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les, light: LES/2 protocol version (#14970)

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This PR implements the new LES protocol version extensions:

* new and more efficient Merkle proofs reply format (when replying to
  a multiple Merkle proofs request, we just send a single set of trie
  nodes containing all necessary nodes)
* BBT (BloomBitsTrie) works similarly to the existing CHT and contains
  the bloombits search data to speed up log searches
* GetTxStatusMsg returns the inclusion position or the
  pending/queued/unknown state of a transaction referenced by hash
* an optional signature of new block data (number/hash/td) can be
  included in AnnounceMsg to provide an option for "very light
  clients" (mobile/embedded devices) to skip expensive Ethash check
  and accept multiple signatures of somewhat trusted servers (still a
  lot better than trusting a single server completely and retrieving
  everything through RPC). The new client mode is not implemented in
  this PR, just the protocol extension.
This commit is contained in:
Felföldi Zsolt
2017-10-24 15:19:09 +02:00
committed by Felix Lange
parent 6d6a5a9337
commit ca376ead88
34 changed files with 2056 additions and 488 deletions
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10
core/tx_list.go
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@ -384,13 +384,13 @@ func (h *priceHeap) Pop() interface{} {
// txPricedList is a price-sorted heap to allow operating on transactions pool
// contents in a price-incrementing way.
type txPricedList struct {
all *map[common.Hash]*types.Transaction // Pointer to the map of all transactions
items *priceHeap // Heap of prices of all the stored transactions
stales int // Number of stale price points to (re-heap trigger)
all *map[common.Hash]txLookupRec // Pointer to the map of all transactions
items *priceHeap // Heap of prices of all the stored transactions
stales int // Number of stale price points to (re-heap trigger)
}
// newTxPricedList creates a new price-sorted transaction heap.
func newTxPricedList(all *map[common.Hash]*types.Transaction) *txPricedList {
func newTxPricedList(all *map[common.Hash]txLookupRec) *txPricedList {
return &txPricedList{
all: all,
items: new(priceHeap),
@ -416,7 +416,7 @@ func (l *txPricedList) Removed() {
l.stales, l.items = 0, &reheap
for _, tx := range *l.all {
*l.items = append(*l.items, tx)
*l.items = append(*l.items, tx.tx)
}
heap.Init(l.items)
}