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Commit Graph

6905 Commits

Author SHA1 Message Date
Ian Lance Taylor
257df1719d debug/proc: Remove.
The package was always GNU/Linux specific, and is no longer
used by anything now that exp/ogle has been removed.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4757049
2011-07-18 09:55:09 -07:00
Dmitriy Vyukov
ee6e1a3ff7 sync: add fast paths to WaitGroup
benchmark                                        old ns/op    new ns/op    delta
BenchmarkWaitGroupUncontended                        93.50        33.60  -64.06%
BenchmarkWaitGroupUncontended-2                      44.30        16.90  -61.85%
BenchmarkWaitGroupUncontended-4                      21.80         8.47  -61.15%
BenchmarkWaitGroupUncontended-8                      12.10         4.86  -59.83%
BenchmarkWaitGroupUncontended-16                      7.38         3.35  -54.61%
BenchmarkWaitGroupAddDone                            58.40        33.70  -42.29%
BenchmarkWaitGroupAddDone-2                         293.00        85.80  -70.72%
BenchmarkWaitGroupAddDone-4                         243.00        51.10  -78.97%
BenchmarkWaitGroupAddDone-8                         236.00        52.20  -77.88%
BenchmarkWaitGroupAddDone-16                        215.00        43.30  -79.86%
BenchmarkWaitGroupAddDoneWork                       826.00       794.00   -3.87%
BenchmarkWaitGroupAddDoneWork-2                     450.00       424.00   -5.78%
BenchmarkWaitGroupAddDoneWork-4                     277.00       220.00  -20.58%
BenchmarkWaitGroupAddDoneWork-8                     440.00       116.00  -73.64%
BenchmarkWaitGroupAddDoneWork-16                    569.00        66.50  -88.31%
BenchmarkWaitGroupWait                               29.00         8.04  -72.28%
BenchmarkWaitGroupWait-2                             74.10         4.15  -94.40%
BenchmarkWaitGroupWait-4                            117.00         2.30  -98.03%
BenchmarkWaitGroupWait-8                            111.00         1.31  -98.82%
BenchmarkWaitGroupWait-16                           104.00         1.27  -98.78%
BenchmarkWaitGroupWaitWork                          802.00       792.00   -1.25%
BenchmarkWaitGroupWaitWork-2                        411.00       401.00   -2.43%
BenchmarkWaitGroupWaitWork-4                        210.00       199.00   -5.24%
BenchmarkWaitGroupWaitWork-8                        206.00       105.00  -49.03%
BenchmarkWaitGroupWaitWork-16                       334.00        54.40  -83.71%

R=rsc
CC=golang-dev
https://golang.org/cl/4672050
2011-07-18 12:35:55 -04:00
Russ Cox
92c6061b5c 5l: assume Linux binary, not Plan 9
R=bradfitz
CC=golang-dev
https://golang.org/cl/4767042
2011-07-18 12:30:10 -04:00
Brad Fitzpatrick
3745716bc3 http: let FileServer work when path doesn't begin with a slash
... as when it's over-stripped with StripPrefix.

R=golang-dev, andybalholm, rsc
CC=golang-dev
https://golang.org/cl/4759052
2011-07-18 09:04:48 -07:00
Russ Cox
caa5647408 ld: allow seek within write buffer
Reduces number of write+seek's from 88516 to 2080
when linking godoc with 6l.

Thanks to Alex Brainman for pointing out the
many small writes.

R=golang-dev, r, alex.brainman, robert.hencke
CC=golang-dev
https://golang.org/cl/4743043
2011-07-18 12:04:09 -04:00
Albert Strasheim
870fdd760a syscall: Parse and encode SCM_RIGHTS and SCM_CREDENTIALS.
R=rsc, agl, mikioh.mikioh
CC=golang-dev
https://golang.org/cl/4667066
2011-07-18 11:21:59 -04:00
Dmitriy Vyukov
c1f035ba4c runtime: fix data race in Plan9 sysalloc
Add mutex to protect brk limit.
Add mstats.sys update.

R=rsc
CC=golang-dev
https://golang.org/cl/4762045
2011-07-18 10:50:04 -04:00
Brad Fitzpatrick
e8689404a7 cgo: add missing semicolon in generated struct
This affected certain signatures needing padding
like:

//export Foo
func Foo() (int, C.long) { ... }

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4745047
2011-07-18 07:23:52 -07:00
Dave Cheney
c945d9c8a1 gc: fix silent sign truncation in pgen.c
Fixes #2076.

R=golang-dev, r, r, dsymonds, lucio.dere
CC=golang-dev
https://golang.org/cl/4744047
2011-07-18 21:09:28 +10:00
Rob Pike
9a5bb287e8 exp/template: dig into empty interfaces so a struct (say) stored in an empty
interface field can be unpacked. We don't have type assertions here so we
must be forthright.

R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/4757047
2011-07-18 17:34:42 +10:00
Alex Brainman
3c4ca95da9 path/filepath: fixes for windows paths
- Clean and IsAbs to handle paths with drive letter properly.
- Clean to replace / with \.

R=golang-dev, adg
CC=golang-dev, mattn.jp
https://golang.org/cl/4758051
2011-07-18 17:08:12 +10:00
Nigel Tao
95323c59ea runtime: fix panic for make(chan [0]byte).
I suspect that this was introduced by
http://code.google.com/p/go/source/detail?r=6e4ee32fffd1

R=r
CC=golang-dev
https://golang.org/cl/4764045
2011-07-18 15:54:11 +10:00
David Symonds
a8e0035bd3 http: drain the pipe output in TestHandlerPanic to avoid logging deadlock.
R=r
CC=golang-dev
https://golang.org/cl/4756047
2011-07-18 12:59:16 +10:00
Rob Pike
08e47ebb7d fmt: fix a couple of documentation glitches.
R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/4758050
2011-07-18 11:44:27 +10:00
Rob Pike
50d90451ff reflect: panic if Method index is out of range for a type.
Makes the code agree with the documentation.

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/4759050
2011-07-18 11:34:13 +10:00
Rob Pike
9d55c282e3 5c: attempt to fix build by silencing warnings about unused variables.
The story is more complicated; this is just a bandaid.

R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/4755047
2011-07-18 11:08:55 +10:00
Quan Yong Zhai
cb051a3a1d gob: minor cleanup
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4754050
2011-07-18 10:48:31 +10:00
Rob Pike
f189308fb4 fmt: Scan(&int) was mishandling a lone zero.
It took it as an octal base prefix but assumed more digits were coming.
Fixes #2077.

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/4764044
2011-07-18 10:05:35 +10:00
Lucio De Re
8c5c3c504c cmd/5l/Makefile: directory prefix nit, "../5l/" is not needed.
R=golang-dev, r
CC=golang-dev, rsc
https://golang.org/cl/4755046
2011-07-18 08:46:47 +10:00
Brad Fitzpatrick
8b33c7b5be http: make tests quiet, fixing a test race
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4754044
2011-07-17 15:46:10 -07:00
Brad Fitzpatrick
6075206904 log: more locking
This didn't actually cause a bug, but looks wrong.

There was a lock but there was more shared mutable state not
guarded by it.

R=golang-dev, dsymonds, r
CC=golang-dev
https://golang.org/cl/4760047
2011-07-17 15:46:00 -07:00
Rob Pike
c705701c69 exp/templates: variable scope persists until "end".
The previous CL doicumented and diagnosed the old situation.
This one changes it to something more traditional: any action
may declare a variable, and the block structure of scopes
applies only to control seequences.

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/4748047
2011-07-17 13:31:59 +10:00
Rob Pike
331840f509 exp/template: allow declaration of variables only inside control structures.
In simple pipelines the declaration has no scope.
Also document the scope.

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/4761044
2011-07-17 12:32:00 +10:00
Russ Cox
e07c6e6ee7 http: fixes for sniffing
R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/4753044
2011-07-15 12:07:37 -04:00
Lucio De Re
4c6280b0f1 6a, 6c, 6l: fix for Plan 9 build
6a/a.h:
. Dropped <u.h> and <libc.h>.
. Made definition of EOF conditional.

6a/a.y:
. Added <u.h> and <libc.h>.

6a/lex.c:
. Added <u.h> and <libc.h>.
. Dropped <ctype.h> (now in <u.h>).

6c/gc.h:
. Added varargck pragma for "lD".

6c/swt.c:
. Dropped unused "thestring" argument in Bprint() calls.

6l/Makefile:
. Dropped unneeded directory prefix.

6l/l.h:
. Dropped unneeded directory prefix.
. Added varargck pragma for "I" and "i".

6l/obj.c:
. Dropped unneeded assignment.
. Dropped unreachable goto statement.

6l/pass.c:
. Dropped assignments flagged as unused.

6l/prof.c:
. Replaced "#if 0" with "#ifdef NOTDEF".

6l/span.c:
. Dropped unused incrementation.
. Added USED() as required.
. Dropped unreachable "return" statement.

R=golang-dev
CC=golang-dev, rsc
https://golang.org/cl/4747044
2011-07-15 11:58:39 -04:00
Lucio De Re
5ea4d73b17 5a, 5c, 5l: fix for Plan 9 build
5a/a.h:
. Removed <u.h> and <lib.h>.
. Made definition of EOF conditional.

5a/a.y:
. Added <u.h> and <lib.h>.

5a/lex.c:
. Added <u.h> and <lib.h>.
. Dropped <ctype.h> (now in <u.h>).

5c/peep.c:
. Removed unnecessary "return 0" statement.

5c/reg.c:
. Added compilation condition around unused code.

5c/swt.c:
. Removed unused "thestring" argument from Bprint() calls.

5l/asm.c:
. Added USED() statements as required.
. Adjusted a few format specifications.
. Added compilation condition around unused code.

5l/l.h:
. Dropped directory prefix from <../5l/5.out.h>.
. Added varargck pragma for "I" and "i".

5l/obj.c:
. Cascaded consecutive "if" statements.
. Dropped unnecessary incrementation and assignments.

5l/pass.c:
. Dropped unnecessary assignment.

5l/prof.c:
. #if 0 converted to #ifdef NOTDEF.

5l/span.c:
. Dropped unnecessary incrementation and assignments.

R=golang-dev
CC=golang-dev, rsc
https://golang.org/cl/4752041
2011-07-15 11:58:28 -04:00
Lucio De Re
0490eb60bb 8l: nits
8l/Makefile:
. Dropped unnecessary prefix from "../8l/8.out.h"

8l/l.h:
. Dropped unnecessary prefix from "../8l/8.out.h"
. Dropped unused and inconsistent "I" vararg pragma.

R=golang-dev
CC=golang-dev, rsc
https://golang.org/cl/4754041
2011-07-15 11:51:59 -04:00
Dmitriy Vyukov
491aa1579d runtime: native xadd for 386/amd64
benchmark                          old ns/op    new ns/op    delta
BenchmarkSemaUncontended               37.40        34.10   -8.82%
BenchmarkSemaUncontended-2             18.90        17.70   -6.35%
BenchmarkSemaUncontended-4             11.90        10.90   -8.40%
BenchmarkSemaUncontended-8              6.26         5.19  -17.09%
BenchmarkSemaUncontended-16             4.39         3.91  -10.93%
BenchmarkSemaSyntNonblock              38.00        35.30   -7.11%
BenchmarkSemaSyntNonblock-2            83.00        46.70  -43.73%
BenchmarkSemaSyntNonblock-4           124.00       101.00  -18.55%
BenchmarkSemaSyntNonblock-8           124.00       116.00   -6.45%
BenchmarkSemaSyntNonblock-16          148.00       114.00  -22.97%

(on HP Z600 2 x Xeon E5620, 8 HT cores, 2.40GHz)

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4755041
2011-07-15 11:27:16 -04:00
Luuk van Dijk
8cf8806d31 gc: some enhancements to printing debug info.
R=rsc
CC=golang-dev
https://golang.org/cl/4710046
2011-07-15 16:00:05 +02:00
Russ Cox
e1b2e20217 http: sniffing placeholder
R=dsymonds
CC=golang-dev
https://golang.org/cl/4746041
2011-07-15 01:01:49 -04:00
Andrew Gerrand
5d929a9c92 go/build: less aggressive failure when GOROOT not found
R=golang-dev, rsc, dsymonds
CC=golang-dev
https://golang.org/cl/4743041
2011-07-15 13:45:22 +10:00
Russ Cox
29125be5c7 runtime: make TestSideEffectOrder work twice
R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/4714045
2011-07-14 23:43:03 -04:00
Brad Fitzpatrick
fc7b42325a cgi: make test less flaky
Previously, during the anti-zombie test, a
CGI process had to finish within ~625ms.
Now it gets ~5.6 seconds.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4741041
2011-07-14 17:00:14 -07:00
Robert Griesemer
48f598a393 go/printer: simplify internal state
No formatting changes.

R=rsc
CC=golang-dev
https://golang.org/cl/4735042
2011-07-14 16:09:15 -07:00
Robert Griesemer
90564a9256 go/printer: changed max. number of newlines from 3 to 2
manual changes in src/pkg/go/printer, src/cmd/gofix/signal_test.go
(cd src/cmd/gofix/testdata; gofmt -w *.in *.out)
(cd src/pkg/go/printer; gotest -update)
gofmt -w misc src

runs all tests

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4715041
2011-07-14 14:39:40 -07:00
Russ Cox
58e19aa4cb go: require { } around else block
R=gri, ken, r
CC=golang-dev
https://golang.org/cl/4721044
2011-07-14 17:15:52 -04:00
Brad Fitzpatrick
3f53475c97 json: add omitempty struct tag option
Fixes #2032

R=rsc, dsymonds, r, r
CC=golang-dev
https://golang.org/cl/4709044
2011-07-14 11:54:55 -07:00
Robert Griesemer
8d73781f8b godoc: fix build (add Makefile change)
R=bradfitz
CC=golang-dev
https://golang.org/cl/4733041
2011-07-14 11:48:23 -07:00
Robert Griesemer
df68a61c9e godoc: support for file systems stored in .zip files
Instead of serving files of the underlying OS file system,
a .zip file may be provided to godoc containing the files
to serve; for instance:

   godoc -http=:6060 -zip=go.zip

using a .zip file created from a clean tree as follows:

   zip -r go.zip $GOROOT

R=rsc
CC=golang-dev
https://golang.org/cl/4670053
2011-07-14 11:34:53 -07:00
Luuk van Dijk
e8ff9a624f gc: fix closure bug
Fixes #2056.

R=rsc
CC=golang-dev
https://golang.org/cl/4709042
2011-07-14 18:13:39 +02:00
David Symonds
cbad580e9c json: escape < and > in any JSON string.
Angle brackets can trigger some browser sniffers, causing
some forms of JSON output to be interpreted as HTML.
Escaping angle brackets closes that security hole.

R=rsc
CC=golang-dev
https://golang.org/cl/4701047
2011-07-14 13:30:08 +10:00
Rob Pike
fc1f0bd5e9 exp/template: allow range actions to declare a key and element variable.
{{range $key, $element := pipeline}}
This CL is smaller than it looks due to some rearrangement and renaming.

R=rsc, r
CC=golang-dev
https://golang.org/cl/4709047
2011-07-14 13:15:55 +10:00
Russ Cox
aec89c4c40 mime: fix build
R=bradfitz
CC=golang-dev
https://golang.org/cl/4695060
2011-07-13 20:04:12 -07:00
David Symonds
a16ad6fe0f exp/template: escape < and > in JS escaper.
Angle brackets can trigger some browser sniffers,
causing some output to be interpreted as HTML.
Escaping angle brackets closes that security hole.

R=r
CC=golang-dev
https://golang.org/cl/4714044
2011-07-14 12:02:58 +10:00
Rob Pike
dfffc7a5d5 exp/template: include function name in error returned by function or method call.
R=golang-dev, rsc, r
CC=golang-dev
https://golang.org/cl/4711049
2011-07-14 11:32:06 +10:00
Rob Pike
19e207d24d exp/template: simplify method and function calls by using the value's Method
rather than the type's, so a method's invocation works the same as a function's.

R=golang-dev, rsc, r
CC=golang-dev
https://golang.org/cl/4704049
2011-07-14 11:00:23 +10:00
Mikio Hara
689a2ec8c3 json: allow using '$' and '-' as the struct field's tag
R=adg, rsc, bradfitz, mattn.jp, gustavo
CC=golang-dev
https://golang.org/cl/4625081
2011-07-13 17:41:33 -07:00
Rob Pike
125e8277d5 reflect: trivial addition: Value.NumMethod.
Just an oversight it was missing.

R=rsc, dsymonds, bradfitz, r
CC=golang-dev
https://golang.org/cl/4695059
2011-07-14 10:38:15 +10:00
Yuval Pavel Zholkover
0bf36ce8fb os: Plan 9: add Process.Signal as a way to send notes.
Move the Signal interface from exec_posix.go to exec.go.
Remove some unsused code from file_plan9.go.

R=fshahriar, rsc
CC=golang-dev
https://golang.org/cl/4683044
2011-07-13 16:29:37 -07:00
Alex Brainman
dde435587d runtime: correct FixedStack value (fixes windows build)
Fixes #2068.

R=rsc
CC=golang-dev
https://golang.org/cl/4705046
2011-07-14 09:13:39 +10:00
Lucio De Re
3f2cc8ba7e cc: fixes for Plan 9 build
<ctype.h> has been moved into <u.h>, specifically to be able to
drop it from these modules.

Will someone check platforms other than UBUNTU/386, please?

R=bsiegert, rsc
CC=golang-dev
https://golang.org/cl/4648078
2011-07-13 16:01:29 -07:00
Brad Fitzpatrick
8ba48fb5ca fix build from e904b6784768 breakage
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4696047
2011-07-13 15:48:57 -07:00
Russ Cox
aebfd63cd9 syscall: add Flock on Linux
Fixes #2069.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4703048
2011-07-13 15:34:36 -07:00
Russ Cox
a16baf0777 syscall: change missing from windows net fixes
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4701045
2011-07-13 15:34:21 -07:00
Robert Griesemer
f4acaa8ecd filepath/path: fix a comment
R=bradfitz
CC=golang-dev
https://golang.org/cl/4704047
2011-07-13 15:10:50 -07:00
Rob Pike
469e333106 exp/template: tweak behavior of booleans.
Russ suggested this technique, making the "and" and "or" functions handier.
But it's hacky, and I can be talked out of it.

R=dsymonds, rsc
CC=golang-dev
https://golang.org/cl/4698044
2011-07-14 07:59:04 +10:00
Rob Pike
c3344d61bd exp/template: allow niladic methods inside chained field references.
Also really fix the bug about dot vs. receivers.

R=rsc, r
CC=golang-dev
https://golang.org/cl/4705047
2011-07-14 07:52:07 +10:00
Yasuhiro Matsumoto
2012290c7e http: fix Content-Type of file extension.
ServeFile() pass empty string to serveFile(). serveFile() should get
file extension via joining root and filename.

R=bradfitz, rsc
CC=golang-dev
https://golang.org/cl/4654089
2011-07-13 14:39:33 -07:00
Wei Guangjing
350504559e net: windows/amd64 port
R=rsc, alex.brainman
CC=golang-dev
https://golang.org/cl/3790044
2011-07-13 12:44:21 -07:00
Matthew Horsnell
932db13e93 debug/elf: Read ELF Program headers.
NewFile has been fixed to read ELF Program headers into the structs.
Added test coverage.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4628062
2011-07-13 12:34:29 -07:00
Wei Guangjing
a6e60916c1 runtime: stdcall_raw stack 16byte align for Win64
R=alex.brainman, rsc
CC=golang-dev
https://golang.org/cl/4681049
2011-07-13 11:44:44 -07:00
Dmitriy Vyukov
86a659cad0 runtime: fix data race during Itab hash update/lookup
The data race is on newly published Itab nodes, which are
both unsafely published and unsafely acquired. It can
break on IA-32/Intel64 due to compiler optimizations
(most likely not an issue as of now) and on ARM due to
hardware memory access reorderings.

R=rsc
CC=golang-dev
https://golang.org/cl/4673055
2011-07-13 11:22:41 -07:00
Brad Fitzpatrick
dcdaeebdfb docs: fix wrong it's -> its
R=golang-dev, iant
CC=golang-dev
https://golang.org/cl/4702046
2011-07-13 10:54:51 -07:00
Sam Thorogood
e3a773479d exp/regexp/syntax: add Prog.NumCap
R=rsc, r
CC=golang-dev
https://golang.org/cl/4662083
2011-07-13 10:15:00 -07:00
Robert Griesemer
4c986d86b1 exp/eval, exp/ogle: remove packages eval and ogle
An externally maintained version of exp/eval can
be found at: https://bitbucket.org/binet/go-eval/ .

R=golang-dev, r, rsc
CC=golang-dev
https://golang.org/cl/4695047
2011-07-13 09:40:53 -07:00
Bobby Powers
050d839df0 gob: register more slice types
Without explicitly registering slice types, gob fails to encode
map[string]interface{} instances where the value is a slice,
failing with a message such as:

  gob: type not registered for interface: []string

Fixes #2065.

R=golang-dev, gri, r
CC=golang-dev
https://golang.org/cl/4672056
2011-07-13 17:12:17 +10:00
Nigel Tao
d360e0213d html: update section references in comments to the latest HTML5 spec.
R=r
CC=golang-dev
https://golang.org/cl/4699048
2011-07-13 16:53:02 +10:00
Rob Pike
7aa1a1a64d exp/template: doc and API changes suggested by rsc.
- template invocation is by string constant only.
- NewSet is gone.
- no global Funcs
- writer is now first arg to Execute

R=rsc, r
CC=golang-dev
https://golang.org/cl/4700043
2011-07-13 15:58:31 +10:00
Rob Pike
2e9388e321 exp/template: add Set.AddSet and Set.Union.
Document and test that Set.Parse can be called multiple times.

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/4703044
2011-07-13 13:50:05 +10:00
Rob Pike
41efecf51c exp/template: allow variables as template names.
Just an oversight it wasn't already there.
Thanks to islandberry@live.com for pointing out the omission.

R=golang-dev, dsymonds
CC=golang-dev, islandberry
https://golang.org/cl/4703043
2011-07-13 13:21:18 +10:00
David Anderson
f1df07bf6a 5l, 6l, 8l: Add a PT_LOAD PHDR entry for the PHDR.
Per the TIS ELF spec, if a PHDR entry is present in the
program header table, it must be part of the memory image of
the program. Failure to do this makes elflint complain, and
causes some tools that manipulate ELF to crash.

R=iant, rsc
CC=dave, golang-dev
https://golang.org/cl/4650067
2011-07-12 17:49:55 -07:00
Robert Griesemer
75780f99f4 csv: fix spelling errors in comments
Fixes #2066.

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/4699045
2011-07-12 17:45:29 -07:00
Quan Yong Zhai
fe9991e8b2 runtime: replace runtime.mcpy with runtime.memmove
faster string operations, and more

tested on linux/386

runtime_test.BenchmarkSliceToString                    642          532  -17.13%
runtime_test.BenchmarkStringToSlice                    636          528  -16.98%
runtime_test.BenchmarkConcatString                    1109          897  -19.12%

R=r, iant, rsc
CC=golang-dev
https://golang.org/cl/4674042
2011-07-12 17:30:40 -07:00
Wei Guangjing
f340b3de5a debug/pe: fixes ImportedSymbols for Win64.
R=golang-dev, alex.brainman
CC=golang-dev
https://golang.org/cl/4639086
2011-07-12 11:29:38 -07:00
Robert Hencke
67edf9cb87 gc: make size of struct{} and [0]byte 0 bytes
Fixes #1949.

R=iant, rsc
CC=golang-dev
https://golang.org/cl/4634124
2011-07-12 11:12:06 -07:00
Dmitriy Vyukov
86e7323bdf runtime: eliminate false sharing during stack growth
Remove static variable from runtime·oldstack().
Benchmark results on HP Z600 (2 x Xeon E5620, 8 HT cores, 2.40GHz)
are as follows (with CL 4657091 applied):
benchmark                                        old ns/op    new ns/op    delta
BenchmarkStackGrowth                               1183.00      1180.00   -0.25%
BenchmarkStackGrowth-2                             1249.00      1211.00   -3.04%
BenchmarkStackGrowth-4                              954.00       805.00  -15.62%
BenchmarkStackGrowth-8                              701.00       683.00   -2.57%
BenchmarkStackGrowth-16                             465.00       415.00  -10.75%

R=rsc
CC=golang-dev
https://golang.org/cl/4693042
2011-07-12 10:56:21 -07:00
Russ Cox
88e0c0517a runtime: fix comment (lost in shuffle)
TBR=dvyukov
CC=golang-dev
https://golang.org/cl/4710041
2011-07-12 09:26:05 -07:00
Dmitriy Vyukov
c9152a8568 runtime: eliminate contention during stack allocation
Standard-sized stack frames use plain malloc/free
instead of centralized lock-protected FixAlloc.
Benchmark results on HP Z600 (2 x Xeon E5620, 8 HT cores, 2.40GHz)
are as follows:
benchmark                                        old ns/op    new ns/op    delta
BenchmarkStackGrowth                               1045.00       949.00   -9.19%
BenchmarkStackGrowth-2                             3450.00       800.00  -76.81%
BenchmarkStackGrowth-4                             5076.00       513.00  -89.89%
BenchmarkStackGrowth-8                             7805.00       471.00  -93.97%
BenchmarkStackGrowth-16                           11751.00       321.00  -97.27%

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4657091
2011-07-12 09:24:32 -07:00
Dmitriy Vyukov
daaf29cf93 sync: improve RWMutex performance
The new implementation features wait-free
fast path for readers which significantly improves
performance/scalability on read-mostly workloads.
Benchmark results on HP Z600 (2 x Xeon E5620, 8 HT cores, 2.40GHz)
are as follows:
benchmark                              old ns/op    new ns/op    delta
BenchmarkRWMutexUncontended               179.00        96.60  -46.03%
BenchmarkRWMutexUncontended-2              89.10        49.10  -44.89%
BenchmarkRWMutexUncontended-4              44.70        24.70  -44.74%
BenchmarkRWMutexUncontended-8              23.30        12.90  -44.64%
BenchmarkRWMutexUncontended-16             16.80         8.75  -47.92%
BenchmarkRWMutexWrite100                   79.60        26.80  -66.33%
BenchmarkRWMutexWrite100-2                305.00        33.00  -89.18%
BenchmarkRWMutexWrite100-4                245.00       113.00  -53.88%
BenchmarkRWMutexWrite100-8                330.00       147.00  -55.45%
BenchmarkRWMutexWrite100-16               371.00       152.00  -59.03%
BenchmarkRWMutexWrite10                    78.30        29.80  -61.94%
BenchmarkRWMutexWrite10-2                 348.00       165.00  -52.59%
BenchmarkRWMutexWrite10-4                 447.00       199.00  -55.48%
BenchmarkRWMutexWrite10-8                 564.00       180.00  -68.09%
BenchmarkRWMutexWrite10-16                492.00       192.00  -60.98%
BenchmarkRWMutexWorkWrite100             1077.00      1037.00   -3.71%
BenchmarkRWMutexWorkWrite100-2            659.00       596.00   -9.56%
BenchmarkRWMutexWorkWrite100-4            509.00       361.00  -29.08%
BenchmarkRWMutexWorkWrite100-8            603.00       351.00  -41.79%
BenchmarkRWMutexWorkWrite100-16           750.00       607.00  -19.07%
BenchmarkRWMutexWorkWrite10               990.00       951.00   -3.94%
BenchmarkRWMutexWorkWrite10-2            1119.00      1070.00   -4.38%
BenchmarkRWMutexWorkWrite10-4            1300.00      1199.00   -7.77%
BenchmarkRWMutexWorkWrite10-8            1424.00      1291.00   -9.34%
BenchmarkRWMutexWorkWrite10-16           1981.00      1786.00   -9.84%

R=rsc
CC=golang-dev
https://golang.org/cl/4671051
2011-07-12 09:24:21 -07:00
Adam Langley
9f4c288c16 hash/crc32: add SSE4.2 support
Using the CRC32 instruction speeds up the Castagnoli computation by
about 20x on a modern Intel CPU.

R=rsc
CC=golang-dev
https://golang.org/cl/4650072
2011-07-12 09:29:24 -04:00
Alex Brainman
0f8678a747 go/build: include processing of .c files for cgo packages
R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/4696041
2011-07-12 17:27:07 +10:00
Nigel Tao
851ded9660 image: remove superfluous if condition.
DrawMask already returns early if r.Empty().

R=r
CC=golang-dev
https://golang.org/cl/4703041
2011-07-12 17:02:55 +10:00
Nigel Tao
caaa6764fa image: re-organize draw.go.
There are no behavioral changes, only some copy-and-pastes.

Before, drawFillOver was next to drawCopyOver.

After, drawFillOver is next to drawFillSrc, which is more similar to
drawFillOver than drawCopyOver is.

Similarly, drawCopyOver is now next to drawCopySrc, etc.

R=r
CC=golang-dev
https://golang.org/cl/4695045
2011-07-12 16:56:29 +10:00
Nigel Tao
8bd5089513 image: change Pix from []FooColor to []uint8.
Some benchmark numbers below. The image/draw fast-paths show dramatic
improvement, the generic slow-paths show a smaller slow-down.

BEFORE
png.BenchmarkEncodePaletted      200       8203800 ns/op      37.45 MB/s
png.BenchmarkEncodeRGBOpaque         100      26940440 ns/op      45.61 MB/s
png.BenchmarkEncodeRGBA       20      73821000 ns/op      16.65 MB/s
jpeg.BenchmarkEncodeRGBOpaque         50      35598640 ns/op      34.52 MB/s
draw.BenchmarkFillOver	     500	   4024226 ns/op
draw.BenchmarkFillSrc	   10000	    152736 ns/op
draw.BenchmarkCopyOver	     500	   3452824 ns/op
draw.BenchmarkCopySrc	   50000	     73218 ns/op
draw.BenchmarkNRGBAOver	     500	   3941234 ns/op
draw.BenchmarkNRGBASrc	    1000	   2484400 ns/op
draw.BenchmarkYCbCr	    1000	   2609005 ns/op
draw.BenchmarkGlyphOver	    2000	   1169575 ns/op
draw.BenchmarkRGBA	     200	   9031390 ns/op
draw.BenchmarkGenericOver	      50	  34636620 ns/op
draw.BenchmarkGenericMaskOver	     100	  16561150 ns/op
draw.BenchmarkGenericSrc	     100	  13873760 ns/op
draw.BenchmarkGenericMaskSrc	     100	  25198860 ns/op

AFTER
png.BenchmarkEncodePaletted      200       8206600 ns/op      37.43 MB/s
png.BenchmarkEncodeRGBOpaque         100      26129530 ns/op      47.03 MB/s
png.BenchmarkEncodeRGBA       20      75776750 ns/op      16.22 MB/s
jpeg.BenchmarkEncodeRGBOpaque         50      37192940 ns/op      33.04 MB/s
draw.BenchmarkFillOver	     500	   3008134 ns/op
draw.BenchmarkFillSrc	   10000	    154214 ns/op
draw.BenchmarkCopyOver	    1000	   2169988 ns/op
draw.BenchmarkCopySrc	   50000	     73095 ns/op
draw.BenchmarkNRGBAOver	    1000	   2491079 ns/op
draw.BenchmarkNRGBASrc	    2000	   1361244 ns/op
draw.BenchmarkYCbCr	    1000	   2554269 ns/op
draw.BenchmarkGlyphOver	    2000	   1042225 ns/op
draw.BenchmarkRGBA	     100	  10233340 ns/op
draw.BenchmarkGenericOver	      50	  38421560 ns/op
draw.BenchmarkGenericMaskOver	     100	  17521190 ns/op
draw.BenchmarkGenericSrc	     100	  16351200 ns/op
draw.BenchmarkGenericMaskSrc	     100	  26538190 ns/op

R=r
CC=golang-dev
https://golang.org/cl/4675076
2011-07-12 16:39:38 +10:00
Nigel Tao
6ec6f1ef62 image/draw: add benchmarks.
R=r
CC=golang-dev
https://golang.org/cl/4695043
2011-07-12 16:17:02 +10:00
Dmitriy Vyukov
013ad89c9b runtime: eliminate false sharing on runtime.goidgen
runtime.goidgen can be quite frequently modified and
shares cache line with the following variables,
it leads to false sharing.
50c6b0 b nfname
50c6b4 b nfunc
50c6b8 b nfunc$17
50c6bc b nhist$17
50c6c0 B runtime.checking
50c6c4 B runtime.gcwaiting
50c6c8 B runtime.goidgen
50c6cc B runtime.gomaxprocs
50c6d0 B runtime.panicking
50c6d4 B strconv.IntSize
50c6d8 B src/pkg/runtime/_xtest_.ss
50c6e0 B src/pkg/runtime/_xtest_.stop
50c6e8 b addrfree
50c6f0 b addrmem
50c6f8 b argv

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4673054
2011-07-12 01:25:14 -04:00
Dmitriy Vyukov
909f31872a runtime: eliminate false sharing on random number generators
Use machine-local random number generator instead of
racy global ones.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4674049
2011-07-12 01:23:58 -04:00
Dmitriy Vyukov
f9f21aa1fb runtime: fix data race on runtime·maxstring
The data race can lead to erroneous output of
"[invalid string]" instead of a string.

R=golang-dev
CC=golang-dev
https://golang.org/cl/4678049
2011-07-12 01:21:06 -04:00
Alex Brainman
8ed9fc600c 6l: change default output name to 6.out.exe on windows
R=golang-dev, vcc.163
CC=golang-dev
https://golang.org/cl/4670049
2011-07-12 14:22:48 +10:00
Brad Fitzpatrick
ce3c3953be http: support for periodic flushing in ReverseProxy
Fixes #2012

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/4662091
2011-07-11 20:56:21 -07:00
Rob Pike
7c47741811 exp/template: make numbers adhere to Go's rules for ideal constants.
Without further type informatnion, 1.0 is a float and an integer
must fit in an int.

R=rsc
CC=golang-dev
https://golang.org/cl/4696042
2011-07-12 13:15:26 +10:00
Alex Brainman
05c89edcd3 go/build: make Nuke comment say what it does
R=rsc
CC=golang-dev
https://golang.org/cl/4697041
2011-07-12 13:08:22 +10:00
Brad Fitzpatrick
1722ec22cd cgi: close stdout reader pipe when finished
This causes the child, if still writing, to get an error or
SIGPIPE and most likely exit so our subsequent wait can
finish.

A more guaranteed fix would be putting a time limit on the
child's overall execution, but this fixes the problem
I was having.

Fixes #2059

R=rsc
CC=golang-dev
https://golang.org/cl/4675081
2011-07-11 15:59:27 -07:00
Brad Fitzpatrick
d53385fd0c os: don't permit Process.Signal after a successful Wait
R=dsymonds, rsc
CC=golang-dev
https://golang.org/cl/4689043
2011-07-11 15:47:42 -07:00
Brad Fitzpatrick
d1f4e0d14e exec: closeAfterWait append bug
Wasn't actually eager closing the fds as a result of the
copy/paste bug. (GC was doing it instead)

R=rsc
CC=golang-dev
https://golang.org/cl/4671057
2011-07-11 14:46:46 -07:00
Evan Martin
2f69a73591 json: encode \r and \n in strings as e.g. "\n", not "\u000A"
This is allowed by the JSON spec and is shorter/easier to read.

R=golang-dev, bradfitz, rsc
CC=golang-dev
https://golang.org/cl/4678046
2011-07-11 07:31:08 -07:00
Brad Fitzpatrick
f19b24a182 strconv: handle [-+]Infinity in atof
This is the form as returned by Postgres, as well
as JavaScript.

I've tried and failed to find authorative docs online
about the proper string serialization, if any.

R=golang-dev, gri, r, r, rsc
CC=golang-dev
https://golang.org/cl/4650077
2011-07-11 07:25:45 -07:00
Rob Pike
d366c36945 exp/template: fix bug in argument evaluation.
Must keep dot and the receiver separate - variables broke that symmetry.
Also clean up function invocation and rename "data" to "dot" for clarity.

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/4678048
2011-07-11 18:06:24 +10:00
Alex Brainman
3c6a7b3fc5 go/build: use os.MkdirAll to create directories
Replaces "mkdir -p ..." command, as Windows mkdir command
does not support -p flag. Also, is simpler and faster then
launching new process.

R=golang-dev, mattn.jp, adg, bradfitz, rsc
CC=golang-dev
https://golang.org/cl/4626087
2011-07-11 15:40:41 +10:00
Rob Pike
7b79b3b244 exp/template: fields and methods on variables.
Not strictly necessary (you could achieve the same, clumsily,
via with blocks) but great to have: $x.Field, $y.Method.

R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/4678047
2011-07-11 15:23:38 +10:00
Rob Pike
96bbcc4256 exp/template: documentation glitches and typos.
Also explain that len(v)==0 makes v a 'zero value'
in template execution.

R=golang-dev, dsymonds, adg, r
CC=golang-dev
https://golang.org/cl/4691041
2011-07-11 14:43:21 +10:00
Rob Pike
0027dc91b0 exp/template: simpler parse of char constants.
We can avoid the check against empty constants (''),
which UnquoteChar doesn't handle well, by leaving on
the trailing quote and seeing that's all we have left at the end.

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/4657090
2011-07-11 12:36:10 +10:00
Rob Pike
bf9531f80b exp/template: character constants.
Easier to implement than to justify leaving them out.

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/4662089
2011-07-11 11:46:22 +10:00
Rob Pike
e7030e7fef exp/template: static check for defined variables.
Worth catching at parse time rather than execution. Plus it's really easy.

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/4641100
2011-07-11 10:01:15 +10:00
Rob Pike
1fe9c9a78f exp/eval: delete binary
Mistakenly checked in.
Fixes #2058.

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/4670057
2011-07-11 09:36:17 +10:00
Rob Pike
e44853c969 flag: make -help nicer.
- suppress the print that -help is not defined.
- return a special error code if -help is set
- do not change behavior if an explict "help" flag is defined.

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/4641099
2011-07-11 09:35:50 +10:00
Rob Pike
abae847134 exp/template: add functions print and println.
R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/4687041
2011-07-11 09:19:18 +10:00
Rob Pike
4acddca41b exp/template: package documentation
R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/4675072
2011-07-10 20:56:26 +10:00
Nigel Tao
87d9e7e166 image: change Pix[0] to mean top-left corner of an image's Rect instead
of the origin.

image/png and image/jpeg benchmarks show no significant changes.

The image/draw changes suggest to me that making a gofix for this is not
feasible. People are just going to have to make manual fixes.

R=r
CC=golang-dev
https://golang.org/cl/4681044
2011-07-10 14:29:47 +10:00
Andrew Gerrand
4d47600f46 archive/zip: add Writer
R=bradfitz, dchest, r, rsc
CC=golang-dev
https://golang.org/cl/4523077
2011-07-10 11:30:16 +10:00
Evan Martin
e45b3213cd multipart: use textproto to handle multiline header
R=bradfitz
CC=golang-dev
https://golang.org/cl/4686044
2011-07-09 15:18:31 -07:00
Andrew Balholm
b053400e37 http: update triv.go with gofix
Sample code in triv.go wouldn't compile because it didn't use the new
FileSystem interface.
This was discussed on golang-nuts on July 7.
https://groups.google.com/forum/#!topic/golang-nuts/NMhZk3Ft_Vc

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/4684044
2011-07-09 15:10:39 -07:00
Rob Pike
3987b91213 exp/template: better template invocation
1) Make the value optional ({{template "foo"}})
2) Allow the template identifier to be a thing of type *Template.
The second makes it easy to drop templates in to a set dynamically
during invocation.

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/4671056
2011-07-10 07:32:01 +10:00
Rob Pike
e86d727e60 exp/template: vars as arguments to functions and methods.
That should be it, bugs aside.

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/4671055
2011-07-09 17:11:35 +10:00
Rob Pike
58baf64827 exp/template: variable evaluation.
Still need to do static checking of declarations during parse.

R=golang-dev, dsymonds, r
CC=golang-dev
https://golang.org/cl/4667070
2011-07-09 12:05:39 +10:00
Rob Pike
bbf5eb5ba2 exp/template: delete upward evaluation.
It was an ill-advised carryover from the previous template package.
Also clean up function evaluation.
Also add a Name method to Template.

R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/4657088
2011-07-09 08:59:56 +10:00
Rob Pike
d3d08e1e3a exp/template: forgot to allow . as a function argument
R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/4671053
2011-07-08 18:25:46 +10:00
Rob Pike
b8c664297b exp/template: parse variables and declarations
R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/4631099
2011-07-08 17:54:16 +10:00
Rob Pike
ee14989e43 exp/template: lex variables
Variables start with'$' and are declared with ':='.

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/4662084
2011-07-08 17:53:55 +10:00
Rob Pike
02039b6345 exp/template: add a tree-walking example to the test.
Also fix a comment formatting glitch.

R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/4672054
2011-07-08 16:49:06 +10:00
Andrew Gerrand
ad58dc9d26 exp/template: the must-have MustParse functions
R=r
CC=golang-dev
https://golang.org/cl/4641096
2011-07-08 16:01:32 +10:00
Rob Pike
a852981d17 exp/template: allow fields and methods to be found in parent structs.
R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/4657085
2011-07-08 15:22:05 +10:00
Andrew Gerrand
5bcbcab311 sort: rename helpers: s/Sort// in sort.Sort[Float64s|Ints|Strings]
Includes 'sorthelpers' gofix and updates to tree.

R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/4631098
2011-07-08 10:52:50 +10:00
David Symonds
e67a2504a1 gob: export fields in structs in the package documentation.
R=r
CC=golang-dev
https://golang.org/cl/4648075
2011-07-08 10:51:56 +10:00
Brad Fitzpatrick
3236097ab0 cgi: don't depend on CGI.pm for tests
CGI.pm used to be part of the Perl core,
but some distros now bundle perl-core
and perl-modules separately.

It's not worth depending on.

R=golang-dev, mattn.jp
CC=golang-dev
https://golang.org/cl/4675063
2011-07-07 17:45:28 -07:00
Nigel Tao
b39afde805 image/draw: add draw tests where the destination image doesn't start
at (0, 0).

Also refactor the test to use the SubImage method rather than monkeying
with an image's Pix and Rect fields.

R=r
CC=golang-dev
https://golang.org/cl/4678045
2011-07-08 09:54:21 +10:00
Adam Langley
d1d466f620 crypto/x509: prevent chain cycles in Verify
It's possible to include a self-signed root certificate as an
intermediate and push Verify into a loop.

I already had a test for this so I thought that it was ok, but it
turns out that the test was void because the Verisign root certificate
doesn't contain the "IsCA" flag and so it wasn't an acceptable
intermediate certificate for that reason.

R=bradfitz
CC=golang-dev
https://golang.org/cl/4657080
2011-07-07 18:06:50 -04:00
Nigel Tao
03f987c8ea image: tighten Paletted.Opaque to check only those palette entries
in the image, not all palette entries.

R=r
CC=golang-dev
https://golang.org/cl/4672049
2011-07-07 16:32:19 +10:00
Rob Pike
07c9a92564 os: fix documentation for FileInfo.Name.
It's the base name, not the full name.
Fixes #2047.

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/4680041
2011-07-07 16:05:38 +10:00
Rob Pike
238274ede0 exp/template: handle pointers and values in empty interfaces.
R=golang-dev, r, mattn.jp
CC=golang-dev
https://golang.org/cl/4664064
2011-07-07 14:51:35 +10:00
Rob Pike
8d538c6d3d exp/template: change the name from 'metacharacter' to 'delimiter',
because that's what they are.
No semantic change.

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/4675060
2011-07-07 10:56:33 +10:00
Gideon Jan-Wessel Redelinghuys
582d6e5848 crypto/openpgp: fixed dangerous use of for loop variable
In function readSignedMessage a pointer to for loop variable 'key' was incorrectly being assigned
to md.SignedBy. Changed so that md.SignedBy is pointing to the 'more correct' memory position.

R=golang-dev, r, agl
CC=golang-dev
https://golang.org/cl/4631088
2011-07-07 10:49:03 +10:00
Alex Brainman
e71fc0c1fe syscall: rearrange windows code so 386 and amd64 can share files
R=golang-dev, r
CC=golang-dev, vcc.163
https://golang.org/cl/4641093
2011-07-07 10:40:45 +10:00
Rob Pike
46ecd6f141 exp/template: index: forgot the always last-to-arrive uintptr.
R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/4636087
2011-07-07 07:00:48 +10:00
Adam Langley
1aa571d38b asn1: support T61 and UTF8 string.
There is no end to the kitchen sink of string types in ASN.1.

Fixes #1953.

R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/4672045
2011-07-06 16:25:44 -04:00
Adam Langley
502589e030 crypto/tls: fix generate_cert.go
Fixes #2030.

R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/4635092
2011-07-06 16:22:21 -04:00
Ian Lance Taylor
7b0bb48056 json: fix test if rand returns 0.
Fixes test when run with gccgo using optimization, which
changes the order of the calls to rand.

R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/4639101
2011-07-06 13:00:54 -07:00
Rob Pike
6732bd3526 exp/template: index function for arrays, slices, and maps.
R=golang-dev, adg, r
CC=golang-dev
https://golang.org/cl/4643072
2011-07-06 22:27:06 +10:00
Rob Pike
64228e36a4 exp/template: silence test noise (but add a flag to put it back)
Also delete a TODO and clean up a little evaluation code.

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/4643071
2011-07-06 17:46:36 +10:00
David Symonds
33705ddea1 exp/template: add a JavaScript escaper.
R=r
CC=golang-dev
https://golang.org/cl/4671048
2011-07-06 16:51:49 +10:00
Rob Pike
a33cc423b4 exp/template: allow an empty interface value to be the target of range, etc.
We extract the concrete value inside.

R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/4677041
2011-07-06 16:40:46 +10:00
Rob Pike
381a555f40 exp/template: improve error message for non-exported field.
R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/4636086
2011-07-06 15:56:39 +10:00
Rob Pike
a8e5db9449 maketables: update debugging data.
This is unused in the generation of the tables, but was incorrect if we ever needed it.
Also update the reference to the document.

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/4626097
2011-07-06 15:35:23 +10:00
David Symonds
9d5ed1744a exp/template: add missing dotNode case.
R=r
CC=golang-dev
https://golang.org/cl/4672044
2011-07-06 15:14:10 +10:00
Rob Pike
9495dd31d2 exp/template: fixes and updates.
- fix line numbers - forgot to update state.line during execution
- add a comment convention {{/* comment */}}
- set.Template returns the named template in the set
- set.Execute executes the named template in the set
- use a local methodByName so this package can be used with earlier release of reflect.
- use initial cap to detect exported names

R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/4668054
2011-07-06 14:46:41 +10:00
David Symonds
d45ba2c146 exp/template: remove debugging dreg.
R=r, gri
TBR=r
CC=golang-dev
https://golang.org/cl/4671047
2011-07-06 14:18:46 +10:00
Yasuhiro Matsumoto
1e6d946594 html: parse start tags that aren't explicitly otherwise dealt with.
R=golang-dev, nigeltao
CC=golang-dev
https://golang.org/cl/4626080
2011-07-06 13:08:52 +10:00
Rob Pike
329990d525 exp/template: remove the need for a goroutine.
R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/4626095
2011-07-06 11:02:53 +10:00
Rob Pike
4657d7d7db exp/template: remove the visibility of the token channel from the parser.
R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/4675053
2011-07-06 10:13:53 +10:00
Luuk van Dijk
13d048a221 gc: fix %N for OGOTO nodes.
6g -W crashed on any source with a goto. this fixes that.

R=rsc, r
CC=golang-dev
https://golang.org/cl/4675052
2011-07-06 00:02:03 +02:00
Rob Pike
eea5443572 exp/template: add templates to sets; boolean logic.
R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/4670045
2011-07-05 17:05:15 +10:00
Andrew Gerrand
b7db4fef22 godoc: ignore directories that begin with '.'
Fixes #2017.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4675047
2011-07-05 17:00:18 +10:00
Rob Pike
5b1658232e exp/template: statically check that functions names have been defined.
R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/4675046
2011-07-05 16:02:34 +10:00
Fazlul Shahriar
bedee318d5 os: fix build for Plan 9
R=golang-dev, alex.brainman
CC=golang-dev
https://golang.org/cl/4657074
2011-07-05 16:01:29 +10:00
Rob Pike
cc9fed7c1a exp/template: add an html escaping function.
R=golang-dev, dsymonds, adg
CC=golang-dev
https://golang.org/cl/4626092
2011-07-05 15:58:54 +10:00
Nigel Tao
104f57ad39 image: add a test for filling sub-images.
R=r
CC=golang-dev
https://golang.org/cl/4626091
2011-07-05 14:42:31 +10:00
Rob Pike
b177c97803 exp/template: functions
Add the ability to attach functions to template and template sets.
Make variadic functions and methods work.
Still to come: static checking of function names during parse.

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/4643068
2011-07-05 14:23:51 +10:00
Andrew Gerrand
a342006207 goinstall: only report successfully-installed packages to the dashboard
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4657071
2011-07-04 16:05:11 +10:00
Rob Pike
13f889778e exp/template: add template sets, allowing templates to reference one another
R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/4673042
2011-07-04 15:15:47 +10:00
Rob Pike
72efdea20e exp/template: allow complex numbers, add 'with', 'define', and 'template' keywords.
Also simplify the handling of keywords.

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/4639096
2011-07-04 11:50:35 +10:00
Rob Pike
db0e358022 reflect: allow Len on String values.
It's probably just an oversight that it doesn't work,
perhaps caused by analogy with Cap.

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/4634125
2011-07-04 11:45:31 +10:00
Andrew Gerrand
8c7a73bbbb go/build: evaluate symlinks before comparing path to GOPATH
R=golang-dev, r, dsymonds
CC=golang-dev
https://golang.org/cl/4645078
2011-07-04 10:26:03 +10:00
Andrew Gerrand
3cd8f27d79 godoc: search GOPATH for documentation
R=rsc, mattn.jp
CC=golang-dev
https://golang.org/cl/4627065
2011-07-02 14:07:06 +10:00
Andrew Gerrand
72a73198df goinstall: documentation for new remote repository behavior and tweaks
R=rsc, julian
CC=golang-dev
https://golang.org/cl/4642049
2011-07-02 14:05:43 +10:00
Adam Langley
acc284d847 crypto/openpgp: add ability to reserialize keys.
This changes Signature so that parsed signatures can be reserialized
exactly. With this ability we can add Serialize to Entity and also the
ability to sign other public keys.

R=bradfitz
CC=golang-dev
https://golang.org/cl/4627084
2011-07-01 13:53:12 -04:00
Paul Borman
00f7cd4b36 csv: new package
csv reader/writer based on RFC 4180

R=rsc, mattn.jp, r, dchest
CC=golang-dev
https://golang.org/cl/4629085
2011-07-01 12:16:56 -04:00
Russ Cox
1eb656784c 5c, 6c: fix build
R=ken2
CC=golang-dev
https://golang.org/cl/4668049
2011-07-01 11:13:38 -04:00
Alex Brainman
810a2dc077 lib9: stop build if ../version.bash fails
R=golang-dev, m, rsc
CC=golang-dev
https://golang.org/cl/4639091
2011-07-01 10:42:25 -04:00
Wei Guangjing
63b8b948d9 windows: define and use syscall.Handle
Fixes #1487.

R=rsc, alex.brainman, go.peter.90, mikioh.mikioh, mattn.jp
CC=golang-dev
https://golang.org/cl/4600042
2011-07-01 10:18:07 -04:00
Yasuhiro Matsumoto
21efa147ba cmd/goinstall: try to access via https.
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4667051
2011-07-01 10:11:33 -04:00
Lucio De Re
b0449c50f7 8c: fixes for Plan 9 build
8c/gc.h:
. Added <u.h> header.
. Added "lD" pragma for "*Adr" to supplement "D".

8c/swt.c:
. Removed unreferenced "thestring" arguments in Bprint() calls.

cc/acid.c:
cc/com.c:
cc/com64.c:
cc/dcl.c:
cc/scon.c:
. Added <u.h>, required by "cc.h".

cc/bits.c:
. Added <u.h>, required by "cc.h".

cc/cc.h:
. Removed <u.h> and <ctype.h>.
. Added "O" pragma to accept "uint" as well as "int".
. Added new "U" pragma (char *).

cc/cc.y:
. Added <u.h> before <stdio.h> (and "cc.h").

cc/dpchk.c:
cc/mac.c:
. Added <u.h> and <ctype.h>.

cc/funct.c:
. Added <u.h>, required by "cc.h".

cc/godefs.c
. Added <u.h>, required by "cc.h".
. Dropped unused "t" argument in Bprint().

cc/lex.c:
. Added <u.h> and <ctype.h>.
. Removed unnecessary incrementation.
. Changed exit() invocations with exits().

cc/omachcap.c:
. Added <u.h>, required by "cc.h".
. USED(n) for unused argument to machcap().

cc/sub.c:
. Added <u.h> and <ctype.h>.

R=rsc
CC=golang-dev
https://golang.org/cl/4629070
2011-07-01 09:50:24 -04:00
Brad Fitzpatrick
3aa8272e44 fix build; add simplify.go to regexp Makefile
R=rsc
CC=golang-dev
https://golang.org/cl/4643062
2011-06-30 10:45:36 -07:00
Yasuhiro Matsumoto
2f9fbad043 http/cgi: add Handler.Dir to specify working directory
R=golang-dev, bradfitz, alex.brainman
CC=golang-dev
https://golang.org/cl/4635042
2011-06-30 09:44:23 -07:00
Dmitriy Vyukov
dd2074c82a sync: improve Mutex to allow successive acquisitions
This implementation allows a goroutine to do successive acquisitions
of a mutex even if there are blocked goroutines.
Moreover, it allows a newcomer goroutine to acquire a mutex ahead of
blocked goroutines (that is, it does not enforce FIFO).
On implementation level it's achieved by separating waiter count and
locked flag.
Benchmark results on HP Z600 (2 x Xeon E5620, 8 HT cores, 2.40GHz)
are as follows (with 4631059 "replace Semacquire/Semrelease implementation"
patch applied):
benchmark                                        old ns/op    new ns/op    delta
sync_test.BenchmarkMutexUncontended                  24.10        25.40   +5.39%
sync_test.BenchmarkMutexUncontended-2                12.00        13.00   +8.33%
sync_test.BenchmarkMutexUncontended-4                 6.06         6.83  +12.71%
sync_test.BenchmarkMutexUncontended-8                 3.63         3.60   -0.83%
sync_test.BenchmarkMutexUncontended-16                2.38         2.49   +4.62%

sync_test.BenchmarkMutex                             25.00        26.40   +5.60%
sync_test.BenchmarkMutex-2                          231.00        49.00  -78.79%
sync_test.BenchmarkMutex-4                          259.00       114.00  -55.98%
sync_test.BenchmarkMutex-8                          641.00       110.00  -82.84%
sync_test.BenchmarkMutex-16                        1380.00        96.30  -93.02%

sync_test.BenchmarkMutexSlack                        24.80        26.20   +5.65%
sync_test.BenchmarkMutexSlack-2                     210.00       106.00  -49.52%
sync_test.BenchmarkMutexSlack-4                     453.00       119.00  -73.73%
sync_test.BenchmarkMutexSlack-8                    1024.00       105.00  -89.75%
sync_test.BenchmarkMutexSlack-16                   1291.00        91.90  -92.88%

sync_test.BenchmarkMutexWork                        796.00       796.00   +0.00%
sync_test.BenchmarkMutexWork-2                      399.00       401.00   +0.50%
sync_test.BenchmarkMutexWork-4                      216.00       212.00   -1.85%
sync_test.BenchmarkMutexWork-8                     1547.00       196.00  -87.33%
sync_test.BenchmarkMutexWork-16                    2754.00       287.00  -89.58%

sync_test.BenchmarkMutexWorkSlack                   792.00       800.00   +1.01%
sync_test.BenchmarkMutexWorkSlack-2                 430.00       420.00   -2.33%
sync_test.BenchmarkMutexWorkSlack-4                 467.00       230.00  -50.75%
sync_test.BenchmarkMutexWorkSlack-8                1860.00       273.00  -85.32%
sync_test.BenchmarkMutexWorkSlack-16               3029.00       294.00  -90.29%

R=rsc
CC=golang-dev
https://golang.org/cl/4631075
2011-06-30 11:13:29 -04:00
Russ Cox
b4cae4aee2 exp/regexp/syntax: finish Regexp manipulation
Except for the inevitable bug fixes, the Regexp code is done.

R=sam.thorogood, r
CC=golang-dev
https://golang.org/cl/4635082
2011-06-30 10:26:22 -04:00
Russ Cox
a809abafa5 govet: automate test
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4629084
2011-06-30 10:26:11 -04:00
Yasuhiro Matsumoto
054cf72b56 html: fix nesting when parsing a close tag.
R=nigeltao
CC=golang-dev
https://golang.org/cl/4636067
2011-06-30 23:16:33 +10:00
Julian Phillips
8ffbc4016a goinstall: Add support for generic hosts using special import form
This change extends goinstall to support "magic" package names of the
form:
        <host>/<repo>.<vcs>/<path>

Where <host> is the hostname, <repo> the path to the repository, <vcs>
the type of vcs (git, hg, bzr or svn), and <path> is the path inside the
repository that contains the source code for the package.

For example: "example.com/pub/foo.hg/src" means download the Mercurial
repository at either pub/foo.hg or pub/foo from example.com and then
build and install the source files from src inside the repository
checkout.

Repositories on the built-in hostings sites (github, bitbucket,
launchpad and googlecode) must still use the old form (i.e.
github.com/xxx/yyy.git/src will be rejected).

R=adg, rsc
CC=golang-dev
https://golang.org/cl/4626064
2011-06-30 18:54:53 +10:00
Andrew Gerrand
4dfdacd2bd build: make version.bash aware of branches
Fixes #2026.

R=bradfitz, rsc
CC=golang-dev
https://golang.org/cl/4645074
2011-06-30 15:39:00 +10:00
Brad Fitzpatrick
73896bdc85 net: break up and simplify Dial a bit
No API or functional change.

R=jacek.masiulaniec, mikioh.mikioh, rsc
CC=golang-dev
https://golang.org/cl/4630081
2011-06-29 21:56:13 -07:00
Rob Pike
de36d19dfb time: zero-pad two-digit years.
Fixes #2024

R=adg, dsymonds
CC=golang-dev
https://golang.org/cl/4635083
2011-06-30 14:05:29 +10:00
David Symonds
ba8e61d833 os: use a different symbol from syscall in mkunixsignals.sh.
Open is more likely to be present than Syscall.

R=rsc
CC=golang-dev
https://golang.org/cl/4645073
2011-06-30 13:35:40 +10:00
Brad Fitzpatrick
d980f538d7 http: document that ServerConn and ClientConn are low-level
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4635081
2011-06-29 18:23:38 -07:00
Alex Brainman
7cc5d5db9d run.bash: small fix
Fixes #2025.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4636075
2011-06-30 09:44:16 +10:00
Andrew Balholm
7983ab9d1a http: make NewChunkedReader public
R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/4634112
2011-06-29 12:27:53 -07:00
Russ Cox
b2127a6c99 testing: make ResetTimer not start/stop the timer
R=r
CC=golang-dev
https://golang.org/cl/4626085
2011-06-29 10:26:16 -04:00
Russ Cox
25733a94fd reflect: support for struct tag use by multiple packages
Each package using struct field tags assumes that
it is the only package storing data in the tag.
This CL adds support in package reflect for sharing
tags between multiple packages.  In this scheme, the
tags must be of the form

        key:"value" key2:"value2"

(raw strings help when writing that tag in Go source).

reflect.StructField's Tag field now has type StructTag
(a string type), which has method Get(key string) string
that returns the associated value.

Clients of json and xml will need to be updated.
Code that says

        type T struct {
                X int "name"
        }

should become

        type T struct {
                X int `json:"name"`  // or `xml:"name"`
        }

Use govet to identify struct tags that need to be changed
to use the new syntax.

R=r, r, dsymonds, bradfitz, kevlar, fvbommel, n13m3y3r
CC=golang-dev
https://golang.org/cl/4645069
2011-06-29 09:52:34 -04:00
Wei Guangjing
f83609f642 runtime: windows/amd64 port
R=rsc, alex.brainman, hectorchu, r
CC=golang-dev
https://golang.org/cl/3759042
2011-06-29 17:37:56 +10:00
Robert Hencke
83550f0728 gofix: fixes for os/signal changes
Fixes #1971.

R=adg, rsc
CC=golang-dev
https://golang.org/cl/4630056
2011-06-29 16:44:47 +10:00
Rob Pike
d6f80e1a4c regexp: document that Regexp is thread-safe.
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4667047
2011-06-29 15:41:09 +10:00
Rob Pike
c756a1954c exp/template: boolean constants
R=rsc
CC=golang-dev
https://golang.org/cl/4628073
2011-06-29 15:02:04 +10:00
Russ Cox
7e1a3e9f20 exp/regexp/syntax: incremental concat, alternate
Also reuse of *Regexp nodes.

I believe this is the end of the parser.
The only non-execution code that remains is
the code to expand x{3,5} into simpler operations.

R=sam.thorogood, r
CC=golang-dev
https://golang.org/cl/4629078
2011-06-29 00:55:37 -04:00
Russ Cox
ff4518da17 gc: fix package quoting logic
The decision for when to say "hash/crc32".New instead of
crc32.New in an error was double-counting imports
from different packages or indirect imports, so it was
quoting even when there was no ambiguity.

R=ken2
CC=golang-dev
https://golang.org/cl/4645070
2011-06-28 23:58:35 -04:00
Rob Pike
3a52cf56f8 gob: delete some unused bits from the GobEncoder/GobDecoder code.
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4631076
2011-06-29 13:57:59 +10:00
Rob Pike
c2e0d604ee exp/template: fix build
wrong path in Makefile. why didn't my all.bash fail?
TBR=dsymonds

R=dsymonds
CC=golang-dev
https://golang.org/cl/4630075
2011-06-29 13:55:49 +10:00
Rob Pike
a733f0bcd1 exp/template: use MethodByName, add to build.
R=rsc, adg, r
CC=golang-dev
https://golang.org/cl/4641081
2011-06-29 13:44:13 +10:00
Rob Pike
22484e2262 reflect: MethodByName
It's more common to ask for methods by name than by index, so might
as well make it easy to do so.

R=rsc
CC=golang-dev
https://golang.org/cl/4639083
2011-06-29 13:11:49 +10:00
Mikio Hara
161deaa85c runtime/cgo: fix build
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4629082
2011-06-28 22:26:31 -04:00
Gustavo Niemeyer
cf143e9dbf ld: fix ELF strip by removing overlap of sections
The gosymtab and gopclntab sections were pointing to the proper
data, but that data was already owned by the rodata section.
Some ELF references explicitly prohibit multiple sections from
owning the same data, and strip behaves accordingly.

The data for these sections was moved to after rodata, and the
gosymtab and gopclntab sections now own their respective ranges.

This change makes strip happy both with and without -s being
provided at link time.  Note that it won't remove these sections
because they are still allocated, and that's by design since
they are necessary at runtime for generating proper backtraces
and similar introspection operations.

Unlike the previous behavior, -s will now maintain zero-sized
gosymtab and gopclntab sections.  This makes the implementation
slightly cleaner.

Fixes #1242.

NOTE: Tested on Linux amd64/386/arm only.

R=ality, rsc
CC=golang-dev
https://golang.org/cl/4639077
2011-06-28 22:28:30 +01:00
Russ Cox
d0ac84fe40 cc: broken return is an error, not a warning
R=ken2
CC=golang-dev
https://golang.org/cl/4626081
2011-06-28 16:00:55 -04:00
Dmitriy Vyukov
997c00f991 runtime: replace Semacquire/Semrelease implementation
1. The implementation uses distributed hash table of waitlists instead of a centralized one.
  It significantly improves scalability for uncontended semaphores.
2. The implementation provides wait-free fast-path for signalers.
3. The implementation uses less locks (1 lock/unlock instead of 5 for Semacquire).
4. runtime·ready() call is moved out of critical section.
5. Semacquire() does not call semwake().
Benchmark results on HP Z600 (2 x Xeon E5620, 8 HT cores, 2.40GHz)
are as follows:
benchmark                                        old ns/op    new ns/op    delta
runtime_test.BenchmarkSemaUncontended                58.20        36.30  -37.63%
runtime_test.BenchmarkSemaUncontended-2             199.00        18.30  -90.80%
runtime_test.BenchmarkSemaUncontended-4             327.00         9.20  -97.19%
runtime_test.BenchmarkSemaUncontended-8             491.00         5.32  -98.92%
runtime_test.BenchmarkSemaUncontended-16            946.00         4.18  -99.56%

runtime_test.BenchmarkSemaSyntNonblock               59.00        36.80  -37.63%
runtime_test.BenchmarkSemaSyntNonblock-2            167.00       138.00  -17.37%
runtime_test.BenchmarkSemaSyntNonblock-4            333.00       129.00  -61.26%
runtime_test.BenchmarkSemaSyntNonblock-8            464.00       130.00  -71.98%
runtime_test.BenchmarkSemaSyntNonblock-16          1015.00       136.00  -86.60%

runtime_test.BenchmarkSemaSyntBlock                  58.80        36.70  -37.59%
runtime_test.BenchmarkSemaSyntBlock-2               294.00       149.00  -49.32%
runtime_test.BenchmarkSemaSyntBlock-4               333.00       177.00  -46.85%
runtime_test.BenchmarkSemaSyntBlock-8               471.00       221.00  -53.08%
runtime_test.BenchmarkSemaSyntBlock-16              990.00       227.00  -77.07%

runtime_test.BenchmarkSemaWorkNonblock              829.00       832.00   +0.36%
runtime_test.BenchmarkSemaWorkNonblock-2            425.00       419.00   -1.41%
runtime_test.BenchmarkSemaWorkNonblock-4            308.00       220.00  -28.57%
runtime_test.BenchmarkSemaWorkNonblock-8            394.00       147.00  -62.69%
runtime_test.BenchmarkSemaWorkNonblock-16          1510.00       149.00  -90.13%

runtime_test.BenchmarkSemaWorkBlock                 828.00       813.00   -1.81%
runtime_test.BenchmarkSemaWorkBlock-2               428.00       436.00   +1.87%
runtime_test.BenchmarkSemaWorkBlock-4               232.00       219.00   -5.60%
runtime_test.BenchmarkSemaWorkBlock-8               392.00       251.00  -35.97%
runtime_test.BenchmarkSemaWorkBlock-16             1524.00       298.00  -80.45%

sync_test.BenchmarkMutexUncontended                  24.10        24.00   -0.41%
sync_test.BenchmarkMutexUncontended-2                12.00        12.00   +0.00%
sync_test.BenchmarkMutexUncontended-4                 6.25         6.17   -1.28%
sync_test.BenchmarkMutexUncontended-8                 3.43         3.34   -2.62%
sync_test.BenchmarkMutexUncontended-16                2.34         2.32   -0.85%

sync_test.BenchmarkMutex                             24.70        24.70   +0.00%
sync_test.BenchmarkMutex-2                          208.00        99.50  -52.16%
sync_test.BenchmarkMutex-4                         2744.00       256.00  -90.67%
sync_test.BenchmarkMutex-8                         5137.00       556.00  -89.18%
sync_test.BenchmarkMutex-16                        5368.00      1284.00  -76.08%

sync_test.BenchmarkMutexSlack                        24.70        25.00   +1.21%
sync_test.BenchmarkMutexSlack-2                    1094.00       186.00  -83.00%
sync_test.BenchmarkMutexSlack-4                    3430.00       402.00  -88.28%
sync_test.BenchmarkMutexSlack-8                    5051.00      1066.00  -78.90%
sync_test.BenchmarkMutexSlack-16                   6806.00      1363.00  -79.97%

sync_test.BenchmarkMutexWork                        793.00       792.00   -0.13%
sync_test.BenchmarkMutexWork-2                      398.00       398.00   +0.00%
sync_test.BenchmarkMutexWork-4                     1441.00       308.00  -78.63%
sync_test.BenchmarkMutexWork-8                     8532.00       847.00  -90.07%
sync_test.BenchmarkMutexWork-16                    8225.00      2760.00  -66.44%

sync_test.BenchmarkMutexWorkSlack                   793.00       793.00   +0.00%
sync_test.BenchmarkMutexWorkSlack-2                 418.00       414.00   -0.96%
sync_test.BenchmarkMutexWorkSlack-4                4481.00       480.00  -89.29%
sync_test.BenchmarkMutexWorkSlack-8                6317.00      1598.00  -74.70%
sync_test.BenchmarkMutexWorkSlack-16               9111.00      3038.00  -66.66%

R=rsc
CC=golang-dev
https://golang.org/cl/4631059
2011-06-28 15:09:53 -04:00
Brad Fitzpatrick
39acba55ee fmt: rename errno and error to err for doc consistency
The public godoc looked confused. I imagine these were
written before current conventions were established.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4662060
2011-06-28 11:00:31 -07:00
Albert Strasheim
a026d0fc76 runtime/cgo: check for errors from pthread_create
R=rsc, iant, dvyukov
CC=golang-dev
https://golang.org/cl/4643057
2011-06-28 12:04:50 -04:00
Dmitriy Vyukov
660b22988b runtime: add Semacquire/Semrelease benchmarks
R=rsc
CC=golang-dev
https://golang.org/cl/4625065
2011-06-28 11:15:24 -04:00
Dmitriy Vyukov
93dde6b0e6 sync: add fast path to Once
The implementation does not grab the lock,
if Once is already initalized.
Benchmark results on HP Z600 (2 x Xeon E5620, 8 HT cores, 2.40GHz)
are as follows:
benchmark                                        old ns/op    new ns/op    delta
sync_test.BenchmarkOnce                             187.00        14.00  -92.51%
sync_test.BenchmarkOnce-2                           909.00        21.40  -97.65%
sync_test.BenchmarkOnce-4                          3684.00        20.90  -99.43%
sync_test.BenchmarkOnce-8                          5987.00        23.00  -99.62%
sync_test.BenchmarkOnce-16                         5051.00        21.60  -99.57%

R=bradfitz, rsc
CC=golang-dev
https://golang.org/cl/4641066
2011-06-28 09:43:01 -04:00
Rob Pike
81592c298b Add the beginnings of the template execution code. Lots still to do,
including evaluation up the data tree (in this code all fields must be
in dot itself), plus more control structure, but the basics are in place.

R=rsc, r
CC=golang-dev
https://golang.org/cl/4665041
2011-06-28 23:04:08 +10:00
Dmitriy Vyukov
5c15f8710c sync: replace Mutex benchmarks
For both contended and uncontended case:
 - support arbitrary number of cpus (not just 2)
 - dynamic load balancing (improves stability)
 - periodic execution of Gosched() to work around non-preemptiviness
For uncontended case eliminates possible false-sharing.
For contended case includes additional variation with some
amount of local work between mutex operations.

R=r, rsc
CC=golang-dev
https://golang.org/cl/4634093
2011-06-28 08:14:54 -04:00
Evan Shaw
cf3eeb2984 io.WriteString: if the object has a WriteString method, use it
This avoids allocation when writing to bytes.Buffers and bufio.Writers, for
example.

R=golang-dev, rsc, r, consalus, r
CC=golang-dev
https://golang.org/cl/4625068
2011-06-28 16:10:39 +10:00
Brad Fitzpatrick
6282292f8d mime/multipart: parse LF-delimited messages, not just CRLF
Against the spec, but appear in the wild.

Fixes #1966

R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/4662059
2011-06-27 21:59:51 -07:00
Russ Cox
52cd055f91 exp/regexp/syntax: case-folding in character classes
Also fix \x{123} parsing.

R=r
CC=golang-dev
https://golang.org/cl/4632052
2011-06-27 23:23:51 -04:00
Alex Brainman
6b648cafde runtime: another attempt to allow stdcall to be used from both 386 and amd64 arch
R=rsc
CC=golang-dev, vcc.163
https://golang.org/cl/4627071
2011-06-28 12:46:16 +10:00
Russ Cox
fe2ccb53c0 cc: add two new #pragma varargck
#pragma varargck countpos f 1
says that the first argument to f is
the count of variadic arguments that follow.

#pragma varargck type f t
says that t is one of the allowed types for
a variadic argument to f.
(can be repeated)

combined, these can be used to check the
runtime.stdcall functions in the windows port
or in any other port that needs a vararg list of
uintptrs even on a 64-bit platform (where it is
very easy to pass a less-than-uintptr in the ...).

demo:

typedef unsigned int uintptr;

#pragma varargck countpos f 1
#pragma varargck type f uintptr
#pragma varargck type f void*

int f(int count, ...);

void *v;
char *p;

void
main(void)
{
        f(1, v);  // ok
        f(1, main);  // ok
        f(1, p);  // ok
        f(2, v, v);  // ok

        f(2, v);  // found 1 argument after count 2
        f(1, 'a');  // invalid type INT in call to f
        f(1, 0);  // invalid type INT in call to f
}

R=ken, r, alex.brainman
CC=golang-dev
https://golang.org/cl/4634103
2011-06-27 22:42:34 -04:00
Rob Pike
f71153278a os: simplify WriteString
It was working too hard.

R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/4639081
2011-06-28 11:09:21 +10:00
Russ Cox
46e7466080 exp/regexp/syntax: compiled form
R=r, sam.thorogood, kevlar
CC=golang-dev, rsc
https://golang.org/cl/4636046
2011-06-27 19:52:59 -04:00
Rob Pike
ebb1566a46 strings.Split: make the default to split all.
Change the signature of Split to have no count,
assuming a full split, and rename the existing
Split with a count to SplitN.
Do the same to package bytes.
Add a gofix module.

R=adg, dsymonds, alex.brainman, rsc
CC=golang-dev
https://golang.org/cl/4661051
2011-06-28 09:43:14 +10:00
Ken Rockot
82a8afdf14 syscall: support for tty options in StartProcess
These are the relevant changes to exec_unix.go now that
mkerrors.sh outputs have been updated.

R=rsc
CC=golang-dev
https://golang.org/cl/4648064
2011-06-27 19:07:49 -04:00
Kyle Lemons
abd50de296 xml: add Marshal and MarshalIndent
I have written up a Marshal and MarshalIndent pair that should
closely reflect the way that Unmarshal works.  I would love feedback
on making this code more accessible and efficient... I haven't used
reflecton on this scale before, so there is probably a lot of work
that can be done on that.

Some potentially controversial things:
- All tag names are lower-cased by default.
- Zero-valued struct values are skipped.
- No namespace prefix (o:tag, etc) mechanism is supplied.
- You are allowed to marshal non-struct values (even though unmarshal
  cannot handle them).
- A tag for a non-XMLName struct field that isn't "attr", "chardata",
  or "innerxml" is used as the name of the tag.  This could wreak
  havoc if you try to marshal a protobuf struct.
- The "innerxml" and "chardata" are inserted verbatim.  If you try to
  marshal something straight from unmarshal, the results could be
  unexpected (remove "innerxml" support from Marshal would be one
  possible solution).

R=rsc
CC=golang-dev
https://golang.org/cl/4539082
2011-06-27 19:07:28 -04:00
Brad Fitzpatrick
ac213ab834 http: respect Handlers setting Connection: close in their response
Fixes #2011

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4667043
2011-06-27 15:53:48 -07:00
Russ Cox
8475832f0d testing: scale benchmark precision to 0.01ns if needed
R=dvyukov, r
CC=golang-dev
https://golang.org/cl/4657053
2011-06-27 18:50:27 -04:00
Russ Cox
6aaa86ff66 gc: avoid package name ambiguity in error messages
Fixes #2006.

R=ken2
CC=golang-dev
https://golang.org/cl/4643056
2011-06-27 18:44:30 -04:00
Brad Fitzpatrick
19f795042a http: add FileSystem interface, make FileServer use it
Permits serving from virtual filesystems, such as files linked
into a binary, or from a zip file.

Also adds a gofix for:

http.FileServer(root, prefix) -> http.StripPrefix(prefix, http.FileServer(http.Dir(root)))

R=r, rsc, gri, adg, dsymonds, r, gri
CC=golang-dev
https://golang.org/cl/4629047
2011-06-27 15:26:36 -07:00
Graham Miller
f795bdb979 bufio: do not cache Read errors
Reader previously had cached an error from the underlying reader
and would return it on every subsequent call to Read.  The Reader
will now return the error only once, and subsequent calls will result
in a new Read call to the underlying Reader.

Fixes #1934.

R=bradfitz, rogpeppe, rsc
CC=golang-dev
https://golang.org/cl/4528133
2011-06-27 16:12:04 -04:00
Dmitriy Vyukov
3a4a581c49 sync: add benchmark for Once.
R=r, rsc
CC=golang-dev
https://golang.org/cl/4650054
2011-06-27 16:02:13 -04:00
Lucio De Re
6bcfb95168 8a: fixes for Plan 9 build
8a/a.h:
. Removed <u.h> and <libc.h> includes as they work better in "a.y".
. Made definition of EOF conditional as it's defined in the Plan 9
  header files, but not elsewhere.

8a/a.y:
. Added <u.h> and <libc.h> because <stdio.h> in Plan 9 needs them.
  Sequence <u.h>, <stdio.h>, <libc.h> recommended by RSC.

8a/lex.c:
. Added <u.h> and <libc.h> as now needed by "a.h".
. Dropped <ctype.h>.

cc/lexbody:
. exit() -> exits().
. Dropped unwanted incrementation.

cc/macbody:
. Adjusted a few format specifications.

R=rsc
CC=golang-dev
https://golang.org/cl/4644047
2011-06-27 14:42:18 -04:00
Anthony Martin
10d0dffd76 ld: elide the Go symbol table when using -s
R=rsc, n13m3y3r, gustavo
CC=golang-dev
https://golang.org/cl/4661050
2011-06-27 14:39:38 -04:00
Russ Cox
5f84559e3a build: use correct list of required programs
R=golang-dev, bradfitz, go.peter.90
CC=golang-dev
https://golang.org/cl/4627068
2011-06-27 14:30:02 -04:00
Brad Fitzpatrick
6c6c232072 http: add StripPrefix handler wrapper
R=rsc
CC=golang-dev
https://golang.org/cl/4626067
2011-06-27 11:03:43 -07:00
Brad Fitzpatrick
7e29f1add8 http: do TLS handshake explicitly before copying TLS state
Previously we were snapshotting the TLS state into *Request
before we did the HTTP ReadRequest, the first Read of which
triggered the TLS handshake implicitly.

Fixes #1956

R=golang-dev, rsc
CC=agl, golang-dev
https://golang.org/cl/4630072
2011-06-27 10:37:33 -07:00
Dmitriy Vyukov
9843ca5e2b gotest: add -test.benchtime and -test.cpu flags.
-test.benchtime allows to specify benchmark execution time.
-test.cpu allows to execute tests/benchmarks for several
values of GOMAXPROCS.

R=r, r, rsc
CC=golang-dev
https://golang.org/cl/4662046
2011-06-27 13:31:40 -04:00
Russ Cox
9dd354c63f 5l, 6l, 8l: drop use of ed during build
build runs with chmod 0 /bin/ed now

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/4635071
2011-06-27 12:03:19 -04:00
Russ Cox
dfacfd6431 syscall: regenerate zerrors for darwin/linux/freebsd
did darwin on mac with older, not broken xcode.
did linux arm by copying diffs from linux 386.
did freebsd amd64 by copying diffs from freebsd 386.

R=golang-dev, r, mikioh.mikioh
CC=golang-dev
https://golang.org/cl/4629067
2011-06-27 11:02:32 -04:00
Dmitry Chestnykh
d1dbfe5827 crypto: replace "crypto/block" with "crypto/cipher" in comments
Documentation mentioned the obsolete package "crypto/block",
which has been replaced with "crypto/cipher".

R=golang-dev, agl
CC=golang-dev
https://golang.org/cl/4654064
2011-06-27 09:16:42 -04:00
Robert Hencke
da19831c17 gofix: fixes for path/filepath changes
Fixes #1970.

R=rsc, r
CC=golang-dev
https://golang.org/cl/4650050
2011-06-26 11:24:28 +10:00
Robert Hencke
69905c6213 gofix: fixes for sort changes
Fixes #1969.

R=gri, rsc, r
CC=golang-dev
https://golang.org/cl/4634076
2011-06-26 08:48:53 +10:00
Robert Griesemer
f70e8ed0f3 ebnflint: better handling of stdin
- don't rely on /dev/stdin as the name for standard input
- employ EBNF extraction if the source contains tags

"cat source.html | ebnflint" works now

R=r
CC=golang-dev
https://golang.org/cl/4641075
2011-06-24 17:29:19 -07:00
Michael T. Jones
d94e350f48 fmt: Added SkipSpace() function to fmt's ScanState interface.
Users of the Scan() infrastructure that employ ReadRune() rather than
Token() need a way to skip leading spaces and newlines as set by the
the parent, Fscan(), Fscanln, or Fscanf(). As the internal methods and
boolean flags are not exported, this new function was added here and
in the Int and Nat Scan() functions of the big package. (fmt.Rat did
not need change since it uses Token()) Also added Printf style format
code support to int types and tests for same to int_test.go

R=r, r, gri, mtj
CC=golang-dev
https://golang.org/cl/4634074
2011-06-24 17:26:45 -07:00
Brad Fitzpatrick
5d4eea6a2f http: better handling of 0-length Request.Body
As rsc suggested after change 58a6bdac3d12 was committed, we
now read the first byte of Request.Body when the
Request.ContentLength is 0 to disambiguate between a truly
zero-length body and a body of unknown length where the user
didn't set the ContentLength field.

This was also causing the reverse proxy problem where incoming
requests (which always have a body, of private type http.body,
even for 0-lengthed requests) were being relayed to the http
Transport for fetching, which was serializing the request as a
chunked request (since ContentLength was 0 and Body was
non-nil)

Fixes #1999

R=golang-dev, kevlar
CC=golang-dev
https://golang.org/cl/4628063
2011-06-24 16:46:14 -07:00
Brad Fitzpatrick
e16b74075f http: assume ContentLength 0 on GET requests
Incremental step in fix for issue 1999

R=golang-dev, kevlar
CC=golang-dev
https://golang.org/cl/4667041
2011-06-24 13:48:12 -07:00
Pascal S. de Kloe
e0e28d2b93 mime: lower-case media type parameters
RFC 1521 section 4 states "The type, subtype, and parameter names are not case sensitive.".

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/4648047
2011-06-24 11:32:06 -07:00
Robert Hencke
7a471eadcc os: remove duplicate package description
file.go contains a more complete package description.

R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/4645058
2011-06-24 11:23:49 -07:00
Alex Brainman
a39ead7ed2 path/filepath: enable TestWalk to run on windows
R=golang-dev
CC=golang-dev
https://golang.org/cl/4630066
2011-06-24 19:18:59 +10:00
Yasuhiro Matsumoto
8ab2c98972 os: fixed PathListSeparator to ';' for windows.
Fixed issue 1992

R=golang-dev, alex.brainman
CC=golang-dev
https://golang.org/cl/4661047
2011-06-24 15:00:59 +10:00
Brad Fitzpatrick
89873e60e2 http: buffer Request.Write
Fixes #1996

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4639068
2011-06-23 21:10:51 -07:00
Gustavo Niemeyer
65b036c381 runtime: don't use twice the memory with grsec-like kernels
grsec needs the FIXED flag to be provided to mmap, which
works now.  That said, when the allocation fails to be made
in the specific address, we're still given back a writable
page.  This change will unmap that page to avoid using
twice the amount of memory needed.

It'd also be pretty easy to avoid the extra system calls
once we detected that the flag is needed, but I'm not sure
if that edge case is worth the effort.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4634086
2011-06-24 00:29:59 -03:00
Andrew Gerrand
b4bab6f8b3 goinstall: build with make by default, add -make flag
This is a temporary measure until go/build can build cgo packages.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4627056
2011-06-24 13:01:17 +10:00
Yasuhiro Matsumoto
73d741fd5b mime/multipart: remove newline at top of the multipart.
R=golang-dev, bradfitz, arctanofyourface
CC=golang-dev
https://golang.org/cl/4635063
2011-06-23 10:11:33 -07:00
Anthony Martin
d847467041 libmach: fix disassembly of FCMOVcc and FCOMI
The optable for 0xDB is handled specially.

This was the cause of a really weird bug
when using cov (386!) on the math package.

A real head-scratcher.

R=rsc
CC=golang-dev
https://golang.org/cl/4639066
2011-06-23 09:32:29 -04:00
Anthony Martin
8f72a87b4c libmach: fix tracing on linux (for cov)
R=rsc, dave
CC=golang-dev
https://golang.org/cl/4629064
2011-06-22 23:24:14 -04:00
Russ Cox
c475c3071a 5c: do not use R9 and R10
This program used to use R9 and R10.
Now it fails to compile (out of registers).
I used to know a simpler test but can't remember it.

Learned something new: Rietveld refuses change
list descriptions bigger than 10 kB.

int sum(int x, int y, int z, int w) {
        return
        (((((((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w)))|
        (((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))))/
        ((((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w)))|
        (((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w)))))%
        (((((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w)))|
        (((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))))/
        ((((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w)))|
        (((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))))))*
        ((((((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w)))|
        (((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))))/
        ((((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w)))|
        (((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w)))))%
        (((((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w)))|
        (((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))))/
        ((((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w)))|
        (((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w)))))))*
        (((((((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w)))|
        (((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))))/
        ((((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w)))|
        (((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w)))))%
        (((((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w)))|
        (((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))))/
        ((((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w)))|
        (((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))))))*
        ((((((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w)))|
        (((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))))/
        ((((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w)))|
        (((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w)))))%
        (((((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w)))|
        (((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))))/
        ((((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w)))|
        (((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w)))))))
        ;
}

R=ken2
CC=golang-dev
https://golang.org/cl/4650053
2011-06-22 23:22:36 -04:00
Alex Brainman
5d53aab4a2 exec: LookPath should not search %PATH% for files like c:cmd.exe
R=golang-dev
CC=golang-dev
https://golang.org/cl/4632055
2011-06-23 10:56:53 +10:00