Module spvd_encode 

PVD (pvData) Encoding Helpers

Minimal encoder for NTScalar introspection and value updates.

Functions

decode_pv_request_fields

Parse a pvRequest structure from the INIT body bytes and return the list of requested top-level field names.

encode_decoded_value

Encode a DecodedValue back to PVA wire bytes.

encode_nt_enum_full

encode_nt_ndarray_full

encode_nt_payload_bitset

encode_nt_payload_bitset_parts

encode_nt_payload_filtered

Encode only the fields of an NtPayload whose names appear in desc. The bitset and value bytes are computed against the filtered descriptor so that a client that received the filtered INIT descriptor will decode them correctly.

encode_nt_payload_full

encode_nt_scalar_array_full

encode_nt_scalar_bitset

encode_nt_scalar_bitset_parts

encode_nt_scalar_full

encode_nt_table_full

encode_pv_request

Build a pvRequest structure for the given top-level field names.

encode_pv_value

Encode a PvValue tree to PVA wire bytes (values only, no descriptor).

encode_size_pvd

encode_string_pvd

encode_structure_desc

filter_structure_desc

Filter a StructureDesc to include only the listed top-level field names. Unknown names are silently ignored. If requested is empty the original descriptor is returned unchanged.

nt_enum_desc

nt_ndarray_desc

nt_payload_desc

nt_scalar_array_desc

nt_scalar_desc

nt_table_desc

pv_value_desc

Build a StructureDesc from a PvValue::Structure.