+class Delay_Manager
+{
+ var $delta;
+ var $lastckeck;
+ var $triglevel;
+
+ function Delay_Manager($triglevel)
+ {
+ $this->triglevel = $triglevel;
+ $this->delta = array();
+ $this->lastcheck = 0;
+ }
+
+ function delta_get($curtime)
+ {
+ // clean too old delta items
+ for ($i = 0 ; $i < count($this->delta) ; $i++) {
+ if ($this->delta[$i][0] < $curtime) {
+ array_splice($this->delta, $i, 1);
+ $i--;
+ }
+ }
+
+ // add new delta items if delay exceeded $this->triglevel sec
+ if ($curtime > $this->lastcheck + $this->triglevel && $curtime < $this->lastcheck + 1200.0) {
+ $delta = $curtime - $this->lastcheck - $this->triglevel;
+ array_push($this->delta, array($curtime + $delta , $delta));
+ // fprintf(STDERR, "DELTA: add new delta [%f] [%f] [%f]\n", $this->triglevel, $curtime + $delta, $delta);
+ }
+
+ // extract the maximum valid delta
+ $delta_max = 0.0;
+ for ($i = 0 ; $i < count($this->delta) ; $i++) {
+ $delta_cur = $this->delta[$i][1];
+ if ($delta_max < $delta_cur)
+ $delta_max = $delta_cur;
+ }