1 files changed, 31 insertions, 0 deletions
diff --git a/lib/coro.h b/lib/coro.h
new file mode 100644
index 00000000..b36f1d2c
--- /dev/null
+++ b/lib/coro.h
@@ -0,0 +1,31 @@
+/*
+ *	BIRD Coroutines
+ *
+ *	(c) 2017 Martin Mares <mj@ucw.cz>
+ *	(c) 2020-2021 Maria Matejka <mq@jmq.cz>
+ *
+ *	Can be freely distributed and used under the terms of the GNU GPL.
+ */
+
+#ifndef _BIRD_CORO_H_
+#define _BIRD_CORO_H_
+
+#include "lib/resource.h"
+
+/* A completely opaque coroutine handle. */
+struct coroutine;
+
+/* Coroutines are independent threads bound to pools.
+ * You request a coroutine by calling coro_run().
+ * It is forbidden to free a running coroutine from outside.
+ * The running coroutine must free itself by rfree() before returning.
+ */
+struct coroutine *coro_run(pool *, void (*entry)(void *), void *data);
+
+/* Get self. */
+extern _Thread_local struct coroutine *this_coro;
+
+/* Just wait for a little while. Not intended for general use; use events if possible. */
+void coro_yield(void);
+
+#endif