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Error rewrites (#43)

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* pcap: reuse Frame memory

* slog: reduce heap allocations of addresses; also prevent heap alloc of dhcp options in pcap

* dns: heapless improvement; add StackAsync buffer for more heapless operation; start thinking of errors

* errors: begin standardise errors in lneto

* errors: finish standardization of errors

* fix merge issues

* add more lneto errors to rest of package

* format errors.go
This commit is contained in:
Pat Whittingslow
2026-02-28 20:18:27 +01:00
committed by GitHub
parent 3d0bc93cbe
commit fa5ba918bb
38 changed files with 272 additions and 322 deletions
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errors.go
+16 -21
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@@ -1,30 +1,25 @@
package lneto
// type ErrorPacketDrop struct {
// Message string
// }
// var genericErrPacketDrop = &ErrorPacketDrop{Message: ErrPacketDrop.Error()}
// // ErrGenericPacketDrop returns the generic packet drop error. It performs no allocations.
// func ErrGenericPacketDrop() error {
// return genericErrPacketDrop
// }
// func (err *ErrorPacketDrop) Error() string {
// return err.Message
// }
type errGeneric uint8
// Generic errors common to internet functioning.
const (
_ errGeneric = iota // non-initialized err
ErrBug // lneto-bug(use build tag "debugheaplog")
ErrPacketDrop // packet dropped
ErrBadCRC // incorrect checksum
ErrZeroSource // zero source(port/addr)
ErrZeroDestination // zero destination(port/addr)
_ errGeneric = iota // non-initialized err
ErrBug // lneto-bug(use build tag "debugheaplog")
ErrPacketDrop // packet dropped
ErrBadCRC // incorrect checksum
ErrZeroSource // zero source(port/addr)
ErrZeroDestination // zero destination(port/addr)
ErrShortBuffer // short buffer
ErrBufferFull // buffer full
ErrInvalidAddr // invalid address
ErrUnsupported // unsupported
ErrMismatch // mismatch
ErrMismatchLen // mismatched length
ErrInvalidConfig // invalid configuration
ErrInvalidField // invalid field
ErrInvalidLengthField // invalid length field
ErrExhausted // resource exhausted
)
func (err errGeneric) Error() string {