git.scottworley.com Git - tattlekey/blob - client/press.c

   1 #include "press.h"
   2
   3 static uint32_t next_send(press_t *s) {
   4   return s->timestamp + (1 << s->send_count) - 1;
   5 }
   6
   7 bool next_send_less_than(void *user_data, pheap_node_id_t a,
   8                          pheap_node_id_t b) {
   9   press_t *presses = (press_t *)user_data;
  10   return next_send(&presses[a]) < next_send(&presses[b]);
  11 }
  12
  13 void create_press(press_t *presses, pheap_t *sleeps_heap, uint32_t timestamp,
  14                   u16_t seq) {
  15   pheap_node_id_t i = ph_new_node(sleeps_heap);
  16   if (i == 0) {
  17     /* TODO: Don't drop new presses just because sleeps_heap is full of old
  18      * presses. */
  19     return;
  20   }
  21   presses[i].timestamp = timestamp;
  22   presses[i].seq = seq;
  23   presses[i].send_count = 0;
  24   ph_insert_node(sleeps_heap, i);
  25 }
  26
  27 int32_t next_scheduled_send(press_t *presses, pheap_t *sleeps_heap) {
  28   pheap_node_id_t i = ph_peek_head(sleeps_heap);
  29   if (i == 0)
  30     return -1;
  31   return next_send(&presses[i]);
  32 }