rpc: separate out golang API into rpc/core

rpc/core/net.go

@@ -0,0 +1,39 @@
+package core
+
+import (
+	"github.com/tendermint/tendermint/config"
+	dbm "github.com/tendermint/tendermint/db"
+	sm "github.com/tendermint/tendermint/state"
+	"github.com/tendermint/tendermint/types"
+)
+
+//-----------------------------------------------------------------------------
+
+func Status() ([]byte, string, []byte, uint, int64) {
+	db := dbm.NewMemDB()
+	genesisState := sm.MakeGenesisStateFromFile(db, config.App().GetString("GenesisFile"))
+	genesisHash := genesisState.Hash()
+	latestHeight := blockStore.Height()
+	var (
+		latestBlockMeta *types.BlockMeta
+		latestBlockHash []byte
+		latestBlockTime int64
+	)
+	if latestHeight != 0 {
+		latestBlockMeta = blockStore.LoadBlockMeta(latestHeight)
+		latestBlockHash = latestBlockMeta.Hash
+		latestBlockTime = latestBlockMeta.Header.Time.UnixNano()
+	}
+
+	return genesisHash, config.App().GetString("Network"), latestBlockHash, latestHeight, latestBlockTime
+}
+
+//-----------------------------------------------------------------------------
+
+func NetInfo() (int, bool, string) {
+	o, i, _ := p2pSwitch.NumPeers()
+	numPeers := o + i
+	listening := p2pSwitch.IsListening()
+	network := config.App().GetString("Network")
+	return numPeers, listening, network
+}