1 files changed, 58 insertions, 0 deletions
diff --git a/sysdep/unix/io-loop.h b/sysdep/unix/io-loop.h
new file mode 100644
index 00000000..1727637a
--- /dev/null
+++ b/sysdep/unix/io-loop.h
@@ -0,0 +1,58 @@
+/*
+ *	BIRD -- I/O and event loop
+ *
+ *	Can be freely distributed and used under the terms of the GNU GPL.
+ */
+
+#ifndef _BIRD_SYSDEP_UNIX_IO_LOOP_H_
+#define _BIRD_SYSDEP_UNIX_IO_LOOP_H_
+
+#include "nest/bird.h"
+
+#include "lib/lists.h"
+#include "lib/event.h"
+#include "lib/timer.h"
+
+struct free_pages
+{
+  list list;		/* List of empty pages */
+  event *cleanup;	/* Event to call when number of pages is outside bounds */
+  u16 min, max;		/* Minimal and maximal number of free pages kept */
+  uint cnt;		/* Number of empty pages */
+};
+
+struct birdloop
+{
+  resource r;
+
+  pool *pool;
+  pool *parent;
+
+  struct timeloop time;
+  event_list event_list;
+  list sock_list;
+  uint sock_num;
+
+  BUFFER(sock *) poll_sk;
+  BUFFER(struct pollfd) poll_fd;
+  u8 poll_changed;
+
+  _Atomic u32 ping_sent;
+  int wakeup_fds[2];
+
+  uint links;
+
+  struct free_pages pages;
+
+  void (*stopped)(void *data);
+  void *stop_data;
+
+  struct birdloop *prev_loop;
+};
+
+extern _Thread_local struct birdloop *birdloop_current;
+
+void init_pages(struct birdloop *loop);
+void flush_pages(struct birdloop *loop);
+
+#endif