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backend/session: Remove direct backend

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This is instead delegated to libseat.
master
Kenny Levinsen 4 years ago committed by Simon Ser
parent 95b657ba80
commit d037c2dddc
7 changed files with 1 additions and 871 deletions
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319
backend/session/direct-freebsd.c
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@ -1,319 +0,0 @@
#include <assert.h>
#include <linux/input.h>
#include <errno.h>
#include <fcntl.h>
#include <signal.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/consio.h>
#include <sys/ioctl.h>
#include <sys/kbio.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <termios.h>
#include <unistd.h>
#include <wayland-server-core.h>
#include <wlr/backend/session/interface.h>
#include <wlr/util/log.h>
#include <xf86drm.h>
#include "backend/session/direct-ipc.h"
#include "backend/session/session.h"
#include "util/signal.h"
const struct session_impl session_direct;
struct direct_session {
struct wlr_session base;
int tty_fd;
int old_tty;
int old_kbmode;
int sock;
pid_t child;
struct wl_event_source *vt_source;
};
static struct direct_session *direct_session_from_session(
struct wlr_session *base) {
assert(base->impl == &session_direct);
return (struct direct_session *)base;
}
static int direct_session_open(struct wlr_session *base, const char *path) {
struct direct_session *session = direct_session_from_session(base);
int fd = direct_ipc_open(session->sock, path);
if (fd < 0) {
wlr_log(WLR_ERROR, "Failed to open %s: %s%s", path, strerror(-fd),
fd == -EINVAL ? "; is another display server running?" : "");
return fd;
}
return fd;
}
static void direct_session_close(struct wlr_session *base, int fd) {
struct direct_session *session = direct_session_from_session(base);
int ev;
struct drm_version dv = {0};
if (ioctl(fd, DRM_IOCTL_VERSION, &dv) == 0) {
direct_ipc_dropmaster(session->sock, fd);
} else if (ioctl(fd, EVIOCGVERSION, &ev) == 0) {
ioctl(fd, EVIOCREVOKE, 0);
}
close(fd);
}
static bool direct_change_vt(struct wlr_session *base, unsigned vt) {
struct direct_session *session = direct_session_from_session(base);
// Only seat0 has VTs associated with it
if (strcmp(session->base.seat, "seat0") != 0) {
return true;
}
return ioctl(session->tty_fd, VT_ACTIVATE, (int)vt) == 0;
}
static void direct_session_destroy(struct wlr_session *base) {
struct direct_session *session = direct_session_from_session(base);
if (strcmp(session->base.seat, "seat0") == 0) {
struct vt_mode mode = {
.mode = VT_AUTO,
};
errno = 0;
ioctl(session->tty_fd, KDSKBMODE, session->old_kbmode);
ioctl(session->tty_fd, KDSETMODE, KD_TEXT);
ioctl(session->tty_fd, VT_SETMODE, &mode);
ioctl(session->tty_fd, VT_ACTIVATE, session->old_tty);
if (errno) {
wlr_log(WLR_ERROR, "Failed to restore tty");
}
wl_event_source_remove(session->vt_source);
close(session->tty_fd);
}
direct_ipc_finish(session->sock, session->child);
close(session->sock);
free(session);
}
static int vt_handler(int signo, void *data) {
struct direct_session *session = data;
struct drm_version dv = {0};
struct wlr_device *dev;
if (session->base.active) {
session->base.active = false;
wlr_signal_emit_safe(&session->base.events.active, NULL);
wl_list_for_each(dev, &session->base.devices, link) {
if (ioctl(dev->fd, DRM_IOCTL_VERSION, &dv) == 0) {
direct_ipc_dropmaster(session->sock, dev->fd);
}
}
ioctl(session->tty_fd, VT_RELDISP, 1);
} else {
ioctl(session->tty_fd, VT_RELDISP, VT_ACKACQ);
wl_list_for_each(dev, &session->base.devices, link) {
if (ioctl(dev->fd, DRM_IOCTL_VERSION, &dv) == 0) {
direct_ipc_setmaster(session->sock, dev->fd);
}
}
session->base.active = true;
wlr_signal_emit_safe(&session->base.events.active, NULL);
}
return 1;
}
static bool get_tty_path(int tty, char path[static 11], size_t len) {
assert(tty > 0);
const char prefix[] = "/dev/ttyv";
static_assert(sizeof(prefix) + 1 <= 11, "TTY path prefix is too long");
const size_t prefix_len = sizeof(prefix) - 1;
strcpy(path, prefix);
size_t offset = prefix_len;
const int num = tty - 1;
if (num == 0) {
path[offset++] = '0';
path[offset++] = '\0';
return true;
}
const int base = 32;
for (int remaning = num; remaning > 0; remaning /= base, offset++) {
// Return early if the buffer is too small.
if (offset + 1 >= len) {
return false;
}
const int value = remaning % base;
if (value >= 10) {
path[offset] = 'a' + value - 10;
} else {
path[offset] = '0' + value;
}
}
const size_t num_len = offset - prefix_len;
for (size_t i = 0; i < num_len / 2; i++) {
const size_t p1 = prefix_len + i;
const size_t p2 = offset - 1 - i;
const char tmp = path[p1];
path[p1] = path[p2];
path[p2] = tmp;
}
path[offset++] = '\0';
return true;
}
static bool setup_tty(struct direct_session *session, struct wl_display *display) {
int fd = -1, tty = -1, tty0_fd = -1, old_tty = 1;
if ((tty0_fd = open("/dev/ttyv0", O_RDWR | O_CLOEXEC)) < 0) {
wlr_log_errno(WLR_ERROR, "Could not open /dev/ttyv0 to find a free vt");
goto error;
}
if (ioctl(tty0_fd, VT_GETACTIVE, &old_tty) != 0) {
wlr_log_errno(WLR_ERROR, "Could not get active vt");
goto error;
}
if (ioctl(tty0_fd, VT_OPENQRY, &tty) != 0) {
wlr_log_errno(WLR_ERROR, "Could not find a free vt");
goto error;
}
close(tty0_fd);
char tty_path[64];
if (!get_tty_path(tty, tty_path, sizeof(tty_path))) {
wlr_log(WLR_ERROR, "Could not get tty %d path", tty);
goto error;
}
wlr_log(WLR_INFO, "Using tty %s", tty_path);
fd = open(tty_path, O_RDWR | O_NOCTTY | O_CLOEXEC);
if (fd == -1) {
wlr_log_errno(WLR_ERROR, "Cannot open tty");
return false;
}
ioctl(fd, VT_ACTIVATE, tty);
ioctl(fd, VT_WAITACTIVE, tty);
int old_kbmode;
if (ioctl(fd, KDGKBMODE, &old_kbmode)) {
wlr_log_errno(WLR_ERROR, "Failed to read tty %d keyboard mode", tty);
goto error;
}
if (ioctl(fd, KDSKBMODE, K_CODE)) {
wlr_log_errno(WLR_ERROR,
"Failed to set keyboard mode K_CODE on tty %d", tty);
goto error;
}
if (ioctl(fd, KDSETMODE, KD_GRAPHICS)) {
wlr_log_errno(WLR_ERROR, "Failed to set graphics mode on tty %d", tty);
goto error;
}
struct vt_mode mode = {
.mode = VT_PROCESS,
.relsig = SIGUSR2,
.acqsig = SIGUSR2,
.frsig = SIGIO, // has to be set
};
if (ioctl(fd, VT_SETMODE, &mode) < 0) {
wlr_log(WLR_ERROR, "Failed to take control of tty %d", tty);
goto error;
}
struct wl_event_loop *loop = wl_display_get_event_loop(display);
session->vt_source = wl_event_loop_add_signal(loop, SIGUSR2,
vt_handler, session);
if (!session->vt_source) {
goto error;
}
session->base.vtnr = tty;
session->tty_fd = fd;
session->old_tty = old_tty;
session->old_kbmode = old_kbmode;
return true;
error:
// In case we could not get the last active one, drop back to tty 1,
// better than hanging in a useless blank console. Otherwise activate the
// last active.
ioctl(fd, VT_ACTIVATE, old_tty);
close(fd);
return false;
}
static struct wlr_session *direct_session_create(struct wl_display *disp) {
struct direct_session *session = calloc(1, sizeof(*session));
if (!session) {
wlr_log_errno(WLR_ERROR, "Allocation failed");
return NULL;
}
session_init(&session->base);
session->sock = direct_ipc_init(&session->child);
if (session->sock == -1) {
goto error_session;
}
const char *seat = getenv("XDG_SEAT");
if (!seat) {
seat = "seat0";
}
if (strcmp(seat, "seat0") == 0) {
if (!setup_tty(session, disp)) {
goto error_ipc;
}
} else {
session->base.vtnr = 0;
session->tty_fd = -1;
}
wlr_log(WLR_INFO, "Successfully loaded direct session");
snprintf(session->base.seat, sizeof(session->base.seat), "%s", seat);
session->base.impl = &session_direct;
session->base.active = true;
return &session->base;
error_ipc:
direct_ipc_finish(session->sock, session->child);
close(session->sock);
error_session:
free(session);
return NULL;
}
const struct session_impl session_direct = {
.create = direct_session_create,
.destroy = direct_session_destroy,
.open = direct_session_open,
.close = direct_session_close,
.change_vt = direct_change_vt,
};

237
backend/session/direct-ipc.c
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#define _POSIX_C_SOURCE 200809L
#ifdef __FreeBSD__
#define __BSD_VISIBLE 1
#include <linux/input.h>
#endif
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>
#include <wlr/config.h>
#include <wlr/util/log.h>
#include <xf86drm.h>
#ifdef __linux__
#include <sys/sysmacros.h>
#include <linux/major.h>
#endif
#include "backend/session/direct-ipc.h"
enum { DRM_MAJOR = 226 };
static void send_msg(int sock, int fd, void *buf, size_t buf_len) {
char control[CMSG_SPACE(sizeof(fd))] = {0};
struct iovec iovec = { .iov_base = buf, .iov_len = buf_len };
struct msghdr msghdr = {0};
if (buf) {
msghdr.msg_iov = &iovec;
msghdr.msg_iovlen = 1;
}
if (fd >= 0) {
msghdr.msg_control = &control;
msghdr.msg_controllen = sizeof(control);
struct cmsghdr *cmsg = CMSG_FIRSTHDR(&msghdr);
*cmsg = (struct cmsghdr) {
.cmsg_level = SOL_SOCKET,
.cmsg_type = SCM_RIGHTS,
.cmsg_len = CMSG_LEN(sizeof(fd)),
};
memcpy(CMSG_DATA(cmsg), &fd, sizeof(fd));
}
ssize_t ret;
do {
ret = sendmsg(sock, &msghdr, 0);
} while (ret < 0 && errno == EINTR);
}
static ssize_t recv_msg(int sock, int *fd_out, void *buf, size_t buf_len) {
char control[CMSG_SPACE(sizeof(*fd_out))] = {0};
struct iovec iovec = { .iov_base = buf, .iov_len = buf_len };
struct msghdr msghdr = {0};
if (buf) {
msghdr.msg_iov = &iovec;
msghdr.msg_iovlen = 1;
}
if (fd_out) {
msghdr.msg_control = &control;
msghdr.msg_controllen = sizeof(control);
}
ssize_t ret;
do {
ret = recvmsg(sock, &msghdr, MSG_CMSG_CLOEXEC);
} while (ret < 0 && errno == EINTR);
if (fd_out) {
struct cmsghdr *cmsg = CMSG_FIRSTHDR(&msghdr);
if (cmsg) {
memcpy(fd_out, CMSG_DATA(cmsg), sizeof(*fd_out));
} else {
*fd_out = -1;
}
}
return ret;
}
enum msg_type {
MSG_OPEN,
MSG_SETMASTER,
MSG_DROPMASTER,
MSG_END,
};
struct msg {
enum msg_type type;
char path[256];
};
static void communicate(int sock) {
struct msg msg;
int drm_fd = -1;
bool running = true;
while (running && recv_msg(sock, &drm_fd, &msg, sizeof(msg)) > 0) {
switch (msg.type) {
case MSG_OPEN:
errno = 0;
// These are the same flags that logind opens files with
int fd = open(msg.path, O_RDWR|O_CLOEXEC|O_NOCTTY|O_NONBLOCK);
int ret = errno;
if (fd == -1) {
goto error;
}
#ifndef __FreeBSD__
struct stat st;
if (fstat(fd, &st) < 0) {
ret = errno;
goto error;
}
uint32_t maj = major(st.st_rdev);
if (maj != INPUT_MAJOR && maj != DRM_MAJOR) {
ret = ENOTSUP;
goto error;
}
if (maj == DRM_MAJOR && drmSetMaster(fd)) {
ret = errno;
}
#else
int ev;
struct drm_version dv = {0};
if (ioctl(fd, EVIOCGVERSION, &ev) == -1 &&
ioctl(fd, DRM_IOCTL_VERSION, &dv) == -1) {
ret = ENOTSUP;
goto error;
}
if (dv.version_major != 0 && drmSetMaster(fd)) {
ret = errno;
}
#endif
error:
send_msg(sock, ret ? -1 : fd, &ret, sizeof(ret));
if (fd >= 0) {
close(fd);
}
break;
case MSG_SETMASTER:
drmSetMaster(drm_fd);
close(drm_fd);
send_msg(sock, -1, NULL, 0);
break;
case MSG_DROPMASTER:
drmDropMaster(drm_fd);
close(drm_fd);
send_msg(sock, -1, NULL, 0);
break;
case MSG_END:
running = false;
send_msg(sock, -1, NULL, 0);
break;
}
}
close(sock);
}
int direct_ipc_open(int sock, const char *path) {
struct msg msg = { .type = MSG_OPEN };
snprintf(msg.path, sizeof(msg.path), "%s", path);
send_msg(sock, -1, &msg, sizeof(msg));
int fd, err, ret;
int retry = 0;
do {
ret = recv_msg(sock, &fd, &err, sizeof(err));
} while (ret == 0 && retry++ < 3);
return err ? -err : fd;
}
void direct_ipc_setmaster(int sock, int fd) {
struct msg msg = { .type = MSG_SETMASTER };
send_msg(sock, fd, &msg, sizeof(msg));
recv_msg(sock, NULL, NULL, 0);
}
void direct_ipc_dropmaster(int sock, int fd) {
struct msg msg = { .type = MSG_DROPMASTER };
send_msg(sock, fd, &msg, sizeof(msg));
recv_msg(sock, NULL, NULL, 0);
}
void direct_ipc_finish(int sock, pid_t pid) {
struct msg msg = { .type = MSG_END };
send_msg(sock, -1, &msg, sizeof(msg));
recv_msg(sock, NULL, NULL, 0);
waitpid(pid, NULL, 0);
}
int direct_ipc_init(pid_t *pid_out) {
int sock[2];
if (socketpair(AF_UNIX, SOCK_SEQPACKET, 0, sock) < 0) {
wlr_log_errno(WLR_ERROR, "Failed to create socket pair");
return -1;
}
pid_t pid = fork();
if (pid < 0) {
wlr_log_errno(WLR_ERROR, "Fork failed");
close(sock[0]);
close(sock[1]);
return -1;
} else if (pid == 0) {
close(sock[0]);
communicate(sock[1]);
_Exit(0);
}
close(sock[1]);
*pid_out = pid;
return sock[0];
}

291
backend/session/direct.c
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@ -1,291 +0,0 @@
#define _POSIX_C_SOURCE 200809L
#include <assert.h>
#include <errno.h>
#include <fcntl.h>
#include <linux/input.h>
#include <linux/kd.h>
#include <linux/major.h>
#include <linux/vt.h>
#include <signal.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <sys/sysmacros.h>
#include <unistd.h>
#include <wayland-server-core.h>
#include <wlr/backend/session/interface.h>
#include <wlr/util/log.h>
#include "backend/session/direct-ipc.h"
#include "backend/session/session.h"
#include "util/signal.h"
enum { DRM_MAJOR = 226 };
const struct session_impl session_direct;
struct direct_session {
struct wlr_session base;
int tty_fd;
int old_kbmode;
int sock;
pid_t child;
struct wl_event_source *vt_source;
};
static struct direct_session *direct_session_from_session(
struct wlr_session *base) {
assert(base->impl == &session_direct);
return (struct direct_session *)base;
}
static int direct_session_open(struct wlr_session *base, const char *path) {
struct direct_session *session = direct_session_from_session(base);
int fd = direct_ipc_open(session->sock, path);
if (fd < 0) {
wlr_log(WLR_ERROR, "Failed to open %s: %s%s", path, strerror(-fd),
fd == -EINVAL ? "; is another display server running?" : "");
return fd;
}
struct stat st;
if (fstat(fd, &st) < 0) {
close(fd);
return -errno;
}
if (major(st.st_rdev) == DRM_MAJOR) {
direct_ipc_setmaster(session->sock, fd);
}
return fd;
}
static void direct_session_close(struct wlr_session *base, int fd) {
struct direct_session *session = direct_session_from_session(base);
struct stat st;
if (fstat(fd, &st) < 0) {
wlr_log_errno(WLR_ERROR, "Stat failed");
close(fd);
return;
}
if (major(st.st_rdev) == DRM_MAJOR) {
direct_ipc_dropmaster(session->sock, fd);
} else if (major(st.st_rdev) == INPUT_MAJOR) {
ioctl(fd, EVIOCREVOKE, 0);
}
close(fd);
}
static bool direct_change_vt(struct wlr_session *base, unsigned vt) {
struct direct_session *session = direct_session_from_session(base);
// Only seat0 has VTs associated with it
if (strcmp(session->base.seat, "seat0") != 0) {
return true;
}
return ioctl(session->tty_fd, VT_ACTIVATE, (int)vt) == 0;
}
static void direct_session_destroy(struct wlr_session *base) {
struct direct_session *session = direct_session_from_session(base);
if (strcmp(session->base.seat, "seat0") == 0) {
struct vt_mode mode = {
.mode = VT_AUTO,
};
errno = 0;
ioctl(session->tty_fd, KDSKBMODE, session->old_kbmode);
ioctl(session->tty_fd, KDSETMODE, KD_TEXT);
ioctl(session->tty_fd, VT_SETMODE, &mode);
if (errno) {
wlr_log(WLR_ERROR, "Failed to restore tty");
}
wl_event_source_remove(session->vt_source);
close(session->tty_fd);
}
direct_ipc_finish(session->sock, session->child);
close(session->sock);
free(session);
}
static int vt_handler(int signo, void *data) {
struct direct_session *session = data;
if (session->base.active) {
session->base.active = false;
wlr_signal_emit_safe(&session->base.events.active, NULL);
struct wlr_device *dev;
wl_list_for_each(dev, &session->base.devices, link) {
if (major(dev->dev) == DRM_MAJOR) {
direct_ipc_dropmaster(session->sock,
dev->fd);
}
}
ioctl(session->tty_fd, VT_RELDISP, 1);
} else {
ioctl(session->tty_fd, VT_RELDISP, VT_ACKACQ);
struct wlr_device *dev;
wl_list_for_each(dev, &session->base.devices, link) {
if (major(dev->dev) == DRM_MAJOR) {
direct_ipc_setmaster(session->sock,
dev->fd);
}
}
session->base.active = true;
wlr_signal_emit_safe(&session->base.events.active, NULL);
}
return 1;
}
static bool setup_tty(struct direct_session *session, struct wl_display *display) {
bool default_tty = false;
const char *tty_path = getenv("WLR_DIRECT_TTY");
if (!tty_path) {
tty_path = "/dev/tty";
default_tty = true;
}
int fd = open(tty_path, O_RDWR | O_CLOEXEC);
if (fd == -1) {
wlr_log_errno(WLR_ERROR, "Cannot open %s", tty_path);
return false;
}
struct vt_stat vt_stat;
if (ioctl(fd, VT_GETSTATE, &vt_stat)) {
wlr_log_errno(WLR_ERROR, "Could not get current tty number");
goto error;
}
int tty = vt_stat.v_active;
int ret, kd_mode, old_kbmode;
ret = ioctl(fd, KDGETMODE, &kd_mode);
if (ret) {
wlr_log_errno(WLR_ERROR, "Failed to get tty mode");
goto error;
}
if (default_tty && kd_mode != KD_TEXT) {
wlr_log(WLR_ERROR,
"tty already in graphics mode; is another display server running?");
goto error;
}
ioctl(fd, VT_ACTIVATE, tty);
ioctl(fd, VT_WAITACTIVE, tty);
if (ioctl(fd, KDGKBMODE, &old_kbmode)) {
wlr_log_errno(WLR_ERROR, "Failed to read keyboard mode");
goto error;
}
if (ioctl(fd, KDSKBMODE, K_OFF)) {
wlr_log_errno(WLR_ERROR, "Failed to set keyboard mode");
goto error;
}
if (ioctl(fd, KDSETMODE, KD_GRAPHICS)) {
wlr_log_errno(WLR_ERROR, "Failed to set graphics mode on tty");
goto error;
}
struct vt_mode mode = {
.mode = VT_PROCESS,
.relsig = SIGUSR2,
.acqsig = SIGUSR2,
};
if (ioctl(fd, VT_SETMODE, &mode) < 0) {
wlr_log(WLR_ERROR, "Failed to take control of tty");
goto error;
}
struct wl_event_loop *loop = wl_display_get_event_loop(display);
session->vt_source = wl_event_loop_add_signal(loop, SIGUSR2,
vt_handler, session);
if (!session->vt_source) {
goto error;
}
session->base.vtnr = tty;
session->tty_fd = fd;
session->old_kbmode = old_kbmode;
return true;
error:
close(fd);
return false;
}
static struct wlr_session *direct_session_create(struct wl_display *disp) {
struct direct_session *session = calloc(1, sizeof(*session));
if (!session) {
wlr_log_errno(WLR_ERROR, "Allocation failed");
return NULL;
}
session_init(&session->base);
session->sock = direct_ipc_init(&session->child);
if (session->sock == -1) {
goto error_session;
}
const char *seat = getenv("XDG_SEAT");
if (!seat) {
seat = "seat0";
}
if (strcmp(seat, "seat0") == 0) {
if (!setup_tty(session, disp)) {
goto error_ipc;
}
} else {
session->base.vtnr = 0;
session->tty_fd = -1;
}
snprintf(session->base.seat, sizeof(session->base.seat), "%s", seat);
session->base.impl = &session_direct;
session->base.active = true;
wlr_log(WLR_INFO, "Successfully loaded direct session");
return &session->base;
error_ipc:
direct_ipc_finish(session->sock, session->child);
close(session->sock);
error_session:
free(session);
return NULL;
}
const struct session_impl session_direct = {
.create = direct_session_create,
.destroy = direct_session_destroy,
.open = direct_session_open,
.close = direct_session_close,
.change_vt = direct_change_vt,
};

7
backend/session/meson.build
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@ -5,16 +5,9 @@ libseat = dependency('libseat',
)
wlr_files += files(
'direct-ipc.c',
'noop.c',
'session.c',
'libseat.c'
)
if host_machine.system().startswith('freebsd')
wlr_files += files('direct-freebsd.c')
else
wlr_files += files('direct.c')
endif
wlr_deps += libseat

4
backend/session/session.c
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@ -21,12 +21,10 @@
#define WAIT_GPU_TIMEOUT 10000 // ms
extern const struct session_impl session_libseat;
extern const struct session_impl session_direct;
extern const struct session_impl session_noop;
static const struct session_impl *const impls[] = {
&session_libseat,
&session_direct,
NULL,
};
@ -111,8 +109,6 @@ struct wlr_session *wlr_session_create(struct wl_display *disp) {
if (env_wlr_session) {
if (strcmp(env_wlr_session, "libseat") == 0) {
session = session_libseat.create(disp);
} else if (strcmp(env_wlr_session, "direct") == 0) {
session = session_direct.create(disp);
} else if (strcmp(env_wlr_session, "noop") == 0) {
session = session_noop.create(disp);
} else {

2
docs/env_vars.md
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@ -7,7 +7,7 @@ wlroots reads these environment variables
* *WLR_NO_HARDWARE_CURSORS*: set to 1 to use software cursors instead of
hardware cursors
* *WLR_SESSION*: specifies the `wlr_session` to be used (available sessions:
libseat, direct)
libseat)
* *WLR_DIRECT_TTY*: specifies the tty to be used (instead of using /dev/tty)
* *WLR_XWAYLAND*: specifies the path to an Xwayland binary to be used (instead
of following shell search semantics for "Xwayland")

12
include/backend/session/direct-ipc.h
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@ -1,12 +0,0 @@
#ifndef BACKEND_SESSION_DIRECT_IPC_H
#define BACKEND_SESSION_DIRECT_IPC_H
#include <sys/types.h>
int direct_ipc_open(int sock, const char *path);
void direct_ipc_setmaster(int sock, int fd);
void direct_ipc_dropmaster(int sock, int fd);
void direct_ipc_finish(int sock, pid_t pid);
int direct_ipc_init(pid_t *pid_out);
#endif
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