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Commit Graph

16631 Commits

Author SHA1 Message Date
Dmitriy Vyukov
b000f2286c net: more refactoring in preparation for runtime integrated pollster
Move pollServer from fd_unix.go to fd_poll_unix.go.
Add pollServerInit(*NetFD) to allow custom initialization.
Add pollServer.Close(*NetFD) to allow custom finalization.
Move setDeadline() to fd_poll_unix.go to allow custom handling of deadlines.
Move newPollServer() to fd_poll_unix.go to allow custom initialization.
No logical code changes.
The next step will be to turn off fd_poll_unix.go for some platform
(I have changes for darwin/linux) and redirect it into runtime. See:
https://golang.org/cl/7569043/diff/2001/src/pkg/net/fd_poll_runtime.go

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/7513045
2013-03-07 21:44:24 +04:00
Dmitriy Vyukov
cb945ba6ba runtime: fix deadlock
The deadlock episodically occurs on misc/cgo/test/TestCthread.
The problem is that starttheworld() leaves some P's with local work
without M's. Then all active M's enter into syscalls, but reject to
wake another M's due to the following check (both in entersyscallblock() and in retake()):
if(p->runqhead == p->runqtail &&
        runtime·atomicload(&runtime·sched.nmspinning) +
        runtime·atomicload(&runtime·sched.npidle) > 0)
        continue;

R=rsc
CC=golang-dev
https://golang.org/cl/7424054
2013-03-07 21:39:59 +04:00
Russ Cox
60f783d92b cmd/ld: host linking support for linux/amd64
Still to do: non-linux and non-amd64.
It may work on other ELF-based amd64 systems too, but untested.

"go test -ldflags -hostobj $GOROOT/misc/cgo/test" passes.

Much may yet change, but this seems a reasonable checkpoint.

R=iant
CC=golang-dev
https://golang.org/cl/7369057
2013-03-07 09:19:02 -05:00
Russ Cox
8aafb44b0b runtime: fix cgo callbacks on windows
Fixes #4955.

R=golang-dev, alex.brainman
CC=golang-dev
https://golang.org/cl/7563043
2013-03-07 09:18:48 -05:00
Dmitriy Vyukov
0f136f2c05 net: fix accept/connect deadline handling
Ensure that accept/connect respect deadline,
even if the operation can be executed w/o blocking.
Note this changes external behavior, but it makes
it consistent with read/write.
Factor out deadline check into pollServer.PrepareRead/Write,
in preparation for edge triggered pollServer.
Ensure that pollServer.WaitRead/Write are not called concurrently
by adding rio/wio locks around connect/accept.

R=golang-dev, mikioh.mikioh, bradfitz, iant
CC=golang-dev
https://golang.org/cl/7436048
2013-03-07 17:03:40 +04:00
Mikio Hara
48fa4a10fb net: fix typo in skip message
R=golang-dev, akumar
CC=golang-dev
https://golang.org/cl/7523044
2013-03-07 19:17:18 +09:00
Mikio Hara
3fc244f370 net: fix plan9 build
R=golang-dev, akumar
CC=golang-dev
https://golang.org/cl/7564043
2013-03-07 19:15:00 +09:00
Tyler Bunnell
ae7aa345db cmd/fix: remove redundant 0 port
Fixes #4505.

R=golang-dev, mikioh.mikioh
CC=golang-dev
https://golang.org/cl/7468043
2013-03-07 19:06:19 +09:00
Rob Pike
bcb1da7065 all: delete a couple of mentions of the exp and old trees
R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/7551043
2013-03-06 16:52:03 -08:00
Robert Griesemer
0b2caf2717 go/types: implement constant string(x) conversions
Fixes #4982.

R=adonovan, r
CC=golang-dev
https://golang.org/cl/7537043
2013-03-06 16:15:04 -08:00
Robert Griesemer
b8db56ad2e go/types: cleanup of assignment checks
Also:
- cleaner handling of constants w/ unknown value
- removed several TODOs

R=adonovan
CC=golang-dev
https://golang.org/cl/7473043
2013-03-06 16:14:07 -08:00
Albert Strasheim
0a71a5b029 all: Skip AllocsPerRun tests if GOMAXPROCS>1.
Fixes #4974.

R=rsc, bradfitz, r
CC=golang-dev
https://golang.org/cl/7545043
2013-03-06 15:52:32 -08:00
Rob Pike
45a3b3714f doc/effective_go.html: unify and expand the discussion of Sprintf and String
It's a common mistake to build a recursive String method; explain it well and
show how to avoid it.

R=golang-dev, bradfitz, adg
CC=golang-dev
https://golang.org/cl/7486049
2013-03-06 15:47:49 -08:00
Rob Pike
d07978a0f7 exp/norm: delete, part of moving to go.text
See also https://golang.org/cl/7520044

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/7533044
2013-03-06 14:34:03 -08:00
Brad Fitzpatrick
a30bede5ef net/http: remove allocations in HeaderWriteSubset
Before:
BenchmarkHeaderWriteSubset  500000  2354 ns/op  197 B/op  2 allocs/op
After:
BenchmarkHeaderWriteSubset 1000000  2085 ns/op    0 B/op  0 allocs/op

Fixes #3761

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/7508043
2013-03-06 14:10:47 -08:00
Russ Cox
fb59aed60b cmd/cgo: split cgo_export into cgo_export_static and cgo_export_dynamic
Also emit cgo_ldflag pragmas.

R=golang-dev, remyoudompheng, iant
CC=golang-dev
https://golang.org/cl/7530043
2013-03-06 16:57:14 -05:00
Russ Cox
56d1faa8b6 net/http/httputil: fix build
TBR=bradfitz
CC=golang-dev
https://golang.org/cl/7540043
2013-03-06 16:56:53 -05:00
Russ Cox
efd3d1ffe9 runtime: fix netbsd, windows build
TBR=golang-dev
CC=golang-dev
https://golang.org/cl/7539043
2013-03-06 16:55:08 -05:00
Russ Cox
48c1db4003 net/http: change user agent string
Some IDS somewhere thinks "Go http package" is a virus.
Make it something else for Go 1.1. Dumb but easy.

R=golang-dev, bradfitz, minux.ma
CC=golang-dev
https://golang.org/cl/7532043
2013-03-06 16:48:20 -05:00
Rob Pike
a25486e4b1 make.bash,bat: add -tags gotypes to the build
This installs type checking into go vet.
(To be removed before releasing Go 1.1)

R=golang-dev, minux.ma
CC=golang-dev
https://golang.org/cl/7528044
2013-03-06 13:16:43 -08:00
Rob Pike
0ed517e5e6 cmd/vet: isolate the type checking code into a separate file
We can enable/disable type checking with a build tag.
Should simplify cutting the go1.1 distribution free of go/types.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/7482045
2013-03-06 12:49:56 -08:00
Russ Cox
7610a0552f lib9: add mktempdir, removeall, runprog
R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/7523043
2013-03-06 15:48:28 -05:00
Rob Pike
c76379954f text/template: improve error reporting for executing an empty template
Fixes #4522.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/7502044
2013-03-06 12:34:19 -08:00
Ewan Chou
4f43201e51 strings: remove allocations in Split(s, "")
BenchmarkSplit1     77984460     24131380  -69.06%

R=golang-dev, rsc, minux.ma, dave, extemporalgenome
CC=golang-dev
https://golang.org/cl/7458043
2013-03-06 15:21:19 -05:00
Russ Cox
64eec93225 A+C: Ewan Chou (individual CLA)
Generated by addca.

R=gobot
CC=golang-dev
https://golang.org/cl/7473047
2013-03-06 15:20:24 -05:00
Alex Brainman
2f23f90dab runtime,misc/cgo/test: disable broken tests so we can test the rest
R=golang-dev, minux.ma
CC=golang-dev
https://golang.org/cl/7486048
2013-03-06 15:19:01 -05:00
Alex Brainman
e44f42e056 libmach: fix amd64 pe handling
Fixes #4841.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/7475046
2013-03-06 15:14:07 -05:00
Russ Cox
77deeda717 misc/cgo/test: do not stop on first error
R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/7529043
2013-03-06 15:03:28 -05:00
Russ Cox
36b414f639 runtime: change amd64 startup convention
Now the default startup is that the program begins at _rt0_amd64_$GOOS,
which sets DI = argc, SI = argv and jumps to _rt0_amd64.

This makes the _rt0_amd64 entry match the expected semantics for
the standard C "main" function, which we can now provide for use when
linking against a standard C library.

R=golang-dev, devon.odell, minux.ma
CC=golang-dev
https://golang.org/cl/7525043
2013-03-06 15:03:04 -05:00
Dominik Honnef
cf8434fa31 misc/emacs: Add compatibility for GNU Emacs 23 and XEmacs >=21.5.32
This CL adds compatibility for GNU Emacs 23 (fixing fontification
issues) and XEmacs >=21.5.32 (fixing a lot of issues). Earlier
versions of XEmacs will not be supported because they do not
support POSIX character classes. Because of that, we also make use
of a lot of functions that were added in 21.5.32.

A known and currently unfixable issue with XEmacs is that go-mode
will not always fontify identifiers that use unicode correctly.

All changes for XEmacs are annotated in the diff.

Note: go--position-bytes is not currently used anywhere, but will
be in a future CL.

Fixes #4927.

R=golang-dev, adonovan, cw, patrick.allen.higgins, sameer
CC=golang-dev
https://golang.org/cl/7456051
2013-03-06 14:35:29 -05:00
Brad Fitzpatrick
1ca529c62c api: update next.txt
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/7518044
2013-03-06 11:16:58 -08:00
Rob Pike
5f07125cb9 effective_go.html: round 3 of minor edits.
R=golang-dev, iant
CC=golang-dev
https://golang.org/cl/7489044
2013-03-06 10:08:48 -08:00
Brad Fitzpatrick
ce8341554c net/http: close TCP connection on Response.Body.Close
Previously the HTTP client's (*Response).Body.Close would try
to keep reading until EOF, hoping to reuse the keep-alive HTTP
connection, but the EOF might never come, or it might take a
long time. Now we immediately close the TCP connection if we
haven't seen EOF.

This shifts the burden onto clients to read their whole response
bodies if they want the advantage of reusing TCP connections.

In the future maybe we could decide on heuristics to read some
number of bytes for some max amount of time before forcefully
closing, but I'd rather not for now.

Statistically, touching this code makes things regress, so I
wouldn't be surprised if this introduces new bugs, but all the
tests pass, and I think the code is simpler now too. Maybe.

Please test your HTTP client code before Go 1.1.

Fixes #3672

R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/7419050
2013-03-05 18:47:27 -08:00
Nigel Tao
0d9bf2757e image/jpeg: for progressive JPEGs, the first SOS segment doesn't
necessarily contain all components.

Fixes #4975.

R=r, minux.ma, bradfitz
CC=golang-dev
https://golang.org/cl/7469043
2013-03-06 10:08:46 +11:00
David Symonds
a22361d68d vet: check for useless assignments.
The only check so far is for self-assignments of the form "expr = expr",
but even that found one instance in the standard library.

R=r, adg, mtj, rsc
CC=golang-dev
https://golang.org/cl/7455048
2013-03-06 09:55:04 +11:00
Rob Pike
8cf6e75e2a cmd/vet: change some warnings to errors for consistency.
Fixes #4980.

R=golang-dev, rsc, dsymonds
CC=golang-dev
https://golang.org/cl/7479044
2013-03-05 14:31:17 -08:00
Rob Pike
b3915112b9 doc/effective_go.html: update slices and maps.
Drop the phrase "reference types", which has caused confusion.
Add a section about 2D arrays, a common newbie question.

R=golang-dev, cespare, adg, rsc
CC=golang-dev
https://golang.org/cl/7423051
2013-03-05 14:13:53 -08:00
Russ Cox
e0deb2ef7f undo CL 7301062 / 9742f722b558
broke arm garbage collector

traceback_arm fails with a missing pc. It needs CL 7494043.
But that only makes the build break later, this time with
"invalid freelist". Roll back until it can be fixed correctly.

««« original CL description
runtime: restrict stack root scan to locals and arguments

R=rsc
CC=golang-dev
https://golang.org/cl/7301062
»»»

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/7493044
2013-03-05 15:36:40 -05:00
Robert Griesemer
d01516796c go/types: add test typechecking std lib
- run time is limited if -short is set
- also added missing TODO to unrelated file return.go

R=r
CC=golang-dev
https://golang.org/cl/7448052
2013-03-05 11:42:43 -08:00
Joel Sing
1b36bcc3b5 syscall: handle getsockname for unix sockets on openbsd 5.2
On OpenBSD 5.2, calling getsockname on an unbound Unix domain socket
results in a successful syscall, however the AF is unset and the length
is returned as zero. This has been changed to more portable behaviour,
which will be included in the OpenBSD 5.3 release.

For now, work around this by treating a successful getsockname() call
that returns a family of AF_UNSPEC and length of zero as a AF_UNIX
socket.

Makes TestPassFD work on OpenBSD 5.2.

Fixes #4956.

R=golang-dev, minux.ma, rsc, mikioh.mikioh
CC=golang-dev
https://golang.org/cl/7449046
2013-03-05 21:40:37 +11:00
Dmitriy Vyukov
add3349867 runtime: add atomic xchg64
It will be handy for network poller.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/7429048
2013-03-05 09:46:52 +02:00
Dmitriy Vyukov
2fe840f4f6 runtime: fix false positive deadlock when using runtime.Goexit
Fixes #4893.
Actually it's fixed by cl/7314062 (improved scheduler),
just submitting the test.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/7422054
2013-03-05 09:40:17 +02:00
Dmitriy Vyukov
d0c11d20b8 runtime: declare addtimer/deltimer in runtime.h
In preparation for integrated network poller
(https://golang.org/cl/7326051),
this is required to handle deadlines.

R=golang-dev, remyoudompheng, rsc
CC=golang-dev
https://golang.org/cl/7446047
2013-03-05 09:38:15 +02:00
Carl Shapiro
db018bf77c runtime: restrict stack root scan to locals and arguments
R=rsc
CC=golang-dev
https://golang.org/cl/7301062
2013-03-04 19:48:50 -08:00
David Symonds
6a75252088 text/template/parse: remove self-assignment.
R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/7431054
2013-03-05 11:16:58 +11:00
David Symonds
eeade74529 vet: clean up taglit error print when typechecking fails.
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/7416050
2013-03-05 09:56:46 +11:00
Robert Griesemer
6b34eba007 go/types: "missing return" check
Implementation closely based on Russ' CL 7440047.

Future work: The error messages could be better
(e.g., instead of "missing return" it might say
"missing return (no default in switch)", etc.).

R=adonovan, rsc
CC=golang-dev
https://golang.org/cl/7437049
2013-03-04 14:40:12 -08:00
Russ Cox
ecab408c42 cmd/gc: implement new return requirements
Fixes #65.

R=ken2
CC=golang-dev
https://golang.org/cl/7441049
2013-03-04 17:02:04 -05:00
Robert Griesemer
9905cec0dc spec: terminating statements for functions
The only functional change is the new section
on terminating statements.

There is a minor syntax rewrite (not change)
of function declarations to make it easier to
refer to the notion of a function from all places
where it is used (function decls, method decls,
and function literals).

Includes some minor fixes/additions of missing links.

Based closely on Russ' proposal.

Fixes #65.

R=rsc, r, iant, ken, bradfitz
CC=golang-dev
https://golang.org/cl/7415050
2013-03-04 13:55:35 -08:00
Robert Griesemer
4be38dde84 spec: cyclic imports are illegal
Fixes #4976.

R=r
CC=golang-dev
https://golang.org/cl/7421050
2013-03-04 12:59:40 -08:00