83 lines
2.9 KiB
Go
83 lines
2.9 KiB
Go
package main
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import (
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"context"
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"encoding/json"
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orbit "git.yuntuo.hk/k2safe/orbit/sdk/go"
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"sync"
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)
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// invocation 固定首次调用的任务/尝试身份，重复调用不得覆盖首条证据。
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type invocation struct {
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index int // index 输入中的计划序号。
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attemptID string // attemptID 首次调用的尝试。
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calls int // calls 同一任务的调用次数。
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}
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// invocationLog 最多保存预期任务数个身份，异常输入不能无限增长内存。
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type invocationLog struct {
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mu sync.Mutex // mu 保护多个Worker并发回调。
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limit int // limit 可存任务身份上限。
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calls map[string]*invocation // calls 以任务身份记录真实调用。
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invalid int // invalid 无法核验的输入次数。
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overflow int // overflow 超出身份预算的调用次数。
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}
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func newInvocationLog(n int) *invocationLog {
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return &invocationLog{limit: n, calls: map[string]*invocation{}}
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}
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func (l *invocationLog) handler(run context.Context, c config, runID string) orbit.WorkerHandler {
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return orbit.WorkerHandler{Capability: orbit.WorkerCapability{Handler: handlerName(runID), HandlerVersion: "v1", PayloadVersion: "v1"}, Handle: func(ctx context.Context, e orbit.WorkerExecution) (json.RawMessage, error) {
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payload, ok := decodePayload(e.Task.Payload)
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if !ok || payload.Schedule < 0 || payload.Schedule >= c.Schedules || !matchesTask(e.Task, c, runID, payload.Schedule) || !validID(e.AttemptID) || e.Epoch != 1 || e.ConcurrencyToken != 0 {
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l.mu.Lock()
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l.invalid++
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l.mu.Unlock()
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return nil, &orbit.WorkerFailure{Code: "SCHEDULE_INPUT_MISMATCH"}
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}
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l.mu.Lock()
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existing := l.calls[e.Task.ID]
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if existing != nil {
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existing.calls++
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l.mu.Unlock()
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return nil, &orbit.WorkerFailure{Code: "DUPLICATE_INVOCATION"}
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}
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if len(l.calls) >= l.limit {
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l.overflow++
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l.mu.Unlock()
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return nil, &orbit.WorkerFailure{Code: "INVOCATION_LIMIT"}
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}
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l.calls[e.Task.ID] = &invocation{index: payload.Schedule, attemptID: e.AttemptID, calls: 1}
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l.mu.Unlock()
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select {
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case <-ctx.Done():
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return nil, ctx.Err()
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case <-run.Done():
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return nil, run.Err()
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default:
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}
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return e.Task.Payload, nil
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}}
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}
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func (l *invocationLog) summarize(r *scheduleReport, o *observations) {
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l.mu.Lock()
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defer l.mu.Unlock()
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r.Errors["INVALID_HANDLER_INPUT"] += l.invalid
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r.Errors["HANDLER_IDENTITY_LIMIT"] += l.overflow
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for taskID, call := range l.calls {
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r.HandlerCalls += call.calls
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if call.calls > 1 {
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r.DuplicateInvocations += call.calls - 1
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}
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s := o.tasks[taskID]
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if s == nil || !s.verified || s.attemptID != call.attemptID || o.plans[s.occurrence.ScheduleID].index != call.index {
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r.UnconfirmedInvocations += call.calls
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}
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}
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for taskID, s := range o.tasks {
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if s.verified && l.calls[taskID] == nil {
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r.Errors["MISSING_LOCAL_INVOCATION"]++
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}
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}
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}
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