Enum ParamSetValue 

pub enum ParamSetValue {
    Value {
        reason: usize,
        addr: i32,
        value: ParamValue,
    },
    UInt32Digital {
        reason: usize,
        addr: i32,
        value: u32,
        mask: u32,
        interrupt_mask: u32,
    },
    Status {
        reason: usize,
        addr: i32,
        status: AsynStatus,
        alarm_status: u16,
        alarm_severity: u16,
    },
}

A param value to set directly in the store (no writeInt32/on_param_change). Mirrors C ADCore’s setIntegerParam/setDoubleParam.

The value is a ParamValue, not one variant per type: this carrier used to enumerate its own subset of the parameter types (Int32/Float64/Octet/ Int32Array/Float64Array/UInt32Digital), so a driver thread pushing any other supported type — Int64, Int8Array, Int16Array, Int64Array, Float32Array, Enum, GenericPointer — simply had no variant to put it in. Carrying the store’s own value type means the two type sets cannot drift apart again: the actor applies it through the single crate::param::ParamList::set_value dispatch, whose exhaustive match makes a new ParamValue variant a compile error rather than an update that never arrives.

Variants

Value

Set a parameter of any type (C setIntegerParam / setDoubleParam / setStringParam / doCallbacksXxxArray …).

Fields

reason: usize

addr: i32

value: ParamValue

UInt32Digital

asynUInt32Digital masked set — C setUIntDigitalParam(reason, value, mask, interruptMask), whose write mask and forced-callback mask a plain Self::Value has no room for.

Fields

reason: usize

addr: i32

value: u32

mask: u32

interrupt_mask: u32

Bits to force into the I/O Intr callback mask even when the stored value is unchanged (C setUIntDigitalParam(.., interruptMask)); 0 for a plain value set.

Status

C setParamStatus / setParamAlarmStatus / setParamAlarmSeverity from a background thread — the alarm-push half of the C pattern lock(); setParamStatus(..); callParamCallbacks(); unlock(). The value is untouched; a status/alarm transition alone marks the param changed so the flush delivers it (paramVal.cpp:71-104), and the devEpics fill-in maps a non-Success status to the EPICS alarm (asynDisconnected → COMM/INVALID) when alarm_status/alarm_severity are left 0 (asynEpicsUtils.c:238-265).

Fields

reason: usize

addr: i32

status: AsynStatus

alarm_status: u16

alarm_severity: u16

Implementations

impl ParamSetValue

pub fn new(reason: usize, addr: i32, value: ParamValue) -> Self

Set reason at addr to value — any parameter type.

pub fn uint32_digital( reason: usize, addr: i32, value: u32, mask: u32, interrupt_mask: u32, ) -> Self

C setUIntDigitalParam: store value & mask, and force interrupt_mask bits into the callback mask even when the stored value is unchanged.

pub fn status( reason: usize, addr: i32, status: AsynStatus, alarm_status: u16, alarm_severity: u16, ) -> Self

C setParamStatus(list, index, status) plus the alarm pair: set the transport status and EPICS alarm without touching the value. Pass alarm_status/alarm_severity 0 to let the record-side fill-in map status itself (the C-normal path).

pub fn addr(&self) -> i32

The address list this update lands in — the list whose changed flags a later callParamCallbacks has to consume for it to reach a record.

Trait Implementations

impl Clone for ParamSetValue

fn clone(&self) -> ParamSetValue

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ParamSetValue

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

Formats the value using the given formatter.