/
pd.go
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/
pd.go
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// Copyright 2016 PingCAP, Inc.
//
// 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,
// See the License for the specific language governing permissions and
// limitations under the License.
package mocktikv
import (
"context"
"sync"
"time"
"github.com/pingcap/kvproto/pkg/metapb"
"github.com/pingcap/kvproto/pkg/pdpb"
"github.com/pkg/errors"
pd "github.com/tikv/pd/client"
)
// Use global variables to prevent pdClients from creating duplicate timestamps.
var tsMu = struct {
sync.Mutex
physicalTS int64
logicalTS int64
}{}
type pdClient struct {
cluster *Cluster
}
// NewPDClient creates a mock pd.Client that uses local timestamp and meta data
// from a Cluster.
func NewPDClient(cluster *Cluster) pd.Client {
return &pdClient{
cluster: cluster,
}
}
func (c *pdClient) GetClusterID(ctx context.Context) uint64 {
return 1
}
func (c *pdClient) GetAllMembers(ctx context.Context) ([]*pdpb.Member, error) {
panic("unimplemented")
}
func (c *pdClient) GetLeaderAddr() string {
panic("unimplemented")
}
func (c *pdClient) GetTS(context.Context) (int64, int64, error) {
tsMu.Lock()
defer tsMu.Unlock()
ts := time.Now().UnixNano() / int64(time.Millisecond)
if tsMu.physicalTS >= ts {
tsMu.logicalTS++
} else {
tsMu.physicalTS = ts
tsMu.logicalTS = 0
}
return tsMu.physicalTS, tsMu.logicalTS, nil
}
func (c *pdClient) GetTSAsync(ctx context.Context) pd.TSFuture {
return &mockTSFuture{c, ctx}
}
func (c *pdClient) GetLocalTS(ctx context.Context, dcLocation string) (int64, int64, error) {
return c.GetTS(ctx)
}
func (c *pdClient) GetLocalTSAsync(ctx context.Context, dcLocation string) pd.TSFuture {
return c.GetTSAsync(ctx)
}
func (c *pdClient) GetOperator(ctx context.Context, regionID uint64) (*pdpb.GetOperatorResponse, error) {
panic("unimplemented")
}
type mockTSFuture struct {
pdc *pdClient
ctx context.Context
}
func (m *mockTSFuture) Wait() (int64, int64, error) {
return m.pdc.GetTS(m.ctx)
}
func (c *pdClient) GetRegion(ctx context.Context, key []byte) (*pd.Region, error) {
region, peer := c.cluster.GetRegionByKey(key)
return &pd.Region{Meta: region, Leader: peer}, nil
}
func (c *pdClient) GetRegionFromMember(ctx context.Context, key []byte, memberURLs []string) (*pd.Region, error) {
panic("unimplemented")
}
func (c *pdClient) GetPrevRegion(ctx context.Context, key []byte) (*pd.Region, error) {
region, peer := c.cluster.GetPrevRegionByKey(key)
return &pd.Region{Meta: region, Leader: peer}, nil
}
func (c *pdClient) GetRegionByID(ctx context.Context, regionID uint64) (*pd.Region, error) {
region, peer := c.cluster.GetRegionByID(regionID)
return &pd.Region{Meta: region, Leader: peer}, nil
}
func (c *pdClient) ScanRegions(ctx context.Context, key, endKey []byte, limit int) ([]*pd.Region, error) {
panic("unimplemented")
}
func (c *pdClient) GetStore(ctx context.Context, storeID uint64) (*metapb.Store, error) {
select {
case <-ctx.Done():
return nil, ctx.Err()
default:
}
store := c.cluster.GetStore(storeID)
return store, nil
}
func (c *pdClient) GetAllStores(ctx context.Context, opts ...pd.GetStoreOption) ([]*metapb.Store, error) {
panic(errors.New("unimplemented"))
}
func (c *pdClient) UpdateGCSafePoint(ctx context.Context, safePoint uint64) (uint64, error) {
panic("unimplemented")
}
func (c *pdClient) UpdateServiceGCSafePoint(ctx context.Context, serviceID string, ttl int64, safePoint uint64) (uint64, error) {
panic("unimplemented")
}
func (c *pdClient) ScatterRegion(ctx context.Context, regionID uint64) error {
panic("unimplemented")
}
func (c *pdClient) ScatterRegionWithOption(ctx context.Context, regionID uint64, opts ...pd.RegionsOption) error {
panic("unimplemented")
}
func (c *pdClient) ScatterRegions(ctx context.Context, regionsID []uint64, opts ...pd.RegionsOption) (*pdpb.ScatterRegionResponse, error) {
panic("unimplemented")
}
func (c *pdClient) SplitRegions(ctx context.Context, splitKeys [][]byte, opts ...pd.RegionsOption) (*pdpb.SplitRegionsResponse, error) {
panic("unimplemented")
}
func (c *pdClient) Close() {
}