+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>
+
+/* Low-level event API. */
+typedef void (*guestfs_send_cb) (guestfs_h *g, void *data);
+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_send_callback (guestfs_h *g, guestfs_send_cb cb, void *opaque);
+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);
+
+extern void guestfs_error (guestfs_h *g, const char *fs, ...)
+ __attribute__((format (printf,2,3)));
+extern void guestfs_perrorf (guestfs_h *g, const char *fs, ...)
+ __attribute__((format (printf,2,3)));
+extern void *guestfs_safe_malloc (guestfs_h *g, size_t nbytes);
+extern void *guestfs_safe_calloc (guestfs_h *g, size_t n, size_t s);
+extern void *guestfs_safe_realloc (guestfs_h *g, void *ptr, int nbytes);
+extern char *guestfs_safe_strdup (guestfs_h *g, const char *str);
+extern void *guestfs_safe_memdup (guestfs_h *g, void *ptr, size_t size);
+
+extern int guestfs__switch_to_sending (guestfs_h *g);
+extern int guestfs__switch_to_receiving (guestfs_h *g);
+
+/* These *_sync calls wait until the action is performed, using the
+ * main loop. We should implement asynchronous versions too.
+ */
+extern int guestfs__send_sync (guestfs_h *g, int proc_nr, xdrproc_t xdrp, char *args);
+extern int guestfs__send_file_sync (guestfs_h *g, const char *filename);
+extern int guestfs__receive_file_sync (guestfs_h *g, const char *filename);
+
+/* 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) (guestfs_main_loop *ml, guestfs_h *g, void *data, int watch, int fd, int events);
+typedef int (*guestfs_add_handle_cb) (guestfs_main_loop *ml, guestfs_h *g, int fd, int events, guestfs_handle_event_cb cb, void *data);
+typedef int (*guestfs_remove_handle_cb) (guestfs_main_loop *ml, guestfs_h *g, int watch);
+typedef void (*guestfs_handle_timeout_cb) (guestfs_main_loop *ml, guestfs_h *g, void *data, int timer);
+typedef int (*guestfs_add_timeout_cb) (guestfs_main_loop *ml, guestfs_h *g, int interval, guestfs_handle_timeout_cb cb, void *data);
+typedef int (*guestfs_remove_timeout_cb) (guestfs_main_loop *ml, guestfs_h *g, int timer);
+typedef int (*guestfs_main_loop_run_cb) (guestfs_main_loop *ml, guestfs_h *g);
+typedef int (*guestfs_main_loop_quit_cb) (guestfs_main_loop *ml, guestfs_h *g);
+
+/* This is the head of the main loop structure. Concrete implementations
+ * use additional private data after this struct.
+ */
+struct guestfs_main_loop {
+ guestfs_add_handle_cb add_handle;
+ guestfs_remove_handle_cb remove_handle;
+ guestfs_add_timeout_cb add_timeout;
+ guestfs_remove_timeout_cb remove_timeout;
+ guestfs_main_loop_run_cb main_loop_run;
+ guestfs_main_loop_quit_cb main_loop_quit;
+};
+
+extern void guestfs_set_main_loop (guestfs_h *handle, guestfs_main_loop *main_loop);
+extern guestfs_main_loop *guestfs_get_main_loop (guestfs_h *handle);
+extern guestfs_main_loop *guestfs_get_default_main_loop (void);