staged resolv_worker

* replaced RNG from `rnd` to `mbedtls_ctr_drbg`
* use of `uint_fastN_t` where appropriate
* heartbeat protocol draft
* improved worker scheduling mech

1 files changed, 28 insertions, 0 deletions

diff --git a/src/llist.h b/src/llist.h
new file mode 100644
index 0000000..9780ab9
--- /dev/null
+++ b/src/llist.h
@@ -0,0 +1,28 @@
+#pragma once
+#include <stddef.h>
+#include <stdbool.h>
+#include <stdint.h>
+
+
+struct prne_llist;
+struct prne_llist_entry;
+typedef struct prne_llist prne_llist_t;
+typedef struct prne_llist_entry prne_llist_entry_t;
+
+struct prne_llist {
+	prne_llist_entry_t *head, *tail;
+	size_t size;
+};
+
+struct prne_llist_entry {
+	prne_llist_entry_t *prev, *next;
+	void *element;
+};
+
+void prne_init_llist (prne_llist_t *llist);
+void prne_free_llist (prne_llist_t *llist);
+
+void prne_llist_clear (prne_llist_t *llist);
+prne_llist_entry_t *prne_llist_insert (prne_llist_t *llist, prne_llist_entry_t *entry, void *element);
+prne_llist_entry_t *prne_llist_append (prne_llist_t *llist, void *element);
+prne_llist_entry_t *prne_llist_erase (prne_llist_t *llist, prne_llist_entry_t *entry);