diff options
author | Sebastiaan van Stijn <github@gone.nl> | 2022-11-05 19:58:59 +0100 |
---|---|---|
committer | Sebastiaan van Stijn <github@gone.nl> | 2022-11-15 14:56:04 +0100 |
commit | d4e2341f930493fadfd422d6e237a5e9e92ed237 (patch) | |
tree | eb1424b35f277a847cebbfd23e07e41a534fe115 | |
parent | e32bfd347c1db79a1badcf2b35687df4c5cb02ea (diff) | |
download | docker-d4e2341f930493fadfd422d6e237a5e9e92ed237.tar.gz |
vendor: golang.org/x/sync v0.1.0
The golang.org/x/ projects are now doing tagged releases.
full diff: https://github.com/golang/sync/compare/036812b2e83c...v0.1.0
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit 4965f19626bc70c8b59ba6391bf4587e3f500188)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
-rw-r--r-- | vendor.mod | 2 | ||||
-rw-r--r-- | vendor.sum | 3 | ||||
-rw-r--r-- | vendor/golang.org/x/sync/AUTHORS | 3 | ||||
-rw-r--r-- | vendor/golang.org/x/sync/CONTRIBUTORS | 3 | ||||
-rw-r--r-- | vendor/golang.org/x/sync/errgroup/errgroup.go | 74 | ||||
-rw-r--r-- | vendor/golang.org/x/sync/singleflight/singleflight.go | 11 | ||||
-rw-r--r-- | vendor/modules.txt | 2 |
7 files changed, 76 insertions, 22 deletions
diff --git a/vendor.mod b/vendor.mod index 16f29710aa..4cda23725a 100644 --- a/vendor.mod +++ b/vendor.mod @@ -82,7 +82,7 @@ require ( github.com/vishvananda/netns v0.0.0-20210104183010-2eb08e3e575f go.etcd.io/bbolt v1.3.6 golang.org/x/net v0.0.0-20220906165146-f3363e06e74c - golang.org/x/sync v0.0.0-20210220032951-036812b2e83c + golang.org/x/sync v0.1.0 golang.org/x/sys v0.1.0 golang.org/x/time v0.0.0-20211116232009-f0f3c7e86c11 google.golang.org/genproto v0.0.0-20220502173005-c8bf987b8c21 diff --git a/vendor.sum b/vendor.sum index 3667dec63a..4b143f8bdf 100644 --- a/vendor.sum +++ b/vendor.sum @@ -1307,8 +1307,9 @@ golang.org/x/sync v0.0.0-20200317015054-43a5402ce75a/go.mod h1:RxMgew5VJxzue5/jJ golang.org/x/sync v0.0.0-20200625203802-6e8e738ad208/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= golang.org/x/sync v0.0.0-20201207232520-09787c993a3a/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= -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 v0.1.0 h1:wsuoTGHzEhffawBOhz5CYhcrV4IdKZbEyZjBMuTp12o= +golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= golang.org/x/sys v0.0.0-20180823144017-11551d06cbcc/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= diff --git a/vendor/golang.org/x/sync/AUTHORS b/vendor/golang.org/x/sync/AUTHORS deleted file mode 100644 index 15167cd746..0000000000 --- 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 1c4577e968..0000000000 --- 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 9857fe53d3..cbee7a4e23 100644 --- a/vendor/golang.org/x/sync/errgroup/errgroup.go +++ b/vendor/golang.org/x/sync/errgroup/errgroup.go @@ -8,22 +8,35 @@ 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() 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 @@ -45,14 +58,48 @@ func (g *Group) Wait() error { } // 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() + } + }) + } + }() +} + +// 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() { @@ -63,4 +110,23 @@ func (g *Group) Go(f func() error) { }) } }() + 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/singleflight/singleflight.go b/vendor/golang.org/x/sync/singleflight/singleflight.go index 690eb85013..8473fb7922 100644 --- a/vendor/golang.org/x/sync/singleflight/singleflight.go +++ b/vendor/golang.org/x/sync/singleflight/singleflight.go @@ -52,10 +52,6 @@ type call struct { val interface{} err error - // forgotten indicates whether Forget was called with this call's key - // while the call was still in flight. - forgotten bool - // These fields are read and written with the singleflight // mutex held before the WaitGroup is done, and are read but // not written after the WaitGroup is done. @@ -148,10 +144,10 @@ func (g *Group) doCall(c *call, key string, fn func() (interface{}, error)) { c.err = errGoexit } - c.wg.Done() g.mu.Lock() defer g.mu.Unlock() - if !c.forgotten { + c.wg.Done() + if g.m[key] == c { delete(g.m, key) } @@ -204,9 +200,6 @@ func (g *Group) doCall(c *call, key string, fn func() (interface{}, error)) { // an earlier call to complete. func (g *Group) Forget(key string) { g.mu.Lock() - if c, ok := g.m[key]; ok { - c.forgotten = true - } delete(g.m, key) g.mu.Unlock() } diff --git a/vendor/modules.txt b/vendor/modules.txt index 28ccb41d45..bb0b724491 100644 --- a/vendor/modules.txt +++ b/vendor/modules.txt @@ -948,7 +948,7 @@ golang.org/x/oauth2/google/internal/externalaccount golang.org/x/oauth2/internal golang.org/x/oauth2/jws golang.org/x/oauth2/jwt -# golang.org/x/sync v0.0.0-20210220032951-036812b2e83c +# golang.org/x/sync v0.1.0 ## explicit golang.org/x/sync/errgroup golang.org/x/sync/semaphore |