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xwayland: fix style issues

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This commit is contained in:
Dominique Martinet 2017-08-20 19:50:28 +02:00
parent a39b091bd9
commit 3391e5b634
4 changed files with 66 additions and 40 deletions
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81
xwayland/xwayland.c
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@ -1,5 +1,5 @@
#define _XOPEN_SOURCE 700
#define _GNU_SOURCE
#define _DEFAULT_SOURCE
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
@ -7,6 +7,7 @@
#include <signal.h>
#include <sys/socket.h>
#include <time.h>
#include <stdlib.h>
#include <errno.h>
#include <wayland-server.h>
#include "wlr/util/log.h"
@ -28,6 +29,27 @@ static int unset_cloexec(int fd) {
return 0;
}
static int fill_arg(char ***argv, const char *fmt, ...) {
int len;
char **cur_arg = *argv;
va_list args;
va_start(args, fmt);
len = vsnprintf(NULL, 0, fmt, args) + 1;
va_end(args);
while (*cur_arg) {
cur_arg++;
}
*cur_arg = malloc(len);
if (!*cur_arg) {
return -1;
}
*argv = cur_arg;
va_start(args, fmt);
len = vsnprintf(*cur_arg, len, fmt, args);
va_end(args);
return len;
}
static void exec_xwayland(struct wlr_xwayland *wlr_xwayland) {
if (unset_cloexec(wlr_xwayland->x_fd[0]) ||
unset_cloexec(wlr_xwayland->x_fd[1]) ||
@ -39,27 +61,20 @@ static void exec_xwayland(struct wlr_xwayland *wlr_xwayland) {
/* Make Xwayland signal us when it's ready */
signal(SIGUSR1, SIG_IGN);
char *argv[11] = { 0 };
argv[0] = "Xwayland";
if (asprintf(&argv[1], ":%d", wlr_xwayland->display) < 0) {
wlr_log_errno(L_ERROR, "asprintf failed");
exit(EXIT_FAILURE);
}
argv[2] = "-rootless";
argv[3] = "-terminate";
argv[4] = "-listen";
if (asprintf(&argv[5], "%d", wlr_xwayland->x_fd[0]) < 0) {
wlr_log_errno(L_ERROR, "asprintf failed");
exit(EXIT_FAILURE);
}
argv[6] = "-listen";
if (asprintf(&argv[7], "%d", wlr_xwayland->x_fd[1]) < 0) {
wlr_log_errno(L_ERROR, "asprintf failed");
exit(EXIT_FAILURE);
}
argv[8] = "-wm";
if (asprintf(&argv[9], "%d", wlr_xwayland->wm_fd[1]) < 0) {
wlr_log_errno(L_ERROR, "asprintf failed");
char *argv[] = {
"Xwayland", NULL /* display, e.g. :1 */,
"-rootless", "-terminate",
"-listen", NULL /* x_fd[0] */,
"-listen", NULL /* x_fd[1] */,
"-wm", NULL /* wm_fd[1] */,
NULL };
char **cur_arg = argv;
if (fill_arg(&cur_arg, ":%d", wlr_xwayland->display) < 0 ||
fill_arg(&cur_arg, "%d", wlr_xwayland->x_fd[0]) < 0 ||
fill_arg(&cur_arg, "%d", wlr_xwayland->x_fd[1]) < 0 ||
fill_arg(&cur_arg, "%d", wlr_xwayland->wm_fd[1]) < 0) {
wlr_log_errno(L_ERROR, "alloc/print failure");
exit(EXIT_FAILURE);
}
@ -69,12 +84,14 @@ static void exec_xwayland(struct wlr_xwayland *wlr_xwayland) {
exit(EXIT_FAILURE);
}
char *envp[3] = { 0 };
if (asprintf(&envp[0], "XDG_RUNTIME_DIR=%s", xdg_runtime) < 0 ||
asprintf(&envp[1], "WAYLAND_SOCKET=%d", wlr_xwayland->wl_fd[1]) < 0) {
wlr_log_errno(L_ERROR, "asprintf failed");
if (clearenv()) {
wlr_log_errno(L_ERROR, "clearenv failed");
exit(EXIT_FAILURE);
}
setenv("XDG_RUNTIME_DIR", xdg_runtime, true);
char wayland_socket_str[16];
snprintf(wayland_socket_str, sizeof(wayland_socket_str), "%d", wlr_xwayland->wl_fd[1]);
setenv("WAYLAND_SOCKET", wayland_socket_str, true);
wlr_log(L_INFO, "Xwayland :%d -rootless -terminate -listen %d -listen %d -wm %d",
wlr_xwayland->display, wlr_xwayland->x_fd[0], wlr_xwayland->x_fd[1],
@ -82,7 +99,7 @@ static void exec_xwayland(struct wlr_xwayland *wlr_xwayland) {
// TODO: close stdout/err depending on log level
execvpe("Xwayland", argv, envp);
execvp("Xwayland", argv);
}
static bool wlr_xwayland_init(struct wlr_xwayland *wlr_xwayland,
@ -108,7 +125,6 @@ static struct wl_listener xwayland_destroy_listener = {
};
static void wlr_xwayland_finish(struct wlr_xwayland *wlr_xwayland) {
if (wlr_xwayland->client) {
wl_list_remove(&xwayland_destroy_listener.link);
wl_client_destroy(wlr_xwayland->client);
@ -118,6 +134,9 @@ static void wlr_xwayland_finish(struct wlr_xwayland *wlr_xwayland) {
wl_event_source_remove(wlr_xwayland->sigusr1_source);
}
// TODO: destroy all these windows, for now just cleanup
wl_list_init(&wlr_xwayland->displayable_windows);
xwm_destroy(wlr_xwayland->xwm);
safe_close(wlr_xwayland->x_fd[0]);
@ -129,7 +148,9 @@ static void wlr_xwayland_finish(struct wlr_xwayland *wlr_xwayland) {
unlink_display_sockets(wlr_xwayland->display);
unsetenv("DISPLAY");
/* kill Xwayland process? */
/* We do not kill the Xwayland process, it dies because of broken pipe
* after we close our side of the wm/wl fds. This is more reliable than
* trying to kill something that might no longer be Xwayland */
}
static int xserver_handle_ready(int signal_number, void *data) {
@ -150,7 +171,7 @@ static int xserver_handle_ready(int signal_number, void *data) {
snprintf(display_name, sizeof(display_name), ":%d", wlr_xwayland->display);
setenv("DISPLAY", display_name, true);
return 1;
return 1; /* wayland event loop dispatcher's count */
}
static bool wlr_xwayland_init(struct wlr_xwayland *wlr_xwayland,