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chainmgmt.go
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chainmgmt.go
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package xuperos
import (
"errors"
"fmt"
"sync"
"github.com/superconsensus/matrixcore/kernel/engines/xuperos/common"
"github.com/superconsensus/matrixcore/lib/logs"
)
// ChainMgmtImpl 用于管理链操作
type ChainManagerImpl struct {
// 链实例
chains sync.Map
engCtx *common.EngineCtx
log logs.Logger
}
func (m *ChainManagerImpl) Get(chainName string) (common.Chain, error) {
c, ok := m.chains.Load(chainName)
if !ok {
return nil, errors.New("target chainName doesn't exist")
}
if _, ok := c.(*Chain); !ok {
return nil, errors.New("transfer to Chain pointer error")
}
chainPtr := c.(*Chain)
return chainPtr, nil
}
func (m *ChainManagerImpl) Put(chainName string, chain common.Chain) {
m.chains.Store(chainName, chain)
}
func (m *ChainManagerImpl) Stop(chainName string) error {
c, err := m.Get(chainName)
if err != nil {
return err
}
m.chains.Delete(chainName)
c.Stop()
return nil
}
func (m *ChainManagerImpl) GetChains() []string {
var chains []string
m.chains.Range(func(key, value interface{}) bool {
cname, ok := key.(string)
if !ok {
return false
}
chains = append(chains, cname)
return true
})
return chains
}
func (m *ChainManagerImpl) StartChains() {
var wg sync.WaitGroup
m.chains.Range(func(k, v interface{}) bool {
chainHD, ok := v.(common.Chain)
if !ok {
m.log.Error("chain " + k.(string) + " transfer error")
}
m.log.Trace("start chain " + k.(string))
wg.Add(1)
go func() {
defer wg.Done()
m.log.Trace("run chain " + k.(string))
// 启动链
chainHD.Start()
m.log.Trace("chain " + k.(string) + " exit")
}()
return true
})
wg.Wait()
}
func (m *ChainManagerImpl) StopChains() {
m.chains.Range(func(k, v interface{}) bool {
chainHD := v.(common.Chain)
m.log.Trace("stop chain " + k.(string))
// 关闭链
chainHD.Stop()
m.log.Trace("chain " + k.(string) + " closed")
return true
})
}
func (m *ChainManagerImpl) LoadChain(chainName string) error {
chain, err := LoadChain(m.engCtx, chainName)
if err != nil {
m.engCtx.XLog.Error("load chain failed", "error", err, "chain_name", chainName)
return fmt.Errorf("load chain failed")
}
m.Put(chainName, chain)
go chain.Start()
return nil
}