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Commit Graph

334 Commits

Author SHA1 Message Date
Akhil Indurti
d57ebde91f math: add Compare and Compare32
This change introduces the Compare and Compare32 functions
based on the total-ordering predicate in IEEE-754, section 5.10.

In particular,
* -NaN is ordered before any other value
* +NaN is ordered after any other value
* -0 is ordered before +0
* All other values are ordered the usual way

name         time/op
Compare-8    0.24ns ± 1%
Compare32-8  0.24ns ± 0%

Fixes #56491.

Change-Id: I9444fbfefe26741794c4436a26d403b8da97bdaf
Reviewed-on: https://go-review.googlesource.com/c/go/+/459435
Run-TryBot: Ian Lance Taylor <iant@google.com>
Reviewed-by: David Chase <drchase@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
2023-02-09 20:47:48 +00:00
weebney
def0be5e34 all: upgrade Unicode from 13.0.0 to 15.0.0
Update unicode/tables.go to reflect changes in the Unicode Standard up to
Unicode 15.0.0, released 13 Sept 2022.

In order to accommodate this update, strconv/isPrint has been updated to
reflect changes in printable characters.

Also changed is template/exec_test.go for both text and html packages- in
the test "TestJSEscaping", rune U+FDFF was used as a placeholder for an
unprintable character. This codepoint was assigned and made printable in
Unicode 14.0.0, breaking this test. It has been replaced with the assigned
and never-printable U+FFFE to fix the test and provide resiliency in the
future.

This upgrade bypasses Unicode 14.0.0, but is compatible.

Updates https://github.com/golang/go/issues/48621
Fixes https://github.com/golang/go/issues/55079

Change-Id: I40efd097eb746db0727ebf7437280916d1242e47
GitHub-Last-Rev: c8885cab7a
GitHub-Pull-Request: golang/go#57265
Reviewed-on: https://go-review.googlesource.com/c/go/+/456837
Reviewed-by: Robert Griesemer <gri@google.com>
Run-TryBot: Rob Pike <r@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Robert Griesemer <gri@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Rob Pike <r@golang.org>
2023-02-06 04:29:53 +00:00
Ian Lance Taylor
a96487613e maps: new package
This copies x/exp/maps into the standard library (except for the Clear
function which is now available as the clear builtin.)

Fixes #57436

Change-Id: I30dd470c2f7ae34c7c82b4c1025a7582d61fabaa
Reviewed-on: https://go-review.googlesource.com/c/go/+/464343
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Eli Bendersky <eliben@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
2023-02-03 18:22:53 +00:00
Florin Papa
9222a01e65 debug/elf: add DT_FLAGS_1 constants
Add constants for all ELF dynamic flags (pertaining to DT_FLAGS_1). This will help, for example, determining whether an object is a position-independent executable (PIE). The constants are defined according to Table 15-10 in https://docs.oracle.com/en/operating-systems/solaris/oracle-solaris/11.4/linkers-libraries/dynamic-section.html.

Fixes #56887

Change-Id: I6cd501af50d9dbcc2aa8a9a002e12c6fb6726761
Reviewed-on: https://go-review.googlesource.com/c/go/+/452496
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
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2023-02-03 04:37:17 +00:00
Alan Donovan
fcd0e0963f math/big: add Int.Float64 conversion
This operation converts a big.Int to float64,
reporting the accuracy of the result, with
a fast path in hardware.

Fixes #56984

Change-Id: I86d0fb0e105a06a4009986f2f5fd87a4d446f6f9
Reviewed-on: https://go-review.googlesource.com/c/go/+/453115
Reviewed-by: Robert Griesemer <gri@google.com>
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2023-02-02 19:39:34 +00:00
Alan Donovan
18772915a1 go/token: add (*File).Lines method
This method returns the array updated by SetLines, for
use in exporter packages.

Fixes #57708

Change-Id: I12ed5e7e1bae7517f40cb25e76e51997c25d84f4
Reviewed-on: https://go-review.googlesource.com/c/go/+/464515
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
Run-TryBot: Alan Donovan <adonovan@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Alan Donovan <adonovan@google.com>
2023-02-02 16:40:29 +00:00
Cuong Manh Le
d42c08a2be reflect,runtime: add Value.Clear
Fixes #55002

Change-Id: I7d0f14cc54f67f2769b51d2efafc4ae3714f0e3d
Reviewed-on: https://go-review.googlesource.com/c/go/+/457895
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Keith Randall <khr@google.com>
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
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2023-01-30 16:00:58 +00:00
cuiweixie
4b3726e99b encoding/binary: add var NativeEndian
Updates #57237

Change-Id: I149c8b7eeac91b87b5810250f96d48ca87135807
Reviewed-on: https://go-review.googlesource.com/c/go/+/463218
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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Run-TryBot: xie cui <523516579@qq.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
2023-01-27 18:17:20 +00:00
hopehook
0b3f58c48e bytes, strings: add ContainsFunc
Fixes #54386.

Change-Id: I78747da337ed6129e4f7426dd0483a644bed82e3
Reviewed-on: https://go-review.googlesource.com/c/go/+/460216
TryBot-Result: Gopher Robot <gobot@golang.org>
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2023-01-24 22:06:45 +00:00
Sameer Ajmani
8bec956360 context: add APIs for setting a cancelation cause when deadline or timer expires
Fixes #56661

Change-Id: I1c23ebc52e6b7ae6ee956614e1a0a45d6ecbd5b4
Reviewed-on: https://go-review.googlesource.com/c/go/+/449318
Run-TryBot: Sameer Ajmani <sameer@golang.org>
Reviewed-by: Damien Neil <dneil@google.com>
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2023-01-20 21:41:01 +00:00
Russ Cox
aa51c40b1c runtime: replace panic(nil) with panic(new(runtime.PanicNilError))
Long ago we decided that panic(nil) was too unlikely to bother
making a special case for purposes of recover. Unfortunately,
it has turned out not to be a special case. There are many examples
of code in the Go ecosystem where an author has written panic(nil)
because they want to panic and don't care about the panic value.

Using panic(nil) in this case has the unfortunate behavior of
making recover behave as though the goroutine isn't panicking.
As a result, code like:

	func f() {
		defer func() {
			if err := recover(); err != nil {
				log.Fatalf("panicked! %v", err)
			}
		}()
		call1()
		call2()
	}

looks like it guarantees that call2 has been run any time f returns,
but that turns out not to be strictly true. If call1 does panic(nil),
then f returns "successfully", having recovered the panic, but
without calling call2.

Instead you have to write something like:

	func f() {
		done := false
		defer func() {
			if err := recover(); !done {
				log.Fatalf("panicked! %v", err)
			}
		}()
		call1()
		call2()
		done = true
	}

which defeats nearly the whole point of recover. No one does this,
with the result that almost all uses of recover are subtly broken.

One specific broken use along these lines is in net/http, which
recovers from panics in handlers and sends back an HTTP error.
Users discovered in the early days of Go that panic(nil) was a
convenient way to jump out of a handler up to the serving loop
without sending back an HTTP error. This was a bug, not a feature.
Go 1.8 added panic(http.ErrAbortHandler) as a better way to access the feature.
Any lingering code that uses panic(nil) to abort an HTTP handler
without a failure message should be changed to use http.ErrAbortHandler.

Programs that need the old, unintended behavior from net/http
or other packages can set GODEBUG=panicnil=1 to stop the run-time error.

Uses of recover that want to detect panic(nil) in new programs
can check for recover returning a value of type *runtime.PanicNilError.

Because the new GODEBUG is used inside the runtime, we can't
import internal/godebug, so there is some new machinery to
cross-connect those in this CL, to allow a mutable GODEBUG setting.
That won't be necessary if we add any other mutable GODEBUG settings
in the future. The CL also corrects the handling of defaulted GODEBUG
values in the runtime, for #56986.

Fixes #25448.

Change-Id: I2b39c7e83e4f7aa308777dabf2edae54773e03f5
Reviewed-on: https://go-review.googlesource.com/c/go/+/461956
Reviewed-by: Robert Griesemer <gri@google.com>
Run-TryBot: Russ Cox <rsc@golang.org>
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Auto-Submit: Russ Cox <rsc@golang.org>
2023-01-19 22:21:50 +00:00
Michael Pratt
e57e673e7f api: promote next to go1.20
Change-Id: I180f262837b164095f9ac9459d900ec1ac0585a3
Reviewed-on: https://go-review.googlesource.com/c/go/+/455697
Reviewed-by: Jenny Rakoczy <jenny@golang.org>
Run-TryBot: Michael Pratt <mpratt@google.com>
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2022-12-07 16:56:12 +00:00
Russ Cox
6ec6492f55 cmd/api: track darwin arm64 port
The darwin arm64 port was added in Go 1.16 and is a first-class port,
so it should be tracked by cmd/api. This CL does that, backfilling
API files as needed.

It also removes a spurious cgo.Incomplete API feature.

Change-Id: Idd995677915e81bf1c2e09be65b31e084b75f668
Reviewed-on: https://go-review.googlesource.com/c/go/+/453260
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Auto-Submit: Russ Cox <rsc@golang.org>
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2022-12-02 16:30:41 +00:00
Russ Cox
db4be8f510 encoding/csv: use proper doc comment for Deprecated notes
End-of-line comments are not doc comments,
so Deprecated notes in them are not recognized
as deprecation notices. Rewrite the comments.

Change-Id: I275fa9aec403132fda45853e52daa22bc06fcd36
Reviewed-on: https://go-review.googlesource.com/c/go/+/453617
Reviewed-by: Bryan Mills <bcmills@google.com>
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Reviewed-by: Joseph Tsai <joetsai@digital-static.net>
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2022-12-02 16:30:23 +00:00
Russ Cox
5a4e440f48 archive/zip: use proper doc comment for Deprecated notes
End-of-line comments are not doc comments,
so Deprecated notes in them are not recognized
as deprecation notices. Rewrite the comments.

Change-Id: Idc4681924f9a7e9ead62f672ef8a763e70db1f0f
Reviewed-on: https://go-review.googlesource.com/c/go/+/453616
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2022-12-02 16:30:21 +00:00
Russ Cox
d71b1c3dcc archive/tar: use proper doc comment for Deprecated notes
End-of-line comments are not doc comments,
so Deprecated notes in them are not recognized
as deprecation notices. Rewrite the comments.

Change-Id: Idb19603d7fc2ec8e3a2f74bacb74fbbec5583d20
Reviewed-on: https://go-review.googlesource.com/c/go/+/453615
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Russ Cox <rsc@golang.org>
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Reviewed-by: Joseph Tsai <joetsai@digital-static.net>
Reviewed-by: Ian Lance Taylor <iant@google.com>
2022-12-02 16:30:19 +00:00
Russ Cox
1711f953e4 cmd/api: track deprecations
Deprecating an API creates notices that go out to potentially
millions of Go developers encouraging them to update their code.
The choice to deprecate an API is as important as the choice to
add a new API. We should track those and make them explicit.
This will also ensure that deprecations go through proposal review.

Change-Id: Ide9f60c32e5a88fb133e0dfedd984b8b0f70f510
Reviewed-on: https://go-review.googlesource.com/c/go/+/453259
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
Auto-Submit: Russ Cox <rsc@golang.org>
Reviewed-by: David Chase <drchase@google.com>
2022-12-02 16:29:41 +00:00
Robert Griesemer
8fd2875c3e go/types, types2: make the new comparable semantics the default
Ordinary interface types now satisfy comparable constraints. This
is a fully backward-compatible change: it simply permits additional
code to be valid that wasn't valid before.

This change makes the new comparable semantics the default behavior,
depending on the Go -lang version.

It also renames the flag types2.Config.AltComparableSemantics to
types2.Config.OldComparableSemantics and inverts its meaning
(or types.Config.oldComparableSemantics respectively).

Add new predicate Satisfies (matching the predicate Implements but
for constraint satisfaction), per the proposal description.

Adjust some existing tests by setting -oldComparableSemantics
and add some new tests that verify version-dependent behavior.

The compiler flag -oldcomparable may be used to temporarily
switch back to the Go 1.18/1.19 behavior should this change
cause problems, or to identify that a problem is unrelated
to this change. The flag will be removed for Go 1.21.

For #52509.
For #56548.
For #57011.

Change-Id: I8b3b3d9d492fc24b0693567055f0053ccb5aeb42
Reviewed-on: https://go-review.googlesource.com/c/go/+/454575
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2022-12-01 19:48:07 +00:00
Filippo Valsorda
831c6509cc crypto/ed25519: implement Ed25519ctx and Ed25519ph with context
This is missing a test for Ed25519ph with context, since the RFC doesn't
provide one.

Fixes #31804

Change-Id: I20947374c51c6b22fb2835317d00edf816c9a2d2
Reviewed-on: https://go-review.googlesource.com/c/go/+/404274
Auto-Submit: Filippo Valsorda <filippo@golang.org>
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2022-11-21 15:23:39 +00:00
Filippo Valsorda
5f60f844be crypto/ecdsa,crypto/x509: add encoding paths for NIST crypto/ecdh keys
Fixes #56088
Updates #52221

Change-Id: Id2f806a116100a160be7daafc3e4c0be2acdd6a9
Reviewed-on: https://go-review.googlesource.com/c/go/+/450816
Run-TryBot: Filippo Valsorda <filippo@golang.org>
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2022-11-19 16:45:10 +00:00
Roland Shoemaker
04d6aa6514 crypto/x509: implement SetFallbackRoots
Adds a method which allows users to set a fallback certificate pool for
usage during verification if the system certificate pool is empty.

Updates #43958

Change-Id: I279dd2f753743bce19790f2ae29f063c89c9359d
Reviewed-on: https://go-review.googlesource.com/c/go/+/449235
Run-TryBot: Roland Shoemaker <roland@golang.org>
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Reviewed-by: Damien Neil <dneil@google.com>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
2022-11-18 23:57:10 +00:00
Gabor Tanz
f64c2a2ce5 crypto/tls: add CertificateVerificationError to tls handshake
Fixes #48152

Change-Id: I503f088edeb5574fd5eb5905bff7c3c23b2bc8fc
GitHub-Last-Rev: 2b0e982f3f
GitHub-Pull-Request: golang/go#56686
Reviewed-on: https://go-review.googlesource.com/c/go/+/449336
Run-TryBot: Roland Shoemaker <roland@golang.org>
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2022-11-18 18:50:57 +00:00
Damien Neil
a2d8157a7e archive/tar, archive/zip: return ErrInsecurePath for unsafe paths
Return a distinguishable error when reading an archive file
with a path that is:

	- absolute
	- escapes the current directory (../a)
	- on Windows, a reserved name such as NUL

Users may ignore this error and proceed if they do not need name
sanitization or intend to perform it themselves.

Fixes #25849
Fixes #55356

Change-Id: Ieefa163f00384bc285ab329ea21a6561d39d8096
Reviewed-on: https://go-review.googlesource.com/c/go/+/449937
Reviewed-by: Joseph Tsai <joetsai@digital-static.net>
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2022-11-16 23:36:48 +00:00
Damien Neil
6d0bf438e3 path/filepath: add IsLocal
IsLocal reports whether a path lexically refers to a location
contained within the directory in which it is evaluated.
It identifies paths that are absolute, escape a directory
with ".." elements, and (on Windows) paths that reference
reserved device names.

For #56219.

Change-Id: I35edfa3ce77b40b8e66f1fc8e0ff73cfd06f2313
Reviewed-on: https://go-review.googlesource.com/c/go/+/449239
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2022-11-16 23:17:58 +00:00
Filippo Valsorda
dafc915204 crypto/ecdh: move ECDH method to PrivateKey
Fixes #56052

Change-Id: Icacba0ed0f77519bca2140c8af68407af97f9734
Reviewed-on: https://go-review.googlesource.com/c/go/+/450335
Run-TryBot: Filippo Valsorda <filippo@golang.org>
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2022-11-16 14:37:29 +00:00
Changkun Ou
395323c4d0 sync: add new Map method Swap, CompareAndSwap, CompareAndDelete
name                                                   time/op
SwapCollision/*sync_test.DeepCopyMap-8                  235ns ± 0%
SwapCollision/*sync_test.RWMutexMap-8                   145ns ± 0%
SwapCollision/*sync.Map-8                               153ns ± 0%
SwapMostlyHits/*sync_test.DeepCopyMap-8                48.2µs ± 0%
SwapMostlyHits/*sync_test.RWMutexMap-8                  190ns ± 0%
SwapMostlyHits/*sync.Map-8                             28.3ns ± 0%
SwapMostlyMisses/*sync_test.DeepCopyMap-8               681ns ± 0%
SwapMostlyMisses/*sync_test.RWMutexMap-8                336ns ± 0%
SwapMostlyMisses/*sync.Map-8                            523ns ± 0%
CompareAndSwapCollision/*sync_test.DeepCopyMap-8       3.99ns ± 0%
CompareAndSwapCollision/*sync_test.RWMutexMap-8         151ns ± 0%
CompareAndSwapCollision/*sync.Map-8                    21.6ns ± 0%
CompareAndSwapNoExistingKey/*sync_test.DeepCopyMap-8   3.95ns ± 0%
CompareAndSwapNoExistingKey/*sync_test.RWMutexMap-8     126ns ± 0%
CompareAndSwapNoExistingKey/*sync.Map-8                6.11ns ± 0%
CompareAndSwapValueNotEqual/*sync_test.DeepCopyMap-8   2.15ns ± 0%
CompareAndSwapValueNotEqual/*sync_test.RWMutexMap-8     132ns ± 0%
CompareAndSwapValueNotEqual/*sync.Map-8                5.32ns ± 0%
CompareAndSwapMostlyHits/*sync_test.RWMutexMap-8        219ns ± 0%
CompareAndSwapMostlyHits/*sync.Map-8                   27.1ns ± 0%
CompareAndSwapMostlyMisses/*sync_test.DeepCopyMap-8    13.0ns ± 0%
CompareAndSwapMostlyMisses/*sync_test.RWMutexMap-8      147ns ± 0%
CompareAndSwapMostlyMisses/*sync.Map-8                 19.6ns ± 0%
CompareAndDeleteCollision/*sync_test.DeepCopyMap-8     2.23ns ± 0%
CompareAndDeleteCollision/*sync_test.RWMutexMap-8       131ns ± 0%
CompareAndDeleteCollision/*sync.Map-8                  16.2ns ± 0%
CompareAndDeleteMostlyHits/*sync_test.RWMutexMap-8      367ns ± 0%
CompareAndDeleteMostlyHits/*sync.Map-8                 33.1ns ± 0%
CompareAndDeleteMostlyMisses/*sync_test.DeepCopyMap-8  8.75ns ± 0%
CompareAndDeleteMostlyMisses/*sync_test.RWMutexMap-8    134ns ± 0%
CompareAndDeleteMostlyMisses/*sync.Map-8               10.9ns ± 0%

name                                                   alloc/op
SwapCollision/*sync_test.DeepCopyMap-8                   336B ± 0%
SwapCollision/*sync_test.RWMutexMap-8                   0.00B
SwapCollision/*sync.Map-8                               16.0B ± 0%
SwapMostlyHits/*sync_test.DeepCopyMap-8                82.1kB ± 0%
SwapMostlyHits/*sync_test.RWMutexMap-8                  12.0B ± 0%
SwapMostlyHits/*sync.Map-8                              28.0B ± 0%
SwapMostlyMisses/*sync_test.DeepCopyMap-8                713B ± 0%
SwapMostlyMisses/*sync_test.RWMutexMap-8                23.0B ± 0%
SwapMostlyMisses/*sync.Map-8                             129B ± 0%
CompareAndSwapCollision/*sync_test.DeepCopyMap-8        0.00B
CompareAndSwapCollision/*sync_test.RWMutexMap-8         0.00B
CompareAndSwapCollision/*sync.Map-8                     3.00B ± 0%
CompareAndSwapNoExistingKey/*sync_test.DeepCopyMap-8    8.00B ± 0%
CompareAndSwapNoExistingKey/*sync_test.RWMutexMap-8     8.00B ± 0%
CompareAndSwapNoExistingKey/*sync.Map-8                 8.00B ± 0%
CompareAndSwapValueNotEqual/*sync_test.DeepCopyMap-8    0.00B
CompareAndSwapValueNotEqual/*sync_test.RWMutexMap-8     0.00B
CompareAndSwapValueNotEqual/*sync.Map-8                 0.00B
CompareAndSwapMostlyHits/*sync_test.RWMutexMap-8        18.0B ± 0%
CompareAndSwapMostlyHits/*sync.Map-8                    33.0B ± 0%
CompareAndSwapMostlyMisses/*sync_test.DeepCopyMap-8     24.0B ± 0%
CompareAndSwapMostlyMisses/*sync_test.RWMutexMap-8      23.0B ± 0%
CompareAndSwapMostlyMisses/*sync.Map-8                  23.0B ± 0%
CompareAndDeleteCollision/*sync_test.DeepCopyMap-8      0.00B
CompareAndDeleteCollision/*sync_test.RWMutexMap-8       0.00B
CompareAndDeleteCollision/*sync.Map-8                   0.00B
CompareAndDeleteMostlyHits/*sync_test.RWMutexMap-8      23.0B ± 0%
CompareAndDeleteMostlyHits/*sync.Map-8                  39.0B ± 0%
CompareAndDeleteMostlyMisses/*sync_test.DeepCopyMap-8   16.0B ± 0%
CompareAndDeleteMostlyMisses/*sync_test.RWMutexMap-8    15.0B ± 0%
CompareAndDeleteMostlyMisses/*sync.Map-8                15.0B ± 0%

name                                                   allocs/op
SwapCollision/*sync_test.DeepCopyMap-8                   2.00 ± 0%
SwapCollision/*sync_test.RWMutexMap-8                    0.00
SwapCollision/*sync.Map-8                                1.00 ± 0%
SwapMostlyHits/*sync_test.DeepCopyMap-8                  4.00 ± 0%
SwapMostlyHits/*sync_test.RWMutexMap-8                   1.00 ± 0%
SwapMostlyHits/*sync.Map-8                               2.00 ± 0%
SwapMostlyMisses/*sync_test.DeepCopyMap-8                6.00 ± 0%
SwapMostlyMisses/*sync_test.RWMutexMap-8                 2.00 ± 0%
SwapMostlyMisses/*sync.Map-8                             6.00 ± 0%
CompareAndSwapCollision/*sync_test.DeepCopyMap-8         0.00
CompareAndSwapCollision/*sync_test.RWMutexMap-8          0.00
CompareAndSwapCollision/*sync.Map-8                      0.00
CompareAndSwapNoExistingKey/*sync_test.DeepCopyMap-8     1.00 ± 0%
CompareAndSwapNoExistingKey/*sync_test.RWMutexMap-8      0.00
CompareAndSwapNoExistingKey/*sync.Map-8                  1.00 ± 0%
CompareAndSwapValueNotEqual/*sync_test.DeepCopyMap-8     0.00
CompareAndSwapValueNotEqual/*sync_test.RWMutexMap-8      0.00
CompareAndSwapValueNotEqual/*sync.Map-8                  0.00
CompareAndSwapMostlyHits/*sync_test.RWMutexMap-8         2.00 ± 0%
CompareAndSwapMostlyHits/*sync.Map-8                     3.00 ± 0%
CompareAndSwapMostlyMisses/*sync_test.DeepCopyMap-8      2.00 ± 0%
CompareAndSwapMostlyMisses/*sync_test.RWMutexMap-8       2.00 ± 0%
CompareAndSwapMostlyMisses/*sync.Map-8                   2.00 ± 0%
CompareAndDeleteCollision/*sync_test.DeepCopyMap-8       0.00
CompareAndDeleteCollision/*sync_test.RWMutexMap-8        0.00
CompareAndDeleteCollision/*sync.Map-8                    0.00
CompareAndDeleteMostlyHits/*sync_test.RWMutexMap-8       2.00 ± 0%
CompareAndDeleteMostlyHits/*sync.Map-8                   3.00 ± 0%
CompareAndDeleteMostlyMisses/*sync_test.DeepCopyMap-8    2.00 ± 0%
CompareAndDeleteMostlyMisses/*sync_test.RWMutexMap-8     1.00 ± 0%
CompareAndDeleteMostlyMisses/*sync.Map-8                 1.00 ± 0%

Fixes #51972

Change-Id: I469e71033592997832c3e8ebdad1b8950a70c99c
Reviewed-on: https://go-review.googlesource.com/c/go/+/399094
Run-TryBot: Changkun Ou <mail@changkun.de>
Reviewed-by: Joedian Reid <joedian@golang.org>
Auto-Submit: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
2022-11-15 17:35:42 +00:00
Damien Neil
fd0c0db4a4 net/http: add ResponseController and per-handler timeouts
The ResponseController type provides a discoverable interface
to optional methods implemented by ResponseWriters.

	c := http.NewResponseController(w)
	c.Flush()

vs.

	if f, ok := w.(http.Flusher); ok {
		f.Flush()
	}

Add the ability to control per-request read and write deadlines
via the ResponseController SetReadDeadline and SetWriteDeadline
methods.

For #54136

Change-Id: I3f97de60d4c9ff150cda559ef86c6620eee665d2
Reviewed-on: https://go-review.googlesource.com/c/go/+/436890
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
Run-TryBot: Damien Neil <dneil@google.com>
2022-11-10 18:18:03 +00:00
Aleks Rudzitis
e48fc2665e crypto: allow hash.Hash for OAEP and MGF1 to be specified independently
crypto/rsa assumes RSA OAEP uses the same hash to be used for both the label
and the mask generation function. However, implementations in other languages,
such as Java and Python, allow these parameters to be specified independently.

This change allows the MGF hash to be specified independently for decrypt
operations in order to allow decrypting ciphertexts generated in other
environments.

Fixes: #19974
Change-Id: If453d628f0da354ceb3b52863f30087471670f7b
Reviewed-on: https://go-review.googlesource.com/c/go/+/418874
Auto-Submit: Andrew Bonventre <andybons@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Andrew Bonventre <andybons@golang.org>
Run-TryBot: Andrew Bonventre <andybons@golang.org>
2022-11-09 23:51:34 +00:00
Bryan C. Mills
e70f74b0aa api/next/54299: add missing newline
Updates #54299.

Change-Id: I20a9191fa3c78810987ace69527d34091c4a42fb
Reviewed-on: https://go-review.googlesource.com/c/go/+/449215
Run-TryBot: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Bryan Mills <bcmills@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
2022-11-09 22:23:18 +00:00
cuiweixie
2f4d5c3b79 net/http: add Transport.OnProxyConnectResponse
Fixes #54299

Change-Id: I3a29527bde7ac71f3824e771982db4257234e9ef
Reviewed-on: https://go-review.googlesource.com/c/go/+/447216
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: xie cui <523516579@qq.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
Reviewed-by: Damien Neil <dneil@google.com>
2022-11-09 17:41:34 +00:00
Sameer Ajmani
5b42f89e39 context: add APIs for writing and reading cancelation cause
Extend the context package to allow users to specify why a context was
canceled in the form of an error, the "cause". Users write the cause
by calling WithCancelCause to construct a derived context, then
calling cancel(cause) to cancel the context with the provided cause.
Users retrieve the cause by calling context.Cause(ctx), which returns
the cause of the first cancelation for ctx or any of its parents.

The cause is implemented as a field of cancelCtx, since only cancelCtx
can be canceled. Calling cancel copies the cause to all derived (child)
cancelCtxs. Calling Cause(ctx) finds the nearest parent cancelCtx by
looking up the context value keyed by cancelCtxKey.

API changes:
+pkg context, func Cause(Context) error
+pkg context, func WithCancelCause(Context) (Context, CancelCauseFunc)
+pkg context, type CancelCauseFunc func(error)

Fixes #26356
Fixes #51365

Change-Id: I15b62bd454c014db3f4f1498b35204451509e641
Reviewed-on: https://go-review.googlesource.com/c/go/+/375977
Reviewed-by: Damien Neil <dneil@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Sameer Ajmani <sameer@golang.org>
Auto-Submit: Sameer Ajmani <sameer@golang.org>
2022-11-08 13:51:16 +00:00
cuiweixie
7ddbadb397 api: add newline to 55301.txt
Change-Id: I9bcaba0ca9c30b204bf126dbfec4cd48d9ebe2ea
Reviewed-on: https://go-review.googlesource.com/c/go/+/447896
Reviewed-by: Than McIntosh <thanm@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Auto-Submit: Than McIntosh <thanm@google.com>
Run-TryBot: xie cui <523516579@qq.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2022-11-04 14:19:00 +00:00
cuiweixie
90b40c0496 net: add ControlContext to Dialer
Fixes #55301

Change-Id: Ie8abcd383eee9af75038bde908ac638f43d33b7e
Reviewed-on: https://go-review.googlesource.com/c/go/+/444955
Reviewed-by: Bryan Mills <bcmills@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: xie cui <523516579@qq.com>
2022-11-04 02:00:13 +00:00
Russ Cox
ca8b31920a cmd/api: make check pickier about api/*.txt
We don't have a formatter for these files, so check here that
they are in the right form to allow 'cat next/*.txt >go1.X.txt'
at the end of each cycle.

Fix the api files that the check finds.

Change-Id: I0c5e4ab11751c7d0afce32503131d487313f41c0
Reviewed-on: https://go-review.googlesource.com/c/go/+/431335
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Russ Cox <rsc@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
2022-11-02 19:08:10 +00:00
cuiweixie
581a822a9e regexp: add ErrLarge error
For #56041

Change-Id: I6c98458b5c0d3b3636a53ee04fc97221f3fd8bbc
Reviewed-on: https://go-review.googlesource.com/c/go/+/444817
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Run-TryBot: xie cui <523516579@qq.com>
2022-11-02 18:15:21 +00:00
Bryan C. Mills
55eaae452c os/exec: add the Cancel and WaitDelay fields
Fixes #50436.

Change-Id: I9dff8caa317a04b7b2b605f810b8f12ef8ca485d
Reviewed-on: https://go-review.googlesource.com/c/go/+/401835
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Bryan Mills <bcmills@google.com>
Auto-Submit: Bryan Mills <bcmills@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
2022-10-25 03:34:36 +00:00
Filippo Valsorda
a1901f898b crypto/ed25519: implement Ed25519ph in Sign and VerifyWithOptions
Updates #31804

Change-Id: I5a48dfc57401576902674aff20b557e4a8ce8ab8
Reviewed-on: https://go-review.googlesource.com/c/go/+/373076
Reviewed-by: Filippo Valsorda <valsorda@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Run-TryBot: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Roland Shoemaker <roland@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Katie Hockman <katie@golang.org>
Reviewed-by: David Chase <drchase@google.com>
2022-10-24 12:11:20 +00:00
Matt Layher
d5efd0dd63 net/netip: add IPv6LinkLocalAllRouters and IPv6Loopback
Fixes #51766
Fixes #51777

Change-Id: I0510175c20c06442d78b2581cfe218e66be1c35b
Reviewed-on: https://go-review.googlesource.com/c/go/+/412475
Auto-Submit: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Damien Neil <dneil@google.com>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Matt Layher <mdlayher@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Auto-Submit: Damien Neil <dneil@google.com>
2022-10-21 20:14:41 +00:00
Joe Tsai
61f0409c31 reflect: add Value.Grow
The Grow method is like the proposed slices.Grow function
in that it ensures that the slice has enough capacity to append
n elements without allocating.

The implementation of Grow is a thin wrapper over runtime.growslice.
This also changes Append and AppendSlice to use growslice under the hood.

Fixes #48000

Change-Id: I992a58584a2ff1448c1c2bc0877fe76073609111
Reviewed-on: https://go-review.googlesource.com/c/go/+/389635
Run-TryBot: Joseph Tsai <joetsai@digital-static.net>
Reviewed-by: Keith Randall <khr@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
2022-10-15 17:02:11 +00:00
Than McIntosh
47a538842b runtime/coverage: revise/shorten function names
Use shorter more Go-like names for the new APIs being added in the
runtime/coverage package for writing coverage data under user control
from server programs. Old names were a bit too clunky/verbose.

Updates #51430.

Change-Id: Ifdd5b882a88613c7c4342b40ed93b58547483c77
Reviewed-on: https://go-review.googlesource.com/c/go/+/438503
Reviewed-by: Russ Cox <rsc@golang.org>
Run-TryBot: Than McIntosh <thanm@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2022-10-05 14:59:05 +00:00
Paul E. Murphy
27d4cdd1a6 debug/elf: fix typo in R_PPC64_TPREL34 and R_PPC64_DTPREL34
The suffix should be 34 not 28. I misread the name because the
reloc listed before these two in the ABI is named "R_PC64_PCREL28".

Updates #54345

Change-Id: Ie8238f55e441c787d70ead58e0a177c650f8b89e
Reviewed-on: https://go-review.googlesource.com/c/go/+/435415
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Run-TryBot: Paul Murphy <murp@ibm.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
2022-09-29 19:54:44 +00:00
Damien Neil
4a0a2b33df errors, fmt: add support for wrapping multiple errors
An error which implements an "Unwrap() []error" method wraps all the
non-nil errors in the returned []error.

We replace the concept of the "error chain" inspected by errors.Is
and errors.As with the "error tree". Is and As perform a pre-order,
depth-first traversal of an error's tree. As returns the first
matching result, if any.

The new errors.Join function returns an error wrapping a list of errors.

The fmt.Errorf function now supports multiple instances of the %w verb.

For #53435.

Change-Id: Ib7402e70b68e28af8f201d2b66bd8e87ccfb5283
Reviewed-on: https://go-review.googlesource.com/c/go/+/432898
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Rob Pike <r@golang.org>
Run-TryBot: Damien Neil <dneil@google.com>
Reviewed-by: Joseph Tsai <joetsai@digital-static.net>
2022-09-29 18:40:40 +00:00
Than McIntosh
ecd112c0d1 runtime/coverage: apis to emit counter data under user control
Add hooks/apis to support writing of coverage counter data and
meta-data under user control (from within an executing "-cover"
binary), so as to provide a way to obtain coverage data from programs
that do not terminate. This patch also adds a hook for clearing the
coverage counter data for a running program, something that can be
helpful when the intent is to capture coverage info from a specific
window of program execution.

Updates #51430.

Change-Id: I34ee6cee52e5597fa3698b8b04f1b34a2a2a418f
Reviewed-on: https://go-review.googlesource.com/c/go/+/401236
Reviewed-by: David Chase <drchase@google.com>
2022-09-29 14:14:24 +00:00
Alan Donovan
f1d281fe4d go/ast: record start and end of file in File.File{Start,End}
This change causes the parser to record the positions of the first
and last character in the file in new ast.File fields FileStart
and FileEnd.

The behavior of the existing Pos() and End() methods,
which record the span of declarations, must remain unchanged
for compatibility.

Fixes golang/go#53202

Change-Id: I250b19e69f41e3590292c3fe6dea1943ec98f629
Reviewed-on: https://go-review.googlesource.com/c/go/+/427955
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@google.com>
Run-TryBot: Alan Donovan <adonovan@google.com>
Auto-Submit: Alan Donovan <adonovan@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
2022-09-28 20:37:59 +00:00
Roger Peppe
d8e6ed3262 time: implement Compare method
Fixes #50770.

Change-Id: If0104883bb409ec85827fa5b570f68099ad4fd1d
Reviewed-on: https://go-review.googlesource.com/c/go/+/382734
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: hopehook <hopehook@golangcn.org>
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Reviewed-by: Joseph Tsai <joetsai@digital-static.net>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
2022-09-19 17:10:49 +00:00
Yuval Pavel Zholkover
d8220ac32f syscall: remove FreeBSD 11 and below 64bit inode compatibility shims
Update #53280

Change-Id: Iaa7c0cf5dbefaa8e14c2de499f99755911c17672
Reviewed-on: https://go-review.googlesource.com/c/go/+/411596
Reviewed-by: Meng Zhuo <mzh@golangcn.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Yuval Pavel Zholkover <paulzhol@gmail.com>
Reviewed-by: Dmitri Goutnik <dgoutnik@gmail.com>
2022-09-16 01:17:28 +00:00
Kir Kolyshkin
bca17d16ca syscall: add CgroupFD support for ForkExec on Linux
Implement CLONE_INTO_CGROUP feature, allowing to put a child in a
specified cgroup in a clean and simple way. Note that the feature only
works for cgroup v2, and requires Linux kernel 5.7 or newer.

Using the feature requires a new syscall, clone3. Currently this is the
only reason to use clone3, but the code is structured in a way so that
other cases may be easily added in the future.

Add a test case.

While at it, try to simplify the syscall calling code in
forkAndExecInChild1, which became complicated over time because:

1. It was using either rawVforkSyscall or RawSyscall6 depending on
   whether CLONE_NEWUSER was set.

2. On Linux/s390, the first two arguments to clone(2) system call are
   swapped (which deserved a mention in Linux ABI hall of shame). It
   was worked around in rawVforkSyscall on s390, but had to be
   implemented via a switch/case when using RawSyscall6, making the code
   less clear.

Let's

 - modify rawVforkSyscall to have two arguments (which is also required
   for clone3);

 - remove the arguments workaround from s390 asm, instead implementing
   arguments swap in the caller (which still looks ugly but at least
   it's done once and is clearly documented now);

 - use rawVforkSyscall for all cases (since it is essentially similar to
   RawSyscall6, except for having less parameters, not returning r2, and
   saving/restoring the return address before/after syscall on 386 and
   amd64).

Updates #51246.

Change-Id: Ifcd418ebead9257177338ffbcccd0bdecb94474e
Reviewed-on: https://go-review.googlesource.com/c/go/+/417695
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Run-TryBot: Kirill Kolyshkin <kolyshkin@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2022-09-09 15:34:16 +00:00
Paul E. Murphy
2b6ff90851 debug/elf: define additional PPC64 ELFv2 relocations
The PPC64 ELFv2 supplement version 1.5 defines a handful of
new relocation types, similarly some were not added.

Fixes #54345

Change-Id: Id39b29d404298fca4a10ccf1e96b5964dc452c9e
Reviewed-on: https://go-review.googlesource.com/c/go/+/425555
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Heschi Kreinick <heschi@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2022-09-08 13:31:46 +00:00
cuiweixie
67e6542467 go/ast: add Range token.Pos to RangeStmt
For #50429

Change-Id: Idb027244f901d9f482c894b5b979a054d0f07de5
Reviewed-on: https://go-review.googlesource.com/c/go/+/426091
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Robert Findley <rfindley@google.com>
2022-09-05 08:12:37 +00:00
Cuong Manh Le
846c378b8c cmd/cgo: add and use runtime/cgo.Incomplete instead of //go:notinheap
Updates #46731

Change-Id: Ia83f27c177cc2f57e240cb5c6708d4552423f5be
Reviewed-on: https://go-review.googlesource.com/c/go/+/421879
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: David Chase <drchase@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2022-08-28 16:04:49 +00:00