func (s *ProxyServer) StatsIndex(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "application/json; charset=UTF-8")
w.WriteHeader(http.StatusOK)
hashrate, hashrate24h, totalOnline, miners := s.collectMinersStats()
stats := map[string]interface{}{
"miners": miners,
"hashrate": hashrate,
"hashrate24h": hashrate24h,
"totalMiners": len(miners),
"totalOnline": totalOnline,
"timedOut": len(miners) - totalOnline,
}
var upstreams []interface{}
current := atomic.LoadInt32(&s.upstream)
for i, u := range s.upstreams {
upstream := convertUpstream(u)
upstream["current"] = current == int32(i)
upstreams = append(upstreams, upstream)
}
stats["upstreams"] = upstreams
stats["current"] = convertUpstream(s.rpc())
stats["url"] = "http://" + s.config.Proxy.Listen + " -u minername -p x"
t := s.currentBlockTemplate()
stats["height"] = t.Height
stats["diff"] = util.GetDifficultyRatio(blockchain.BigToCompact(t.Difficulty))
stats["luck"] = s.getLuckStats()
stats["now"] = util.MakeTimestamp()
json.NewEncoder(w).Encode(stats)
}
// This example demonstrates how to convert a target difficulty into the compact
// "bits" in a block header which represent that target difficulty .
func ExampleBigToCompact() {
// Convert the target difficulty from block 300000 in the main block
// chain to compact form.
t := "0000000000000000896c00000000000000000000000000000000000000000000"
targetDifficulty, success := new(big.Int).SetString(t, 16)
if !success {
fmt.Println("invalid target difficulty")
return
}
bits := blockchain.BigToCompact(targetDifficulty)
fmt.Println(bits)
// Output:
// 419465580
}
func TestBigToCompact(t *testing.T) {
tests := []struct {
in int64
out uint32
}{
{0, 0},
{-1, 25231360},
}
for x, test := range tests {
n := big.NewInt(test.in)
r := blockchain.BigToCompact(n)
if r != test.out {
t.Errorf("TestBigToCompact test #%d failed: got %d want %d\n",
x, r, test.out)
return
}
}
}