95 lines
2.6 KiB
Go
95 lines
2.6 KiB
Go
package nomad
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import "github.com/hashicorp/nomad/nomad/structs"
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// systemEvals are handled specially, each job may have a blocked eval on each node
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type systemEvals struct {
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// byJob maps a jobID to a nodeID to that job's single blocked evalID on that node
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byJob map[structs.NamespacedID]map[string]string
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// byNode maps a nodeID to a set of evalIDs
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byNode map[string]map[string]bool
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// evals maps evalIDs to an eval and token
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evals map[string]*wrappedEval
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}
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func newSystemEvals() *systemEvals {
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return &systemEvals{
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evals: map[string]*wrappedEval{},
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byJob: map[structs.NamespacedID]map[string]string{},
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byNode: map[string]map[string]bool{},
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}
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}
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func (s *systemEvals) Add(eval *structs.Evaluation, token string) {
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// store the eval by node id
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if _, ok := s.byNode[eval.NodeID]; !ok {
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s.byNode[eval.NodeID] = make(map[string]bool)
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}
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s.byNode[eval.NodeID][eval.ID] = true
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s.evals[eval.ID] = &wrappedEval{eval: eval, token: token}
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// link the job to the node for cleanup
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jobID := structs.NewNamespacedID(eval.JobID, eval.Namespace)
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if _, ok := s.byJob[jobID]; !ok {
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s.byJob[jobID] = make(map[string]string)
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}
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// if we're displacing the old blocked id for this job+node, delete it first
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if prevID, ok := s.byJob[jobID][eval.NodeID]; ok {
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prev, _ := s.Get(prevID)
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s.Remove(prev.eval)
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}
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// set this eval as the new eval for this job on this node
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s.byJob[jobID][eval.NodeID] = eval.ID
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}
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func (s *systemEvals) Get(evalID string) (*wrappedEval, bool) {
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w, ok := s.evals[evalID]
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return w, ok
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}
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func (s *systemEvals) Remove(eval *structs.Evaluation) {
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// delete the job index if this eval is the currently listed blocked eval
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jobID := structs.NewNamespacedID(eval.JobID, eval.Namespace)
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e, ok := s.byJob[jobID][eval.NodeID]
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if ok && e == eval.ID {
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delete(s.byJob[jobID], eval.NodeID)
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}
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// delete this eval from the node index, and then the map for this node if empty
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delete(s.byNode[eval.NodeID], eval.ID)
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if len(s.byNode[eval.NodeID]) == 0 {
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delete(s.byNode, eval.NodeID)
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}
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// delete the eval itself
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delete(s.evals, eval.ID)
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}
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func (s *systemEvals) NodeEvals(nodeID string) (map[*structs.Evaluation]string, bool) {
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out := map[*structs.Evaluation]string{}
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for eID := range s.byNode[nodeID] {
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if w, ok := s.Get(eID); ok {
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out[w.eval] = w.token
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}
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}
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ok := len(out) > 0
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return out, ok
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}
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func (s *systemEvals) JobEvals(jobID structs.NamespacedID) ([]*structs.Evaluation, bool) {
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out := []*structs.Evaluation{}
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_, ok := s.byJob[jobID]
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for _, eID := range s.byJob[jobID] {
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if e, ok := s.Get(eID); ok {
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out = append(out, e.eval)
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}
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}
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return out, ok
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}
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