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111 lines
2.9 KiB
111 lines
2.9 KiB
package types
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import (
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"encoding/json"
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"fmt"
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"io/ioutil"
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"sync"
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"github.com/rcrowley/go-metrics"
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tmtypes "github.com/tendermint/tendermint/types"
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)
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//------------------------------------------------
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// blockchain types
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// Known chain and validator set IDs (from which anything else can be found)
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type ChainAndValidatorSetIDs struct {
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ChainIDs []string `json:"chain_ids"`
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ValidatorSetIDs []string `json:"validator_set_ids"`
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}
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// Basic chain and network metrics
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type BlockchainStatus struct {
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// Blockchain Info
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Height int `json:"height"`
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BlockchainSize int64 `json:"blockchain_size"` // how might we get StateSize ?
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MeanBlockTime float64 `json:"mean_block_time" wire:"unsafe"`
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TxThroughput float64 `json:"tx_throughput" wire:"unsafe"`
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blockTimeMeter metrics.Meter
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txThroughputMeter metrics.Meter
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// Network Info
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NumValidators int `json:"num_validators"`
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ActiveValidators int `json:"active_validators"`
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ActiveNodes int `json:"active_nodes"`
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MeanLatency float64 `json:"mean_latency" wire:"unsafe"`
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Uptime float64 `json:"uptime" wire:"unsafe"`
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// TODO: charts for block time, latency (websockets/event-meter ?)
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}
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func NewBlockchainStatus() *BlockchainStatus {
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return &BlockchainStatus{
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blockTimeMeter: metrics.NewMeter(),
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txThroughputMeter: metrics.NewMeter(),
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}
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}
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func (s *BlockchainStatus) NewBlock(block *tmtypes.Block) {
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s.Height = block.Header.Height
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s.blockTimeMeter.Mark(1)
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s.txThroughputMeter.Mark(int64(block.Header.NumTxs))
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s.MeanBlockTime = 1 / s.blockTimeMeter.RateMean()
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s.TxThroughput = s.txThroughputMeter.RateMean()
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}
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// Main chain state
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// Returned over RPC but also used to manage state
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type ChainState struct {
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Config *BlockchainConfig `json:"config"`
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Status *BlockchainStatus `json:"status"`
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}
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// basic chain config
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// threadsafe
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type BlockchainConfig struct {
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ID string `json:"id"`
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ValSetID string `json:"val_set_id"`
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mtx sync.Mutex
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Validators []*ChainValidator `json:"validators"`
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valIDMap map[string]int // map IDs to indices
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}
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// So we can fetch validator by id
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func (bc *BlockchainConfig) PopulateValIDMap() {
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bc.mtx.Lock()
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defer bc.mtx.Unlock()
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bc.valIDMap = make(map[string]int)
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for i, v := range bc.Validators {
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bc.valIDMap[v.Validator.ID] = i
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}
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}
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func (bc *BlockchainConfig) GetValidatorByID(valID string) (*ChainValidator, error) {
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bc.mtx.Lock()
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defer bc.mtx.Unlock()
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valIndex, ok := bc.valIDMap[valID]
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if !ok {
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return nil, fmt.Errorf("Unknown validator %s", valID)
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}
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return bc.Validators[valIndex], nil
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}
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func LoadChainFromFile(configFile string) (*BlockchainConfig, error) {
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b, err := ioutil.ReadFile(configFile)
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if err != nil {
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return nil, err
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}
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// for now we start with one blockchain loaded from file;
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// eventually more can be uploaded or created through endpoints
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chainConfig := new(BlockchainConfig)
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if err := json.Unmarshal(b, chainConfig); err != nil {
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return nil, err
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}
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return chainConfig, nil
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}
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