Files

83 lines
2.9 KiB
Go

package main
import (
"context"
"encoding/json"
orbit "git.yuntuo.hk/k2safe/orbit/sdk/go"
"sync"
)
// 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。
type invocation struct {
index int // index 输入中的计划序号。
attemptID string // attemptID 首次调用的尝试。
calls int // calls 同一任务的调用次数。
}
// 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。
type invocationLog struct {
mu sync.Mutex // mu 保护多个Worker并发回调。
limit int // limit 可存任务身份上限。
calls map[string]*invocation // calls 以任务身份记录真实调用。
invalid int // invalid 无法核验的输入次数。
overflow int // overflow 超出身份预算的调用次数。
}
func newInvocationLog(n int) *invocationLog {
return &invocationLog{limit: n, calls: map[string]*invocation{}}
}
func (l *invocationLog) handler(run context.Context, c config, runID string) orbit.WorkerHandler {
return orbit.WorkerHandler{Capability: orbit.WorkerCapability{Handler: handlerName(runID), HandlerVersion: "v1", PayloadVersion: "v1"}, Handle: func(ctx context.Context, e orbit.WorkerExecution) (json.RawMessage, error) {
payload, ok := decodePayload(e.Task.Payload)
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 {
l.mu.Lock()
l.invalid++
l.mu.Unlock()
return nil, &orbit.WorkerFailure{Code: "SCHEDULE_INPUT_MISMATCH"}
}
l.mu.Lock()
existing := l.calls[e.Task.ID]
if existing != nil {
existing.calls++
l.mu.Unlock()
return nil, &orbit.WorkerFailure{Code: "DUPLICATE_INVOCATION"}
}
if len(l.calls) >= l.limit {
l.overflow++
l.mu.Unlock()
return nil, &orbit.WorkerFailure{Code: "INVOCATION_LIMIT"}
}
l.calls[e.Task.ID] = &invocation{index: payload.Schedule, attemptID: e.AttemptID, calls: 1}
l.mu.Unlock()
select {
case <-ctx.Done():
return nil, ctx.Err()
case <-run.Done():
return nil, run.Err()
default:
}
return e.Task.Payload, nil
}}
}
func (l *invocationLog) summarize(r *scheduleReport, o *observations) {
l.mu.Lock()
defer l.mu.Unlock()
r.Errors["INVALID_HANDLER_INPUT"] += l.invalid
r.Errors["HANDLER_IDENTITY_LIMIT"] += l.overflow
for taskID, call := range l.calls {
r.HandlerCalls += call.calls
if call.calls > 1 {
r.DuplicateInvocations += call.calls - 1
}
s := o.tasks[taskID]
if s == nil || !s.verified || s.attemptID != call.attemptID || o.plans[s.occurrence.ScheduleID].index != call.index {
r.UnconfirmedInvocations += call.calls
}
}
for taskID, s := range o.tasks {
if s.verified && l.calls[taskID] == nil {
r.Errors["MISSING_LOCAL_INVOCATION"]++
}
}
}