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package core
import (
cm "github.com/tendermint/tendermint/consensus"
tmmath "github.com/tendermint/tendermint/libs/math"
ctypes "github.com/tendermint/tendermint/rpc/core/types"
rpctypes "github.com/tendermint/tendermint/rpc/jsonrpc/types"
sm "github.com/tendermint/tendermint/state"
"github.com/tendermint/tendermint/types"
)
// Validators gets the validator set at the given block height.
//
// If no height is provided, it will fetch the latest validator set. Note the
// validators are sorted by their voting power - this is the canonical order
// for the validators in the set as used in computing their Merkle root.
//
// More: https://docs.tendermint.com/master/rpc/#/Info/validators
func Validators(ctx *rpctypes.Context, heightPtr *int64, pagePtr, perPagePtr *int) (*ctypes.ResultValidators, error) {
// The latest validator that we know is the NextValidator of the last block.
height, err := getHeight(latestUncommittedHeight(), heightPtr)
if err != nil {
return nil, err
}
validators, err := sm.LoadValidators(env.StateDB, height)
if err != nil {
return nil, err
}
totalCount := len(validators.Validators)
perPage := validatePerPage(perPagePtr)
page, err := validatePage(pagePtr, perPage, totalCount)
if err != nil {
return nil, err
}
skipCount := validateSkipCount(page, perPage)
v := validators.Validators[skipCount : skipCount+tmmath.MinInt(perPage, totalCount-skipCount)]
return &ctypes.ResultValidators{
BlockHeight: height,
Validators: v,
Count: len(v),
Total: totalCount}, nil
}
// DumpConsensusState dumps consensus state.
// UNSTABLE
// More: https://docs.tendermint.com/master/rpc/#/Info/dump_consensus_state
func DumpConsensusState(ctx *rpctypes.Context) (*ctypes.ResultDumpConsensusState, error) {
// Get Peer consensus states.
peers := env.P2PPeers.Peers().List()
peerStates := make([]ctypes.PeerStateInfo, len(peers))
for i, peer := range peers {
peerState, ok := peer.Get(types.PeerStateKey).(*cm.PeerState)
if !ok { // peer does not have a state yet
continue
}
peerStateJSON, err := peerState.ToJSON()
if err != nil {
return nil, err
}
peerStates[i] = ctypes.PeerStateInfo{
// Peer basic info.
NodeAddress: peer.SocketAddr().String(),
// Peer consensus state.
PeerState: peerStateJSON,
}
}
// Get self round state.
roundState, err := env.ConsensusState.GetRoundStateJSON()
if err != nil {
return nil, err
}
return &ctypes.ResultDumpConsensusState{
RoundState: roundState,
Peers: peerStates}, nil
}
// ConsensusState returns a concise summary of the consensus state.
// UNSTABLE
// More: https://docs.tendermint.com/master/rpc/#/Info/consensus_state
func ConsensusState(ctx *rpctypes.Context) (*ctypes.ResultConsensusState, error) {
// Get self round state.
bz, err := env.ConsensusState.GetRoundStateSimpleJSON()
return &ctypes.ResultConsensusState{RoundState: bz}, err
}
// ConsensusParams gets the consensus parameters at the given block height.
// If no height is provided, it will fetch the latest consensus params.
// More: https://docs.tendermint.com/master/rpc/#/Info/consensus_params
func ConsensusParams(ctx *rpctypes.Context, heightPtr *int64) (*ctypes.ResultConsensusParams, error) {
// The latest consensus params that we know is the consensus params after the
// last block.
height, err := getHeight(latestUncommittedHeight(), heightPtr)
if err != nil {
return nil, err
}
consensusParams, err := sm.LoadConsensusParams(env.StateDB, height)
if err != nil {
return nil, err
}
return &ctypes.ResultConsensusParams{
BlockHeight: height,
ConsensusParams: consensusParams}, nil
}