Method Query

sqlchain/chain.go:1025–1034

Query queries req from local chain state and returns the query results in resp.

(
	req *types.Request, isLeader bool)

// Query queries req from local chain state and returns the query results in resp.
func (c *Chain) Query(
	req *types.Request, isLeader bool) (tracker *x.QueryTracker, resp *types.Response, err error,
) {
	// TODO(leventeliu): we're using an external context passed by request. Make sure that
	// cancelling will be propagated to this context before chain instance stops.
	// update metrics
	c.expVars.Get(mwMinerChainRequestsCount).(mw.Metric).Add(1)

	return c.st.QueryWithContext(req.GetContext(), req, isLeader)
}

// AddResponse addes a response to the ackIndex, awaiting for acknowledgement.
func (c *Chain) AddResponse(resp *types.SignedResponseHeader) (err error) {