Async working with connection handlers

src/async.h

@@ -9,10 +9,14 @@
 #ifndef SESIMOS_ASYNC_H
 #define SESIMOS_ASYNC_H
 
+#include <poll.h>
+
 #define ASYNC_KEEP 1
 
 int async(int fd, short events, int flags, void cb(void *), void *arg, void err_cb(void *), void *err_arg);
 
 void async_thread(void);
 
+void async_stop(void);
+
 #endif //SESIMOS_ASYNC_H