s_mysql_group_replication_message_service_send Struct Reference

A service that sends content agnostic messages from a member to the group. More...

#include <group_replication_message_service.h>

Public Attributes
mysql_service_status_t(*	send )(const char *tag, const unsigned char *payload, const size_t payload_length)
	This function SHALL be called whenever the caller wants to send an agnostic messages to the group replication stream. More...

Detailed Description

A service that sends content agnostic messages from a member to the group.

This only works if the component is on a server with group replication running and the member state is ONLINE. If server isn't ONLINE message won't be deliver.

After message sent to all members of the group, all components that have registered group_replication_message_service_recv service will be notified.

SERVICE_TYPE(registry) *plugin_registry = mysql_plugin_registry_acquire();
my_service<SERVICE_TYPE(group_replication_message_service_send)> svc(
    "group_replication_message_service_send", plugin_registry);
 
if (svc.is_valid()) {
  bool error = svc->send("tag", "payload", sizeof("payload"));
}

Member Data Documentation

send

mysql_service_status_t(* s_mysql_group_replication_message_service_send::send) (const char *tag, const unsigned char *payload, const size_t payload_length)

This function SHALL be called whenever the caller wants to send an agnostic messages to the group replication stream.

Parameters

[in]	tag	tag identifies message
[in]	payload	data to be deliver
[in]	payload_length	size of data

Returns

false success, true on failure. Failure can happen if Group Replication status isn't ONLINE or RECOVERING or a communication failure occurs.

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

• include/mysql/components/services/group_replication_message_service.h