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SourceVuESP-IDF Framework and Examplesesp_local_ctrl samplemdns_query_async_new()

mdns_query_async_new() function

Query mDNS for host or service asynchronousely. Search has to be tested for progress and deleted manually!

Syntax

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Summary

Declaration

Definition

from mdns.h:688

mdns_search_once_t *mdns_query_async_new(const char *name, const char *service_type, const char *proto, uint16_t type, uint32_t timeout, size_t max_results, mdns_query_notify_t notifier);

Implemented in mdns.c:6824

Arguments

Argument

Description

name

service instance or host name (NULL for PTR queries)

service_type

service type (_http, _arduino, _ftp etc.) (NULL for host queries)

proto

service protocol (_tcp, _udp, etc.) (NULL for host queries)

type

type of query (MDNS_TYPE_*)

timeout

time in milliseconds during which mDNS query is active

max_results

maximum results to be collected

notifier

Notification function to be called when the result is ready, can be NULL

Return value

mdns_search_once_s pointer to new search object if query initiated successfully. NULL otherwise.

References

Code

Location

mdns_search_once_t *mdns_query_async_new(const char *name, const char *service, const char *proto, uint16_t type,

mdns.c:6824

mdns_search_once_t *mdns_query_async_new(const char *name, const char *service_type, const char *proto, uint16_t type,

mdns.h:688

Call Tree

mdns_query_async_new() calls 4 functions:

mdns_query_async_new()

_str_null_or_empty()

_mdns_search_free()

_mdns_search_init()

_mdns_send_search_action()

Data Use

mdns_query_async_new() reads 2 variables:

mdns_action_type_t::ACTION_SEARCH_ADD

_mdns_server

mdns_query_async_new()

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