Dmitry Sergeev
44 lines
756 B
Go
44 lines
756 B
Go
package app
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import (
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"context"
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"errors"
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"fmt"
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)
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type Runner struct {
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Name string
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Run func(context.Context) error
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}
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type runnerResult struct {
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name string
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err error
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}
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func RunConcurrent(ctx context.Context, runners ...Runner) error {
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if len(runners) == 0 {
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return nil
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}
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ctx, cancel := context.WithCancel(ctx)
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defer cancel()
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results := make(chan runnerResult, len(runners))
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for _, runner := range runners {
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runner := runner
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go func() {
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results <- runnerResult{name: runner.Name, err: runner.Run(ctx)}
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}()
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}
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var resultErr error
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for range runners {
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result := <-results
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if result.err != nil {
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resultErr = errors.Join(resultErr, fmt.Errorf("%s flow: %w", result.name, result.err))
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cancel()
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}
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}
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return resultErr
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}
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