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108 lines
3.1 KiB
108 lines
3.1 KiB
package core
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import (
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"fmt"
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"time"
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ctypes "github.com/tendermint/tendermint/rpc/core/types"
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"github.com/tendermint/tendermint/types"
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tmsp "github.com/tendermint/tmsp/types"
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)
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//-----------------------------------------------------------------------------
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// NOTE: tx should be signed, but this is only checked at the app level (not by Tendermint!)
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// Returns right away, with no response
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func BroadcastTxAsync(tx types.Tx) (*ctypes.ResultBroadcastTx, error) {
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err := mempool.CheckTx(tx, nil)
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if err != nil {
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return nil, fmt.Errorf("Error broadcasting transaction: %v", err)
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}
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return &ctypes.ResultBroadcastTx{}, nil
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}
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// Returns with the response from CheckTx
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func BroadcastTxSync(tx types.Tx) (*ctypes.ResultBroadcastTx, error) {
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resCh := make(chan *tmsp.Response, 1)
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err := mempool.CheckTx(tx, func(res *tmsp.Response) {
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resCh <- res
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})
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if err != nil {
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return nil, fmt.Errorf("Error broadcasting transaction: %v", err)
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}
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res := <-resCh
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r := res.GetCheckTx()
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return &ctypes.ResultBroadcastTx{
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Code: r.Code,
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Data: r.Data,
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Log: r.Log,
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}, nil
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}
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// CONTRACT: only returns error if mempool.BroadcastTx errs (ie. problem with the app)
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// or if we timeout waiting for tx to commit.
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// If CheckTx or AppendTx fail, no error will be returned, but the returned result
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// will contain a non-OK TMSP code.
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func BroadcastTxCommit(tx types.Tx) (*ctypes.ResultBroadcastTxCommit, error) {
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// subscribe to tx being committed in block
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appendTxResCh := make(chan types.EventDataTx, 1)
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types.AddListenerForEvent(eventSwitch, "rpc", types.EventStringTx(tx), func(data types.TMEventData) {
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appendTxResCh <- data.(types.EventDataTx)
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})
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// broadcast the tx and register checktx callback
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checkTxResCh := make(chan *tmsp.Response, 1)
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err := mempool.CheckTx(tx, func(res *tmsp.Response) {
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checkTxResCh <- res
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})
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if err != nil {
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log.Error("err", "err", err)
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return nil, fmt.Errorf("Error broadcasting transaction: %v", err)
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}
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checkTxRes := <-checkTxResCh
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checkTxR := checkTxRes.GetCheckTx()
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if checkTxR.Code != tmsp.CodeType_OK {
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// CheckTx failed!
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return &ctypes.ResultBroadcastTxCommit{
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CheckTx: checkTxR,
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AppendTx: nil,
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}, nil
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}
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// Wait for the tx to be included in a block,
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// timeout after something reasonable.
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// TODO: configureable?
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timer := time.NewTimer(60 * 2 * time.Second)
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select {
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case appendTxRes := <-appendTxResCh:
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// The tx was included in a block.
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appendTxR := &tmsp.ResponseAppendTx{
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Code: appendTxRes.Code,
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Data: appendTxRes.Data,
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Log: appendTxRes.Log,
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}
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log.Error("appendtx passed ", "r", appendTxR)
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return &ctypes.ResultBroadcastTxCommit{
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CheckTx: checkTxR,
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AppendTx: appendTxR,
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}, nil
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case <-timer.C:
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log.Error("failed to include tx")
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return &ctypes.ResultBroadcastTxCommit{
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CheckTx: checkTxR,
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AppendTx: nil,
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}, fmt.Errorf("Timed out waiting for transaction to be included in a block")
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}
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panic("Should never happen!")
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}
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func UnconfirmedTxs() (*ctypes.ResultUnconfirmedTxs, error) {
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txs := mempool.Reap(-1)
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return &ctypes.ResultUnconfirmedTxs{len(txs), txs}, nil
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}
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func NumUnconfirmedTxs() (*ctypes.ResultUnconfirmedTxs, error) {
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return &ctypes.ResultUnconfirmedTxs{N: mempool.Size()}, nil
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}
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