Active query state for a pending QUERY or FIND_BY_KEY request. More...

#include <param.h>

Public Attributes
union asrt_param_cb	cb

void *	cb_ptr

enum asrt_param_err_e	error_code
	Error code from the server, if any.

asrt_flat_value_type	expected_type
	Type filter; NONE means accept any type.

char const *	key
	Key of the returned node, valid until next query.

asrt_flat_id	next_sibling
	Next sibling ID (0 = none).

asrt_flat_id	node_id
	Node ID requested or returned.

uint32_t	start

Detailed Description

Active query state for a pending QUERY or FIND_BY_KEY request.

Because the param client is non-blocking, it cannot store the query parameters or the callback internally — doing so would limit the client to a single static query slot and complicate ownership. Instead, the caller allocates (or statically declares) an asrt_param_query, fills in the callback fields via one of the typed helpers, and passes it to asrt_param_client_query(). The client stores a pointer to this struct for the duration of the in-flight request and calls the callback from within asrt_chann_tick_successors() once the RESPONSE is decoded.

The struct must remain at a stable address and must not be reused for a second query until the callback for the first has fired (check with asrt_param_query_pending()).

The documentation for this struct was generated from the following file:

asrtr/param.h

Public Attributes

Detailed Description