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xcb errors: init errors context at start

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`xcb_errors_context_new` is more than just a malloc, it does a few
xcb requests so we benefit from not generating a new context everytime
This commit is contained in:
Dominique Martinet 2018-03-03 17:06:27 +01:00
parent 7d1870c6f1
commit d9a724c4a2
2 changed files with 22 additions and 23 deletions
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3
include/xwayland/xwm.h
View file

@ -105,6 +105,9 @@ struct wlr_xwm {
struct wl_list unpaired_surfaces; // wlr_xwayland_surface::unpaired_link
const xcb_query_extension_reply_t *xfixes;
#ifdef WLR_HAS_XCB_ERRORS
xcb_errors_context_t *errors_context;
#endif
struct wl_listener compositor_new_surface;
struct wl_listener compositor_destroy;

42
xwayland/xwm.c
View file

@ -952,30 +952,24 @@ static void xwm_handle_focus_in(struct wlr_xwm *xwm,
static void xwm_handle_xcb_error(struct wlr_xwm *xwm, xcb_value_error_t *ev) {
#ifdef WLR_HAS_XCB_ERRORS
xcb_errors_context_t *err_ctx;
if (xcb_errors_context_new(xwm->xcb_conn, &err_ctx)) {
wlr_log(L_DEBUG, "xcb error happened, but could not allocate error context");
goto log_raw;
}
const char *major_name =
xcb_errors_get_name_for_major_code(err_ctx, ev->major_opcode);
xcb_errors_get_name_for_major_code(xwm->errors_context,
ev->major_opcode);
if (!major_name) {
wlr_log(L_DEBUG, "xcb error happened, but could not get major name");
xcb_errors_context_free(err_ctx);
goto log_raw;
}
const char *minor_name =
xcb_errors_get_name_for_minor_code(err_ctx,
xcb_errors_get_name_for_minor_code(xwm->errors_context,
ev->major_opcode, ev->minor_opcode);
const char *extension;
const char *error_name =
xcb_errors_get_name_for_error(err_ctx, ev->error_code, &extension);
xcb_errors_get_name_for_error(xwm->errors_context,
ev->error_code, &extension);
if (!error_name) {
wlr_log(L_DEBUG, "xcb error happened, but could not get error name");
xcb_errors_context_free(err_ctx);
goto log_raw;
}
@ -984,7 +978,6 @@ static void xwm_handle_xcb_error(struct wlr_xwm *xwm, xcb_value_error_t *ev) {
error_name, extension ? extension : "no extension",
ev->sequence, ev->bad_value);
xcb_errors_context_free(err_ctx);
return;
log_raw:
#endif
@ -997,26 +990,17 @@ log_raw:
static void xwm_handle_unhandled_event(struct wlr_xwm *xwm, xcb_generic_event_t *ev) {
#ifdef WLR_HAS_XCB_ERRORS
xcb_errors_context_t *err_ctx;
if (xcb_errors_context_new(xwm->xcb_conn, &err_ctx)) {
wlr_log(L_DEBUG, "Could not allocate context for unhandled X11 event: %u",
ev->response_type);
return;
}
const char *extension;
const char *event_name =
xcb_errors_get_name_for_xcb_event(err_ctx, ev, &extension);
xcb_errors_get_name_for_xcb_event(xwm->errors_context,
ev, &extension);
if (!event_name) {
wlr_log(L_DEBUG, "no name for unhandled event: %u",
ev->response_type);
xcb_errors_context_free(err_ctx);
return;
}
wlr_log(L_DEBUG, "unhandled X11 event: %s (%u)", event_name, ev->response_type);
xcb_errors_context_free(err_ctx);
#else
wlr_log(L_DEBUG, "unhandled X11 event: %u", ev->response_type);
#endif
@ -1203,6 +1187,11 @@ void xwm_destroy(struct wlr_xwm *xwm) {
if (xwm->event_source) {
wl_event_source_remove(xwm->event_source);
}
#ifdef WLR_HAS_XCB_ERRORS
if (xwm->errors_context) {
xcb_errors_context_free(xwm->errors_context);
}
#endif
struct wlr_xwayland_surface *xsurface, *tmp;
wl_list_for_each_safe(xsurface, tmp, &xwm->surfaces, link) {
wlr_xwayland_surface_destroy(xsurface);
@ -1439,6 +1428,13 @@ struct wlr_xwm *xwm_create(struct wlr_xwayland *wlr_xwayland) {
return NULL;
}
#ifdef WLR_HAS_XCB_ERRORS
if (xcb_errors_context_new(xwm->xcb_conn, &xwm->errors_context)) {
wlr_log(L_ERROR, "Could not allocate error context");
xwm_destroy(xwm);
return NULL;
}
#endif
xcb_screen_iterator_t screen_iterator =
xcb_setup_roots_iterator(xcb_get_setup(xwm->xcb_conn));
xwm->screen = screen_iterator.data;