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Author SHA1 Message Date
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
21752bc130 CONTRIBUTORS: add Paul Borman (Google CLA) 
R=borman, bradfitz
CC=golang-dev
https://golang.org/cl/4654079
 2011-07-01 12:09:53 -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
Yasuhiro Matsumoto
369418d29c misc/vim: allow only utf-8 for fileencoding (fix CL4625078). 
R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/4650062
 2011-06-30 17:07:44 +10:00
Yasuhiro Matsumoto
51a79d0306 misc/vim: allow only utf-8 for fileencoding. 
R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/4625078
 2011-06-30 16:19:53 +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
Andrew Gerrand
121775f2c8 tag release.r58 
R=rsc
CC=golang-dev
https://golang.org/cl/4634113
 2011-06-30 09:59:44 +10:00
Andrew Gerrand
f81d81ca3f document release.r58 
R=rsc, r, bsiegert
CC=golang-dev
https://golang.org/cl/4643058
 2011-06-30 09:45:10 +10:00
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
Brad Fitzpatrick
45f956ab82 C+A: add Andy Balholm 
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4630080
 2011-06-29 11:46:06 -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
3379414b21 codereview: restrict sync to default branch 
'default' is the name of the main branch,
the one that isn't a release branch.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4636072
 2011-06-29 00:45:29 -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