TrueCloudLab/neoneo-go
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core/rpc: add continue flag to iterating functions

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Most of the time we don't need to get all transfers from the DB and
deserialize them.
This commit is contained in:
Roman Khimov 2020-09-08 15:29:07 +03:00
parent 373c669c6a
commit e4b52d3947
6 changed files with 29 additions and 19 deletions
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15
pkg/rpc/server/server.go
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@ -599,14 +599,17 @@ func (s *Server) getNEP5Transfers(ps request.Params) (interface{}, *response.Err
Sent: []result.NEP5Transfer{},
}
cache := make(map[int32]decimals)
err = s.chain.ForEachNEP5Transfer(u, func(tr *state.NEP5Transfer) error {
if tr.Timestamp < start || tr.Timestamp > end ||
err = s.chain.ForEachNEP5Transfer(u, func(tr *state.NEP5Transfer) (bool, error) {
if tr.Timestamp > end {
return true, nil
}
if tr.Timestamp < start ||
(limit != 0 && (len(bs.Received)+len(bs.Sent) >= limit)) {
return nil
return false, nil
}
d, err := s.getDecimals(tr.Asset, cache)
if err != nil {
return nil
return false, err
}
transfer := result.NEP5Transfer{
Timestamp: tr.Timestamp,
@ -620,7 +623,7 @@ func (s *Server) getNEP5Transfers(ps request.Params) (interface{}, *response.Err
transfer.Address = address.Uint160ToString(tr.From)
}
bs.Received = append(bs.Received, transfer)
return nil
return true, nil
}
transfer.Amount = amountToString(new(big.Int).Neg(&tr.Amount), d.Value)
@ -628,7 +631,7 @@ func (s *Server) getNEP5Transfers(ps request.Params) (interface{}, *response.Err
transfer.Address = address.Uint160ToString(tr.To)
}
bs.Sent = append(bs.Sent, transfer)
return nil
return true, nil
})
if err != nil {
return nil, response.NewInternalServerError("invalid NEP5 transfer log", err)