Merge pull request #1262 from nyorain/session_fix
Improve session handling
This commit is contained in:
commit
841d04db99
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@ -15,6 +15,7 @@
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#include <wlr/backend/wayland.h>
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#include <wlr/config.h>
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#include <wlr/util/log.h>
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#include "backend/multi.h"
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/* WLR_HAS_X11_BACKEND needs to be after wlr/config.h */
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#ifdef WLR_HAS_X11_BACKEND
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@ -56,6 +57,13 @@ struct wlr_renderer *wlr_backend_get_renderer(struct wlr_backend *backend) {
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return NULL;
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}
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struct wlr_session *wlr_backend_get_session(struct wlr_backend *backend) {
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if (backend->impl->get_session) {
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return backend->impl->get_session(backend);
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}
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return NULL;
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}
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static size_t parse_outputs_env(const char *name) {
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const char *outputs_str = getenv(name);
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if (outputs_str == NULL) {
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@ -158,10 +166,12 @@ static struct wlr_backend *attempt_backend_by_name(struct wl_display *display,
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return attempt_headless_backend(display, create_renderer_func);
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} else if (strcmp(name, "drm") == 0 || strcmp(name, "libinput") == 0) {
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// DRM and libinput need a session
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*session = wlr_session_create(display);
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if (!*session) {
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wlr_log(WLR_ERROR, "failed to start a session");
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return NULL;
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*session = wlr_session_create(display);
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if (!*session) {
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wlr_log(WLR_ERROR, "failed to start a session");
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return NULL;
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}
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}
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if (strcmp(name, "libinput") == 0) {
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@ -178,13 +188,12 @@ static struct wlr_backend *attempt_backend_by_name(struct wl_display *display,
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struct wlr_backend *wlr_backend_autocreate(struct wl_display *display,
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wlr_renderer_create_func_t create_renderer_func) {
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struct wlr_backend *backend = wlr_multi_backend_create(display);
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struct wlr_multi_backend *multi = (struct wlr_multi_backend *)backend;
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if (!backend) {
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wlr_log(WLR_ERROR, "could not allocate multibackend");
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return NULL;
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}
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struct wlr_session *session = NULL;
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char *names = getenv("WLR_BACKENDS");
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if (names) {
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names = strdup(names);
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@ -197,12 +206,12 @@ struct wlr_backend *wlr_backend_autocreate(struct wl_display *display,
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char *saveptr;
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char *name = strtok_r(names, ",", &saveptr);
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while (name != NULL) {
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struct wlr_backend *subbackend =
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attempt_backend_by_name(display, backend, &session, name, create_renderer_func);
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struct wlr_backend *subbackend = attempt_backend_by_name(display,
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backend, &multi->session, name, create_renderer_func);
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if (subbackend == NULL) {
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wlr_log(WLR_ERROR, "failed to start backend '%s'", name);
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wlr_backend_destroy(backend);
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wlr_session_destroy(session);
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wlr_session_destroy(multi->session);
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free(names);
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return NULL;
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}
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@ -210,7 +219,7 @@ struct wlr_backend *wlr_backend_autocreate(struct wl_display *display,
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if (!wlr_multi_backend_add(backend, subbackend)) {
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wlr_log(WLR_ERROR, "failed to add backend '%s'", name);
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wlr_backend_destroy(backend);
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wlr_session_destroy(session);
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wlr_session_destroy(multi->session);
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free(names);
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return NULL;
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}
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@ -245,29 +254,30 @@ struct wlr_backend *wlr_backend_autocreate(struct wl_display *display,
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#endif
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// Attempt DRM+libinput
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session = wlr_session_create(display);
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if (!session) {
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multi->session = wlr_session_create(display);
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if (!multi->session) {
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wlr_log(WLR_ERROR, "Failed to start a DRM session");
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wlr_backend_destroy(backend);
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return NULL;
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}
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struct wlr_backend *libinput = wlr_libinput_backend_create(display, session);
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struct wlr_backend *libinput = wlr_libinput_backend_create(display,
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multi->session);
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if (!libinput) {
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wlr_log(WLR_ERROR, "Failed to start libinput backend");
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wlr_backend_destroy(backend);
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wlr_session_destroy(session);
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wlr_session_destroy(multi->session);
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return NULL;
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}
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wlr_multi_backend_add(backend, libinput);
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struct wlr_backend *primary_drm =
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attempt_drm_backend(display, backend, session, create_renderer_func);
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struct wlr_backend *primary_drm = attempt_drm_backend(display, backend,
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multi->session, create_renderer_func);
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if (!primary_drm) {
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wlr_log(WLR_ERROR, "Failed to open any DRM device");
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wlr_backend_destroy(libinput);
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wlr_backend_destroy(backend);
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wlr_session_destroy(session);
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wlr_session_destroy(multi->session);
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return NULL;
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}
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@ -203,8 +203,3 @@ error_fd:
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free(drm);
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return NULL;
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}
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struct wlr_session *wlr_drm_backend_get_session(struct wlr_backend *backend) {
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struct wlr_drm_backend *drm = get_drm_backend_from_backend(backend);
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return drm->session;
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}
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@ -1,7 +1,6 @@
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#include <assert.h>
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#include <stdbool.h>
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#include <stdlib.h>
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#include <wlr/backend/drm.h>
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#include <wlr/backend/interface.h>
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#include <wlr/backend/session.h>
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#include <wlr/util/log.h>
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@ -72,10 +71,17 @@ static struct wlr_renderer *multi_backend_get_renderer(
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return NULL;
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}
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static struct wlr_session *multi_backend_get_session(
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struct wlr_backend *_backend) {
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struct wlr_multi_backend *backend = multi_backend_from_backend(_backend);
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return backend->session;
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}
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struct wlr_backend_impl backend_impl = {
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.start = multi_backend_start,
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.destroy = multi_backend_destroy,
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.get_renderer = multi_backend_get_renderer,
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.get_session = multi_backend_get_session,
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};
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static void handle_display_destroy(struct wl_listener *listener, void *data) {
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@ -191,17 +197,6 @@ void wlr_multi_backend_remove(struct wlr_backend *_multi,
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}
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}
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struct wlr_session *wlr_multi_get_session(struct wlr_backend *_backend) {
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struct wlr_multi_backend *backend = multi_backend_from_backend(_backend);
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struct subbackend_state *sub;
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wl_list_for_each(sub, &backend->backends, link) {
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if (wlr_backend_is_drm(sub->backend)) {
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return wlr_drm_backend_get_session(sub->backend);
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}
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}
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return NULL;
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}
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bool wlr_multi_is_empty(struct wlr_backend *_backend) {
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assert(wlr_backend_is_multi(_backend));
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struct wlr_multi_backend *backend = (struct wlr_multi_backend *)_backend;
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@ -35,6 +35,11 @@ struct logind_session {
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char *id;
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char *path;
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// specifies whether a drm device was taken
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// if so, the session will be (de)activated with the drm fd,
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// otherwise with the dbus PropertiesChanged on "active" signal
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bool has_drm;
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};
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static struct logind_session *logind_session_from_session(
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@ -57,6 +62,10 @@ static int logind_take_device(struct wlr_session *base, const char *path) {
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return -1;
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}
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if (major(st.st_rdev) == DRM_MAJOR) {
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session->has_drm = true;
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}
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ret = sd_bus_call_method(session->bus, "org.freedesktop.login1",
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session->path, "org.freedesktop.login1.Session", "TakeDevice",
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&error, &msg, "uu", major(st.st_rdev), minor(st.st_rdev));
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@ -262,6 +271,7 @@ static int pause_device(sd_bus_message *msg, void *userdata, sd_bus_error *ret_e
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}
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if (major == DRM_MAJOR) {
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assert(session->has_drm);
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session->base.active = false;
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wlr_signal_emit_safe(&session->base.session_signal, session);
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}
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@ -307,6 +317,115 @@ error:
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return 0;
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}
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static int properties_changed(sd_bus_message *msg, void *userdata,
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sd_bus_error *ret_error) {
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struct logind_session *session = userdata;
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int ret = 0;
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// if we have a drm fd we don't depend on this
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if (session->has_drm) {
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return 0;
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}
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// PropertiesChanged arg 1: interface
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const char *interface;
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ret = sd_bus_message_read_basic(msg, 's', &interface); // skip path
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if (ret < 0) {
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goto error;
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}
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if (strcmp(interface, "org.freedesktop.login1.Session") != 0) {
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// not interesting for us; ignore
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wlr_log(WLR_DEBUG, "ignoring PropertiesChanged from %s", interface);
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return 0;
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}
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// PropertiesChanged arg 2: changed properties with values
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ret = sd_bus_message_enter_container(msg, 'a', "{sv}");
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if (ret < 0) {
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goto error;
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}
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const char *s;
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while ((ret = sd_bus_message_enter_container(msg, 'e', "sv")) > 0) {
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ret = sd_bus_message_read_basic(msg, 's', &s);
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if (ret < 0) {
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goto error;
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}
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if (strcmp(s, "Active") == 0) {
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int ret;
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ret = sd_bus_message_enter_container(msg, 'v', "b");
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if (ret < 0) {
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goto error;
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}
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bool active;
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ret = sd_bus_message_read_basic(msg, 'b', &active);
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if (ret < 0) {
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goto error;
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}
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if (session->base.active != active) {
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session->base.active = active;
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wlr_signal_emit_safe(&session->base.session_signal, session);
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}
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return 0;
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} else {
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sd_bus_message_skip(msg, "{sv}");
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}
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ret = sd_bus_message_exit_container(msg);
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if (ret < 0) {
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goto error;
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}
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}
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if (ret < 0) {
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goto error;
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}
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ret = sd_bus_message_exit_container(msg);
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if (ret < 0) {
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goto error;
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}
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// PropertiesChanged arg 3: changed properties without values
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sd_bus_message_enter_container(msg, 'a', "s");
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while ((ret = sd_bus_message_read_basic(msg, 's', &s)) > 0) {
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if (strcmp(s, "Active") == 0) {
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sd_bus_error error = SD_BUS_ERROR_NULL;
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bool active;
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ret = sd_bus_get_property_trivial(session->bus,
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"org.freedesktop.login1", session->path,
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"org.freedesktop.login1.Session", "Active", &error,
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'b', &active);
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if (ret < 0) {
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wlr_log(WLR_ERROR, "Failed to get 'Active' property: '%s' (%s)",
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error.message, strerror(ret));
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return 0;
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}
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if (session->base.active != active) {
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session->base.active = active;
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wlr_signal_emit_safe(&session->base.session_signal, session);
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}
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return 0;
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}
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}
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if (ret < 0) {
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goto error;
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}
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return 0;
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error:
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wlr_log(WLR_ERROR, "Failed to parse D-Bus PropertiesChanged %s",
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strerror(-ret));
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return 0;
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}
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static bool add_signal_matches(struct logind_session *session) {
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int ret;
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@ -338,6 +457,14 @@ static bool add_signal_matches(struct logind_session *session) {
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return false;
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}
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ret = sd_bus_match_signal(session->bus, NULL, "org.freedesktop.login1",
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session->path, "org.freedesktop.DBus.Properties", "PropertiesChanged",
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properties_changed, session);
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if (ret < 0) {
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wlr_log(WLR_ERROR, "Failed to add D-Bus match: %s", strerror(-ret));
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return false;
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}
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return true;
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}
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@ -8,6 +8,7 @@
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struct wlr_multi_backend {
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struct wlr_backend backend;
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struct wlr_session *session;
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struct wl_list backends;
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@ -57,5 +57,10 @@ void wlr_backend_destroy(struct wlr_backend *backend);
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* Obtains the wlr_renderer reference this backend is using.
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*/
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struct wlr_renderer *wlr_backend_get_renderer(struct wlr_backend *backend);
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/**
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* Obtains the wlr_session reference from this backend if there is any.
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* Might return NULL for backends that don't use a session.
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*/
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struct wlr_session *wlr_backend_get_session(struct wlr_backend *backend);
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#endif
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@ -34,6 +34,4 @@ bool wlr_output_is_drm(struct wlr_output *output);
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typedef struct _drmModeModeInfo drmModeModeInfo;
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bool wlr_drm_connector_add_mode(struct wlr_output *output, const drmModeModeInfo *mode);
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struct wlr_session *wlr_drm_backend_get_session(struct wlr_backend *backend);
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#endif
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@ -17,6 +17,7 @@ struct wlr_backend_impl {
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bool (*start)(struct wlr_backend *backend);
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void (*destroy)(struct wlr_backend *backend);
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struct wlr_renderer *(*get_renderer)(struct wlr_backend *backend);
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struct wlr_session *(*get_session)(struct wlr_backend *backend);
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};
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/**
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@ -28,7 +28,6 @@ void wlr_multi_backend_remove(struct wlr_backend *multi,
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struct wlr_backend *backend);
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bool wlr_backend_is_multi(struct wlr_backend *backend);
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struct wlr_session *wlr_multi_get_session(struct wlr_backend *base);
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bool wlr_multi_is_empty(struct wlr_backend *backend);
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void wlr_multi_for_each_backend(struct wlr_backend *backend,
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@ -5,7 +5,6 @@
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#include <sys/wait.h>
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#include <unistd.h>
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#include <wayland-server.h>
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#include <wlr/backend/multi.h>
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#include <wlr/backend/session.h>
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#include <wlr/types/wlr_input_device.h>
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#include <wlr/types/wlr_pointer_constraints_v1.h>
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@ -201,14 +200,13 @@ static bool keyboard_execute_compositor_binding(struct roots_keyboard *keyboard,
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if (keysym >= XKB_KEY_XF86Switch_VT_1 &&
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keysym <= XKB_KEY_XF86Switch_VT_12) {
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struct roots_server *server = keyboard->input->server;
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if (wlr_backend_is_multi(server->backend)) {
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struct wlr_session *session =
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wlr_multi_get_session(server->backend);
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if (session) {
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unsigned vt = keysym - XKB_KEY_XF86Switch_VT_1 + 1;
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wlr_session_change_vt(session, vt);
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}
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struct wlr_session *session = wlr_backend_get_session(server->backend);
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if (session) {
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unsigned vt = keysym - XKB_KEY_XF86Switch_VT_1 + 1;
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wlr_session_change_vt(session, vt);
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}
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return true;
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}
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