Type Alias IpcError 

pub type IpcError = Error;

👎Deprecated since 0.7.0:

renamed to Error

Renamed to error::Error.

Aliased Type

pub enum IpcError {
    Io(Error),
    PublisherDead,
    InvalidRegion(String),
    PoolExhausted,
    DataTooLarge {
        size: usize,
        capacity: usize,
    },
    PinnedReadersActive {
        count: u32,
        topic_idx: u32,
    },
    ClockError,
    TopicNotFound(String),
    MaxTopicsReached,
    UriTooLong {
        len: usize,
        max: usize,
    },
    LockContention(String),
    AlignmentError {
        align: usize,
        max: usize,
    },
    SegmentNameInvalid(String),
    HandleMismatch,
    RegionSizeOverflow,
    RegionCorrupted(String),
}

Variants

Io(Error)

An I/O error occurred on the underlying file or mmap.

PublisherDead

The shared-memory publisher has stopped updating its heartbeat.

InvalidRegion(String)

The shared-memory region has invalid magic, version, or metadata.

PoolExhausted

The block pool is exhausted (all blocks are in use by subscribers).

DataTooLarge

Data exceeds the block’s data capacity.

Fields

size: usize

Attempted write size.

capacity: usize

Block data capacity.

PinnedReadersActive

A subscriber holds a PinnedSample, preventing the publisher from writing.

Fields

count: u32

Number of active readers.

topic_idx: u32

Topic index.

ClockError

The system clock is before UNIX epoch (NTP jump, VM restore).

TopicNotFound(String)

A subscribe() call could not find the requested URI in the topic table.

MaxTopicsReached

A register() call ran out of topic slots.

UriTooLong

The topic URI exceeds the maximum allowed length.

Fields

len: usize

Actual URI length.

max: usize

Maximum allowed length.

LockContention(String)

An exclusive lock is already held on the region (another publisher is active).

AlignmentError

A Pod type’s alignment exceeds the block data alignment.

Fields

align: usize

Actual type alignment.

max: usize

Maximum supported alignment.

SegmentNameInvalid(String)

The segment name is invalid (empty, contains path separators, null bytes, or ..).

HandleMismatch

A Topic was used with a different Publisher than the one that created it.

RegionSizeOverflow

Checked arithmetic overflow during region size computation.

RegionCorrupted(String)

The shared-memory region’s free-list is corrupted (out-of-bounds block index).