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xwayland: Don't use abstract socket on non-Linux systems

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Abstract socket is a Linux-only feature. On operating systems other than
Linux, we can only use the normal UNIX socket.

This patch allows mutter to run as a nested Wayland compositor under
Xorg on FreeBSD.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/954
This commit is contained in:
Ting-Wei Lan 2019-12-02 23:27:55 +08:00
parent 5dfd86ebe7
commit 819eeeb591
2 changed files with 29 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/wayland/meta-wayland-private.h
View File

@ -46,7 +46,9 @@ typedef struct
{
int display_index;
char *lock_file;
#ifdef __linux__
int abstract_fd;
#endif
int unix_fd;
char *name;
} MetaXWaylandConnection;

28
src/wayland/meta-xwayland.c
View File

@ -235,6 +235,7 @@ create_lock_file (int display, int *display_out)
return filename;
}
#ifdef __linux__
static int
bind_to_abstract_socket (int display,
gboolean *fatal)
@ -274,6 +275,7 @@ bind_to_abstract_socket (int display,
return fd;
}
#endif
static int
bind_to_unix_socket (int display)
@ -385,22 +387,31 @@ open_display_sockets (MetaXWaylandManager *manager,
int *unix_fd_out,
gboolean *fatal)
{
int abstract_fd, unix_fd;
#ifdef __linux__
int abstract_fd;
#endif
int unix_fd;
#ifdef __linux__
abstract_fd = bind_to_abstract_socket (display_index,
fatal);
if (abstract_fd < 0)
return FALSE;
#endif
unix_fd = bind_to_unix_socket (display_index);
if (unix_fd < 0)
{
*fatal = FALSE;
#ifdef __linux__
close (abstract_fd);
#endif
return FALSE;
}
#ifdef __linux__
*abstract_fd_out = abstract_fd;
#endif
*unix_fd_out = unix_fd;
return TRUE;
@ -617,10 +628,15 @@ meta_xwayland_start_xserver (MetaXWaylandManager *manager,
launcher = g_subprocess_launcher_new (flags);
g_subprocess_launcher_take_fd (launcher, xwayland_client_fd[1], 3);
#ifdef __linux__
g_subprocess_launcher_take_fd (launcher, manager->public_connection.abstract_fd, 4);
g_subprocess_launcher_take_fd (launcher, manager->public_connection.unix_fd, 5);
g_subprocess_launcher_take_fd (launcher, displayfd[1], 6);
g_subprocess_launcher_take_fd (launcher, manager->private_connection.abstract_fd, 7);
#else
g_subprocess_launcher_take_fd (launcher, manager->public_connection.unix_fd, 4);
g_subprocess_launcher_take_fd (launcher, displayfd[1], 5);
#endif
g_subprocess_launcher_setenv (launcher, "WAYLAND_SOCKET", "3", TRUE);
@ -632,6 +648,7 @@ meta_xwayland_start_xserver (MetaXWaylandManager *manager,
"-accessx",
"-core",
"-auth", manager->auth_file,
#ifdef __linux__
"-listen", "4",
"-listen", "5",
"-displayfd", "6",
@ -640,6 +657,10 @@ meta_xwayland_start_xserver (MetaXWaylandManager *manager,
#else
"-listen", "7",
#endif
#else /* __linux__ */
"-listen", "4",
"-displayfd", "5",
#endif /* __linux__ */
NULL);
if (!manager->proc)
@ -774,8 +795,13 @@ meta_xwayland_init (MetaXWaylandManager *manager,
if (policy == META_DISPLAY_POLICY_ON_DEMAND)
{
#ifdef __linux__
g_unix_fd_add (manager->public_connection.abstract_fd, G_IO_IN,
xdisplay_connection_activity_cb, manager);
#else
g_unix_fd_add (manager->public_connection.unix_fd, G_IO_IN,
xdisplay_connection_activity_cb, manager);
#endif
}
return TRUE;