New event API - OCaml bindings (RHBZ#664558).

[libguestfs.git] / ocaml / t / guestfs_400_events.ml

diff --git a/ocaml/t/guestfs_400_events.ml b/ocaml/t/guestfs_400_events.ml
new file mode 100644 (file)
index 0000000..7bd7715
--- /dev/null
+++ b/ocaml/t/guestfs_400_events.ml
@@ -0,0 +1,71 @@
+(* libguestfs OCaml bindings
+ * Copyright (C) 2011 Red Hat Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *)
+
+open Printf
+
+let log g ev eh buf array =
+  let ev =
+    match ev with
+    | Guestfs.EVENT_CLOSE -> "close"
+    | Guestfs.EVENT_SUBPROCESS_QUIT -> "subprocess_quit"
+    | Guestfs.EVENT_LAUNCH_DONE -> "launch_done"
+    | Guestfs.EVENT_PROGRESS -> "progress"
+    | Guestfs.EVENT_APPLIANCE -> "appliance"
+    | Guestfs.EVENT_LIBRARY -> "library"
+    | Guestfs.EVENT_TRACE -> "trace" in
+
+  let eh : int = Obj.magic eh in
+
+  printf "ocaml event logged: event=%s eh=%d buf=%S array=[%s]\n"
+    ev eh buf
+    (String.concat ", " (List.map Int64.to_string (Array.to_list array)))
+
+let close_invoked = ref 0
+
+let close g ev eh buf array =
+  incr close_invoked;
+  log g ev eh buf array
+
+let () =
+  let g = new Guestfs.guestfs () in
+
+  (* Grab log, trace and daemon messages into our own custom handler
+   * which prints the messages with a particular prefix.
+   *)
+  let events = [Guestfs.EVENT_APPLIANCE; Guestfs.EVENT_LIBRARY;
+                Guestfs.EVENT_TRACE] in
+  ignore (g#set_event_callback log events);
+
+  (* Check that the close event is invoked. *)
+  ignore (g#set_event_callback close [Guestfs.EVENT_CLOSE]);
+
+  (* Now make sure we see some messages. *)
+  g#set_trace true;
+  g#set_verbose true;
+
+  (* Do some stuff. *)
+  g#add_drive_ro "/dev/null";
+  g#set_autosync true;
+
+  (* Close the handle -- should call the close callback. *)
+  assert (!close_invoked = 0);
+  g#close ();
+  assert (!close_invoked = 1);
+
+  (* Run full garbage collection. *)
+  Gc.compact ()