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mutex helps, still some sequence errors from mblocks

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Seems that merkle blocks can return txs out of sequence, unlike
regular blocks which have to be in temporal/sequential order.
so maybe want to absorb ALL txs from mblock, then expel all?
This commit is contained in:
Tadge Dryja 2016-01-29 00:48:14 -08:00
parent 4cd9087f9f
commit 83dff432b1
1 changed files with 21 additions and 2 deletions
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19
uspv/eight333.go
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@ -7,6 +7,7 @@ import (
"log"
"net"
"os"
"sync"
"github.com/btcsuite/btcd/chaincfg"
"github.com/btcsuite/btcd/wire"
@ -25,6 +26,8 @@ const (
type SPVCon struct {
con net.Conn // the (probably tcp) connection to the node
headerMutex sync.Mutex
headerFile *os.File // file for SPV headers
//[doesn't work without fancy mutexes, nevermind, just use header file]
@ -182,6 +185,8 @@ func (s *SPVCon) HeightFromHeader(query wire.BlockHeader) (uint32, error) {
// happened recently.
// seek to last header
s.headerMutex.Lock()
defer s.headerMutex.Unlock()
lastPos, err := s.headerFile.Seek(-80, os.SEEK_END)
if err != nil {
return 0, err
@ -226,6 +231,8 @@ func (s *SPVCon) AskForTx(txid wire.ShaHash) {
// We don't have it in our header file so when we get it we do both operations:
// appending and checking the header, and checking spv proofs
func (s *SPVCon) AskForBlock(hsh wire.ShaHash) {
s.headerMutex.Lock()
defer s.headerMutex.Unlock()
gdata := wire.NewMsgGetData()
inv := wire.NewInvVect(wire.InvTypeFilteredBlock, &hsh)
@ -241,9 +248,13 @@ func (s *SPVCon) AskForBlock(hsh wire.ShaHash) {
fmt.Printf("AskForBlock - %s height %d\n", hsh.String(), nextHeight)
s.mBlockQueue <- hah // push height and mroot of requested block on queue
s.outMsgQueue <- gdata // push request to outbox
return
}
func (s *SPVCon) AskForHeaders() error {
s.headerMutex.Lock()
defer s.headerMutex.Unlock()
var hdr wire.BlockHeader
ghdr := wire.NewMsgGetHeaders()
ghdr.ProtocolVersion = s.localVersion
@ -319,6 +330,9 @@ func (s *SPVCon) IngestMerkleBlock(m *wire.MsgMerkleBlock) error {
// it assumes we're done and returns false. If it worked it assumes there's
// more to request and returns true.
func (s *SPVCon) IngestHeaders(m *wire.MsgHeaders) (bool, error) {
s.headerMutex.Lock()
defer s.headerMutex.Unlock()
var err error
// seek to last header
_, err = s.headerFile.Seek(-80, os.SEEK_END)
@ -431,6 +445,8 @@ func (s *SPVCon) PushTx(tx *wire.MsgTx) error {
}
func (s *SPVCon) GetNextHeaderHeight() (int32, error) {
s.headerMutex.Lock()
defer s.headerMutex.Unlock()
info, err := s.headerFile.Stat() // get
if err != nil {
return 0, err // crash if header file disappears
@ -478,6 +494,9 @@ func (s *SPVCon) AskForMerkBlocks(current, last int32) error {
s.SendFilter(filt)
fmt.Printf("sent filter %x\n", filt.MsgFilterLoad().Filter)
s.headerMutex.Lock()
defer s.headerMutex.Unlock()
_, err = s.headerFile.Seek(int64((current-1)*80), os.SEEK_SET)
if err != nil {
return err