Start prototyping things

src/schedule.c

@@ -0,0 +1,36 @@
+#include <stdlib.h>
+
+#include <hexagram/schedule.h>
+
+hexagram_schedule *hexagram_schedule_create(hexagram_table_entry *table,
+                                            size_t count) {
+    hexagram_schedule *schedule;
+    size_t i;
+
+    if ((schedule = malloc(sizeof(*schedule) + count * sizeof(hexagram_schedule_slot))) == 0) {
+        goto error_malloc_schedule;
+    }
+
+    schedule->timer   = NULL;
+    schedule->current = 0;
+
+    for (i=0; i<count; i++) {
+        hexagram_schedule_slot *slot = &((hexagram_schedule_slot *)(schedule + 1))[i];
+
+        slot->interval_us = 0;
+        slot->entry       = &table[i];
+    }
+
+    return schedule;
+
+error_malloc_schedule:
+    return NULL;
+}
+
+void hexagram_schedule_destroy(hexagram_schedule *schedule) {
+    if (schedule->timer) {
+        timer_delete(schedule->timer);
+    }
+
+    free(schedule);
+}