65 lines
1.5 KiB
Go
65 lines
1.5 KiB
Go
package sync
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import (
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"fmt"
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"time"
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"github.com/unistack-org/micro/v3/store"
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)
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func (c *syncStore) syncManager() {
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tickerAggregator := make(chan struct{ index int })
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for i, ticker := range c.pendingWriteTickers {
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go func(index int, c chan struct{ index int }, t *time.Ticker) {
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for range t.C {
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c <- struct{ index int }{index: index}
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}
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}(i, tickerAggregator, ticker)
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}
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for i := range tickerAggregator {
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println(i.index, "ticked")
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c.processQueue(i.index)
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}
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}
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func (c *syncStore) processQueue(index int) {
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c.Lock()
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defer c.Unlock()
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q := c.pendingWrites[index]
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for i := 0; i < q.Len(); i++ {
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r, ok := q.PopFront()
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if !ok {
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panic(fmt.Errorf("retrieved an invalid value from the L%d sync queue", index+1))
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}
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ir, ok := r.(*internalRecord)
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if !ok {
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panic(fmt.Errorf("retrieved a non-internal record from the L%d sync queue", index+1))
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}
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if !ir.expiresAt.IsZero() && time.Now().After(ir.expiresAt) {
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continue
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}
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var opts []store.WriteOption
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if !ir.expiresAt.IsZero() {
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opts = append(opts, store.WriteTTL(ir.expiresAt.Sub(time.Now())))
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}
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// Todo = internal queue also has to hold the corresponding store.WriteOptions
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if err := c.syncOpts.Stores[index+1].Write(c.storeOpts.Context, ir.key, ir.value, opts...); err != nil {
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// some error, so queue for retry and bail
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q.PushBack(ir)
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return
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}
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}
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}
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func intpow(x, y int64) int64 {
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result := int64(1)
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for 0 != y {
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if 0 != (y & 1) {
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result *= x
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}
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y >>= 1
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x *= x
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}
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return result
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}
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