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Merge 129a00aa28 into df8e3d819c

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Ferdinand Bachmann 2025-10-21 09:42:52 +01:00 • committed by GitHub
commit 077c0bf1c8
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1 changed files with 52 additions and 1 deletions
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53
src/server.c
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@ -3,6 +3,7 @@
#include "config.h"
#include <signal.h>
#include <string.h>
#include <fcntl.h>
#include <sys/wait.h>
#include <wlr/backend/headless.h>
#include <wlr/backend/multi.h>
@ -725,11 +726,61 @@ server_init(struct server *server)
#endif
}
static const char*
perform_socket_handover(struct server *server)
{
char *socket_name = NULL;
int socket_fd = -1;
/* Parse wayland socket handover environment variables */
if (getenv("WAYLAND_SOCKET_NAME")) {
socket_name = getenv("WAYLAND_SOCKET_NAME");
unsetenv("WAYLAND_SOCKET_NAME");
}
if (getenv("WAYLAND_SOCKET_FD")) {
socket_fd = atoi(getenv("WAYLAND_SOCKET_FD"));
unsetenv("WAYLAND_SOCKET_FD");
fcntl(socket_fd, F_SETFD, FD_CLOEXEC);
}
/* Warn if either environment variable is missing */
if (!socket_name && socket_fd == -1) {
return NULL;
} else if (!socket_name) {
wlr_log(WLR_ERROR,
"Wayland socket handover failed, missing "
"WAYLAND_SOCKET_FD\n");
return NULL;
} else if (socket_fd == -1) {
wlr_log(WLR_ERROR,
"Wayland socket handover failed, missing "
"WAYLAND_SOCKET_NAME\n");
return NULL;
}
/* Add socket to the Wayland display */
if (wl_display_add_socket_fd(server->wl_display, socket_fd) < 0) {
wlr_log(WLR_ERROR,
"Wayland socket handover failed, failed "
"to add socket FD to display\n");
return NULL;
}
return socket_name;
}
void
server_start(struct server *server)
{
/* Attempt Wayland socket handover. */
const char *socket = perform_socket_handover(server);
/* Add a Unix socket to the Wayland display. */
const char *socket = wl_display_add_socket_auto(server->wl_display);
if (!socket) {
socket = wl_display_add_socket_auto(server->wl_display);
}
if (!socket) {
wlr_log_errno(WLR_ERROR, "unable to open wayland socket");
exit(EXIT_FAILURE);