static int unuse_one_window(struct packed_git *current, int keep_fd)
{
struct packed_git *p, *lru_p = NULL;
struct pack_window *lru_w = NULL, *lru_l = NULL;
if (current)
scan_windows(current, &lru_p, &lru_w, &lru_l);
for (p = packed_git; p; p = p->next)
scan_windows(p, &lru_p, &lru_w, &lru_l);
if (lru_p) {
munmap(lru_w->base, lru_w->len);
pack_mapped -= lru_w->len;
if (lru_l)
lru_l->next = lru_w->next;
else {
lru_p->windows = lru_w->next;
if (!lru_p->windows && lru_p->pack_fd != keep_fd) {
close(lru_p->pack_fd);
lru_p->pack_fd = -1;
}
}
free(lru_w);
pack_open_windows--;
return 1;
}
return 0;
}
int main(int argc, char **argv)
{
xcb_connection_t *connection = xcb_connect(NULL, &wm_conf.default_screen_num);
if (xcb_connection_has_error(connection)) {
fprintf(stderr, "failed to open display\n");
exit(1);
}
init_wm_conf();
init_conf_dir();
wm_conf.connection = connection;
const xcb_setup_t *setup = xcb_get_setup(connection);
int num_screens = xcb_setup_roots_length(setup);
fprintf(stderr, "init: num_screens = %d\n", num_screens);
fprintf(stderr, "init: default_screen_num = %d\n", wm_conf.default_screen_num);
xcb_screen_t *screen = xcb_setup_roots_iterator(xcb_get_setup(connection)).data;
wm_conf.screen = screen;
xcb_window_t root_window = screen->root;
xcb_grab_server(connection);
xcb_flush(connection);
xcb_event_handlers_t *event_handlers = &wm_conf.event_handlers;
xcb_event_handlers_init(connection, event_handlers);
set_exclusive_error_handler(event_handlers, handle_startup_error);
/* Try to get substructure redirect events from root window.
* This will cause an error if a window manager is already running.
*/
const uint32_t sub_redirect = XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT;
xcb_change_window_attributes(connection,
root_window,
XCB_CW_EVENT_MASK,
&sub_redirect);
/* Need to xcb_flush to validate error handler */
xcb_aux_sync(connection);
/* Process all errors in the queue if any */
xcb_event_poll_for_event_loop(event_handlers);
scan_windows();
xinerama_test();
set_exclusive_error_handler(event_handlers, handle_error);
set_event_handlers(event_handlers);
/* Allocate the key symbols */
wm_conf.key_syms = xcb_key_symbols_alloc(connection);
fprintf(stderr, "selecting events from root window\n");
const uint32_t root_win_event_mask = XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT |
XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY |
XCB_EVENT_MASK_ENTER_WINDOW |
XCB_EVENT_MASK_LEAVE_WINDOW |
XCB_EVENT_MASK_STRUCTURE_NOTIFY |
XCB_EVENT_MASK_PROPERTY_CHANGE |
XCB_EVENT_MASK_BUTTON_PRESS |
XCB_EVENT_MASK_BUTTON_RELEASE |
XCB_EVENT_MASK_FOCUS_CHANGE;
xcb_change_window_attributes(connection, root_window, XCB_CW_EVENT_MASK, &root_win_event_mask);
xcb_ungrab_server(connection);
xcb_flush(connection);
wm_conf.repl_server = repl_server_init();
load_init_scheme();
fprintf(stderr, "entering event loop\n");
event_loop();
xcb_disconnect(connection);
return 0;
}
