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error.go
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error.go
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package bmwire
import (
"fmt"
)
// MessageError describes an issue with a message.
// An example of some potential issues are messages from the wrong bitmessage
// network, invalid commands, mismatched checksums, and exceeding max payloads.
//
// This provides a mechanism for the caller to type assert the error to
// differentiate between general io errors such as io.EOF and issues that
// resulted from malformed messages.
type MessageError struct {
Func string // Function name
Description string // Human readable description of the issue
}
// Error satisfies the error interface and prints human-readable errors.
func (e *MessageError) Error() string {
if e.Func != "" {
return fmt.Sprintf("%v: %v", e.Func, e.Description)
}
return e.Description
}
// messageError creates an error for the given function and description.
func messageError(f string, desc string) *MessageError {
return &MessageError{Func: f, Description: desc}
}