* defs.h (add_inferior_continuation)

	(do_all_inferior_continuations)
	(discard_all_inferior_continuations): Declare.
	* utils.c (add_inferior_continuation)
	(do_all_inferior_continuations)
	(discard_all_inferior_continuations): New.
	* inferior.h (struct inferior) <continuations>: New field.
	* inferior.c (free_inferior): Discard all the inferior
	continuations.
	* inf-loop.c (inferior_event_handler): Do all current inferior
	continuations.
	* infcmd.c (attach_command): Register an inferior continuation
	instead of a thread continuation.
	* infrun.c (handle_inferior_event): If stop_soon is
	STOP_QUIETLY_NO_SIGSTOP, also expect a TARGET_SIGNAL_0.

1 files changed, 53 insertions, 0 deletions

diff --git a/gdb/utils.c b/gdb/utils.c
index 26d7933..fed2e7e 100644
--- a/gdb/utils.c
+++ b/gdb/utils.c
@@ -505,6 +505,59 @@ add_continuation (struct thread_info *thread,
   thread->continuations = (struct continuation *) as_cleanup;
 }
 
+/* Add a continuation to the continuation list of INFERIOR.  The new
+   continuation will be added at the front.  */
+
+void
+add_inferior_continuation (void (*continuation_hook) (void *), void *args,
+			   void (*continuation_free_args) (void *))
+{
+  struct inferior *inf = current_inferior ();
+  struct cleanup *as_cleanup = &inf->continuations->base;
+  make_cleanup_ftype *continuation_hook_fn = continuation_hook;
+
+  make_my_cleanup2 (&as_cleanup,
+		    continuation_hook_fn,
+		    args,
+		    continuation_free_args);
+
+  inf->continuations = (struct continuation *) as_cleanup;
+}
+
+/* Do all continuations of the current inferior.  */
+
+void
+do_all_inferior_continuations (void)
+{
+  struct cleanup *old_chain;
+  struct cleanup *as_cleanup;
+  struct inferior *inf = current_inferior ();
+
+  if (inf->continuations == NULL)
+    return;
+
+  /* Copy the list header into another pointer, and set the global
+     list header to null, so that the global list can change as a side
+     effect of invoking the continuations and the processing of the
+     preexisting continuations will not be affected.  */
+
+  as_cleanup = &inf->continuations->base;
+  inf->continuations = NULL;
+
+  /* Work now on the list we have set aside.  */
+  do_my_cleanups (&as_cleanup, NULL);
+}
+
+/* Get rid of all the inferior-wide continuations of INF.  */
+
+void
+discard_all_inferior_continuations (struct inferior *inf)
+{
+  struct cleanup *continuation_ptr = &inf->continuations->base;
+  discard_my_cleanups (&continuation_ptr, NULL);
+  inf->continuations = NULL;
+}
+
 static void
 restore_thread_cleanup (void *arg)
 {