Isolation of udev code from remaining systemd

This commit is a first attempt to isolate the udev code from the
remaining code base.  It intentionally does not modify any files
but purely delete files which, on a first examination, appear to
not be needed.  This is a sweeping commit which may easily have
missed needed code.  Files can be retrieved by doing a checkout
from the previous commit:

 git checkout 2944f347d0 -- <filename>

1 files changed, 0 insertions, 167 deletions

diff --git a/src/core/fdset.c b/src/core/fdset.c
deleted file mode 100644
index fe918cd8cc..0000000000
--- a/src/core/fdset.c
+++ /dev/null
@@ -1,167 +0,0 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
-  This file is part of systemd.
-
-  Copyright 2010 Lennart Poettering
-
-  systemd is free software; you can redistribute it and/or modify it
-  under the terms of the GNU Lesser General Public License as published by
-  the Free Software Foundation; either version 2.1 of the License, or
-  (at your option) any later version.
-
-  systemd 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
-  Lesser General Public License for more details.
-
-  You should have received a copy of the GNU Lesser General Public License
-  along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include <errno.h>
-#include <dirent.h>
-#include <fcntl.h>
-#include <unistd.h>
-
-#include "set.h"
-#include "util.h"
-#include "macro.h"
-#include "fdset.h"
-
-#define MAKE_SET(s) ((Set*) s)
-#define MAKE_FDSET(s) ((FDSet*) s)
-
-/* Make sure we can distuingish fd 0 and NULL */
-#define FD_TO_PTR(fd) INT_TO_PTR((fd)+1)
-#define PTR_TO_FD(p) (PTR_TO_INT(p)-1)
-
-FDSet *fdset_new(void) {
-        return MAKE_FDSET(set_new(trivial_hash_func, trivial_compare_func));
-}
-
-void fdset_free(FDSet *s) {
-        void *p;
-
-        while ((p = set_steal_first(MAKE_SET(s)))) {
-                /* Valgrind's fd might have ended up in this set here,
-                 * due to fdset_new_fill(). We'll ignore all failures
-                 * here, so that the EBADFD that valgrind will return
-                 * us on close() doesn't influence us */
-
-                /* When reloading duplicates of the private bus
-                 * connection fds and suchlike are closed here, which
-                 * has no effect at all, since they are only
-                 * duplicates. So don't be surprised about these log
-                 * messages. */
-
-                log_debug("Closing left-over fd %i", PTR_TO_FD(p));
-                close_nointr(PTR_TO_FD(p));
-        }
-
-        set_free(MAKE_SET(s));
-}
-
-int fdset_put(FDSet *s, int fd) {
-        assert(s);
-        assert(fd >= 0);
-
-        return set_put(MAKE_SET(s), FD_TO_PTR(fd));
-}
-
-int fdset_put_dup(FDSet *s, int fd) {
-        int copy, r;
-
-        assert(s);
-        assert(fd >= 0);
-
-        if ((copy = fcntl(fd, F_DUPFD_CLOEXEC, 3)) < 0)
-                return -errno;
-
-        if ((r = fdset_put(s, copy)) < 0) {
-                close_nointr_nofail(copy);
-                return r;
-        }
-
-        return copy;
-}
-
-bool fdset_contains(FDSet *s, int fd) {
-        assert(s);
-        assert(fd >= 0);
-
-        return !!set_get(MAKE_SET(s), FD_TO_PTR(fd));
-}
-
-int fdset_remove(FDSet *s, int fd) {
-        assert(s);
-        assert(fd >= 0);
-
-        return set_remove(MAKE_SET(s), FD_TO_PTR(fd)) ? fd : -ENOENT;
-}
-
-int fdset_new_fill(FDSet **_s) {
-        DIR *d;
-        struct dirent *de;
-        int r = 0;
-        FDSet *s;
-
-        assert(_s);
-
-        /* Creates an fdsets and fills in all currently open file
-         * descriptors. */
-
-        if (!(d = opendir("/proc/self/fd")))
-                return -errno;
-
-        if (!(s = fdset_new())) {
-                r = -ENOMEM;
-                goto finish;
-        }
-
-        while ((de = readdir(d))) {
-                int fd = -1;
-
-                if (ignore_file(de->d_name))
-                        continue;
-
-                if ((r = safe_atoi(de->d_name, &fd)) < 0)
-                        goto finish;
-
-                if (fd < 3)
-                        continue;
-
-                if (fd == dirfd(d))
-                        continue;
-
-                if ((r = fdset_put(s, fd)) < 0)
-                        goto finish;
-        }
-
-        r = 0;
-        *_s = s;
-        s = NULL;
-
-finish:
-        closedir(d);
-
-        /* We won't close the fds here! */
-        if (s)
-                set_free(MAKE_SET(s));
-
-        return r;
-}
-
-int fdset_cloexec(FDSet *fds, bool b) {
-        Iterator i;
-        void *p;
-        int r;
-
-        assert(fds);
-
-        SET_FOREACH(p, MAKE_SET(fds), i)
-                if ((r = fd_cloexec(PTR_TO_FD(p), b)) < 0)
-                        return r;
-
-        return 0;
-}