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SourceVuESP-IDF Framework and Examplesrestful_server sample_udp_join_group()

_udp_join_group() function

Low level UDP Multicast membership control

Syntax

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Summary

Declaration

from mdns_networking_lwip.c:87

static esp_err_t _udp_join_group(mdns_if_t if_inx, mdns_ip_protocol_t ip_protocol, bool join);

Arguments

Argument

if_inx

ip_protocol

join

References

Code

Location

Referrer

static esp_err_t _udp_join_group(mdns_if_t if_inx, mdns_ip_protocol_t ip_protocol, bool join)

mdns_networking_lwip.c:87

_udp_join_group(tcpip_if, ip_protocol, false);

mdns_networking_lwip.c:245

_udp_pcb_deinit()

esp_err_t err = _udp_join_group(tcpip_if, ip_protocol, true);

mdns_networking_lwip.c:261

_udp_pcb_init()

Call Tree

_udp_join_group() is called by 2 functions and calls 8 functions:

_udp_pcb_deinit()

_udp_pcb_init()

_udp_join_group()

__assert_func()

esp_netif_is_netif_up()

esp_netif_get_netif_impl()

mld6_joingroup_netif()

mld6_leavegroup_netif()

_mdns_get_esp_netif()

igmp_joingroup_netif()

igmp_leavegroup_netif()

Data Use

_udp_join_group() reads 5 variables and writes 1 variable:

lwip_ip_addr_type::IPADDR_TYPE_V6

ip_addr::::ip6

ip_addr::u_addr

mdns_ip_protocol_t::MDNS_IP_PROTOCOL_V4

mdns_ip_protocol_t::MDNS_IP_PROTOCOL_V6

_udp_join_group()

ip4_addr::addr

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