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weston-launch: Allow activating our own VT by passing a negative value

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This will be used to implement activate_session.
This commit is contained in:
Jasper St. Pierre 2014-03-11 17:12:54 -04:00
parent 7314cdac94
commit 394af33607
2 changed files with 12 additions and 5 deletions
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15
src/wayland/weston-launch.c
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@ -80,6 +80,7 @@ struct weston_launch {
struct termios terminal_attributes;
int kb_mode;
enum vt_state vt_state;
unsigned vt;
int drm_fd;
};
@ -274,6 +275,7 @@ handle_activate_vt(struct weston_launch *wl, struct msghdr *msg, ssize_t len)
{
struct weston_launcher_reply reply;
struct weston_launcher_activate_vt *message;
unsigned vt;
reply.header.opcode = WESTON_LAUNCHER_ACTIVATE_VT;
reply.ret = -1;
@ -285,7 +287,13 @@ handle_activate_vt(struct weston_launch *wl, struct msghdr *msg, ssize_t len)
message = msg->msg_iov->iov_base;
reply.ret = ioctl(wl->tty, VT_ACTIVATE, message->vt);
/* Negative values mean that we're activating our own VT */
if (message->vt > 0)
vt = message->vt;
else
vt = wl->vt;
reply.ret = ioctl(wl->tty, VT_ACTIVATE, vt);
if (reply.ret < 0)
reply.ret = -errno;
@ -553,7 +561,6 @@ setup_tty(struct weston_launch *wl)
struct termios raw_attributes;
struct vt_mode mode = { 0 };
char *session;
unsigned vt;
char path[PATH_MAX];
int ok;
@ -561,11 +568,11 @@ setup_tty(struct weston_launch *wl)
if (ok < 0)
error(1, -ok, "could not determine current session");
ok = sd_session_get_vt(session, &vt);
ok = sd_session_get_vt(session, &wl->vt);
if (ok < 0)
error(1, -ok, "could not determine current TTY");
snprintf(path, PATH_MAX, "/dev/tty%u", vt);
snprintf(path, PATH_MAX, "/dev/tty%u", wl->vt);
wl->tty = open(path, O_RDWR | O_NOCTTY | O_CLOEXEC);
if (wl->tty < 0)

2
src/wayland/weston-launch.h
View File

@ -53,7 +53,7 @@ struct weston_launcher_open {
struct weston_launcher_activate_vt {
struct weston_launcher_message header;
int vt;
signed char vt;
};
struct weston_launcher_reply {