internal List <GroupInfo> ListGroups(string group, IntPtr timeoutMs)
{
IntPtr grplistPtr;
ErrorCode err = LibRdKafka.list_groups(handle, group, out grplistPtr, timeoutMs);
if (err == ErrorCode.NO_ERROR)
{
var list = Marshal.PtrToStructure <rd_kafka_group_list>(grplistPtr);
var groups = Enumerable.Range(0, list.group_cnt)
.Select(i => Marshal.PtrToStructure <rd_kafka_group_info>(
list.groups + i * Marshal.SizeOf <rd_kafka_group_info>()))
.Select(gi => new GroupInfo()
{
Broker = new BrokerMetadata()
{
BrokerId = gi.broker.id,
Host = gi.broker.host,
Port = gi.broker.port
},
Group = gi.group,
Error = gi.err,
State = gi.state,
ProtocolType = gi.protocol_type,
Protocol = gi.protocol,
Members = Enumerable.Range(0, gi.member_cnt)
.Select(j => Marshal.PtrToStructure <rd_kafka_group_member_info>(
gi.members + j * Marshal.SizeOf <rd_kafka_group_member_info>()))
.Select(mi => new GroupMemberInfo()
{
MemberId = mi.member_id,
ClientId = mi.client_id,
ClientHost = mi.client_host,
MemberMetadata = CopyBytes(mi.member_metadata,
mi.member_metadata_size),
MemberAssignment = CopyBytes(mi.member_assignment,
mi.member_assignment_size)
})
.ToList()
})
.ToList();
LibRdKafka.group_list_destroy(grplistPtr);
return(groups);
}
else
{
throw RdKafkaException.FromErr(err, "Failed to fetch group list");
}
}