In the G-WAN KV options, KV_INCR_KEY will use the 1st field as the primary key.
That means there is a function which increments atomically already built in the G-WAN core to make this primary index work.
It would be good to make this function opened to be used by servlets, i.e. included in gwan.h.
By doing so, ANSI C newbies like me could benefit from it.
