+extern void guestfs_set_out_of_memory_handler (guestfs_h *g, guestfs_abort_cb);
+extern guestfs_abort_cb guestfs_get_out_of_memory_handler (guestfs_h *g);
+
+#include <guestfs-structs.h>
+#include <guestfs-actions.h>
+
+extern void guestfs_free_int_bool (struct guestfs_int_bool *);
+extern void guestfs_free_lvm_pv_list (struct guestfs_lvm_pv_list *);
+extern void guestfs_free_lvm_vg_list (struct guestfs_lvm_vg_list *);
+extern void guestfs_free_lvm_lv_list (struct guestfs_lvm_lv_list *);
+
+/* Low-level event API. */
+typedef void (*guestfs_reply_cb) (guestfs_h *g, void *data, XDR *xdr);
+typedef void (*guestfs_log_message_cb) (guestfs_h *g, void *data, char *buf, int len);
+typedef void (*guestfs_subprocess_quit_cb) (guestfs_h *g, void *data);
+typedef void (*guestfs_launch_done_cb) (guestfs_h *g, void *data);
+
+extern void guestfs_set_reply_callback (guestfs_h *g, guestfs_reply_cb cb, void *opaque);
+extern void guestfs_set_log_message_callback (guestfs_h *g, guestfs_log_message_cb cb, void *opaque);
+extern void guestfs_set_subprocess_quit_callback (guestfs_h *g, guestfs_subprocess_quit_cb cb, void *opaque);
+extern void guestfs_set_launch_done_callback (guestfs_h *g, guestfs_launch_done_cb cb, void *opaque);
+
+/* Main loop. */
+#define GUESTFS_HANDLE_READABLE 0x1
+#define GUESTFS_HANDLE_WRITABLE 0x2
+#define GUESTFS_HANDLE_HANGUP 0x4
+#define GUESTFS_HANDLE_ERROR 0x8
+
+typedef void (*guestfs_handle_event_cb) (void *data, int watch, int fd, int events);
+typedef int (*guestfs_add_handle_cb) (guestfs_h *g, int fd, int events, guestfs_handle_event_cb cb, void *data);
+typedef int (*guestfs_remove_handle_cb) (guestfs_h *g, int watch);
+typedef void (*guestfs_handle_timeout_cb) (void *data, int timer);
+typedef int (*guestfs_add_timeout_cb) (guestfs_h *g, int interval, guestfs_handle_timeout_cb cb, void *data);
+typedef int (*guestfs_remove_timeout_cb) (guestfs_h *g, int timer);
+typedef void (*guestfs_main_loop_run_cb) (guestfs_h *g);
+typedef void (*guestfs_main_loop_quit_cb) (guestfs_h *g);