mirror of
https://github.com/rclone/rclone.git
synced 2024-12-04 06:16:39 +01:00
39 lines
773 B
Go
39 lines
773 B
Go
// Copyright (C) 2019 Storj Labs, Inc.
|
|
// See LICENSE for copying information.
|
|
|
|
package errs2
|
|
|
|
import "sync"
|
|
|
|
// Group is a collection of goroutines working on subtasks that are part of
|
|
// the same overall task.
|
|
type Group struct {
|
|
wg sync.WaitGroup
|
|
mu sync.Mutex
|
|
errors []error
|
|
}
|
|
|
|
// Go calls the given function in a new goroutine.
|
|
func (group *Group) Go(f func() error) {
|
|
group.wg.Add(1)
|
|
|
|
go func() {
|
|
defer group.wg.Done()
|
|
|
|
if err := f(); err != nil {
|
|
group.mu.Lock()
|
|
defer group.mu.Unlock()
|
|
|
|
group.errors = append(group.errors, err)
|
|
}
|
|
}()
|
|
}
|
|
|
|
// Wait blocks until all function calls from the Go method have returned, then
|
|
// returns all errors (if any) from them.
|
|
func (group *Group) Wait() []error {
|
|
group.wg.Wait()
|
|
|
|
return group.errors
|
|
}
|