/* Handling of inferior events for the event loop for GDB, the GNU debugger.
- Copyright (C) 1999-2015 Free Software Foundation, Inc.
+ Copyright (C) 1999-2017 Free Software Foundation, Inc.
Written by Elena Zannoni <ezannoni@cygnus.com> of Cygnus Solutions.
This file is part of GDB.
#include "defs.h"
#include "inferior.h"
#include "infrun.h"
-#include "target.h" /* For enum inferior_event_type. */
#include "event-loop.h"
#include "event-top.h"
#include "inf-loop.h"
#include "top.h"
#include "observer.h"
-/* General function to handle events in the inferior. So far it just
- takes care of detecting errors reported by select() or poll(),
- otherwise it assumes that all is OK, and goes on reading data from
- the fd. This however may not always be what we want to do. */
+/* General function to handle events in the inferior. */
+
void
inferior_event_handler (enum inferior_event_type event_type,
gdb_client_data client_data)
{
- struct cleanup *cleanup_if_error = make_bpstat_clear_actions_cleanup ();
-
switch (event_type)
{
case INF_REG_EVENT:
- /* Catch errors for now, until the inner layers of
- fetch_inferior_event (i.e. readchar) can return meaningful
- error status. If an error occurs while getting an event from
- the target, just cancel the current command. */
- {
-
- TRY
- {
- fetch_inferior_event (client_data);
- }
- CATCH (ex, RETURN_MASK_ALL)
- {
- bpstat_clear_actions ();
- do_all_intermediate_continuations (1);
- do_all_continuations (1);
-
- throw_exception (ex);
- }
- END_CATCH
- }
+ fetch_inferior_event (client_data);
break;
case INF_EXEC_COMPLETE:
if (!ptid_equal (inferior_ptid, null_ptid))
do_all_inferior_continuations (0);
- /* If we were doing a multi-step (eg: step n, next n), but it
- got interrupted by a breakpoint, still do the pending
- continuations. The continuation itself is responsible for
- distinguishing the cases. The continuations are allowed to
- touch the inferior memory, e.g. to remove breakpoints, so run
- them before running breakpoint commands, which may resume the
- target. */
- if (non_stop
- && target_has_execution
- && !ptid_equal (inferior_ptid, null_ptid))
- do_all_intermediate_continuations_thread (inferior_thread (), 0);
- else
- do_all_intermediate_continuations (0);
-
- /* Always finish the previous command before running any
- breakpoint commands. Any stop cancels the previous command.
- E.g. a "finish" or "step-n" command interrupted by an
- unrelated breakpoint is canceled. */
- if (non_stop
- && target_has_execution
- && !ptid_equal (inferior_ptid, null_ptid))
- do_all_continuations_thread (inferior_thread (), 0);
- else
- do_all_continuations (0);
-
/* When running a command list (from a user command, say), these
are only run when the command list is all done. */
- if (interpreter_async)
+ if (current_ui->async)
{
-
check_frame_language_change ();
/* Don't propagate breakpoint commands errors. Either we're
}
break;
- case INF_EXEC_CONTINUE:
- /* Is there anything left to do for the command issued to
- complete? */
-
- if (non_stop)
- do_all_intermediate_continuations_thread (inferior_thread (), 0);
- else
- do_all_intermediate_continuations (0);
- break;
-
- case INF_TIMER:
default:
printf_unfiltered (_("Event type not recognized.\n"));
break;
}
-
- discard_cleanups (cleanup_if_error);
}