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error.go
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error.go
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// Copyright (c) 2015-2023 The Decred developers
// Use of this source code is governed by an ISC
// license that can be found in the LICENSE file.
package mining
// ErrorKind identifies a kind of error. It has full support for errors.Is
// and errors.As, so the caller can directly check against an error kind
// when determining the reason for an error.
type ErrorKind string
// These constants are used to identify a specific RuleError.
const (
// ErrNotEnoughVoters indicates that there were not enough voters to
// build a block on top of HEAD.
ErrNotEnoughVoters = ErrorKind("ErrNotEnoughVoters")
// ErrGetTopBlock indicates that the current top block of the
// blockchain could not be obtained.
ErrGetTopBlock = ErrorKind("ErrGetTopBlock")
// ErrGettingDifficulty indicates that there was an error getting the
// PoW difficulty.
ErrGettingDifficulty = ErrorKind("ErrGettingDifficulty")
// ErrTransactionAppend indicates there was a problem adding a msgtx
// to a msgblock.
ErrTransactionAppend = ErrorKind("ErrTransactionAppend")
// ErrTicketExhaustion indicates that there will not be enough mature
// tickets by the end of the next ticket maturity period to progress the
// chain.
ErrTicketExhaustion = ErrorKind("ErrTicketExhaustion")
// ErrCheckConnectBlock indicates that a newly created block template
// failed blockchain.CheckConnectBlock.
ErrCheckConnectBlock = ErrorKind("ErrCheckConnectBlock")
// ErrFraudProofIndex indicates that there was an error finding the index
// for a fraud proof.
ErrFraudProofIndex = ErrorKind("ErrFraudProofIndex")
// ErrFetchTxStore indicates a transaction store failed to fetch.
ErrFetchTxStore = ErrorKind("ErrFetchTxStore")
// ErrCalcCommitmentRoot indicates that creating the header commitments and
// calculating the associated commitment root for a newly created block
// template failed.
ErrCalcCommitmentRoot = ErrorKind("ErrCalcCommitmentRoot")
// ErrGetTicketInfo indicates that ticket information could not be retreived
// in order to connect a transaction.
ErrGetTicketInfo = ErrorKind("ErrGetTicketInfo")
// ErrSerializeHeader indicates an attempt to serialize a block header failed.
ErrSerializeHeader = ErrorKind("ErrSerializeHeader")
)
// Error satisfies the error interface and prints human-readable errors.
func (e ErrorKind) Error() string {
return string(e)
}
// Error identifies a mining rule violation. It has full support for errors.Is
// and errors.As, so the caller can ascertain the specific reason for the error
// by checking the underlying error. It is used to indicate that processing of
// a block or transaction failed due to one of the many validation rules.
type Error struct {
Err error
Description string
}
// Error satisfies the error interface and prints human-readable errors.
func (e Error) Error() string {
return e.Description
}
// Unwrap returns the underlying wrapped error.
func (e Error) Unwrap() error {
return e.Err
}
// makeError creates an Error given a set of arguments.
func makeError(kind ErrorKind, desc string) Error {
return Error{Err: kind, Description: desc}
}