mirror of
https://gitee.com/milvus-io/milvus.git
synced 2024-12-03 04:19:18 +08:00
75 lines
2.0 KiB
Go
75 lines
2.0 KiB
Go
// Copyright (C) 2019-2020 Zilliz. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software distributed under the License
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// is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
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// or implied. See the License for the specific language governing permissions and limitations under the License.
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package proxy
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import (
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"context"
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"fmt"
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"time"
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"github.com/milvus-io/milvus/internal/proto/commonpb"
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"github.com/milvus-io/milvus/internal/proto/rootcoordpb"
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)
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type TimestampAllocator struct {
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ctx context.Context
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tso timestampAllocatorInterface
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peerID UniqueID
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}
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func NewTimestampAllocator(ctx context.Context, tso timestampAllocatorInterface, peerID UniqueID) (*TimestampAllocator, error) {
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a := &TimestampAllocator{
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ctx: ctx,
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peerID: peerID,
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tso: tso,
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}
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return a, nil
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}
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func (ta *TimestampAllocator) Alloc(count uint32) ([]Timestamp, error) {
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ctx, cancel := context.WithTimeout(ta.ctx, 5*time.Second)
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req := &rootcoordpb.AllocTimestampRequest{
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Base: &commonpb.MsgBase{
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MsgType: commonpb.MsgType_RequestTSO,
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MsgID: 0,
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Timestamp: 0,
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SourceID: ta.peerID,
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},
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Count: count,
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}
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resp, err := ta.tso.AllocTimestamp(ctx, req)
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defer cancel()
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if err != nil {
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return nil, fmt.Errorf("syncTimestamp Failed:%w", err)
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}
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if resp.Status.ErrorCode != commonpb.ErrorCode_Success {
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return nil, fmt.Errorf("syncTimeStamp Failed:%s", resp.Status.Reason)
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}
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start, cnt := resp.Timestamp, resp.Count
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var ret []Timestamp
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for i := uint32(0); i < cnt; i++ {
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ret = append(ret, start+uint64(i))
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}
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return ret, nil
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}
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func (ta *TimestampAllocator) AllocOne() (Timestamp, error) {
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ret, err := ta.Alloc(1)
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if err != nil {
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return 0, err
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}
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return ret[0], nil
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}
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