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cmd/bootnode, eth, p2p, p2p/discover: clean up the seeder and mesh into eth.

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This commit is contained in:
Péter Szilágyi
2015-04-24 11:19:33 +03:00
parent 971702e7a1
commit 6def110c37
9 changed files with 168 additions and 144 deletions
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23
p2p/discover/table.go
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@ -27,6 +27,7 @@ type Table struct {
mutex sync.Mutex // protects buckets, their content, and nursery
buckets [nBuckets]*bucket // index of known nodes by distance
nursery []*Node // bootstrap nodes
cache *Cache // cache of known nodes
bondmu sync.Mutex
bonding map[NodeID]*bondproc
@ -34,7 +35,6 @@ type Table struct {
net transport
self *Node // metadata of the local node
db *nodeDB
}
type bondproc struct {
@ -61,17 +61,15 @@ type bucket struct {
entries []*Node
}
func newTable(t transport, ourID NodeID, ourAddr *net.UDPAddr, seedCache string) *Table {
// Load the bootstrap seed cache (use in memory db upon failure)
db, err := newNodeDB(seedCache, Version)
if err != nil {
glog.V(logger.Warn).Infoln("Failed to open bootstrap seed cache:", err)
db, _ = newNodeDB("", Version)
func newTable(t transport, ourID NodeID, ourAddr *net.UDPAddr, seeder *Cache) *Table {
// If no seed cache was given, use an in-memory one
if seeder == nil {
seeder, _ = NewMemoryCache()
}
// Create the bootstrap table
tab := &Table{
net: t,
db: db,
cache: seeder,
self: newNode(ourID, ourAddr),
bonding: make(map[NodeID]*bondproc),
bondslots: make(chan struct{}, maxBondingPingPongs),
@ -93,7 +91,6 @@ func (tab *Table) Self() *Node {
// Close terminates the network listener and flushes the seed cache.
func (tab *Table) Close() {
tab.net.close()
tab.db.close()
}
// Bootstrap sets the bootstrap nodes. These nodes are used to connect
@ -178,10 +175,10 @@ func (tab *Table) refresh() {
result := tab.Lookup(randomID(tab.self.ID, ld))
if len(result) == 0 {
// Pick a batch of previously know seeds to lookup with and discard them (will come back if they are still live)
seeds := tab.db.list(10)
seeds := tab.cache.list(10)
for _, seed := range seeds {
glog.V(logger.Debug).Infoln("Seeding network with:", seed)
tab.db.delete(seed.ID)
tab.cache.delete(seed.ID)
}
// Bootstrap the table with a self lookup
all := tab.bondall(append(tab.nursery, seeds...))
@ -252,7 +249,7 @@ func (tab *Table) bondall(nodes []*Node) (result []*Node) {
// of the process can be skipped.
func (tab *Table) bond(pinged bool, id NodeID, addr *net.UDPAddr, tcpPort uint16) (*Node, error) {
var n *Node
if n = tab.db.get(id); n == nil {
if n = tab.cache.get(id); n == nil {
tab.bondmu.Lock()
w := tab.bonding[id]
if w != nil {
@ -297,7 +294,7 @@ func (tab *Table) pingpong(w *bondproc, pinged bool, id NodeID, addr *net.UDPAdd
// waitping will simply time out.
tab.net.waitping(id)
}
w.n = tab.db.add(id, addr, tcpPort)
w.n = tab.cache.add(id, addr, tcpPort)
close(w.done)
}