheney
67ee9a7db1 crypto/tls: fix data race on conn.err
Fixes #3862.

There were many areas where conn.err was being accessed
outside the mutex. This proposal moves the err value to
an embedded struct to make it more obvious when the error
value is being accessed.

As there are no Benchmark tests in this package I cannot
feel confident of the impact of this additional locking,
although most will be uncontended.

R=dvyukov, agl
CC=golang-dev
https://golang.org/cl/6497070
2012-09-06 17:50:26 +10:00
Marcel van Lohuizen
f0a31b5fc2 exp/locale/collate/build: moved some of the code to the appropriate file, as
promised in CL 13985.

R=r
CC=golang-dev
https://golang.org/cl/6503071
2012-09-06 13:16:02 +09:00
Nigel Tao
4bd8a38641 image/jpeg: fix quantization tables to be in zig-zag order, not natural
order.

JPEG images generated prior to this CL are still valid JPEGs, as the
quantization tables used are encoded in the wire format. Such JPEGs just
don't use the recommended quantization tables.

R=r, dsymonds, raph, adg
CC=golang-dev, tuom.larsen
https://golang.org/cl/6497083
2012-09-06 11:10:47 +10:00
Russ Cox
5e3224ce79 reflect: faster FieldByName, FieldByNameFunc
The old code was a depth first graph traversal that could, under the
right conditions, end up re-exploring the same subgraphs multiple
times, once for each way to arrive at that subgraph at a given depth.

The new code uses a breadth first search to make sure that it only
visits each reachable embedded struct once.

Also add fast path for the trivial case.

benchmark                old ns/op    new ns/op    delta
BenchmarkFieldByName1         1321          187  -85.84%
BenchmarkFieldByName2         6118         5186  -15.23%
BenchmarkFieldByName3      8218553        42112  -99.49%

R=gri, r
CC=golang-dev
https://golang.org/cl/6458090
2012-09-05 09:35:53 -04:00
Alan Donovan
ee911c4265 runtime: fix typo in openbsd-only symbol name.
R=golang-dev, minux.ma, rsc
CC=golang-dev
https://golang.org/cl/6490076
2012-09-04 16:35:05 -04:00
Sébastien Paolacci
2836c63459 net: fix {FileConn, FileListener, FilePacketConn} fd leak to child process.
All of them call `newFileFD' which must properly restore close-on-exec on
duplicated fds.

R=golang-dev, bradfitz, mikioh.mikioh
CC=golang-dev
https://golang.org/cl/6445081
2012-09-04 12:37:23 -07:00
Alan Donovan
532dee3842 runtime: discard SIGPROF delivered to non-Go threads.
Signal handlers are global resources but many language
environments (Go, C++ at Google, etc) assume they have sole
ownership of a particular handler.  Signal handlers in
mixed-language applications must therefore be robust against
unexpected delivery of certain signals, such as SIGPROF.

The default Go signal handler runtime·sigtramp assumes that it
will never be called on a non-Go thread, but this assumption
is violated by when linking in C++ code that spawns threads.
Specifically, the handler asserts the thread has an associated
"m" (Go scheduler).

This CL is a very simple workaround: discard SIGPROF delivered to non-Go threads.  runtime.badsignal(int32) now receives the signal number; if it returns without panicking (e.g. sig==SIGPROF) the signal is discarded.

I don't think there is any really satisfactory solution to the
problem of signal-based profiling in a mixed-language
application.  It's not only the issue of handler clobbering,
but also that a C++ SIGPROF handler called in a Go thread
can't unwind the Go stack (and vice versa).  The best we can
hope for is not crashing.

Note:
- I've ported this to all POSIX platforms, except ARM-linux which already ignores unexpected signals on m-less threads.
- I've avoided tail-calling runtime.badsignal because AFAICT the 6a/6l don't support it.
- I've avoided hoisting 'push sig' (common to both function calls) because it makes the code harder to read.
- Fixed an (apparently incorrect?) docstring.

R=iant, rsc, minux.ma
CC=golang-dev
https://golang.org/cl/6498057
2012-09-04 14:40:49 -04:00
Alan Donovan
b2458ff75c runtime/pprof: emit end-of-log marker at end of CPU profile.
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6489065
2012-09-04 14:34:03 -04:00
Patrick Crosby
f4c22b29d4 net/http/pprof: updated documentation (run an http server)
Added instructions for starting an http server
to the godoc header for this package.  With the old
instructions, the example "go tool pprof..." commands
wouldn't work unless you happen to be running an http
server on port 6060 in your application.

R=golang-dev, minux.ma, adg, giacomo.tartari
CC=golang-dev
https://golang.org/cl/6483049
2012-09-04 11:27:20 +10:00
Alex Brainman
7f075ece42 runtime: increase stack frame during cgo call on windows/amd64
Fixes #3945.

R=golang-dev, minux.ma
CC=golang-dev, vcc.163
https://golang.org/cl/6490056
2012-09-03 12:12:51 +10:00
Russ Cox
a96c2b8c1a cmd/gc: fix PkgPath of byte, rune types
Fixes #3853.

R=ken2
CC=golang-dev
https://golang.org/cl/6492071
2012-09-01 19:55:55 -04:00
Rémy Oudompheng
c1c027964e strconv: faster FormatFloat for fixed number of digits.
The performance improvement applies to the case where
prec >= 0 and fmt is 'e' or 'g'.

Additional minor optimisations are included. A small
performance impact happens in some cases due to code
refactoring.

benchmark                              old ns/op    new ns/op    delta
BenchmarkAppendFloat64Fixed1                 623          235  -62.28%
BenchmarkAppendFloat64Fixed2                1050          272  -74.10%
BenchmarkAppendFloat64Fixed3                3723          243  -93.47%
BenchmarkAppendFloat64Fixed4               10285          274  -97.34%

BenchmarkAppendFloatDecimal                  190          206   +8.42%
BenchmarkAppendFloat                         387          377   -2.58%
BenchmarkAppendFloatExp                      397          339  -14.61%
BenchmarkAppendFloatNegExp                   377          336  -10.88%
BenchmarkAppendFloatBig                      546          482  -11.72%

BenchmarkAppendFloat32Integer                188          204   +8.51%
BenchmarkAppendFloat32ExactFraction          329          298   -9.42%
BenchmarkAppendFloat32Point                  400          372   -7.00%
BenchmarkAppendFloat32Exp                    369          306  -17.07%
BenchmarkAppendFloat32NegExp                 372          305  -18.01%

R=golang-dev, rsc
CC=golang-dev, remy
https://golang.org/cl/6462049
2012-09-01 16:31:46 +02:00
Marcel van Lohuizen
5a78e5ea4c exp/locale/collate: Added functionality to parse and process LDML files
for both locale-specific exemplar characters and tailorings to
the collation table.
Some specifices:
- Moved stringSet to the beginning of the file and added some functionality
  to parse command line files.
- openReader now modifies the input URL for localFiles to guarantee that
  any http source listed in the generated file is indeed this source.
- Note that the implementation of the Tailoring API used by maketables.go
  is not yet checked in. So for now adding tailorings are simply no-ops.
- The generated file of exemplar characters will be used somewhere else.
  Here is a snippet of how the body of the generated file looks like:

type exemplarType int
const (
        exCharacters exemplarType = iota
        exContractions
        exPunctuation
        exAuxiliary
        exCurrency
        exIndex
        exN
)

var exemplarCharacters = map[string][exN]string{
        "af": [exN]string{
                0: "a á â b c d e é è ê ë f g h i î ï j k l m n o ô ö p q r s t u û v w x y z",
                3: "á à â ä ã æ ç é è ê ë í ì î ï ó ò ô ö ú ù û ü ý",
                4: "a b c d e f g h i j k l m n o p q r s t u v w x y z",
        },
        ...
}

R=r
CC=golang-dev
https://golang.org/cl/6501070
2012-09-01 14:15:00 +02:00
Marcel van Lohuizen
18aa55c169 exp/locale/collate: first changes that introduce implementation of tailorings:
- Elements in the array are now sorted as a linked list.  This makes it easier to
  apply tailorings.
- Added code to sort entries by collation elements.
- Added logical reset points.  This is used for tailoring relative to certain
  properties, rather than characters.

NOTE: all code for type entry should now be in order.go.  To keep the diffs for
this CL reasonable, though, the existing code is left in builder.go.  I'll move
this in a separate CL.

R=r
CC=golang-dev
https://golang.org/cl/6493063
2012-09-01 14:13:37 +02:00
Dave Cheney
dd79b330c9 syscall: add PtraceSyscall(pid int, signal int)
Fixes #3525.

PTRACE_SYSCALL behaves like PTRACE_CONT and can deliver
a signal to the process. Ideally PtraceSingleStep should
support the signal argument, but its interface is frozen
by Go1.

R=golang-dev, r, rsc
CC=golang-dev
https://golang.org/cl/6353051
2012-09-01 09:17:14 +10:00
Patrick Higgins
d168442708 net/http: added ParseTime function.
Parses a time header value into a time.Time according to rfc2616 sec 3.3.

R=golang-dev, dave, rsc, r
CC=bradfitz, golang-dev
https://golang.org/cl/6344046
2012-08-31 18:10:16 -04:00
Shawn Smith
a11b748fa2 encoding/xml: parse comments in DOCTYPE
R=rsc, n13m3y3r
CC=golang-dev
https://golang.org/cl/6330061
2012-08-31 18:09:31 -04:00
Ivan Krasin
5287175ad9 runtime: add vdso support for linux/amd64. Fixes issue 1933.
R=iant, imkrasin, krasin, iant, minux.ma, rsc, nigeltao, r, fullung
CC=golang-dev
https://golang.org/cl/6454046
2012-08-31 18:07:04 -04:00
Alexandru Moșoi
3efc482190 net/rpc/jsonrpc: handles missing "params" in jsonrpc.
A crash happens in the first request in a connection
if "params" field is missing because c.req.Params is Nil.

Fixes #3848.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6446051
2012-08-31 15:52:27 -04:00
Russ Cox
020c6558d9 runtime/pprof: restore articles in type doc comments
Reverts part of CL 6460082.

If a doc comment describes a type by explaining the
meaning of one instance of the type, a leading article
is fine and makes the text less awkward.

Compare:
// A dog is a kind of animal.
// Dog is a kind of animal.

R=golang-dev, dsymonds, dvyukov, r
CC=golang-dev
https://golang.org/cl/6494066
2012-08-31 13:49:57 -04:00
Akshat Kumar
a72bebf6e1 src: Add support for 64-bit version of Plan 9
This set of changes extends the Plan 9 support
to include the AMD64 architecture and should
work on all versions of Plan 9.

R=golang-dev, rminnich, noah.evans, rsc, minux.ma, npe
CC=akskuma, golang-dev, jfflore, noah.evans
https://golang.org/cl/6479052
2012-08-31 13:21:13 -04:00
Russ Cox
e29659b3c3 net/http: add (*ServeMux).Handler method
The Handler method makes the ServeMux dispatch logic
available to wrappers that enforce additional constraints
on requests.

R=golang-dev, bradfitz, dsymonds
CC=golang-dev
https://golang.org/cl/6450165
2012-08-31 12:16:31 -04:00
Christian Himpel
db7dbe32aa net/http: fix inserting of implicit redirects in serve mux
In serve mux, if pattern contains a host name, pass only the path to
the redirect handler.

Add tests for serve mux redirections.

R=rsc
CC=bradfitz, gobot, golang-dev
https://golang.org/cl/6329045
2012-08-31 12:00:01 -04:00
Nigel Tao
13cf2473b8 exp/html: change a node's children from a slice to a linked list.
Also rename Node.{Add,Remove} to Node.{AppendChild,RemoveChild} to
be consistent with the DOM.

benchmark                      old ns/op    new ns/op    delta
BenchmarkParser                  4042040      3749618   -7.23%

benchmark                       old MB/s     new MB/s  speedup
BenchmarkParser                    19.34        20.85    1.08x

BenchmarkParser mallocs per iteration is also:
10495 before / 7992 after

R=andybalholm, r, adg
CC=golang-dev
https://golang.org/cl/6495061
2012-08-31 10:00:12 +10:00
Robert Griesemer
d6c69dc602 go/scanner: don't print garbage if there's no error
R=r
CC=golang-dev
https://golang.org/cl/6489059
2012-08-30 16:10:33 -07:00
Rob Pike
363ec80dec cmd/gc: string conversion for surrogates
This is required by the spec to produce the replacement char.
The fix lies in lib9's rune code.

R=golang-dev, nigeltao, rsc
CC=golang-dev
https://golang.org/cl/6443109
2012-08-30 11:16:55 -07:00
Rob Pike
b7627d3d1f path: improve documentation for Dir
R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/6495059
2012-08-30 11:16:41 -07:00
Dmitriy Vyukov
e61c047c3e net/rpc: protect serviceMap with RWMutex
R=r, r
CC=golang-dev
https://golang.org/cl/6494044
2012-08-30 20:32:32 +04:00
Rob Pike
de13e8dccd text/template: make spaces significant
Other than catching an error case that was missed before, this
CL introduces no changes to the template language or API.

For simplicity, templates use spaces as argument separators.
This means that spaces are significant: .x .y is not the same as .x.y.
In the existing code, these cases are discriminated by the lexer,
but that means for instance that (a b).x cannot be distinguished
from (a b) .x, which is lousy. Although that syntax is not
supported yet, we want to support it and this CL is a necessary
step.

This CL emits a "space" token (actually a run of spaces) from
the lexer so the parser can discriminate these cases. It therefore
fixes a couple of undisclosed bugs ("hi".x is now an error) but
doesn't otherwise change the language. Later CLs will amend
the grammar to make .X a proper operator.

There is one unpleasantness: With space a token, three-token
lookahead is now required when parsing variable declarations
to discriminate them from plain variable references. Otherwise
the change isn't bad.

The CL also moves the debugging print code out of the lexer
into the test, which is the only place it's needed or useful.

Step towards resolving issue 3999.
It still remains to move field chaining out of the lexer
and into the parser and make field access an operator.

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/6492054
2012-08-29 21:42:53 -07:00
Shenghou Ma
f78ead3ca4 syscall: extract an ExampleLoadLibrary from comment
while we are at it, fix some out-of-date comments.

R=golang-dev, dave, r
CC=golang-dev
https://golang.org/cl/6498054
2012-08-29 21:44:46 +08:00
Dave Cheney
f8d4bb884f net/http/httputil: fix race in DumpRequestOut
Fixes #3892.

Swapping the order of the writers inside the MultiWriter ensures
the request will be written to buf before http.ReadRequest completes.

The fencedBuffer is not required to make the test pass on
any machine that I have access too, but as the buf is shared
across goroutines, I think it is necessary for correctness.

R=bradfitz, fullung, franciscossouza
CC=golang-dev
https://golang.org/cl/6483061
2012-08-29 09:05:30 +10:00
Mikio Hara
ddbc85ce48 net: delete unused socket-level option helpers
R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/6499043
2012-08-29 06:54:00 +09:00
Christopher Swenson
baf426f10f math/big: Replace RCLQ + ANDQ with SETCS in unrolled arithmetic assembly.
benchmark             old ns/op    new ns/op    delta
BenchmarkAddVW_1              8            8   +0.60%
BenchmarkAddVW_2             10            9   -8.64%
BenchmarkAddVW_3             10           10   -4.63%
BenchmarkAddVW_4             10           11   +3.67%
BenchmarkAddVW_5             11           12   +5.98%
BenchmarkAddVW_1e1           18           20   +6.38%
BenchmarkAddVW_1e2          129          115  -10.85%
BenchmarkAddVW_1e3         1270         1089  -14.25%
BenchmarkAddVW_1e4        13376        12145   -9.20%
BenchmarkAddVW_1e5       130392       125260   -3.94%

benchmark              old MB/s     new MB/s  speedup
BenchmarkAddVW_1        7709.10      7661.92    0.99x
BenchmarkAddVW_2       12451.10     13604.00    1.09x
BenchmarkAddVW_3       17727.81     18721.54    1.06x
BenchmarkAddVW_4       23552.64     22708.81    0.96x
BenchmarkAddVW_5       27411.40     25816.22    0.94x
BenchmarkAddVW_1e1     34063.19     32023.06    0.94x
BenchmarkAddVW_1e2     49529.97     55360.55    1.12x
BenchmarkAddVW_1e3     50380.44     58764.18    1.17x
BenchmarkAddVW_1e4     47843.59     52696.10    1.10x
BenchmarkAddVW_1e5     49082.60     51093.66    1.04x

R=gri, rsc, r
CC=golang-dev
https://golang.org/cl/6480063
2012-08-28 09:29:45 -07:00
Brad Fitzpatrick
49f29c9c22 net/http: send an explicit zero Content-Length when Handler never Writes
Fixes #4004

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/6472055
2012-08-26 11:17:55 -07:00
Joel Sing
79473d6b1c runtime: use netbsd signal ABI v2
Use version 2 of the NetBSD signal ABI - both version 2 and version 3
are supported by the kernel, with near identical behaviour. However,
the netbsd32 compat code does not allow version 3 to be used, which
prevents Go netbsd/386 binaries from running in compat mode on a
NetBSD amd64 kernel. Switch to version 2 of the ABI, which is the
same version currently used by NetBSD's libc.

R=minux.ma
CC=golang-dev
https://golang.org/cl/6476068
2012-08-26 20:57:47 +10:00
Robert Griesemer
74c6325142 math/big: fix broken comment
R=iant, iant
CC=golang-dev
https://golang.org/cl/6485064
2012-08-24 13:50:09 -07:00