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reloadconfig.go
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reloadconfig.go
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package bridge
import (
"math/big"
"os"
"os/signal"
"sync"
"syscall"
"time"
"github.com/deltaswapio/swaprouter/v3/log"
"github.com/deltaswapio/swaprouter/v3/params"
"github.com/deltaswapio/swaprouter/v3/router"
"github.com/deltaswapio/swaprouter/v3/tokens"
)
var reloadRouterConfigLock sync.Mutex
// StartReloadRouterConfigTask start reload config
func StartReloadRouterConfigTask() {
// method 1: use web socket event subscriber
go router.SubscribeUpdateConfig(ReloadRouterConfig)
// method 2: use fix period timer
go doReloadRouterConfigPeriodly()
// method 3: trigger manually by signals
go doReloadRouterConfigManually()
}
func doReloadRouterConfigPeriodly() {
reloadCycle := params.GetRouterConfig().Onchain.ReloadCycle
if reloadCycle == 0 {
return
}
log.Info("start reload router config task periodly", "reloadCycle", reloadCycle)
reloadInterval := time.Duration(reloadCycle) * time.Second
reloadTimer := time.NewTimer(reloadInterval)
for {
<-reloadTimer.C
reloadTimer.Reset(reloadInterval)
for i := 0; i < 3; i++ {
success := ReloadRouterConfig()
if success {
break
}
}
}
}
func doReloadRouterConfigManually() {
signalChan := make(chan os.Signal, 1)
signal.Notify(signalChan, syscall.SIGUSR1)
for {
sig := <-signalChan
if router.IsReloading {
log.Info("ignore signal to reload router config in reloading", "signal", sig)
continue
}
log.Info("receive signal to reload router config", "signal", sig)
go ReloadRouterConfig()
}
}
// ReloadRouterConfig reload router config
// support add/remove/modify chain config
// support add/remove/modify token config
//
//nolint:funlen,gocyclo // ok
func ReloadRouterConfig() (success bool) {
log.Info("[reload] start reload router config")
reloadRouterConfigLock.Lock()
router.IsIniting = true
router.IsReloading = true
defer func() {
router.IsIniting = false
router.IsReloading = false
routerInfoIsLoaded = new(sync.Map)
log.Info("[reload] reload router config finished", "success", success)
reloadRouterConfigLock.Unlock()
}()
// reload local config
params.ReloadRouterConfig()
allChainIDs, err := router.GetAllChainIDs()
if err != nil {
log.Error("[reload] call GetAllChainIDs failed", "err", err)
return false
}
// get rid of blacked chainIDs
chainIDs := make([]*big.Int, 0, len(allChainIDs))
for _, chainID := range allChainIDs {
if params.IsChainIDInBlackList(chainID.String()) {
log.Debugf("[reload] ingore chainID %v in black list", chainID)
continue
}
chainIDs = append(chainIDs, chainID)
}
log.Info("[reload] get all chain ids success", "chainIDs", chainIDs)
if len(chainIDs) == 0 {
log.Error("[reload] empty chain IDs")
}
allTokenIDs, err := router.GetAllTokenIDs()
if err != nil {
log.Error("[reload] call GetAllTokenIDs failed", "err", err)
return false
}
// get rid of blacked tokenIDs
tokenIDs := make([]string, 0, len(allTokenIDs))
for _, tokenID := range allTokenIDs {
if params.IsTokenIDInBlackList(tokenID) {
log.Debugf("[reload] ingore tokenID %v in black list", tokenID)
continue
}
tokenIDs = append(tokenIDs, tokenID)
}
log.Info("[reload] get all token ids success", "tokenIDs", tokenIDs)
if len(tokenIDs) == 0 && !tokens.IsAnyCallRouter() {
log.Error("[reload] empty token IDs")
}
wg := new(sync.WaitGroup)
wg.Add(len(chainIDs))
for _, chainID := range chainIDs {
go func(wg *sync.WaitGroup, chainID *big.Int) {
defer wg.Done()
isNewBridge := false
bridge := router.GetBridgeByChainID(chainID.String())
if bridge == nil {
log.Info("[reload] add new bridge", "chainID", chainID)
bridge = NewCrossChainBridge(chainID)
isNewBridge = true
}
log.Info("[reload] set chain config", "chainID", chainID)
InitGatewayConfig(bridge, chainID)
AdjustGatewayOrder(bridge, chainID.String())
InitChainConfig(bridge, chainID)
if isNewBridge {
bridge.InitAfterConfig()
router.SetBridge(chainID.String(), bridge)
}
wg2 := new(sync.WaitGroup)
wg2.Add(len(tokenIDs))
for _, tokenID := range tokenIDs {
go func(wg2 *sync.WaitGroup, tokenID string, chainID *big.Int) {
defer wg2.Done()
log.Info("[reload] start load token config", "tokenID", tokenID, "chainID", chainID)
InitTokenConfig(bridge, tokenID, chainID)
}(wg2, tokenID, chainID)
}
wg2.Wait()
}(wg, chainID)
}
wg.Wait()
oldChainIDs := router.AllChainIDs
router.AllChainIDs = chainIDs
oldTokenIDs := router.AllTokenIDs
router.AllTokenIDs = tokenIDs
loadSwapAndFeeConfigs()
removedChainIDs := make([]string, 0)
for _, chainID := range oldChainIDs {
exist := false
for _, newChainID := range chainIDs {
if chainID.Cmp(newChainID) == 0 {
exist = true
break
}
}
if !exist {
removedChainIDs = append(removedChainIDs, chainID.String())
}
}
if len(removedChainIDs) > 0 {
log.Info("[reload] remove chain ids", "removedChainIDs", removedChainIDs)
}
removedTokenIDs := make([]string, 0)
for _, tokenID := range oldTokenIDs {
exist := false
for _, newTokenID := range tokenIDs {
if tokenID == newTokenID {
exist = true
break
}
}
if !exist {
removedTokenIDs = append(removedTokenIDs, tokenID)
}
}
if len(removedTokenIDs) > 0 {
log.Info("[reload] remove token ids", "removedTokenIDs", removedTokenIDs)
}
// get rid of removed token configs
for _, chainID := range oldChainIDs {
bridge := router.GetBridgeByChainID(chainID.String())
if bridge == nil {
continue
}
for _, tokenID := range removedTokenIDs {
tokenAddr := router.GetCachedMultichainToken(tokenID, chainID.String())
if tokenAddr == "" {
continue
}
log.Info("[reload] remove token config", "tokenID", tokenID, "chainID", chainID, "tokenAddr", tokenAddr)
bridge.SetTokenConfig(tokenAddr, nil)
}
}
// get rid of removed tokenIDs
for _, tokenID := range removedTokenIDs {
router.SetMultichainTokens(tokenID, nil)
}
// get rid of removed chainIDs
for _, chainID := range removedChainIDs {
router.SetBridge(chainID, nil)
}
success = true
return success
}