use fixed gas price since bsc network is idle

bnb-chain · Nov 16, 2020 · 7371524 · 7371524
1 parent bfb73f8
commit 7371524
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Showing 2 changed files with 21 additions and 12 deletions.
diff --git a/eth/config.go b/eth/config.go
@@ -61,8 +61,9 @@ var DefaultConfig = Config{
  },
  TxPool: core.DefaultTxPoolConfig,
  GPO: gasprice.Config{
- Blocks: 20,
- Percentile: 60,
+ Blocks: 20,
+ Percentile: 60,
+ OracleThreshold: 1000,
  },
 }
 

diff --git a/eth/gasprice/gasprice.go b/eth/gasprice/gasprice.go
@@ -32,9 +32,10 @@ import (
 var maxPrice = big.NewInt(500 * params.GWei)
 
 type Config struct {
- Blocks int
- Percentile int
- Default *big.Int `toml:",omitempty"`
+ Blocks int
+ Percentile int
+ Default *big.Int `toml:",omitempty"`
+ OracleThreshold int `toml:",omitempty"`
 }
 
 // Oracle recommends gas prices based on the content of recent
@@ -46,6 +47,9 @@ type Oracle struct {
  cacheLock sync.RWMutex
  fetchLock sync.Mutex
 
+ defaultPrice *big.Int
+ sampleThreshold int
+
  checkBlocks, maxEmpty, maxBlocks int
  percentile int
 }
@@ -64,12 +68,14 @@ func NewOracle(backend ethapi.Backend, params Config) *Oracle {
  percent = 100
  }
  return &Oracle{
- backend: backend,
- lastPrice: params.Default,
- checkBlocks: blocks,
- maxEmpty: blocks / 2,
- maxBlocks: blocks * 5,
- percentile: percent,
+ backend: backend,
+ lastPrice: params.Default,
+ defaultPrice: params.Default,
+ checkBlocks: blocks,
+ maxEmpty: blocks / 2,
+ maxBlocks: blocks * 5,
+ percentile: percent,
+ sampleThreshold: params.OracleThreshold,
  }
 }
 
@@ -132,9 +138,11 @@ func (gpo *Oracle) SuggestPrice(ctx context.Context) (*big.Int, error) {
  }
  }
  price := lastPrice
- if len(blockPrices) > 0 {
+ if len(blockPrices) > gpo.sampleThreshold {
  sort.Sort(bigIntArray(blockPrices))
  price = blockPrices[(len(blockPrices)-1)*gpo.percentile/100]
+ } else {
+ price = gpo.defaultPrice
  }
  if price.Cmp(maxPrice) > 0 {
  price = new(big.Int).Set(maxPrice)