Merge pull request #3725 from karalabe/kill-it-with-fire
errs: kill it with fire
This commit is contained in:
commit
167be7f260
@ -1,78 +0,0 @@
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// Copyright 2015 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package errs
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import "fmt"
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/*
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Errors implements an error handler providing standardised errors for a package.
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Fields:
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Errors:
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a map from error codes to description
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Package:
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name of the package/component
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*/
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type Errors struct {
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Errors map[int]string
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Package string
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}
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/*
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Error implements the standard go error interface.
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errors.New(code, format, params ...interface{})
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Prints as:
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[package] description: details
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where details is fmt.Sprintf(self.format, self.params...)
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*/
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type Error struct {
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Code int
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Name string
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Package string
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message string
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format string
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params []interface{}
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}
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func (self *Errors) New(code int, format string, params ...interface{}) *Error {
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name, ok := self.Errors[code]
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if !ok {
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panic("invalid error code")
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}
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return &Error{
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Code: code,
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Name: name,
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Package: self.Package,
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format: format,
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params: params,
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}
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}
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func (self Error) Error() (message string) {
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if len(message) == 0 {
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self.message = fmt.Sprintf("[%s] ERROR: %s", self.Package, self.Name)
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if self.format != "" {
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self.message += ": " + fmt.Sprintf(self.format, self.params...)
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}
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}
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return self.message
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}
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@ -1,41 +0,0 @@
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// Copyright 2015 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// 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
|
|
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// (at your option) any later version.
|
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
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// GNU Lesser General Public License for more details.
|
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package errs
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import (
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"fmt"
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"testing"
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)
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func testErrors() *Errors {
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return &Errors{
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Package: "TEST",
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Errors: map[int]string{
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0: "zero",
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1: "one",
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},
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}
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}
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func TestErrorMessage(t *testing.T) {
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err := testErrors().New(0, "zero detail %v", "available")
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message := fmt.Sprintf("%v", err)
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exp := "[TEST] ERROR: zero: zero detail available"
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if message != exp {
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t.Errorf("error message incorrect. expected %v, got %v", exp, message)
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}
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}
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@ -31,13 +31,13 @@ The bzz protocol component speaks the bzz protocol
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*/
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*/
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import (
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import (
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"errors"
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"fmt"
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"fmt"
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"net"
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"net"
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"strconv"
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"strconv"
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"time"
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"time"
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"github.com/ethereum/go-ethereum/contracts/chequebook"
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"github.com/ethereum/go-ethereum/contracts/chequebook"
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"github.com/ethereum/go-ethereum/errs"
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"github.com/ethereum/go-ethereum/log"
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"github.com/ethereum/go-ethereum/log"
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"github.com/ethereum/go-ethereum/p2p"
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"github.com/ethereum/go-ethereum/p2p"
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"github.com/ethereum/go-ethereum/p2p/discover"
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"github.com/ethereum/go-ethereum/p2p/discover"
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@ -53,32 +53,6 @@ const (
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NetworkId = 3
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NetworkId = 3
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)
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)
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const (
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ErrMsgTooLarge = iota
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ErrDecode
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ErrInvalidMsgCode
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ErrVersionMismatch
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ErrNetworkIdMismatch
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ErrNoStatusMsg
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ErrExtraStatusMsg
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ErrSwap
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ErrSync
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ErrUnwanted
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)
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var errorToString = map[int]string{
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ErrMsgTooLarge: "Message too long",
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ErrDecode: "Invalid message",
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ErrInvalidMsgCode: "Invalid message code",
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ErrVersionMismatch: "Protocol version mismatch",
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ErrNetworkIdMismatch: "NetworkId mismatch",
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ErrNoStatusMsg: "No status message",
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ErrExtraStatusMsg: "Extra status message",
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ErrSwap: "SWAP error",
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ErrSync: "Sync error",
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ErrUnwanted: "Unwanted peer",
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}
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// bzz represents the swarm wire protocol
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// bzz represents the swarm wire protocol
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// an instance is running on each peer
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// an instance is running on each peer
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type bzz struct {
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type bzz struct {
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@ -91,7 +65,6 @@ type bzz struct {
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remoteAddr *peerAddr // remote peers address
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remoteAddr *peerAddr // remote peers address
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peer *p2p.Peer // the p2p peer object
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peer *p2p.Peer // the p2p peer object
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rw p2p.MsgReadWriter // messageReadWriter to send messages to
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rw p2p.MsgReadWriter // messageReadWriter to send messages to
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errors *errs.Errors // errors table
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backend chequebook.Backend
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backend chequebook.Backend
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lastActive time.Time
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lastActive time.Time
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NetworkId uint64
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NetworkId uint64
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@ -162,17 +135,13 @@ the main protocol loop that
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func run(requestDb *storage.LDBDatabase, depo StorageHandler, backend chequebook.Backend, hive *Hive, dbaccess *DbAccess, sp *bzzswap.SwapParams, sy *SyncParams, networkId uint64, p *p2p.Peer, rw p2p.MsgReadWriter) (err error) {
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func run(requestDb *storage.LDBDatabase, depo StorageHandler, backend chequebook.Backend, hive *Hive, dbaccess *DbAccess, sp *bzzswap.SwapParams, sy *SyncParams, networkId uint64, p *p2p.Peer, rw p2p.MsgReadWriter) (err error) {
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self := &bzz{
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self := &bzz{
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storage: depo,
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storage: depo,
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backend: backend,
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backend: backend,
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hive: hive,
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hive: hive,
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dbAccess: dbaccess,
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dbAccess: dbaccess,
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requestDb: requestDb,
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requestDb: requestDb,
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peer: p,
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peer: p,
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rw: rw,
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rw: rw,
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errors: &errs.Errors{
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Package: "BZZ",
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Errors: errorToString,
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},
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swapParams: sp,
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swapParams: sp,
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syncParams: sy,
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syncParams: sy,
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swapEnabled: hive.swapEnabled,
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swapEnabled: hive.swapEnabled,
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@ -225,7 +194,7 @@ func (self *bzz) handle() error {
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return err
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return err
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}
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}
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if msg.Size > ProtocolMaxMsgSize {
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if msg.Size > ProtocolMaxMsgSize {
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return self.protoError(ErrMsgTooLarge, "%v > %v", msg.Size, ProtocolMaxMsgSize)
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return fmt.Errorf("message too long: %v > %v", msg.Size, ProtocolMaxMsgSize)
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}
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}
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// make sure that the payload has been fully consumed
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// make sure that the payload has been fully consumed
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defer msg.Discard()
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defer msg.Discard()
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@ -236,16 +205,16 @@ func (self *bzz) handle() error {
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// no extra status message allowed. The one needed already handled by
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// no extra status message allowed. The one needed already handled by
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// handleStatus
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// handleStatus
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log.Debug(fmt.Sprintf("Status message: %v", msg))
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log.Debug(fmt.Sprintf("Status message: %v", msg))
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return self.protoError(ErrExtraStatusMsg, "")
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return errors.New("extra status message")
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case storeRequestMsg:
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case storeRequestMsg:
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// store requests are dispatched to netStore
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// store requests are dispatched to netStore
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var req storeRequestMsgData
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var req storeRequestMsgData
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if err := msg.Decode(&req); err != nil {
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if err := msg.Decode(&req); err != nil {
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return self.protoError(ErrDecode, "<- %v: %v", msg, err)
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return fmt.Errorf("<- %v: %v", msg, err)
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}
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}
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if len(req.SData) < 9 {
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if n := len(req.SData); n < 9 {
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return self.protoError(ErrDecode, "<- %v: Data too short (%v)", msg)
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return fmt.Errorf("<- %v: Data too short (%v)", msg, n)
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}
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}
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// last Active time is set only when receiving chunks
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// last Active time is set only when receiving chunks
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self.lastActive = time.Now()
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self.lastActive = time.Now()
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@ -257,14 +226,14 @@ func (self *bzz) handle() error {
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// retrieve Requests are dispatched to netStore
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// retrieve Requests are dispatched to netStore
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var req retrieveRequestMsgData
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var req retrieveRequestMsgData
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if err := msg.Decode(&req); err != nil {
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if err := msg.Decode(&req); err != nil {
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return self.protoError(ErrDecode, "<- %v: %v", msg, err)
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return fmt.Errorf("<- %v: %v", msg, err)
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}
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}
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req.from = &peer{bzz: self}
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req.from = &peer{bzz: self}
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// if request is lookup and not to be delivered
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// if request is lookup and not to be delivered
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if req.isLookup() {
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if req.isLookup() {
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log.Trace(fmt.Sprintf("self lookup for %v: responding with peers only...", req.from))
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log.Trace(fmt.Sprintf("self lookup for %v: responding with peers only...", req.from))
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} else if req.Key == nil {
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} else if req.Key == nil {
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return self.protoError(ErrDecode, "protocol handler: req.Key == nil || req.Timeout == nil")
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return fmt.Errorf("protocol handler: req.Key == nil || req.Timeout == nil")
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} else {
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} else {
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// swap accounting is done within netStore
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// swap accounting is done within netStore
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self.storage.HandleRetrieveRequestMsg(&req, &peer{bzz: self})
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self.storage.HandleRetrieveRequestMsg(&req, &peer{bzz: self})
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@ -277,7 +246,7 @@ func (self *bzz) handle() error {
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// dispatches new peer data to the hive that adds them to KADDB
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// dispatches new peer data to the hive that adds them to KADDB
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var req peersMsgData
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var req peersMsgData
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if err := msg.Decode(&req); err != nil {
|
if err := msg.Decode(&req); err != nil {
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return self.protoError(ErrDecode, "<- %v: %v", msg, err)
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return fmt.Errorf("<- %v: %v", msg, err)
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}
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}
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req.from = &peer{bzz: self}
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req.from = &peer{bzz: self}
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log.Trace(fmt.Sprintf("<- peer addresses: %v", req))
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log.Trace(fmt.Sprintf("<- peer addresses: %v", req))
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@ -286,7 +255,7 @@ func (self *bzz) handle() error {
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case syncRequestMsg:
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case syncRequestMsg:
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var req syncRequestMsgData
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var req syncRequestMsgData
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if err := msg.Decode(&req); err != nil {
|
if err := msg.Decode(&req); err != nil {
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return self.protoError(ErrDecode, "<- %v: %v", msg, err)
|
return fmt.Errorf("<- %v: %v", msg, err)
|
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}
|
}
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log.Debug(fmt.Sprintf("<- sync request: %v", req))
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log.Debug(fmt.Sprintf("<- sync request: %v", req))
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self.lastActive = time.Now()
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self.lastActive = time.Now()
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@ -296,13 +265,13 @@ func (self *bzz) handle() error {
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// coming from parent node offering
|
// coming from parent node offering
|
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var req unsyncedKeysMsgData
|
var req unsyncedKeysMsgData
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if err := msg.Decode(&req); err != nil {
|
if err := msg.Decode(&req); err != nil {
|
||||||
return self.protoError(ErrDecode, "<- %v: %v", msg, err)
|
return fmt.Errorf("<- %v: %v", msg, err)
|
||||||
}
|
}
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log.Debug(fmt.Sprintf("<- unsynced keys : %s", req.String()))
|
log.Debug(fmt.Sprintf("<- unsynced keys : %s", req.String()))
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err := self.storage.HandleUnsyncedKeysMsg(&req, &peer{bzz: self})
|
err := self.storage.HandleUnsyncedKeysMsg(&req, &peer{bzz: self})
|
||||||
self.lastActive = time.Now()
|
self.lastActive = time.Now()
|
||||||
if err != nil {
|
if err != nil {
|
||||||
return self.protoError(ErrDecode, "<- %v: %v", msg, err)
|
return fmt.Errorf("<- %v: %v", msg, err)
|
||||||
}
|
}
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||||||
|
|
||||||
case deliveryRequestMsg:
|
case deliveryRequestMsg:
|
||||||
@ -310,13 +279,13 @@ func (self *bzz) handle() error {
|
|||||||
// also relays the last synced state to the source
|
// also relays the last synced state to the source
|
||||||
var req deliveryRequestMsgData
|
var req deliveryRequestMsgData
|
||||||
if err := msg.Decode(&req); err != nil {
|
if err := msg.Decode(&req); err != nil {
|
||||||
return self.protoError(ErrDecode, "<-msg %v: %v", msg, err)
|
return fmt.Errorf("<-msg %v: %v", msg, err)
|
||||||
}
|
}
|
||||||
log.Debug(fmt.Sprintf("<- delivery request: %s", req.String()))
|
log.Debug(fmt.Sprintf("<- delivery request: %s", req.String()))
|
||||||
err := self.storage.HandleDeliveryRequestMsg(&req, &peer{bzz: self})
|
err := self.storage.HandleDeliveryRequestMsg(&req, &peer{bzz: self})
|
||||||
self.lastActive = time.Now()
|
self.lastActive = time.Now()
|
||||||
if err != nil {
|
if err != nil {
|
||||||
return self.protoError(ErrDecode, "<- %v: %v", msg, err)
|
return fmt.Errorf("<- %v: %v", msg, err)
|
||||||
}
|
}
|
||||||
|
|
||||||
case paymentMsg:
|
case paymentMsg:
|
||||||
@ -324,7 +293,7 @@ func (self *bzz) handle() error {
|
|||||||
if self.swapEnabled {
|
if self.swapEnabled {
|
||||||
var req paymentMsgData
|
var req paymentMsgData
|
||||||
if err := msg.Decode(&req); err != nil {
|
if err := msg.Decode(&req); err != nil {
|
||||||
return self.protoError(ErrDecode, "<- %v: %v", msg, err)
|
return fmt.Errorf("<- %v: %v", msg, err)
|
||||||
}
|
}
|
||||||
log.Debug(fmt.Sprintf("<- payment: %s", req.String()))
|
log.Debug(fmt.Sprintf("<- payment: %s", req.String()))
|
||||||
self.swap.Receive(int(req.Units), req.Promise)
|
self.swap.Receive(int(req.Units), req.Promise)
|
||||||
@ -332,7 +301,7 @@ func (self *bzz) handle() error {
|
|||||||
|
|
||||||
default:
|
default:
|
||||||
// no other message is allowed
|
// no other message is allowed
|
||||||
return self.protoError(ErrInvalidMsgCode, "%v", msg.Code)
|
return fmt.Errorf("invalid message code: %v", msg.Code)
|
||||||
}
|
}
|
||||||
return nil
|
return nil
|
||||||
}
|
}
|
||||||
@ -352,7 +321,7 @@ func (self *bzz) handleStatus() (err error) {
|
|||||||
|
|
||||||
err = p2p.Send(self.rw, statusMsg, handshake)
|
err = p2p.Send(self.rw, statusMsg, handshake)
|
||||||
if err != nil {
|
if err != nil {
|
||||||
self.protoError(ErrNoStatusMsg, err.Error())
|
return err
|
||||||
}
|
}
|
||||||
|
|
||||||
// read and handle remote status
|
// read and handle remote status
|
||||||
@ -363,24 +332,24 @@ func (self *bzz) handleStatus() (err error) {
|
|||||||
}
|
}
|
||||||
|
|
||||||
if msg.Code != statusMsg {
|
if msg.Code != statusMsg {
|
||||||
self.protoError(ErrNoStatusMsg, "first msg has code %x (!= %x)", msg.Code, statusMsg)
|
return fmt.Errorf("first msg has code %x (!= %x)", msg.Code, statusMsg)
|
||||||
}
|
}
|
||||||
|
|
||||||
if msg.Size > ProtocolMaxMsgSize {
|
if msg.Size > ProtocolMaxMsgSize {
|
||||||
return self.protoError(ErrMsgTooLarge, "%v > %v", msg.Size, ProtocolMaxMsgSize)
|
return fmt.Errorf("message too long: %v > %v", msg.Size, ProtocolMaxMsgSize)
|
||||||
}
|
}
|
||||||
|
|
||||||
var status statusMsgData
|
var status statusMsgData
|
||||||
if err := msg.Decode(&status); err != nil {
|
if err := msg.Decode(&status); err != nil {
|
||||||
return self.protoError(ErrDecode, " %v: %v", msg, err)
|
return fmt.Errorf("<- %v: %v", msg, err)
|
||||||
}
|
}
|
||||||
|
|
||||||
if status.NetworkId != self.NetworkId {
|
if status.NetworkId != self.NetworkId {
|
||||||
return self.protoError(ErrNetworkIdMismatch, "%d (!= %d)", status.NetworkId, self.NetworkId)
|
return fmt.Errorf("network id mismatch: %d (!= %d)", status.NetworkId, self.NetworkId)
|
||||||
}
|
}
|
||||||
|
|
||||||
if Version != status.Version {
|
if Version != status.Version {
|
||||||
return self.protoError(ErrVersionMismatch, "%d (!= %d)", status.Version, Version)
|
return fmt.Errorf("protocol version mismatch: %d (!= %d)", status.Version, Version)
|
||||||
}
|
}
|
||||||
|
|
||||||
self.remoteAddr = self.peerAddr(status.Addr)
|
self.remoteAddr = self.peerAddr(status.Addr)
|
||||||
@ -390,14 +359,14 @@ func (self *bzz) handleStatus() (err error) {
|
|||||||
// set remote profile for accounting
|
// set remote profile for accounting
|
||||||
self.swap, err = bzzswap.NewSwap(self.swapParams, status.Swap, self.backend, self)
|
self.swap, err = bzzswap.NewSwap(self.swapParams, status.Swap, self.backend, self)
|
||||||
if err != nil {
|
if err != nil {
|
||||||
return self.protoError(ErrSwap, "%v", err)
|
return err
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
log.Info(fmt.Sprintf("Peer %08x is capable (%d/%d)", self.remoteAddr.Addr[:4], status.Version, status.NetworkId))
|
log.Info(fmt.Sprintf("Peer %08x is capable (%d/%d)", self.remoteAddr.Addr[:4], status.Version, status.NetworkId))
|
||||||
err = self.hive.addPeer(&peer{bzz: self})
|
err = self.hive.addPeer(&peer{bzz: self})
|
||||||
if err != nil {
|
if err != nil {
|
||||||
return self.protoError(ErrUnwanted, "%v", err)
|
return err
|
||||||
}
|
}
|
||||||
|
|
||||||
// hive sets syncstate so sync should start after node added
|
// hive sets syncstate so sync should start after node added
|
||||||
@ -410,7 +379,7 @@ func (self *bzz) handleStatus() (err error) {
|
|||||||
func (self *bzz) sync(state *syncState) error {
|
func (self *bzz) sync(state *syncState) error {
|
||||||
// syncer setup
|
// syncer setup
|
||||||
if self.syncer != nil {
|
if self.syncer != nil {
|
||||||
return self.protoError(ErrSync, "sync request can only be sent once")
|
return errors.New("sync request can only be sent once")
|
||||||
}
|
}
|
||||||
|
|
||||||
cnt := self.dbAccess.counter()
|
cnt := self.dbAccess.counter()
|
||||||
@ -440,7 +409,7 @@ func (self *bzz) sync(state *syncState) error {
|
|||||||
self.syncParams, state, func() bool { return self.syncEnabled },
|
self.syncParams, state, func() bool { return self.syncEnabled },
|
||||||
)
|
)
|
||||||
if err != nil {
|
if err != nil {
|
||||||
return self.protoError(ErrSync, "%v", err)
|
return nil
|
||||||
}
|
}
|
||||||
log.Trace(fmt.Sprintf("syncer set for peer %v", self))
|
log.Trace(fmt.Sprintf("syncer set for peer %v", self))
|
||||||
return nil
|
return nil
|
||||||
@ -531,12 +500,6 @@ func (self *bzz) peers(req *peersMsgData) error {
|
|||||||
return self.send(peersMsg, req)
|
return self.send(peersMsg, req)
|
||||||
}
|
}
|
||||||
|
|
||||||
func (self *bzz) protoError(code int, format string, params ...interface{}) (err *errs.Error) {
|
|
||||||
err = self.errors.New(code, format, params...)
|
|
||||||
log.Info(err.Error())
|
|
||||||
return
|
|
||||||
}
|
|
||||||
|
|
||||||
func (self *bzz) send(msg uint64, data interface{}) error {
|
func (self *bzz) send(msg uint64, data interface{}) error {
|
||||||
if self.hive.blockWrite {
|
if self.hive.blockWrite {
|
||||||
return fmt.Errorf("network write blocked")
|
return fmt.Errorf("network write blocked")
|
||||||
|
Loading…
Reference in New Issue
Block a user