Remove src/udev

[elogind.git] / src / udev / udev-watch.c

diff --git a/src/udev/udev-watch.c b/src/udev/udev-watch.c
deleted file mode 100644 (file)
index 15b76dd..0000000
--- a/src/udev/udev-watch.c
+++ /dev/null
@@ -1,152 +0,0 @@
-/*
- * Copyright (C) 2004-2012 Kay Sievers <kay@vrfy.org>
- * Copyright (C) 2009 Canonical Ltd.
- * Copyright (C) 2009 Scott James Remnant <scott@netsplit.com>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <errno.h>
-#include <stdio.h>
-#include <dirent.h>
-#include <stddef.h>
-#include <unistd.h>
-#include <sys/inotify.h>
-
-#include "udev.h"
-
-static int inotify_fd = -1;
-
-/* inotify descriptor, will be shared with rules directory;
- * set to cloexec since we need our children to be able to add
- * watches for us
- */
-int udev_watch_init(struct udev *udev) {
-        inotify_fd = inotify_init1(IN_CLOEXEC);
-        if (inotify_fd < 0)
-                log_error_errno(errno, "inotify_init failed: %m");
-        return inotify_fd;
-}
-
-/* move any old watches directory out of the way, and then restore
- * the watches
- */
-void udev_watch_restore(struct udev *udev) {
-        if (inotify_fd < 0)
-                return;
-
-        if (rename("/run/udev/watch", "/run/udev/watch.old") == 0) {
-                DIR *dir;
-                struct dirent *ent;
-
-                dir = opendir("/run/udev/watch.old");
-                if (dir == NULL) {
-                        log_error_errno(errno, "unable to open old watches dir /run/udev/watch.old; old watches will not be restored: %m");
-                        return;
-                }
-
-                for (ent = readdir(dir); ent != NULL; ent = readdir(dir)) {
-                        char device[UTIL_PATH_SIZE];
-                        ssize_t len;
-                        struct udev_device *dev;
-
-                        if (ent->d_name[0] == '.')
-                                continue;
-
-                        len = readlinkat(dirfd(dir), ent->d_name, device, sizeof(device));
-                        if (len <= 0 || len == (ssize_t)sizeof(device))
-                                goto unlink;
-                        device[len] = '\0';
-
-                        dev = udev_device_new_from_device_id(udev, device);
-                        if (dev == NULL)
-                                goto unlink;
-
-                        log_debug("restoring old watch on '%s'", udev_device_get_devnode(dev));
-                        udev_watch_begin(udev, dev);
-                        udev_device_unref(dev);
-unlink:
-                        unlinkat(dirfd(dir), ent->d_name, 0);
-                }
-
-                closedir(dir);
-                rmdir("/run/udev/watch.old");
-
-        } else if (errno != ENOENT) {
-                log_error_errno(errno, "unable to move watches dir /run/udev/watch; old watches will not be restored: %m");
-        }
-}
-
-void udev_watch_begin(struct udev *udev, struct udev_device *dev) {
-        char filename[UTIL_PATH_SIZE];
-        int wd;
-        int r;
-
-        if (inotify_fd < 0)
-                return;
-
-        log_debug("adding watch on '%s'", udev_device_get_devnode(dev));
-        wd = inotify_add_watch(inotify_fd, udev_device_get_devnode(dev), IN_CLOSE_WRITE);
-        if (wd < 0) {
-                log_error_errno(errno, "inotify_add_watch(%d, %s, %o) failed: %m",
-                    inotify_fd, udev_device_get_devnode(dev), IN_CLOSE_WRITE);
-                return;
-        }
-
-        snprintf(filename, sizeof(filename), "/run/udev/watch/%d", wd);
-        mkdir_parents(filename, 0755);
-        unlink(filename);
-        r = symlink(udev_device_get_id_filename(dev), filename);
-        if (r < 0)
-                log_error_errno(errno, "Failed to create symlink %s: %m", filename);
-
-        udev_device_set_watch_handle(dev, wd);
-}
-
-void udev_watch_end(struct udev *udev, struct udev_device *dev) {
-        int wd;
-        char filename[UTIL_PATH_SIZE];
-
-        if (inotify_fd < 0)
-                return;
-
-        wd = udev_device_get_watch_handle(dev);
-        if (wd < 0)
-                return;
-
-        log_debug("removing watch on '%s'", udev_device_get_devnode(dev));
-        inotify_rm_watch(inotify_fd, wd);
-
-        snprintf(filename, sizeof(filename), "/run/udev/watch/%d", wd);
-        unlink(filename);
-
-        udev_device_set_watch_handle(dev, -1);
-}
-
-struct udev_device *udev_watch_lookup(struct udev *udev, int wd) {
-        char filename[UTIL_PATH_SIZE];
-        char device[UTIL_NAME_SIZE];
-        ssize_t len;
-
-        if (inotify_fd < 0 || wd < 0)
-                return NULL;
-
-        snprintf(filename, sizeof(filename), "/run/udev/watch/%d", wd);
-        len = readlink(filename, device, sizeof(device));
-        if (len <= 0 || (size_t)len == sizeof(device))
-                return NULL;
-        device[len] = '\0';
-
-        return udev_device_new_from_device_id(udev, device);
-}