func (tran *TransactionList) Print() {
for _, tx := range tran.Txs {
log.Printf("TxId: %v", tx.Hash)
log.Print("TxIns:")
if tx.TxInCnt == 1 && tx.TxIns[0].InputVout == 4294967295 {
log.Printf("TxIn coinbase, newly generated coins")
} else {
for txin_index, txin := range tx.TxIns {
log.Printf("TxIn index: %v", txin_index)
log.Printf("TxIn Input_Hash: %v", txin.InputHash)
log.Printf("TxIn Input_Index: %v", txin.InputVout)
}
}
log.Print("TxOuts:")
for txo_index, txout := range tx.TxOuts {
log.Printf("TxOut index: %v", txo_index)
log.Printf("TxOut value: %v", txout.Value)
txout_addr := txout.Addr
if txout_addr != "" {
log.Printf("TxOut address: %v", txout_addr)
} else {
log.Printf("TxOut address: can't decode address")
}
}
}
}
// Run initiates a RandHound simulation
func (rhs *RHSimulation) Run(config *sda.SimulationConfig) error {
leader, err := config.Overlay.CreateProtocolSDA(config.Tree, "RandHound")
if err != nil {
return err
}
rh := leader.(*RandHound)
err = rh.Setup(uint32(rhs.Hosts), rhs.Trustees, rhs.Purpose)
if err != nil {
return err
}
log.Printf("RandHound - group config: %d %d %d %d %d %d\n", rh.Group.N, rh.Group.F, rh.Group.L, rh.Group.K, rh.Group.R, rh.Group.T)
log.Printf("RandHound - shards: %d\n", rhs.Shards)
if err := rh.StartProtocol(); err != nil {
log.Error("Error while starting protcol:", err)
}
select {
case <-rh.Leader.Done:
log.Print("RandHound - done")
rnd, err := rh.Random()
if err != nil {
panic(err)
}
sharding, err := rh.Shard(rnd, rhs.Shards)
if err != nil {
panic(err)
}
log.Printf("RandHound - random bytes: %v\n", rnd)
log.Printf("RandHound - sharding: %v\n", sharding)
case <-time.After(time.Second * 60):
log.Print("RandHound - time out")
}
return nil
}
func TestRandHound(t *testing.T) {
// Setup parameters
var name string = "RandHound" // Protocol name
var nodes uint32 = 10 // Number of nodes (peers + leader)
var trustees uint32 = 5 // Number of trustees
var purpose string = "RandHound test run" // Purpose
var shards uint32 = 2 // Number of shards created from the randomness
local := sda.NewLocalTest()
_, _, tree := local.GenTree(int(nodes), false, true, true)
defer local.CloseAll()
log.TestOutput(testing.Verbose(), 1)
// Setup and Start RandHound
log.Printf("RandHound - starting")
leader, err := local.CreateProtocol(tree, name)
if err != nil {
t.Fatal("Couldn't initialise RandHound protocol:", err)
}
rh := leader.(*randhound.RandHound)
err = rh.Setup(nodes, trustees, purpose)
if err != nil {
t.Fatal("Couldn't initialise RandHound protocol:", err)
}
log.Printf("RandHound - group config: %d %d %d %d %d %d\n", rh.Group.N, rh.Group.F, rh.Group.L, rh.Group.K, rh.Group.R, rh.Group.T)
log.Printf("RandHound - shards: %d\n", shards)
leader.Start()
select {
case <-rh.Leader.Done:
log.Printf("RandHound - done")
rnd, err := rh.Random()
if err != nil {
t.Fatal(err)
}
sharding, err := rh.Shard(rnd, shards)
if err != nil {
t.Fatal(err)
}
log.Printf("RandHound - random bytes: %v\n", rnd)
log.Printf("RandHound - sharding: %v\n", sharding)
case <-time.After(time.Second * 60):
t.Fatal("RandHound – time out")
}
}