Copy queue statistics into statistics tlv
int gnet_stats_copy_queue(struct gnet_dump * d, struct gnet_stats_queue * q);
d
dumping handle
q
queue statistics
Appends the queue statistics to the top level TLV created by gnet_stats_start_copy.
Returns 0 on success or -1 with the statistic lock released if the room in the socket buffer was not sufficient.