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CpTarget

Struct CpTarget 

Source
pub struct CpTarget {
    pub record: String,
    pub passive_only: bool,
}
Expand description

Internal state of PvDatabase.

§Invariant — alias-aware lookup (epics-base PR #336)

MUST: every record-name lookup that originates from an external API (CA/PVA server, link processing, iocsh, bridge providers) MUST go through PvDatabase::get_record / PvDatabase::find_entry / PvDatabase::has_name, never inner.records.read().await.get(...) directly.

MUST NOT: a function that takes an arbitrary record-name &str and reads inner.records directly, unless one of:

  • the function is itself an alias-management primitive (add_record, remove_record, add_alias, find_entry_no_resolve, has_name_no_resolve, get_record_no_resolve, all_record_names), OR
  • the name has been normalised to canonical earlier in the same scope (the let canonical_owned; let name: &str = ... pattern in process_record_with_links_inner / complete_async_record_inner / put_record_field_from_ca / put_pv).

Owner/Gate: PvDatabase::get_record (alias-aware path).

New code that adds a record-name entry point should call get_record first OR run the canonical-normalisation snippet at function entry. Direct inner.records access is reserved for the alias-management primitives listed above. One CP/CPP edge in the PvDatabaseInner::cp_links index: the record to (re)process when the source record changes.

passive_only distinguishes CPP from CP. C adds the CA_DBPROCESS action for a CP link unconditionally, but for a CPP link only when the link-holding record’s SCAN is Passive (dbCa.c:854,994,1072). CP edges clear the flag; CPP edges set it, and dispatch_cp_targets honours it.

Fields§

§record: String§passive_only: bool

Trait Implementations§

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impl Clone for CpTarget

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fn clone(&self) -> CpTarget

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for CpTarget

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

Formats the value using the given formatter. Read more

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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