asrt_param_client Struct Reference

Param client module — PARAM channel, reactor side. More...

#include <param.h>

Public Attributes
uint8_t *	cache_buf
uint32_t	cache_capacity
uint32_t	cache_len
asrt_flat_id	cache_next_sibling
struct asrt_param_find_by_key_msg	find_by_key_msg
struct asrt_node	node
struct asrt_param_query *	pending_query
struct asrt_u8d5msg	query_msg
int	ready
struct asrt_u8d5msg	ready_ack_msg
asrt_flat_id	root_id
enum asrt_param_client_state	state
union {
struct {
uint8_t   error_code
asrt_flat_id   node_id
}   error
asrt_flat_id   root_id
}	state_data
uint32_t	timeout

Detailed Description

Param client module — PARAM channel, reactor side.

Once the controller sends READY (advertising a root node ID), the client can issue QUERY and FIND_BY_KEY requests. Responses are cached in an internal buffer; callbacks fire when the response has been decoded.

Repeated queries for the same node are served directly from the cache without a wire round-trip. The cache holds the most recent RESPONSE payload; a query hits the cache when the requested node_id matches one of the entries already decoded there.

The cache is valid for the lifetime of one READY session. When a new READY arrives (e.g. at the start of each test run) the root_id is updated and the cache is cleared, so the first query for any node in the new tree always goes over the wire.

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

• asrtr/param.h