From 3b225039b16ccc422da35ea3e14639c6a79224e9 Mon Sep 17 00:00:00 2001 From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com> Date: Fri, 7 Jul 2023 10:03:14 -0400 Subject: [PATCH] Bump golang.org/x/sync from 0.0.0-20210220032951-036812b2e83c to 0.3.0 (#128) Bumps [golang.org/x/sync](https://github.com/golang/sync) from 0.0.0-20210220032951-036812b2e83c to 0.3.0. - [Commits](https://github.com/golang/sync/commits/v0.3.0) --- updated-dependencies: - dependency-name: golang.org/x/sync dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> --- go.mod | 2 +- go.sum | 4 +- vendor/golang.org/x/sync/AUTHORS | 3 - vendor/golang.org/x/sync/CONTRIBUTORS | 3 - vendor/golang.org/x/sync/errgroup/errgroup.go | 82 +++++++++++++++++-- vendor/golang.org/x/sync/errgroup/go120.go | 14 ++++ .../golang.org/x/sync/errgroup/pre_go120.go | 15 ++++ vendor/modules.txt | 4 +- 8 files changed, 108 insertions(+), 19 deletions(-) delete mode 100644 vendor/golang.org/x/sync/AUTHORS delete mode 100644 vendor/golang.org/x/sync/CONTRIBUTORS create mode 100644 vendor/golang.org/x/sync/errgroup/go120.go create mode 100644 vendor/golang.org/x/sync/errgroup/pre_go120.go diff --git a/go.mod b/go.mod index 93b51439..21fa3b2d 100644 --- a/go.mod +++ b/go.mod @@ -9,7 +9,7 @@ require ( github.com/vultr/govultr/v2 v2.17.2 github.com/vultr/metadata v1.1.0 golang.org/x/oauth2 v0.10.0 - golang.org/x/sync v0.0.0-20210220032951-036812b2e83c + golang.org/x/sync v0.3.0 golang.org/x/sys v0.10.0 google.golang.org/grpc v1.56.2 ) diff --git a/go.sum b/go.sum index b577fe9f..df5e93e2 100644 --- a/go.sum +++ b/go.sum @@ -37,8 +37,8 @@ golang.org/x/net v0.12.0 h1:cfawfvKITfUsFCeJIHJrbSxpeu/E81khclypR0GVT50= golang.org/x/net v0.12.0/go.mod h1:zEVYFnQC7m/vmpQFELhcD1EWkZlX69l4oqgmer6hfKA= golang.org/x/oauth2 v0.10.0 h1:zHCpF2Khkwy4mMB4bv0U37YtJdTGW8jI0glAApi0Kh8= golang.org/x/oauth2 v0.10.0/go.mod h1:kTpgurOux7LqtuxjuyZa4Gj2gdezIt/jQtGnNFfypQI= -golang.org/x/sync v0.0.0-20210220032951-036812b2e83c h1:5KslGYwFpkhGh+Q16bwMP3cOontH8FOep7tGV86Y7SQ= -golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= +golang.org/x/sync v0.3.0 h1:ftCYgMx6zT/asHUrPw8BLLscYtGznsLAnjq5RH9P66E= +golang.org/x/sync v0.3.0/go.mod h1:FU7BRWz2tNW+3quACPkgCx/L+uEAv1htQ0V83Z9Rj+Y= golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= golang.org/x/sys v0.10.0 h1:SqMFp9UcQJZa+pmYuAKjd9xq1f0j5rLcDIk0mj4qAsA= diff --git a/vendor/golang.org/x/sync/AUTHORS b/vendor/golang.org/x/sync/AUTHORS deleted file mode 100644 index 15167cd7..00000000 --- a/vendor/golang.org/x/sync/AUTHORS +++ /dev/null @@ -1,3 +0,0 @@ -# This source code refers to The Go Authors for copyright purposes. -# The master list of authors is in the main Go distribution, -# visible at http://tip.golang.org/AUTHORS. diff --git a/vendor/golang.org/x/sync/CONTRIBUTORS b/vendor/golang.org/x/sync/CONTRIBUTORS deleted file mode 100644 index 1c4577e9..00000000 --- a/vendor/golang.org/x/sync/CONTRIBUTORS +++ /dev/null @@ -1,3 +0,0 @@ -# This source code was written by the Go contributors. -# The master list of contributors is in the main Go distribution, -# visible at http://tip.golang.org/CONTRIBUTORS. diff --git a/vendor/golang.org/x/sync/errgroup/errgroup.go b/vendor/golang.org/x/sync/errgroup/errgroup.go index 9857fe53..b18efb74 100644 --- a/vendor/golang.org/x/sync/errgroup/errgroup.go +++ b/vendor/golang.org/x/sync/errgroup/errgroup.go @@ -8,29 +8,42 @@ package errgroup import ( "context" + "fmt" "sync" ) +type token struct{} + // A Group is a collection of goroutines working on subtasks that are part of // the same overall task. // -// A zero Group is valid and does not cancel on error. +// A zero Group is valid, has no limit on the number of active goroutines, +// and does not cancel on error. type Group struct { - cancel func() + cancel func(error) wg sync.WaitGroup + sem chan token + errOnce sync.Once err error } +func (g *Group) done() { + if g.sem != nil { + <-g.sem + } + g.wg.Done() +} + // WithContext returns a new Group and an associated Context derived from ctx. // // The derived Context is canceled the first time a function passed to Go // returns a non-nil error or the first time Wait returns, whichever occurs // first. func WithContext(ctx context.Context) (*Group, context.Context) { - ctx, cancel := context.WithCancel(ctx) + ctx, cancel := withCancelCause(ctx) return &Group{cancel: cancel}, ctx } @@ -39,28 +52,81 @@ func WithContext(ctx context.Context) (*Group, context.Context) { func (g *Group) Wait() error { g.wg.Wait() if g.cancel != nil { - g.cancel() + g.cancel(g.err) } return g.err } // Go calls the given function in a new goroutine. +// It blocks until the new goroutine can be added without the number of +// active goroutines in the group exceeding the configured limit. // -// The first call to return a non-nil error cancels the group; its error will be -// returned by Wait. +// The first call to return a non-nil error cancels the group's context, if the +// group was created by calling WithContext. The error will be returned by Wait. func (g *Group) Go(f func() error) { + if g.sem != nil { + g.sem <- token{} + } + g.wg.Add(1) + go func() { + defer g.done() + if err := f(); err != nil { + g.errOnce.Do(func() { + g.err = err + if g.cancel != nil { + g.cancel(g.err) + } + }) + } + }() +} + +// TryGo calls the given function in a new goroutine only if the number of +// active goroutines in the group is currently below the configured limit. +// +// The return value reports whether the goroutine was started. +func (g *Group) TryGo(f func() error) bool { + if g.sem != nil { + select { + case g.sem <- token{}: + // Note: this allows barging iff channels in general allow barging. + default: + return false + } + } + + g.wg.Add(1) go func() { - defer g.wg.Done() + defer g.done() if err := f(); err != nil { g.errOnce.Do(func() { g.err = err if g.cancel != nil { - g.cancel() + g.cancel(g.err) } }) } }() + return true +} + +// SetLimit limits the number of active goroutines in this group to at most n. +// A negative value indicates no limit. +// +// Any subsequent call to the Go method will block until it can add an active +// goroutine without exceeding the configured limit. +// +// The limit must not be modified while any goroutines in the group are active. +func (g *Group) SetLimit(n int) { + if n < 0 { + g.sem = nil + return + } + if len(g.sem) != 0 { + panic(fmt.Errorf("errgroup: modify limit while %v goroutines in the group are still active", len(g.sem))) + } + g.sem = make(chan token, n) } diff --git a/vendor/golang.org/x/sync/errgroup/go120.go b/vendor/golang.org/x/sync/errgroup/go120.go new file mode 100644 index 00000000..7d419d37 --- /dev/null +++ b/vendor/golang.org/x/sync/errgroup/go120.go @@ -0,0 +1,14 @@ +// Copyright 2023 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +//go:build go1.20 +// +build go1.20 + +package errgroup + +import "context" + +func withCancelCause(parent context.Context) (context.Context, func(error)) { + return context.WithCancelCause(parent) +} diff --git a/vendor/golang.org/x/sync/errgroup/pre_go120.go b/vendor/golang.org/x/sync/errgroup/pre_go120.go new file mode 100644 index 00000000..1795c18a --- /dev/null +++ b/vendor/golang.org/x/sync/errgroup/pre_go120.go @@ -0,0 +1,15 @@ +// Copyright 2023 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +//go:build !go1.20 +// +build !go1.20 + +package errgroup + +import "context" + +func withCancelCause(parent context.Context) (context.Context, func(error)) { + ctx, cancel := context.WithCancel(parent) + return ctx, func(error) { cancel() } +} diff --git a/vendor/modules.txt b/vendor/modules.txt index 503c303d..eb54e003 100644 --- a/vendor/modules.txt +++ b/vendor/modules.txt @@ -42,8 +42,8 @@ golang.org/x/net/trace ## explicit; go 1.17 golang.org/x/oauth2 golang.org/x/oauth2/internal -# golang.org/x/sync v0.0.0-20210220032951-036812b2e83c -## explicit +# golang.org/x/sync v0.3.0 +## explicit; go 1.17 golang.org/x/sync/errgroup # golang.org/x/sys v0.10.0 ## explicit; go 1.17