mirror of
https://gitee.com/milvus-io/milvus.git
synced 2024-12-01 19:39:21 +08:00
78 lines
2.3 KiB
Go
78 lines
2.3 KiB
Go
// Copyright (C) 2019-2020 Zilliz. All rights reserved.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance
|
|
// with the License. You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software distributed under the License
|
|
// is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
|
|
// or implied. See the License for the specific language governing permissions and limitations under the License.
|
|
|
|
package datacoord
|
|
|
|
import (
|
|
"context"
|
|
|
|
"github.com/milvus-io/milvus/internal/types"
|
|
|
|
"github.com/milvus-io/milvus/internal/proto/commonpb"
|
|
"github.com/milvus-io/milvus/internal/proto/rootcoordpb"
|
|
)
|
|
|
|
// allocator is the interface for allocating `UniqueID` or `Timestamp`
|
|
type allocator interface {
|
|
allocTimestamp(context.Context) (Timestamp, error)
|
|
allocID(context.Context) (UniqueID, error)
|
|
}
|
|
|
|
var _ allocator = (*rootCoordAllocator)(nil)
|
|
|
|
// rootCoordAllocator use RootCoord as allocator
|
|
type rootCoordAllocator struct {
|
|
types.RootCoord
|
|
}
|
|
|
|
// newRootCoordAllocator get an allocator from RootCoord
|
|
func newRootCoordAllocator(rootCoordClient types.RootCoord) allocator {
|
|
return &rootCoordAllocator{
|
|
RootCoord: rootCoordClient,
|
|
}
|
|
}
|
|
|
|
// allocTimestamp allocate a Timestamp
|
|
// invoking RootCoord `AllocTimestamp`
|
|
func (alloc *rootCoordAllocator) allocTimestamp(ctx context.Context) (Timestamp, error) {
|
|
resp, err := alloc.AllocTimestamp(ctx, &rootcoordpb.AllocTimestampRequest{
|
|
Base: &commonpb.MsgBase{
|
|
MsgType: commonpb.MsgType_RequestTSO,
|
|
MsgID: 0,
|
|
Timestamp: 0,
|
|
SourceID: Params.NodeID,
|
|
},
|
|
Count: 1,
|
|
})
|
|
if err = VerifyResponse(resp, err); err != nil {
|
|
return 0, err
|
|
}
|
|
return resp.Timestamp, nil
|
|
}
|
|
|
|
// allocID allocate an `UniqueID` from RootCoord, invoking AllocID grpc
|
|
func (alloc *rootCoordAllocator) allocID(ctx context.Context) (UniqueID, error) {
|
|
resp, err := alloc.AllocID(ctx, &rootcoordpb.AllocIDRequest{
|
|
Base: &commonpb.MsgBase{
|
|
MsgType: commonpb.MsgType_RequestID,
|
|
MsgID: 0,
|
|
Timestamp: 0,
|
|
SourceID: Params.NodeID,
|
|
},
|
|
Count: 1,
|
|
})
|
|
if err = VerifyResponse(resp, err); err != nil {
|
|
return 0, err
|
|
}
|
|
|
|
return resp.ID, nil
|
|
}
|