github.1485827954.workers.dev/ethereum/go-ethereum@v1.14.3/eth/sync.go (about)

     1  // Copyright 2015 The go-ethereum Authors
     2  // This file is part of the go-ethereum library.
     3  //
     4  // The go-ethereum library is free software: you can redistribute it and/or modify
     5  // it under the terms of the GNU Lesser General Public License as published by
     6  // the Free Software Foundation, either version 3 of the License, or
     7  // (at your option) any later version.
     8  //
     9  // The go-ethereum library is distributed in the hope that it will be useful,
    10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    12  // GNU Lesser General Public License for more details.
    13  //
    14  // You should have received a copy of the GNU Lesser General Public License
    15  // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
    16  
    17  package eth
    18  
    19  import (
    20  	"github.com/ethereum/go-ethereum/common"
    21  	"github.com/ethereum/go-ethereum/core/txpool"
    22  	"github.com/ethereum/go-ethereum/eth/protocols/eth"
    23  )
    24  
    25  // syncTransactions starts sending all currently pending transactions to the given peer.
    26  func (h *handler) syncTransactions(p *eth.Peer) {
    27  	var hashes []common.Hash
    28  	for _, batch := range h.txpool.Pending(txpool.PendingFilter{OnlyPlainTxs: true}) {
    29  		for _, tx := range batch {
    30  			hashes = append(hashes, tx.Hash)
    31  		}
    32  	}
    33  	if len(hashes) == 0 {
    34  		return
    35  	}
    36  	p.AsyncSendPooledTransactionHashes(hashes)
    37  }