Enum MmdbWriteError 

#[non_exhaustive]
pub enum MmdbWriteError {
    ZeroPrefix,
    FamilyMismatch,
    OverlappingNetwork,
    TooLarge,
    Io(Error),
}

Available on crate feature net only.

Error returned while building or serialising a MaxMind DB.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

ZeroPrefix

A zero-length prefix (/0) was supplied; the builder requires at least one bit.

FamilyMismatch

The IP family of the inserted network does not match the database’s ip_version.

OverlappingNetwork

The network overlaps a previously inserted one (the builder does not split existing leaves).

TooLarge

The database is too large to address. A 32-bit search-tree record encodes a leaf’s data pointer as node_count + 16 + data_offset, which must fit in a u32 — capping the combined tree + data image at ~4 GiB.

Io(Error)

Failed to write the serialised database to a sink.

Trait Implementations

impl Debug for MmdbWriteError

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Display for MmdbWriteError

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Error for MmdbWriteError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl From<Error> for MmdbWriteError

fn from(err: Error) -> MmdbWriteError

Converts to this type from the input type.