add chain sync interval

chain/sync.go

@@ -161,9 +161,14 @@ func (s *ChainSync) loop() {
 				"end height":    endHeight,
 				"latest height": latestHeight,
 				"diff height":   latestHeight - endHeight,
-			}).Info("backend block")
+			}).Debug("backend block")
 
 			beginHeight = endHeight + 1
+			if s.syncmode {
+				tm.Reset(time.Second)
+			} else {
+				tm.Reset(time.Duration(s.chain.Interval) * time.Second)
+			}
 		}
 	}
 }

config/config.go

@@ -19,6 +19,7 @@ type ChainConfig struct {
 	BatchBlock     int    `toml:"batch_block"`
 	BehindBlock    int    `toml:"behind_block"`
 	BridgeContract string `toml:"bridge_contract"`
+	Interval       int    `toml:"interval"` // in seconds
 	ChainId        int64  `toml:"chain_id"` // Will be populated by code
 }
 
@@ -71,6 +72,9 @@ func New(confPath string) (*Config, error) {
 	// Convert to map for easier access
 	for _, chain := range chainArray {
 		chainCopy := chain // Create a copy to avoid pointer issues
+		if chainCopy.Interval <= 0 {
+			chainCopy.Interval = 2
+		}
 		cfg.Chains[chain.Name] = &chainCopy
 	}