nimbus-eth1/hive_integration/nodocker/engine/cancun/step_paralel.nim

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import
./step
# A step that runs two or more steps in parallel
type ParallelSteps struct {
Steps []TestStep
}
func (step ParallelSteps) Execute(t *CancunTestContext) error {
# Run the steps in parallel
wg = sync.WaitGroup{}
errs = make(chan error, len(step.Steps))
for _, s = range step.Steps {
wg.Add(1)
go func(s TestStep) {
defer wg.Done()
if err = s.Execute(t); err != nil {
errs <- err
}
}(s)
}
wg.Wait()
close(errs)
for err = range errs {
return err
}
return nil
}
func (step ParallelSteps) Description() string {
desc = "ParallelSteps: running steps in parallel:\n"
for i, step = range step.Steps {
desc += fmt.Sprintf("%d: %s\n", i, step.Description())
}
return desc
}