SECONDS
diff = tv.tv_sec*1000 + tv.tv_usec/1000 - SECONDS * 1000;
tv.tv_sec = SECONDS;
cfg.maxtime = SECONDS;
: "Doing %s for %ds on %d size blocks: ", s, SECONDS, length);
alarm(SECONDS);
#define MINUTES (SECONDS * 60)
multiplier = SECONDS;