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Fix up window reference counting and don't crash if the rename timer

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fires while the window is dead but still referenced. Fixes problem
reported by Michael Scholz.
This commit is contained in:
Nicholas Marriott 2012-08-21 10:00:33 +00:00
parent a1e4908ed7
commit 58e8e0eac8
4 changed files with 18 additions and 8 deletions
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3
names.c
View File

@ -50,6 +50,9 @@ window_name_callback(unused int fd, unused short events, void *data)
struct window *w = data;
char *name, *wname;
if (w->active == NULL)
return;
if (!options_get_number(&w->options, "automatic-rename")) {
if (event_initialized(&w->name_timer))
event_del(&w->name_timer);

3
notify.c
View File

@ -125,7 +125,8 @@ notify_drain(void)
if (ne->session != NULL)
ne->session->references--;
if (ne->window != NULL)
ne->window->references--;
window_remove_ref(ne->window);
TAILQ_REMOVE(&notify_queue, ne, entry);
free(ne);
}

1
tmux.h
View File

@ -2130,6 +2130,7 @@ struct window_pane *window_pane_find_down(struct window_pane *);
struct window_pane *window_pane_find_left(struct window_pane *);
struct window_pane *window_pane_find_right(struct window_pane *);
void window_set_name(struct window *, const char *);
void window_remove_ref(struct window *);
void winlink_clear_flags(struct winlink *);
void window_mode_attrs(struct grid_cell *, struct options *);

19
window.c
View File

@ -182,13 +182,8 @@ winlink_remove(struct winlinks *wwl, struct winlink *wl)
free(wl->status_text);
free(wl);
if (w != NULL) {
if (w->references == 0)
fatal("bad reference count");
w->references--;
if (w->references == 0)
window_destroy(w);
}
if (w != NULL)
window_remove_ref(w);
}
struct winlink *
@ -362,6 +357,16 @@ window_destroy(struct window *w)
free(w);
}
void
window_remove_ref(struct window *w)
{
if (w->references == 0)
fatal("bad reference count");
w->references--;
if (w->references == 0)
window_destroy(w);
}
void
window_set_name(struct window *w, const char *new_name)
{