Documentation
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Overview ¶
Package errgroup provides synchronization, error propagation, and Context cancelation for groups of goroutines working on subtasks of a common task.
errgroup.Group is related to sync.WaitGroup but adds handling of tasks returning errors.
Index ¶
Constants ¶
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Variables ¶
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Functions ¶
This section is empty.
Types ¶
type Group ¶
type Group struct {
// contains filtered or unexported fields
}
A Group is a collection of goroutines working on subtasks that are part of the same overall task.
A zero Group is valid, has no limit on the number of active goroutines, and does not cancel on error.
func WithContext ¶
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 (*Group) Go ¶
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's context, if the group was created by calling WithContext. The error will be returned by Wait.
Source Files