MiFaZhan
71 lines
2.2 KiB
Go
71 lines
2.2 KiB
Go
package zset
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import (
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"context"
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"github.com/gogf/gf/v2/errors/gerror"
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)
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// ProducerState is a small internal read view, not a new Run wire format.
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// ActiveCount includes inflight; never add InflightCount to capacity usage.
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type ProducerState struct {
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Status string
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ProducerDone bool
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CurrentRound int
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ActiveCount int64
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Blocked bool
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}
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func (s *Store) ReadProducerState(ctx context.Context, runID, chanKey string) (ProducerState, error) {
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key, err := s.RunMetaKey(runID)
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if err != nil {
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return ProducerState{}, err
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}
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result, err := s.redis.Do(ctx, "HMGET", key, "runId", "status", "producerDone", "currentRound", "activeCount", "blocked:"+chanKey)
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if err != nil {
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return ProducerState{}, gerror.Wrap(err, "read producer state")
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}
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values := result.Strings()
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if len(values) != 6 || values[0] == "" {
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return ProducerState{}, gerror.Wrapf(ErrRunNotFound, "run %q", runID)
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}
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state := ProducerState{Status: values[1], ProducerDone: parseBool(values[2]), CurrentRound: parseInt(values[3]), ActiveCount: parseInt64(values[4]), Blocked: parseBool(values[5])}
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if state.CurrentRound <= 0 || state.ActiveCount < 0 {
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return ProducerState{}, gerror.New("invalid producer run counters")
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}
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return state, nil
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}
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// ExistingRunTasks uses one bounded HMGET for a producer page. All task states
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// (queued, leased, waiting, success and failed) count as already admitted.
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func (s *Store) ExistingRunTasks(ctx context.Context, runID string, tasks []Task) ([]bool, error) {
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if len(tasks) == 0 {
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return nil, nil
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}
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key, err := s.TaskStateKey(runID)
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if err != nil {
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return nil, err
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}
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args := make([]any, 1, len(tasks)+1)
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args[0] = key
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for _, task := range tasks {
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if task.TaskID == "" || task.RunID != runID {
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return nil, gerror.New("invalid task identity in producer state read")
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}
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args = append(args, task.TaskID)
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}
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result, err := s.redis.Do(ctx, "HMGET", args...)
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if err != nil {
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return nil, gerror.Wrap(err, "read existing run tasks")
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}
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values := result.Strings()
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if len(values) != len(tasks) {
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return nil, gerror.New("incomplete HMGET task state response")
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}
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exists := make([]bool, len(tasks))
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for i, value := range values {
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exists[i] = value != ""
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}
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return exists, nil
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}
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