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Author SHA1 Message Date
Hector Chu
47e6042f73 runtime: fix select pass 3 
Fixes #2075

R=rsc, ken, r
CC=golang-dev
https://golang.org/cl/4748045
 2011-07-18 16:15:01 -04:00
Russ Cox
bd77619142 runtime: track running goroutine count 
Used to use mcpu+msyscall but that's
problematic for packing into a single
atomic word.  The running goroutine count
(where running == Go code or syscall)
can be maintained separately, always
manipulated under lock.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/4767041
 2011-07-18 15:50:55 -04:00
Dmitriy Vyukov
27753ff108 runtime: add per-M caches for MemStats 
Avoid touching centralized state during
memory manager operations.

R=mirtchovski
CC=golang-dev, rsc
https://golang.org/cl/4766042
 2011-07-18 14:56:22 -04:00
Dmitriy Vyukov
66d5c9b1e9 runtime: add per-M caches for MemStats 
Avoid touching centralized state during
memory manager opreations.

R=rsc
CC=golang-dev
https://golang.org/cl/4766042
 2011-07-18 14:52:57 -04:00
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
Andrew Gerrand
ab55133ca9 doc: fix padding on h1 tags 
See /doc/codewalk/sharemem/ for an example of how it's broken.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4742044
 2011-07-18 17:30:00 +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
38a53c7ecb go spec: (up-)date 
R=rsc, bradfitz, r
CC=golang-dev
https://golang.org/cl/4738042
 2011-07-14 15:58:37 -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