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backend: fix attempt_backend_by_name multi backend self insertion

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This commit is contained in:
Simon Zeni 2021-11-19 10:41:52 -05:00
parent 25bb92faee
commit c0fd60be63
1 changed files with 20 additions and 30 deletions
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50
backend/backend.c
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@ -258,46 +258,46 @@ static struct wlr_backend *attempt_drm_backend(struct wl_display *display,
}
#endif
static struct wlr_backend *attempt_backend_by_name(struct wl_display *display,
struct wlr_backend *backend, struct wlr_session **session,
const char *name) {
static bool attempt_backend_by_name(struct wl_display *display,
struct wlr_multi_backend *multi, char *name) {
struct wlr_backend *backend = NULL;
if (strcmp(name, "wayland") == 0) {
return attempt_wl_backend(display);
backend = attempt_wl_backend(display);
#if WLR_HAS_X11_BACKEND
} else if (strcmp(name, "x11") == 0) {
return attempt_x11_backend(display, NULL);
backend = attempt_x11_backend(display, NULL);
#endif
} else if (strcmp(name, "headless") == 0) {
return attempt_headless_backend(display);
backend = attempt_headless_backend(display);
} else if (strcmp(name, "noop") == 0) {
return attempt_noop_backend(display);
backend = attempt_noop_backend(display);
} else if (strcmp(name, "drm") == 0 || strcmp(name, "libinput") == 0) {
// DRM and libinput need a session
if (!*session) {
*session = session_create_and_wait(display);
if (!*session) {
if (multi->session == NULL) {
multi->session = session_create_and_wait(display);
if (multi->session == NULL) {
wlr_log(WLR_ERROR, "failed to start a session");
return NULL;
return false;
}
}
if (strcmp(name, "libinput") == 0) {
#if WLR_HAS_LIBINPUT_BACKEND
return wlr_libinput_backend_create(display, *session);
#else
return NULL;
backend = wlr_libinput_backend_create(display, multi->session);
#endif
} else {
#if WLR_HAS_DRM_BACKEND
return attempt_drm_backend(display, backend, *session);
#else
return NULL;
// attempt_drm_backend adds the multi drm backends itself
return attempt_drm_backend(display, &multi->backend,
multi->session) != NULL;
#endif
}
} else {
wlr_log(WLR_ERROR, "unrecognized backend '%s'", name);
return false;
}
wlr_log(WLR_ERROR, "unrecognized backend '%s'", name);
return NULL;
return wlr_multi_backend_add(&multi->backend, backend);
}
struct wlr_backend *wlr_backend_autocreate(struct wl_display *display) {
@ -323,17 +323,7 @@ struct wlr_backend *wlr_backend_autocreate(struct wl_display *display) {
char *saveptr;
char *name = strtok_r(names, ",", &saveptr);
while (name != NULL) {
struct wlr_backend *subbackend = attempt_backend_by_name(display,
backend, &multi->session, name);
if (subbackend == NULL) {
wlr_log(WLR_ERROR, "failed to start backend '%s'", name);
wlr_session_destroy(multi->session);
wlr_backend_destroy(backend);
free(names);
return NULL;
}
if (!wlr_multi_backend_add(backend, subbackend)) {
if (!attempt_backend_by_name(display, multi, name)) {
wlr_log(WLR_ERROR, "failed to add backend '%s'", name);
wlr_session_destroy(multi->session);
wlr_backend_destroy(backend);