Module opc 

OPC DA diagnostic routes: GET /api/opc/servers, GET /api/opc/capabilities, GET /api/opc/browse, DELETE /api/opc/browse/sessions/:id, GET /api/opc/search, GET /api/opc/read, and the indexed-search status/refresh/control routes – back the GUI’s server dropdown, typed tag-tree browser, namespace search, index management, and connection test.

Read-only diagnostics remain independent of crate::state::AppState::active_run, and every OPC operation is bounded by an explicit [OPC_QUERY_TIMEOUT_SECS] timeout (see that constant’s doc comment for why one is needed at all). Index management does not acquire the active-tune lock either: starting or controlling a gateway inventory must not block, or be blocked by, an in-flight tune.

Structs

OpcBrowseNodeResponse

One node returned by GET /api/opc/browse. node_key and item_id must remain separate: the former is an opaque navigation key, while the latter is the exact selectable OPC DA ItemID and may contain namespace punctuation with no relationship to hierarchy.

OpcBrowseQuery

Query parameters for GET /api/opc/browse.

OpcBrowseResponse

OpcCapabilitiesResponse

OpcCloseBrowseSessionResponse

OpcIndexSchedulerResponse

OpcIndexedSearchMatchResponse

OpcIndexedSearchProgressResponse

OpcReadQuery

Query parameters for GET /api/opc/read.

OpcReadResponse

Response body of GET /api/opc/read.

OpcSearchIndexAutoRefreshQuery

Query parameters for POST /api/opc/search-index/auto-refresh.

OpcSearchIndexControlQuery

Query parameters for POST /api/opc/search-index/control.

OpcSearchIndexQuery

Query the gateway-owned persistent namespace index. This is a bounded unary request and never falls back to the legacy live traversal search.

OpcSearchIndexRefreshQuery

Query parameters for POST /api/opc/search-index/refresh.

OpcSearchIndexResponse

OpcSearchIndexServerQuery

Query parameters shared by indexed-search status and search-index actions.

OpcSearchIndexStatusResponse

OpcSearchQuery

Query parameters for the progressive GET /api/opc/search SSE endpoint.

OpcServerQuery

Query parameters for GET /api/opc/capabilities.

OpcServersQuery

Query parameters for GET /api/opc/servers.

OpcServersResponse

Response body of GET /api/opc/servers.

Enums

OpcBrowseNodeKind

Functions

router