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https://github.com/nspcc-dev/neo-go.git
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80 lines
2.3 KiB
Go
80 lines
2.3 KiB
Go
package core
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import (
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"github.com/CityOfZion/neo-go/pkg/core/storage"
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"github.com/CityOfZion/neo-go/pkg/io"
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"github.com/CityOfZion/neo-go/pkg/util"
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"github.com/CityOfZion/neo-go/pkg/vm"
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"github.com/pkg/errors"
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)
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// NotificationEvent is a tuple of scripthash that emitted the StackItem as a
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// notification and that item itself.
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type NotificationEvent struct {
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ScriptHash util.Uint160
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Item vm.StackItem
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}
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// AppExecResult represent the result of the script execution, gathering together
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// all resulting notifications, state, stack and other metadata.
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type AppExecResult struct {
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TxHash util.Uint256
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Trigger byte
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VMState string
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GasConsumed util.Fixed8
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Stack string // JSON
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Events []NotificationEvent
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}
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// putAppExecResultIntoStore puts given application execution result into the
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// given store.
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func putAppExecResultIntoStore(s storage.Store, aer *AppExecResult) error {
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buf := io.NewBufBinWriter()
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aer.EncodeBinary(buf.BinWriter)
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if buf.Err != nil {
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return buf.Err
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}
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key := storage.AppendPrefix(storage.STNotification, aer.TxHash.Bytes())
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return s.Put(key, buf.Bytes())
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}
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// getAppExecResultFromStore gets application execution result from the
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// given store.
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func getAppExecResultFromStore(s storage.Store, hash util.Uint256) (*AppExecResult, error) {
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aer := &AppExecResult{}
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key := storage.AppendPrefix(storage.STNotification, hash.Bytes())
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if b, err := s.Get(key); err == nil {
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r := io.NewBinReaderFromBuf(b)
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aer.DecodeBinary(r)
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if r.Err != nil {
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return nil, errors.Wrap(r.Err, "decoding failure:")
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}
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} else {
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return nil, err
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}
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return aer, nil
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}
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// EncodeBinary implements the Serializable interface.
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func (ne *NotificationEvent) EncodeBinary(w *io.BinWriter) {
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w.WriteLE(ne.ScriptHash)
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vm.EncodeBinaryStackItem(ne.Item, w)
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}
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// DecodeBinary implements the Serializable interface.
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func (ne *NotificationEvent) DecodeBinary(r *io.BinReader) {
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r.ReadLE(&ne.ScriptHash)
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ne.Item = vm.DecodeBinaryStackItem(r)
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}
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// EncodeBinary implements the Serializable interface.
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func (aer *AppExecResult) EncodeBinary(w *io.BinWriter) {
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w.WriteLE(aer.TxHash)
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w.WriteArray(aer.Events)
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}
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// DecodeBinary implements the Serializable interface.
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func (aer *AppExecResult) DecodeBinary(r *io.BinReader) {
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r.ReadLE(&aer.TxHash)
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r.ReadArray(&aer.Events)
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}
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