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authorDeterminant <[email protected]>2020-09-20 16:53:47 -0400
committerDeterminant <[email protected]>2020-09-20 16:53:47 -0400
commite86ccf90bd33de6dc8694eb914b7b541aca53db6 (patch)
tree39a14ff66c42f95b805ce6fcf040c305460f5fce /eth/gasprice/gasprice.go
parent30fae395d465eb79ee8bc122d67a58cea3ccfcf2 (diff)
parente233062dfde3ac938b937c860bc96caf57a7fe3f (diff)
Merge remote-tracking branch 'origin/master' into masterv0.3.3-rc.3
Diffstat (limited to 'eth/gasprice/gasprice.go')
-rw-r--r--eth/gasprice/gasprice.go72
1 files changed, 1 insertions, 71 deletions
diff --git a/eth/gasprice/gasprice.go b/eth/gasprice/gasprice.go
index 14f50b1..14476ab 100644
--- a/eth/gasprice/gasprice.go
+++ b/eth/gasprice/gasprice.go
@@ -95,77 +95,7 @@ func NewOracle(backend OracleBackend, params Config) *Oracle {
// SuggestPrice returns a gasprice so that newly created transaction can
// have a very high chance to be included in the following blocks.
func (gpo *Oracle) SuggestPrice(ctx context.Context) (*big.Int, error) {
- head, _ := gpo.backend.HeaderByNumber(ctx, rpc.LatestBlockNumber)
- headHash := head.Hash()
-
- // If the latest gasprice is still available, return it.
- gpo.cacheLock.RLock()
- lastHead, lastPrice := gpo.lastHead, gpo.lastPrice
- gpo.cacheLock.RUnlock()
- if headHash == lastHead {
- return lastPrice, nil
- }
- gpo.fetchLock.Lock()
- defer gpo.fetchLock.Unlock()
-
- // Try checking the cache again, maybe the last fetch fetched what we need
- gpo.cacheLock.RLock()
- lastHead, lastPrice = gpo.lastHead, gpo.lastPrice
- gpo.cacheLock.RUnlock()
- if headHash == lastHead {
- return lastPrice, nil
- }
- var (
- sent, exp int
- number = head.Number.Uint64()
- result = make(chan getBlockPricesResult, gpo.checkBlocks)
- quit = make(chan struct{})
- txPrices []*big.Int
- )
- for sent < gpo.checkBlocks && number > 0 {
- go gpo.getBlockPrices(ctx, types.MakeSigner(gpo.backend.ChainConfig(), big.NewInt(int64(number))), number, sampleNumber, result, quit)
- sent++
- exp++
- number--
- }
- for exp > 0 {
- res := <-result
- if res.err != nil {
- close(quit)
- return lastPrice, res.err
- }
- exp--
- // Nothing returned. There are two special cases here:
- // - The block is empty
- // - All the transactions included are sent by the miner itself.
- // In these cases, use the latest calculated price for samping.
- if len(res.prices) == 0 {
- res.prices = []*big.Int{lastPrice}
- }
- // Besides, in order to collect enough data for sampling, if nothing
- // meaningful returned, try to query more blocks. But the maximum
- // is 2*checkBlocks.
- if len(res.prices) == 1 && len(txPrices)+1+exp < gpo.checkBlocks*2 && number > 0 {
- go gpo.getBlockPrices(ctx, types.MakeSigner(gpo.backend.ChainConfig(), big.NewInt(int64(number))), number, sampleNumber, result, quit)
- sent++
- exp++
- number--
- }
- txPrices = append(txPrices, res.prices...)
- }
- price := lastPrice
- if len(txPrices) > 0 {
- sort.Sort(bigIntArray(txPrices))
- price = txPrices[(len(txPrices)-1)*gpo.percentile/100]
- }
- if price.Cmp(gpo.maxPrice) > 0 {
- price = new(big.Int).Set(gpo.maxPrice)
- }
- gpo.cacheLock.Lock()
- gpo.lastHead = headHash
- gpo.lastPrice = price
- gpo.cacheLock.Unlock()
- return price, nil
+ return params.MinGasPrice, nil
}
type getBlockPricesResult struct {