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core: start as wayland display server when XDG_SESSION_TYPE=wayland

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This commit gets rid of the need for --display-server and
--wayland when mutter detects that a wayland session is registered.

https://bugzilla.gnome.org/show_bug.cgi?id=741666
This commit is contained in:
Ray Strode 2014-12-17 13:29:13 -05:00
parent cf3ee327a0
commit 8ec0c99ff4
1 changed files with 80 additions and 2 deletions
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82
src/core/main.c
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@ -80,6 +80,10 @@
#ifdef HAVE_WAYLAND
#include "wayland/meta-wayland.h"
# endif
#if defined(HAVE_NATIVE_BACKEND) && defined(HAVE_WAYLAND)
#include <systemd/sd-login.h>
#endif
/*
@ -291,18 +295,92 @@ on_sigterm (gpointer user_data)
return G_SOURCE_REMOVE;
}
#if defined(HAVE_WAYLAND) && defined(HAVE_NATIVE_BACKEND)
static char *
find_logind_session_type (void)
{
char **sessions;
char *session_id;
char *session_type;
int ret, i;
ret = sd_pid_get_session (0, &session_id);
if (ret == 0 && session_id != NULL)
{
ret = sd_session_get_type (session_id, &session_type);
free (session_id);
if (ret < 0)
session_type = NULL;
goto out;
}
session_type = NULL;
ret = sd_uid_get_sessions (getuid (), TRUE, &sessions);
if (ret < 0 || sessions == NULL)
goto out;
for (i = 0; sessions[i] != NULL; i++)
{
ret = sd_session_get_type (sessions[i], &session_type);
if (ret < 0)
continue;
if (g_strcmp0 (session_type, "x11") == 0||
g_strcmp0 (session_type, "wayland") == 0)
break;
g_clear_pointer (&session_type, (GDestroyNotify) free);
}
for (i = 0; sessions[i] != NULL; i++)
free (sessions[i]);
free (sessions);
out:
return session_type;
}
static gboolean
check_for_wayland_session_type (void)
{
char *session_type = NULL;
gboolean is_wayland = FALSE;
session_type = find_logind_session_type ();
if (session_type != NULL)
{
is_wayland = g_strcmp0 (session_type, "wayland") == 0;
free (session_type);
}
return is_wayland;
}
#endif
static void
init_backend (void)
{
gboolean session_type_is_wayland = FALSE;
#if defined(HAVE_WAYLAND) && defined(HAVE_NATIVE_BACKEND)
session_type_is_wayland = check_for_wayland_session_type ();
#endif
#if defined(CLUTTER_WINDOWING_EGL) && defined(HAVE_NATIVE_BACKEND)
if (opt_display_server)
if (opt_display_server || session_type_is_wayland)
clutter_set_windowing_backend (CLUTTER_WINDOWING_EGL);
else
#endif
clutter_set_windowing_backend (CLUTTER_WINDOWING_X11);
#ifdef HAVE_WAYLAND
meta_set_is_wayland_compositor (opt_wayland);
meta_set_is_wayland_compositor (opt_wayland || session_type_is_wayland);
#endif
}