// PrioritizeWorkUnits changes the priorities of some number of work
// units. The actual work units are in options["work_unit_keys"]. A
// higher priority results in the work units being scheduled sooner.
func (jobs *JobServer) PrioritizeWorkUnits(workSpecName string, options map[string]interface{}) (bool, string, error) {
var (
err error
query coordinate.WorkUnitQuery
workSpec coordinate.WorkSpec
)
pwuOptions := PrioritizeWorkUnitsOptions{
Priority: math.NaN(),
Adjustment: math.NaN(),
}
workSpec, err = jobs.Namespace.WorkSpec(workSpecName)
if err == nil {
err = decode(&pwuOptions, options)
}
if err == nil && pwuOptions.WorkUnitKeys == nil {
return false, "missing work_unit_keys", err
}
if err == nil {
query.Names = pwuOptions.WorkUnitKeys
if !math.IsNaN(pwuOptions.Priority) {
err = workSpec.SetWorkUnitPriorities(query, pwuOptions.Priority)
} else if !math.IsNaN(pwuOptions.Adjustment) {
err = workSpec.AdjustWorkUnitPriorities(query, pwuOptions.Adjustment)
}
}
return err == nil, "", err
}