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44 lines
833 B
Go
44 lines
833 B
Go
2 years ago
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package mgr_user
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import "math/rand"
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const period = 1000000 //7位
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const array = 100
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func NewRIDCreator(lsid int32) *RIDCreator {
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creator := &RIDCreator{sids: make(map[int32]int64, 1024)}
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for rid := int64(lsid * period); rid < int64(lsid*period*10); rid++ {
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idx := rid % array
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if creator.ids[idx] == nil {
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creator.ids[idx] = make(map[int64]bool)
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}
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creator.ids[idx][rid] = true
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}
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return creator
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}
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type RIDCreator struct {
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ids [array]map[int64]bool
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sids map[int32]int64
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}
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func (this *RIDCreator) Add(rid int64) {
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idx := rid % array
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if this.ids[idx] != nil {
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delete(this.ids[idx], rid)
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}
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}
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func (this *RIDCreator) ID(sid int32) int64 {
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for {
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idx := rand.Intn(array)
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for rid := range this.ids[idx] {
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if this.sids[sid]%10 == rid%10 {
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this.sids[sid]++
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this.Add(rid)
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return rid
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}
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}
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}
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}
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