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authorTom Tromey <tom@tromey.com>2015-04-29 09:44:24 -0600
committerTom Tromey <tom@tromey.com>2017-02-14 10:38:56 -0700
commit3f77c7691fc5ff92eef90f39bb972f25c7422fb0 (patch)
tree99e0da3d325474407055aee6a389eacec702623e /gdb/python/python.c
parent075beec08ae857d918890c30d290863abb3f7f57 (diff)
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PR python/13598 - add before_prompt event
This adds an event that is emitted just before GDB presents a prompt to the user. This provides Python code a way to react to whatever changes might have been made by the previous command. For example, in my GUI I use this to track changes to the selected frame and reflect them in the UI. Built and regtested on x86-64 Fedora 23. gdb/ChangeLog 2017-02-14 Tom Tromey <tom@tromey.com> PR python/13598: * python/python.c (gdbpy_before_prompt_hook): Emit before_prompt event. * python/py-evts.c (gdbpy_initialize_py_events): Add before_prompt registry. * python/py-events.h (events_object) <before_prompt>: New field. gdb/doc/ChangeLog 2017-02-14 Tom Tromey <tom@tromey.com> PR python/13598: * python.texi (Events In Python): Document events.before_prompt. gdb/testsuite/ChangeLog 2017-02-14 Tom Tromey <tom@tromey.com> PR python/13598: * gdb.python/py-events.exp: Add before_prompt event tests.
Diffstat (limited to 'gdb/python/python.c')
-rw-r--r--gdb/python/python.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/gdb/python/python.c b/gdb/python/python.c
index f878f9a..73fb3d0 100644
--- a/gdb/python/python.c
+++ b/gdb/python/python.c
@@ -100,6 +100,7 @@ const struct extension_language_defn extension_language_python =
#include "interps.h"
#include "event-top.h"
#include "py-ref.h"
+#include "py-event.h"
/* True if Python has been successfully initialized, false
otherwise. */
@@ -969,6 +970,10 @@ gdbpy_before_prompt_hook (const struct extension_language_defn *extlang,
gdbpy_enter enter_py (get_current_arch (), current_language);
+ if (!evregpy_no_listeners_p (gdb_py_events.before_prompt)
+ && evpy_emit_event (NULL, gdb_py_events.before_prompt) < 0)
+ return EXT_LANG_RC_ERROR;
+
if (gdb_python_module
&& PyObject_HasAttrString (gdb_python_module, "prompt_hook"))
{