u just press ctrl-c or kill cpuminer/minerd and if u wish to mine theres cryptopools.com dgc,tag and arg pool's 0 fee PPS with a block finder bonus, u wont find a better pool for those coins anywhere
nice work hash engineering! hopefully this means we can get numerous mobile options around for coins! the mods you've made is one of the reasons i switched to electrum for the dgc wallet since that is coded in the same manner