// receives on a write channel and writes out on the socket
func (wsc *WSConnection) writeRoutine() {
defer wsc.baseConn.Close()
var n, err = int64(0), error(nil)
for {
select {
case <-wsc.Quit:
return
case <-wsc.pingTicker.C:
err := wsc.baseConn.WriteMessage(websocket.PingMessage, []byte{})
if err != nil {
log.Error("Failed to write ping message on websocket", "error", err)
wsc.Stop()
return
}
case msg := <-wsc.writeChan:
buf := new(bytes.Buffer)
wire.WriteJSON(msg, buf, &n, &err)
if err != nil {
log.Error("Failed to marshal RPCResponse to JSON", "error", err)
} else {
wsc.baseConn.SetWriteDeadline(time.Now().Add(time.Second * wsWriteTimeoutSeconds))
if err = wsc.baseConn.WriteMessage(websocket.TextMessage, buf.Bytes()); err != nil {
log.Warn("Failed to write response on websocket", "error", err)
wsc.Stop()
return
}
}
}
}
}
func (tx *PermissionsTx) WriteSignBytes(chainID string, w io.Writer, n *int64, err *error) {
wire.WriteTo([]byte(Fmt(`{"chain_id":%s`, jsonEscape(chainID))), w, n, err)
wire.WriteTo([]byte(Fmt(`,"tx":[%v,{"args":"`, TxTypePermissions)), w, n, err)
wire.WriteJSON(tx.PermArgs, w, n, err)
wire.WriteTo([]byte(`","input":`), w, n, err)
tx.Input.WriteSignBytes(w, n, err)
wire.WriteTo([]byte(`}]}`), w, n, err)
}
func WriteRPCResponse(w http.ResponseWriter, res RPCResponse) {
buf, n, err := new(bytes.Buffer), int64(0), error(nil)
wire.WriteJSON(res, buf, &n, &err)
if err != nil {
log.Error("Failed to write RPC response", "error", err, "res", res)
}
w.Header().Set("Content-Type", "application/json")
w.WriteHeader(200)
w.Write(buf.Bytes())
}
func binaryWriter(args ...interface{}) ([]interface{}, error) {
list := []interface{}{}
for _, a := range args {
buf, n, err := new(bytes.Buffer), new(int64), new(error)
wire.WriteJSON(a, buf, n, err)
if *err != nil {
return nil, *err
}
list = append(list, buf.Bytes())
}
return list, nil
}
func argsToJson(args ...interface{}) ([]string, error) {
l := len(args)
jsons := make([]string, l)
n, err := new(int64), new(error)
for i, a := range args {
buf := new(bytes.Buffer)
wire.WriteJSON(a, buf, n, err)
if *err != nil {
return nil, *err
}
jsons[i] = string(buf.Bytes())
}
return jsons, nil
}
// Used to write json files using tendermints wire package.
func writeJSON(file string, v interface{}) error {
var n int64
var errW error
fo, errC := os.Create(file)
if errC != nil {
return errC
}
wire.WriteJSON(v, fo, &n, &errW)
if errW != nil {
return errW
}
errL := fo.Close()
if errL != nil {
return errL
}
return nil
}
func NewNode() *Node {
// Get BlockStore
blockStoreDB := dbm.GetDB("blockstore")
blockStore := bc.NewBlockStore(blockStoreDB)
// Get State
stateDB := dbm.GetDB("state")
state := sm.LoadState(stateDB)
var genDoc *stypes.GenesisDoc
if state == nil {
genDoc, state = sm.MakeGenesisStateFromFile(stateDB, config.GetString("genesis_file"))
state.Save()
// write the gendoc to db
buf, n, err := new(bytes.Buffer), new(int64), new(error)
wire.WriteJSON(genDoc, buf, n, err)
stateDB.Set(stypes.GenDocKey, buf.Bytes())
if *err != nil {
Exit(Fmt("Unable to write gendoc to db: %v", err))
}
} else {
genDocBytes := stateDB.Get(stypes.GenDocKey)
err := new(error)
wire.ReadJSONPtr(&genDoc, genDocBytes, err)
if *err != nil {
Exit(Fmt("Unable to read gendoc from db: %v", err))
}
}
// add the chainid to the global config
config.Set("chain_id", state.ChainID)
// Get PrivValidator
privValidatorFile := config.GetString("priv_validator_file")
privValidator := types.LoadOrGenPrivValidator(privValidatorFile)
// Generate node PrivKey
privKey := acm.GenPrivKeyEd25519()
// Make event switch
eventSwitch := events.NewEventSwitch()
_, err := eventSwitch.Start()
if err != nil {
Exit(Fmt("Failed to start switch: %v", err))
}
// Make PEXReactor
book := p2p.NewAddrBook(config.GetString("addrbook_file"))
pexReactor := p2p.NewPEXReactor(book)
// Make BlockchainReactor
bcReactor := bc.NewBlockchainReactor(state.Copy(), blockStore, config.GetBool("fast_sync"))
// Make MempoolReactor
mempool := mempl.NewMempool(state.Copy())
mempoolReactor := mempl.NewMempoolReactor(mempool)
// Make ConsensusReactor
consensusState := consensus.NewConsensusState(state.Copy(), blockStore, mempoolReactor)
consensusReactor := consensus.NewConsensusReactor(consensusState, blockStore, config.GetBool("fast_sync"))
if privValidator != nil {
consensusReactor.SetPrivValidator(privValidator)
}
// Make p2p network switch
sw := p2p.NewSwitch()
sw.AddReactor("PEX", pexReactor)
sw.AddReactor("MEMPOOL", mempoolReactor)
sw.AddReactor("BLOCKCHAIN", bcReactor)
sw.AddReactor("CONSENSUS", consensusReactor)
// add the event switch to all services
// they should all satisfy events.Eventable
SetFireable(eventSwitch, pexReactor, bcReactor, mempoolReactor, consensusReactor)
// run the profile server
profileHost := config.GetString("prof_laddr")
if profileHost != "" {
go func() {
log.Warn("Profile server", "error", http.ListenAndServe(profileHost, nil))
}()
}
// set vm log level
vm.SetDebug(config.GetBool("vm_log"))
return &Node{
sw: sw,
evsw: eventSwitch,
book: book,
blockStore: blockStore,
pexReactor: pexReactor,
bcReactor: bcReactor,
mempoolReactor: mempoolReactor,
consensusState: consensusState,
consensusReactor: consensusReactor,
privValidator: privValidator,
genDoc: genDoc,
privKey: privKey,
}
}