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win: split struct win

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Currently compton handles window creation event by immediately query all
the information it needs and create a window struct with that
information. However, this is prone to race conditions.

In the future, we want to react to window creation event by creating a
placeholder in the window stack, and only query window information in a
critical section where the X server is grabbed by us.

This commit split struct win into two struct, one as placeholder, the
other for holding actual window information.

Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
This commit is contained in:
Yuxuan Shui
2019-04-17 23:14:45 +01:00
parent 27603343a1
commit bd4c242015
17 changed files with 699 additions and 514 deletions
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4
src/compton.h
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@@ -42,9 +42,7 @@ uint32_t determine_evmask(session_t *ps, xcb_window_t wid, win_evmode_t mode);
xcb_window_t find_client_win(session_t *ps, xcb_window_t w);
win *find_toplevel2(session_t *ps, xcb_window_t wid);
win *recheck_focus(session_t *ps);
struct managed_win *recheck_focus(session_t *ps);
/// Handle configure event of a root window
void configure_root(session_t *ps, int width, int height);