NAME

SYNOPSIS

int
ratecheck(struct timeval *lasttime, struct timeval *mininterval);

int
ppsratecheck(struct timeval *lasttime, int *curpps, int maxpps);

DESCRIPTION

The ratecheck function compares the current time to the value pointed to by lasttime. If the difference is equal to or greater than mininterval, it returns a non-zero value and updates lasttime to the current time. Otherwise, it returns zero.

The ppsratecheck function first compares the current time to lasttime. If at least a full second has passed, the value pointed to by the curpps argument is reset to 1 and lasttime is updated to the current time. Otherwise, curpps is incremented and lasttime is left untouched. In either case, ppsratecheck returns a non-zero value if and only if the updated curpps is less than or equal to maxpps or maxpps is negative.

SEE ALSO

HISTORY