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wayland: add TTY and DRM master management

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Now that we have a setuid launcher binary, we can make use of
using a private protocol through the socket we're passed at startup.

We also use the new hook in clutter-evdev to ask mutter-launch for
the FDs of the input devices we need, and we emulate the old X
DRM lock with a nested GMainContext without sources.

In the future, mutter-launch will be replaced with the new logind
API currently in development.

https://bugzilla.gnome.org/show_bug.cgi?id=705861
This commit is contained in:
Giovanni Campagna
2013-08-19 14:57:16 +02:00
parent 96fa518576
commit e72f81c24f
9 changed files with 630 additions and 105 deletions
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70
src/core/main.c
View File

@@ -58,6 +58,7 @@
#include "meta-wayland-private.h"
#include <glib-object.h>
#include <glib-unix.h>
#include <gdk/gdkx.h>
#include <stdlib.h>
@@ -352,59 +353,12 @@ meta_finalize (void)
meta_wayland_finalize ();
}
static int signal_pipe_fds[2] = { -1, -1 };
static void
signal_handler (int signum)
{
if (signal_pipe_fds[1] >= 0)
{
switch (signum)
{
case SIGTERM:
write (signal_pipe_fds[1], "T", 1);
break;
default:
break;
}
}
}
static gboolean
on_signal (GIOChannel *source,
GIOCondition condition,
void *data)
on_sigterm (gpointer user_data)
{
char signal;
int count;
meta_quit (EXIT_SUCCESS);
for (;;)
{
count = read (signal_pipe_fds[0], &signal, 1);
if (count == EINTR)
continue;
if (count < 0)
{
const char *msg = strerror (errno);
g_warning ("Error handling signal: %s", msg);
}
if (count != 1)
{
g_warning ("Unexpectedly failed to read byte from signal pipe\n");
return TRUE;
}
break;
}
switch (signal)
{
case 'T': /* SIGTERM */
meta_quit (META_EXIT_SUCCESS);
break;
default:
g_warning ("Spurious character '%c' read from signal pipe", signal);
}
return TRUE;
return G_SOURCE_REMOVE;
}
/**
@@ -418,7 +372,6 @@ meta_init (void)
{
struct sigaction act;
sigset_t empty_mask;
GIOChannel *channel;
sigemptyset (&empty_mask);
act.sa_handler = SIG_IGN;
@@ -433,20 +386,7 @@ meta_init (void)
g_strerror (errno));
#endif
if (pipe (signal_pipe_fds) != 0)
g_printerr ("Failed to create signal pipe: %s\n",
g_strerror (errno));
channel = g_io_channel_unix_new (signal_pipe_fds[0]);
g_io_channel_set_flags (channel, G_IO_FLAG_NONBLOCK, NULL);
g_io_add_watch (channel, G_IO_IN, (GIOFunc) on_signal, NULL);
g_io_channel_set_close_on_unref (channel, TRUE);
g_io_channel_unref (channel);
act.sa_handler = &signal_handler;
if (sigaction (SIGTERM, &act, NULL) < 0)
g_printerr ("Failed to register SIGTERM handler: %s\n",
g_strerror (errno));
g_unix_signal_add (SIGTERM, on_sigterm, NULL);
if (g_getenv ("MUTTER_VERBOSE"))
meta_set_verbose (TRUE);