frostfs-node/pkg/innerring/invoke/neofs.go

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package invoke
import (
"github.com/nspcc-dev/neo-go/pkg/util"
"github.com/nspcc-dev/neofs-node/pkg/morph/client"
)
type (
// ChequeParams for CashOutCheque invocation.
ChequeParams struct {
ID []byte
Amount int64 // Fixed8
User util.Uint160
LockAccount util.Uint160
}
)
const (
// Extra SysFee for contract invocations. Contracts execute inner ring
// invocations in two steps: collection and execution. At collection
// step contract waits for (2\3*n + 1) invocations, and then in execution
// stage contract actually makes changes in the contract storage. SysFee
// for invocation calculated based on testinvoke which happens at collection
// stage. Therefore client has to provide some extra SysFee to operate at
// execution stage. Otherwise invocation will fail due to gas limit.
extraFee = 2_0000_0000 // 2.0 Fixed8 gas
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chequeMethod = "cheque"
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)
// CashOutCheque invokes Cheque method.
func CashOutCheque(cli *client.Client, con util.Uint160, p *ChequeParams) error {
if cli == nil {
return client.ErrNilClient
}
return cli.Invoke(con, extraFee, chequeMethod,
p.ID,
p.User.BytesBE(),
p.Amount,
p.LockAccount.BytesBE(),
)
}