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full.go
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full.go
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// Copyright (c) 2017-2018 The qitmeer developers
package node
import (
"fmt"
"path/filepath"
"reflect"
"time"
"github.com/Qitmeer/qng/common/system"
"github.com/Qitmeer/qng/common/system/disk"
"github.com/Qitmeer/qng/config"
"github.com/Qitmeer/qng/consensus/model"
"github.com/Qitmeer/qng/core/blockchain"
"github.com/Qitmeer/qng/core/coinbase"
"github.com/Qitmeer/qng/core/protocol"
"github.com/Qitmeer/qng/engine/txscript"
"github.com/Qitmeer/qng/meerevm/amana"
"github.com/Qitmeer/qng/meerevm/meer"
"github.com/Qitmeer/qng/node/service"
"github.com/Qitmeer/qng/p2p"
"github.com/Qitmeer/qng/params"
"github.com/Qitmeer/qng/rpc"
"github.com/Qitmeer/qng/rpc/api"
"github.com/Qitmeer/qng/services/acct"
"github.com/Qitmeer/qng/services/address"
"github.com/Qitmeer/qng/services/mempool"
"github.com/Qitmeer/qng/services/miner"
"github.com/Qitmeer/qng/services/mining"
"github.com/Qitmeer/qng/services/notifymgr"
"github.com/Qitmeer/qng/services/tx"
"github.com/Qitmeer/qng/services/wallet"
ecommon "github.com/ethereum/go-ethereum/common"
)
// QitmeerFull implements the qitmeer full node service.
type QitmeerFull struct {
service.Service
// under node
node *Node
// msg notifier
nfManager model.Notify
// database
db model.DataBase
// address service
addressApi *address.AddressApi
}
func (qm *QitmeerFull) APIs() []api.API {
apis := qm.Service.APIs()
apis = append(apis, qm.addressApi.APIs()...)
apis = append(apis, qm.apis()...)
return apis
}
func (qm *QitmeerFull) RegisterP2PService() error {
peerServer, err := p2p.NewService(qm.node.Config, qm.node.consensus, qm.node.Params)
if err != nil {
return err
}
return qm.Services().RegisterService(peerServer)
}
func (qm *QitmeerFull) RegisterRpcService() ([]api.API, error) {
if qm.node.Config.DisableRPC {
return nil, nil
}
rpcServer, err := rpc.NewRPCServer(qm.node.Config, qm.node.consensus)
if err != nil {
return nil, err
}
qm.Services().RegisterService(rpcServer)
go func() {
<-rpcServer.RequestedProcessShutdown()
system.ShutdownRequestChannel <- struct{}{}
}()
// Gather all the possible APIs to surface
apis := qm.APIs()
// Generate the whitelist based on the allowed modules
whitelist := make(map[string]bool)
for _, module := range qm.node.Config.Modules {
whitelist[module] = true
}
retApis := []api.API{}
// Register all the APIs exposed by the services
for _, api := range apis {
if whitelist[api.NameSpace] || (len(whitelist) == 0 && api.Public) {
if err := rpcServer.RegisterService(api.NameSpace, api.Service); err != nil {
return nil, err
}
log.Debug(fmt.Sprintf("RPC Service API registered. NameSpace:%s %s", api.NameSpace, reflect.TypeOf(api.Service)))
retApis = append(retApis, api)
}
}
return retApis, nil
}
func (qm *QitmeerFull) RegisterTxManagerService() error {
// txmanager
tm, err := tx.NewTxManager(qm.node.consensus, qm.nfManager)
if err != nil {
return err
}
qm.Services().RegisterService(tm)
return nil
}
func (qm *QitmeerFull) RegisterMinerService() error {
cfg := qm.node.Config
txManager := qm.GetTxManager()
// Cpu Miner
// Create the mining policy based on the configuration options.
// NOTE: The CPU miner relies on the mempool, so the mempool has to be
// created before calling the function to create the CPU miner.
policy := mining.Policy{
BlockMinSize: cfg.BlockMinSize,
BlockMaxSize: cfg.BlockMaxSize,
BlockPrioritySize: cfg.BlockPrioritySize,
TxMinFreeFee: cfg.MinTxFee, //TODO, duplicated config item with mem-pool
TxTimeScope: cfg.TxTimeScope,
StandardVerifyFlags: func() (txscript.ScriptFlags, error) {
return mempool.StandardScriptVerifyFlags()
}, //TODO, duplicated config item with mem-pool
CoinbaseGenerator: coinbase.NewCoinbaseGenerator(qm.node.Params, qm.GetPeerServer().PeerID().String()),
}
miner := miner.NewMiner(qm.node.consensus, &policy, txManager.MemPool().(*mempool.TxPool), qm.GetPeerServer())
qm.Services().RegisterService(miner)
return nil
}
func (qm *QitmeerFull) RegisterNotifyMgr() error {
nfManager := notifymgr.New(qm.GetPeerServer(), qm.node.consensus)
qm.Services().RegisterService(nfManager)
qm.nfManager = nfManager
return nil
}
func (qm *QitmeerFull) RegisterAccountService(cfg *config.Config) error {
// account manager
acctmgr, err := acct.New(qm.GetBlockChain(), cfg, qm.node.consensus.Events())
if err != nil {
return err
}
qm.GetBlockChain().Acct = acctmgr
qm.Services().RegisterService(acctmgr)
return nil
}
func (qm *QitmeerFull) RegisterWalletService(cfg *config.Config) error {
walletmgr, err := wallet.New(cfg, qm.node.consensus.BlockChain().MeerChain().(*meer.MeerChain),
qm.GetAccountManager(), qm.GetTxManager(), qm.node.consensus.Events())
if err != nil {
return err
}
qm.Services().RegisterService(walletmgr)
return nil
}
func (qm *QitmeerFull) RegisterAmana() error {
if !qm.node.Config.Amana ||
params.ActiveNetParams.Net == protocol.MainNet {
return nil
}
ser, err := amana.New(qm.node.Config, qm.node.consensus)
if err != nil {
return err
}
return qm.Services().RegisterService(ser)
}
// return address api
func (qm *QitmeerFull) GetAddressApi() *address.AddressApi {
return qm.addressApi
}
// return peer server
func (qm *QitmeerFull) GetPeerServer() *p2p.Service {
var service *p2p.Service
if err := qm.Services().FetchService(&service); err != nil {
log.Error(err.Error())
return nil
}
return service
}
func (qm *QitmeerFull) GetRpcServer() *rpc.RpcServer {
var service *rpc.RpcServer
if err := qm.Services().FetchService(&service); err != nil {
log.Warn(err.Error())
return nil
}
return service
}
func (qm *QitmeerFull) GetTxManager() *tx.TxManager {
var service *tx.TxManager
if err := qm.Services().FetchService(&service); err != nil {
log.Error(err.Error())
return nil
}
return service
}
func (qm *QitmeerFull) GetAccountManager() *acct.AccountManager {
var service *acct.AccountManager
if err := qm.Services().FetchService(&service); err != nil {
log.Error(err.Error())
return nil
}
return service
}
func (qm *QitmeerFull) GetWalletManager() *wallet.WalletManager {
var service *wallet.WalletManager
if err := qm.Services().FetchService(&service); err != nil {
log.Error(err.Error())
return nil
}
return service
}
func (qm *QitmeerFull) GetMiner() *miner.Miner {
var service *miner.Miner
if err := qm.Services().FetchService(&service); err != nil {
log.Error(err.Error())
return nil
}
return service
}
func (qm *QitmeerFull) GetBlockChain() *blockchain.BlockChain {
var service *blockchain.BlockChain
if err := qm.Services().FetchService(&service); err != nil {
log.Error(err.Error())
return nil
}
return service
}
func (qm *QitmeerFull) monitorFreeDiskSpace() error {
freeDiskSpaceCritical := qm.node.Config.Minfreedisk * 1024 * 1024
if freeDiskSpaceCritical == 0 {
return nil
}
path, err := filepath.Abs(qm.node.Config.DataDir)
if err != nil {
return err
}
if path == "" {
return fmt.Errorf("monitor disk path is empty")
}
go func() {
log.Info("Start monitor free disk space", "path", path, "critical", ecommon.StorageSize(freeDiskSpaceCritical))
for {
freeSpace, err := disk.GetFreeDiskSpace(path)
if err != nil {
log.Warn("Failed to get free disk space", "path", path, "err", err)
break
}
if freeSpace < freeDiskSpaceCritical {
log.Error("Low disk space. Gracefully shutting down QNG to prevent database corruption.", "available", ecommon.StorageSize(freeSpace), "path", path)
qm.node.consensus.Shutdown()
break
} else if freeSpace < 2*freeDiskSpaceCritical {
log.Warn("Disk space is running low. QNG will shutdown if disk space runs below critical level.", "available", ecommon.StorageSize(freeSpace), "critical_level", ecommon.StorageSize(freeDiskSpaceCritical), "path", path)
}
time.Sleep(30 * time.Second)
}
}()
return nil
}
func newQitmeerFullNode(node *Node) (*QitmeerFull, error) {
qm := QitmeerFull{
node: node,
db: node.DB,
}
qm.Service.InitServices()
cfg := node.Config
if err := node.consensus.Init(); err != nil {
return nil, err
}
bc := node.consensus.BlockChain().(*blockchain.BlockChain)
if err := qm.Services().RegisterService(bc); err != nil {
return nil, err
}
if err := qm.RegisterP2PService(); err != nil {
return nil, err
}
if err := qm.RegisterNotifyMgr(); err != nil {
return nil, err
}
if err := qm.RegisterTxManagerService(); err != nil {
return nil, err
}
txManager := qm.GetTxManager()
// prepare peerServer
qm.GetPeerServer().SetBlockChain(qm.GetBlockChain())
qm.GetPeerServer().SetTimeSource(qm.node.consensus.MedianTimeSource())
qm.GetPeerServer().SetTxMemPool(txManager.MemPool().(*mempool.TxPool))
qm.GetPeerServer().SetNotify(qm.nfManager)
//
bc.MeerChain().(*meer.MeerChain).MeerPool().SetTxPool(txManager.MemPool())
bc.MeerChain().(*meer.MeerChain).MeerPool().SetNotify(qm.nfManager)
//
if err := qm.RegisterMinerService(); err != nil {
return nil, err
}
// init address api
qm.addressApi = address.NewAddressApi(cfg, node.Params, qm.GetBlockChain())
if err := qm.RegisterAccountService(cfg); err != nil {
return nil, err
}
if qm.node.consensus.AmanaService() != nil {
if err := qm.Services().RegisterService(qm.node.consensus.AmanaService()); err != nil {
return nil, err
}
}
if err := qm.RegisterWalletService(cfg); err != nil {
return nil, err
}
apis, err := qm.RegisterRpcService()
if err != nil {
return nil, err
}
bc.MeerChain().RegisterAPIs(apis)
if qm.GetRpcServer() != nil {
qm.GetRpcServer().BC = qm.GetBlockChain()
qm.GetRpcServer().ChainParams = qm.node.Params
qm.nfManager.(*notifymgr.NotifyMgr).RpcServer = qm.GetRpcServer()
qm.GetMiner().RpcSer = qm.GetRpcServer()
}
qm.Services().LowestPriority(qm.GetBlockChain())
qm.Services().LowestPriority(qm.GetTxManager())
qm.Services().LowestPriority(qm.GetPeerServer())
return &qm, qm.monitorFreeDiskSpace()
}