package core
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import (
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"fmt"
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"time"
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dbm "github.com/tendermint/tm-db"
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cfg "github.com/tendermint/tendermint/config"
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"github.com/tendermint/tendermint/consensus"
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"github.com/tendermint/tendermint/crypto"
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"github.com/tendermint/tendermint/libs/log"
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mempl "github.com/tendermint/tendermint/mempool"
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"github.com/tendermint/tendermint/p2p"
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"github.com/tendermint/tendermint/proxy"
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sm "github.com/tendermint/tendermint/state"
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"github.com/tendermint/tendermint/state/txindex"
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"github.com/tendermint/tendermint/types"
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)
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const (
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// see README
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defaultPerPage = 30
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maxPerPage = 100
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// SubscribeTimeout is the maximum time we wait to subscribe for an event.
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// must be less than the server's write timeout (see rpcserver.DefaultConfig)
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SubscribeTimeout = 5 * time.Second
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)
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//----------------------------------------------
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// These interfaces are used by RPC and must be thread safe
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type Consensus interface {
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GetState() sm.State
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GetValidators() (int64, []*types.Validator)
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GetLastHeight() int64
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GetRoundStateJSON() ([]byte, error)
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GetRoundStateSimpleJSON() ([]byte, error)
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}
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type transport interface {
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Listeners() []string
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IsListening() bool
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NodeInfo() p2p.NodeInfo
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}
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type peers interface {
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AddPersistentPeers([]string) error
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DialPeersAsync([]string) error
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Peers() p2p.IPeerSet
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}
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//----------------------------------------------
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// These package level globals come with setters
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// that are expected to be called only once, on startup
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var (
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// external, thread safe interfaces
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proxyAppQuery proxy.AppConnQuery
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// interfaces defined in types and above
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stateDB dbm.DB
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blockStore sm.BlockStore
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evidencePool sm.EvidencePool
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consensusState Consensus
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p2pPeers peers
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p2pTransport transport
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// objects
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pubKey crypto.PubKey
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genDoc *types.GenesisDoc // cache the genesis structure
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txIndexer txindex.TxIndexer
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consensusReactor *consensus.Reactor
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eventBus *types.EventBus // thread safe
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mempool mempl.Mempool
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logger log.Logger
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config cfg.RPCConfig
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)
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func SetStateDB(db dbm.DB) {
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stateDB = db
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}
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func SetBlockStore(bs sm.BlockStore) {
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blockStore = bs
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}
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func SetMempool(mem mempl.Mempool) {
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mempool = mem
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}
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func SetEvidencePool(evpool sm.EvidencePool) {
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evidencePool = evpool
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}
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func SetConsensusState(cs Consensus) {
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consensusState = cs
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}
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func SetP2PPeers(p peers) {
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p2pPeers = p
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}
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func SetP2PTransport(t transport) {
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p2pTransport = t
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}
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func SetPubKey(pk crypto.PubKey) {
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pubKey = pk
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}
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func SetGenesisDoc(doc *types.GenesisDoc) {
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genDoc = doc
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}
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func SetProxyAppQuery(appConn proxy.AppConnQuery) {
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proxyAppQuery = appConn
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}
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func SetTxIndexer(indexer txindex.TxIndexer) {
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txIndexer = indexer
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}
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func SetConsensusReactor(conR *consensus.Reactor) {
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consensusReactor = conR
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}
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func SetLogger(l log.Logger) {
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logger = l
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}
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func SetEventBus(b *types.EventBus) {
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eventBus = b
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}
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// SetConfig sets an RPCConfig.
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func SetConfig(c cfg.RPCConfig) {
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config = c
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}
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func validatePage(page, perPage, totalCount int) (int, error) {
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if perPage < 1 {
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panic(fmt.Sprintf("zero or negative perPage: %d", perPage))
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}
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if page == 0 {
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return 1, nil // default
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}
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pages := ((totalCount - 1) / perPage) + 1
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if pages == 0 {
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pages = 1 // one page (even if it's empty)
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}
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if page < 0 || page > pages {
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return 1, fmt.Errorf("page should be within [0, %d] range, given %d", pages, page)
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}
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return page, nil
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}
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func validatePerPage(perPage int) int {
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if perPage < 1 {
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return defaultPerPage
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} else if perPage > maxPerPage {
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return maxPerPage
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}
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return perPage
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}
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func validateSkipCount(page, perPage int) int {
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skipCount := (page - 1) * perPage
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if skipCount < 0 {
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return 0
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}
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return skipCount
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}
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