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3563136c2a
issue: #33285 - optimize the message package - add interceptor package to achieve append operation intercepting. - add timetick interceptor to attach timetick properties for message. - add timetick background task to send timetick message. Signed-off-by: chyezh <chyezh@outlook.com>
88 lines
2.3 KiB
Go
88 lines
2.3 KiB
Go
package ack
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import (
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"go.uber.org/atomic"
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"github.com/milvus-io/milvus/pkg/streaming/util/message"
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"github.com/milvus-io/milvus/pkg/util/typeutil"
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)
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var _ typeutil.HeapInterface = (*timestampWithAckArray)(nil)
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// newAcker creates a new acker.
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func newAcker(ts uint64, lastConfirmedMessageID message.MessageID) *Acker {
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return &Acker{
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acknowledged: atomic.NewBool(false),
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detail: newAckDetail(ts, lastConfirmedMessageID),
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}
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}
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// Acker records the timestamp and last confirmed message id that has not been acknowledged.
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type Acker struct {
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acknowledged *atomic.Bool // is acknowledged.
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detail *AckDetail // info is available after acknowledged.
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}
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// LastConfirmedMessageID returns the last confirmed message id.
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func (ta *Acker) LastConfirmedMessageID() message.MessageID {
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return ta.detail.LastConfirmedMessageID
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}
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// Timestamp returns the timestamp.
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func (ta *Acker) Timestamp() uint64 {
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return ta.detail.Timestamp
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}
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// Ack marks the timestamp as acknowledged.
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func (ta *Acker) Ack(opts ...AckOption) {
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for _, opt := range opts {
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opt(ta.detail)
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}
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ta.acknowledged.Store(true)
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}
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// ackDetail returns the ack info, only can be called after acknowledged.
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func (ta *Acker) ackDetail() *AckDetail {
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if !ta.acknowledged.Load() {
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panic("unreachable: ackDetail can only be called after acknowledged")
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}
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return ta.detail
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}
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// timestampWithAckArray is a heap underlying represent of timestampAck.
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type timestampWithAckArray []*Acker
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// Len returns the length of the heap.
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func (h timestampWithAckArray) Len() int {
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return len(h)
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}
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// Less returns true if the element at index i is less than the element at index j.
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func (h timestampWithAckArray) Less(i, j int) bool {
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return h[i].detail.Timestamp < h[j].detail.Timestamp
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}
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// Swap swaps the elements at indexes i and j.
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func (h timestampWithAckArray) Swap(i, j int) { h[i], h[j] = h[j], h[i] }
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// Push pushes the last one at len.
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func (h *timestampWithAckArray) Push(x interface{}) {
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// Push and Pop use pointer receivers because they modify the slice's length,
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// not just its contents.
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*h = append(*h, x.(*Acker))
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}
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// Pop pop the last one at len.
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func (h *timestampWithAckArray) Pop() interface{} {
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old := *h
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n := len(old)
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x := old[n-1]
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*h = old[0 : n-1]
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return x
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}
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// Peek returns the element at the top of the heap.
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func (h *timestampWithAckArray) Peek() interface{} {
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return (*h)[0]
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}
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