Struct ShmLocator 

pub struct ShmLocator {
    pub hostname_hash: u32,
    pub uid: u32,
    pub slot_count: u32,
    pub slot_size: u32,
    pub segment_path: String,
}

SHM-Locator: alle Daten die ein Same-Host-Reader braucht um zu einem Writer-SHM-Segment zu attachen.

Fields

hostname_hash: u32

FNV-1a Hash des Hostnamens. Same-Host-Match-Anker.

uid: u32

POSIX-UID des Writer-Prozesses. Verhindert Cross-User-Attaches auf shared Hosts.

slot_count: u32

Anzahl Slots im Segment.

slot_size: u32

Slot-Total-Size (Header + Daten + Padding).

segment_path: String

SHM-Segment-Pfad (z.B. /zddspub_<entity_id>).

Implementations

impl ShmLocator

pub fn to_bytes_le(&self) -> Result<Vec<u8>, LocatorError>

Encoded little-endian. Layout siehe Modul-Doku.

Errors

PathTooLong wenn segment_path.len() > 256.

pub fn from_bytes_le(bytes: &[u8]) -> Result<Self, LocatorError>

Decoded aus little-endian-Bytes.

Errors

TruncatedHeader, TruncatedString, InvalidUtf8, PathTooLong.

Trait Implementations

impl Clone for ShmLocator

fn clone(&self) -> ShmLocator

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ShmLocator

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

Formats the value using the given formatter.

impl PartialEq for ShmLocator

fn eq(&self, other: &ShmLocator) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for ShmLocator

impl StructuralPartialEq for ShmLocator