expiry 3

public text v1 · immutable

#140

·published 2004-05-02 23:21 UTC

/* guard_limit must be larger than guard_secs */
/* guard_min must be > 1 */
#define EXPIRY_GUARD_SECS  15
#define EXPIRY_GUARD_MIN   3
#define EXPIRY_GUARD_LIMIT 30
#define EXPIRY_GUARD_PCT   0.2

if(expires <= EXPIRY_GUARD_MIN)
  expires = 1;
else
  if(expires < EXPIRY_GUARD_LIMIT)
    expires -= MAX( (expires * EXPIRY_GUARD_PCT), EXPIRY_GUARD_MIN - 1 );
  else
    expires -= EXPIRY_GUARD_SECS;