Ivan Tomilov ebd77aabe2 Merging bug/whisper-on-geth1.6.1 (#236) which acts like develop
* static: updates Whisper test (to work with Geth 1.6.1)
* jail: VM persistence implemented
* jail: sendMessage/showSuggestions minor fixes (to be squashed)
* node: CHT and boot nodes auto-load implemented
* Replaced CHT data file from farazdagi's to tiabc's
* Rewrote config_test.go using testify having reduced it twice in size
* Increased SyncTime and panic timeout in tests
* Fixed test - remove go default test to testify/suite (#207)
* Add flag setup for RPCEnabled and add comment (#225)
* jail: register method handlers before running initial js in jail (#226)
* Console Jail Mod #179 (#228)
* Added ./statusd-data into .gitignore
* Increased log level for the test node from INFO to ERROR
* Add call to loop.Run to evaluate all setTimeout/setIntervals methods. (#208)
* Rebase onto geth1.6.7 (#232)
* Got back sync duration from 60s to 30s, updated bindata.go
2017-08-04 23:14:17 +07:00

95 lines
2.5 KiB
Go

// Copyright 2016 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package les
import (
"context"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/light"
"github.com/ethereum/go-ethereum/log"
)
// LesOdr implements light.OdrBackend
type LesOdr struct {
db ethdb.Database
stop chan struct{}
retriever *retrieveManager
}
func NewLesOdr(db ethdb.Database, retriever *retrieveManager) *LesOdr {
return &LesOdr{
db: db,
retriever: retriever,
stop: make(chan struct{}),
}
}
func (odr *LesOdr) Stop() {
close(odr.stop)
}
func (odr *LesOdr) Database() ethdb.Database {
return odr.db
}
const (
MsgBlockBodies = iota
MsgCode
MsgReceipts
MsgProofs
MsgHeaderProofs
)
// Msg encodes a LES message that delivers reply data for a request
type Msg struct {
MsgType int
ReqID uint64
Obj interface{}
}
// Retrieve tries to fetch an object from the LES network.
// If the network retrieval was successful, it stores the object in local db.
func (self *LesOdr) Retrieve(ctx context.Context, req light.OdrRequest) (err error) {
lreq := LesRequest(req)
reqID := genReqID()
rq := &distReq{
getCost: func(dp distPeer) uint64 {
return lreq.GetCost(dp.(*peer))
},
canSend: func(dp distPeer) bool {
p := dp.(*peer)
return lreq.CanSend(p)
},
request: func(dp distPeer) func() {
p := dp.(*peer)
cost := lreq.GetCost(p)
p.fcServer.QueueRequest(reqID, cost)
return func() { lreq.Request(reqID, p) }
},
}
if err = self.retriever.retrieve(ctx, reqID, rq, func(p distPeer, msg *Msg) error { return lreq.Validate(self.db, msg) }); err == nil {
// retrieved from network, store in db
req.StoreResult(self.db)
} else {
log.Debug("Failed to retrieve data from network", "err", err)
}
return
}