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authordependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>2021-09-13 12:29:39 +0000
committerGitHub <noreply@github.com>2021-09-13 12:29:39 +0000
commiteec59cea2c20cf5e515bdcbc8c35eba3e07da607 (patch)
tree71ec92fd12f16d15f25facd599ef097c2650c5f9 /vendor/golang.org/x
parent0f3d3bd21da0b67542c44c832f0e1642c5f639cf (diff)
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Bump github.com/containers/storage from 1.35.0 to 1.36.0
Bumps [github.com/containers/storage](https://github.com/containers/storage) from 1.35.0 to 1.36.0. - [Release notes](https://github.com/containers/storage/releases) - [Changelog](https://github.com/containers/storage/blob/main/docs/containers-storage-changes.md) - [Commits](https://github.com/containers/storage/compare/v1.35.0...v1.36.0) --- updated-dependencies: - dependency-name: github.com/containers/storage dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com>
Diffstat (limited to 'vendor/golang.org/x')
-rw-r--r--vendor/golang.org/x/sync/errgroup/errgroup.go66
1 files changed, 66 insertions, 0 deletions
diff --git a/vendor/golang.org/x/sync/errgroup/errgroup.go b/vendor/golang.org/x/sync/errgroup/errgroup.go
new file mode 100644
index 000000000..9857fe53d
--- /dev/null
+++ b/vendor/golang.org/x/sync/errgroup/errgroup.go
@@ -0,0 +1,66 @@
+// Copyright 2016 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.
+
+// Package errgroup provides synchronization, error propagation, and Context
+// cancelation for groups of goroutines working on subtasks of a common task.
+package errgroup
+
+import (
+ "context"
+ "sync"
+)
+
+// 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.
+type Group struct {
+ cancel func()
+
+ wg sync.WaitGroup
+
+ errOnce sync.Once
+ err error
+}
+
+// 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)
+ return &Group{cancel: cancel}, ctx
+}
+
+// Wait blocks until all function calls from the Go method have returned, then
+// returns the first non-nil error (if any) from them.
+func (g *Group) Wait() error {
+ g.wg.Wait()
+ if g.cancel != nil {
+ g.cancel()
+ }
+ return g.err
+}
+
+// Go calls the given function in a new goroutine.
+//
+// The first call to return a non-nil error cancels the group; its error will be
+// returned by Wait.
+func (g *Group) Go(f func() error) {
+ g.wg.Add(1)
+
+ go func() {
+ defer g.wg.Done()
+
+ if err := f(); err != nil {
+ g.errOnce.Do(func() {
+ g.err = err
+ if g.cancel != nil {
+ g.cancel()
+ }
+ })
+ }
+ }()
+}