gnet_stats_copy_basic - copy basic statistics into statistic TLV
int gnet_stats_copy_basic (struct gnet_dump * d, struct gnet_stats_basic * b);
d dumping handle b basic statistics
Appends the basic 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.