X-Git-Url: http://git.scottworley.com/tattlekey/blobdiff_plain/17461dece177a2ca6e34a0cc7412b2352a1e8053..00ca9fa67636580409193bf7a9baf394113b4af8:/client/press.c

diff --git a/client/press.c b/client/press.c
new file mode 100644
index 0000000..49b2b9a
--- /dev/null
+++ b/client/press.c
@@ -0,0 +1,32 @@
+#include "press.h"
+
+static uint32_t next_send(press_t *s) {
+  return s->timestamp + (1 << s->send_count) - 1;
+}
+
+bool next_send_less_than(void *user_data, pheap_node_id_t a,
+                         pheap_node_id_t b) {
+  press_t *presses = (press_t *)user_data;
+  return next_send(&presses[a]) < next_send(&presses[b]);
+}
+
+void create_press(press_t *presses, pheap_t *sleeps_heap, uint32_t timestamp,
+                  u16_t seq) {
+  pheap_node_id_t i = ph_new_node(sleeps_heap);
+  if (i == 0) {
+    /* TODO: Don't drop new presses just because sleeps_heap is full of old
+     * presses. */
+    return;
+  }
+  presses[i].timestamp = timestamp;
+  presses[i].seq = seq;
+  presses[i].send_count = 0;
+  ph_insert_node(sleeps_heap, i);
+}
+
+int32_t next_scheduled_send(press_t *presses, pheap_t *sleeps_heap) {
+  pheap_node_id_t i = ph_peek_head(sleeps_heap);
+  if (i == 0)
+    return -1;
+  return next_send(&presses[i]);
+}