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, 351 deletions

diff --git a/src/shared/cgroup-show.c b/src/shared/cgroup-show.c
deleted file mode 100644
index 437d09711b..0000000000
--- a/src/shared/cgroup-show.c
+++ /dev/null
@@ -1,351 +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 <stdio.h>
-#include <string.h>
-#include <dirent.h>
-#include <errno.h>
-
-#include "util.h"
-#include "macro.h"
-#include "path-util.h"
-#include "cgroup-util.h"
-#include "cgroup-show.h"
-
-static int compare(const void *a, const void *b) {
-        const pid_t *p = a, *q = b;
-
-        if (*p < *q)
-                return -1;
-        if (*p > *q)
-                return 1;
-        return 0;
-}
-
-static unsigned ilog10(unsigned long ul) {
-        int n = 0;
-
-        while (ul > 0) {
-                n++;
-                ul /= 10;
-        }
-
-        return n;
-}
-
-static void show_pid_array(int pids[], unsigned n_pids, const char *prefix, unsigned n_columns, bool extra, bool more, bool kernel_threads) {
-        unsigned i, m, pid_width;
-        pid_t biggest = 0;
-
-        /* Filter duplicates */
-        m = 0;
-        for (i = 0; i < n_pids; i++) {
-                unsigned j;
-
-                if (pids[i] > biggest)
-                        biggest = pids[i];
-
-                for (j = i+1; j < n_pids; j++)
-                        if (pids[i] == pids[j])
-                                break;
-
-                if (j >= n_pids)
-                        pids[m++] = pids[i];
-        }
-        n_pids = m;
-        pid_width = ilog10(biggest);
-
-        /* And sort */
-        qsort(pids, n_pids, sizeof(pid_t), compare);
-
-        if (n_columns > pid_width+2)
-                n_columns -= pid_width+2;
-        else
-                n_columns = 20;
-
-        for (i = 0; i < n_pids; i++) {
-                char *t = NULL;
-
-                get_process_cmdline(pids[i], n_columns, true, &t);
-
-                printf("%s%s%*lu %s\n",
-                       prefix,
-                       draw_special_char(extra ? DRAW_TRIANGULAR_BULLET :
-                                         ((more || i < n_pids-1) ? DRAW_TREE_BRANCH : DRAW_TREE_RIGHT)),
-                       pid_width,
-                       (unsigned long) pids[i],
-                       strna(t));
-
-                free(t);
-        }
-}
-
-
-static int show_cgroup_one_by_path(const char *path, const char *prefix, unsigned n_columns, bool more, bool kernel_threads) {
-        char *fn;
-        FILE *f;
-        size_t n = 0, n_allocated = 0;
-        pid_t *pids = NULL;
-        char *p;
-        pid_t pid;
-        int r;
-
-        r = cg_fix_path(path, &p);
-        if (r < 0)
-                return r;
-
-        r = asprintf(&fn, "%s/cgroup.procs", p);
-        free(p);
-        if (r < 0)
-                return -ENOMEM;
-
-        f = fopen(fn, "re");
-        free(fn);
-        if (!f)
-                return -errno;
-
-        while ((r = cg_read_pid(f, &pid)) > 0) {
-
-                if (!kernel_threads && is_kernel_thread(pid) > 0)
-                        continue;
-
-                if (n >= n_allocated) {
-                        pid_t *npids;
-
-                        n_allocated = MAX(16U, n*2U);
-
-                        npids = realloc(pids, sizeof(pid_t) * n_allocated);
-                        if (!npids) {
-                                r = -ENOMEM;
-                                goto finish;
-                        }
-
-                        pids = npids;
-                }
-
-                assert(n < n_allocated);
-                pids[n++] = pid;
-        }
-
-        if (r < 0)
-                goto finish;
-
-        if (n > 0)
-                show_pid_array(pids, n, prefix, n_columns, false, more, kernel_threads);
-
-        r = 0;
-
-finish:
-        free(pids);
-
-        if (f)
-                fclose(f);
-
-        return r;
-}
-
-int show_cgroup_by_path(const char *path, const char *prefix, unsigned n_columns, bool kernel_threads, bool all) {
-        DIR *d;
-        char *last = NULL;
-        char *p1 = NULL, *p2 = NULL, *fn = NULL, *gn = NULL;
-        bool shown_pids = false;
-        int r;
-
-        assert(path);
-
-        if (n_columns <= 0)
-                n_columns = columns();
-
-        if (!prefix)
-                prefix = "";
-
-        r = cg_fix_path(path, &fn);
-        if (r < 0)
-                return r;
-
-        d = opendir(fn);
-        if (!d) {
-                free(fn);
-                return -errno;
-        }
-
-        while ((r = cg_read_subgroup(d, &gn)) > 0) {
-                char *k;
-
-                r = asprintf(&k, "%s/%s", fn, gn);
-                free(gn);
-                if (r < 0) {
-                        r = -ENOMEM;
-                        goto finish;
-                }
-
-                if (!all && cg_is_empty_recursive(NULL, k, false) > 0) {
-                        free(k);
-                        continue;
-                }
-
-                if (!shown_pids) {
-                        show_cgroup_one_by_path(path, prefix, n_columns, true, kernel_threads);
-                        shown_pids = true;
-                }
-
-                if (last) {
-                        printf("%s%s%s\n", prefix, draw_special_char(DRAW_TREE_BRANCH),
-                                           path_get_file_name(last));
-
-                        if (!p1) {
-                                p1 = strappend(prefix, draw_special_char(DRAW_TREE_VERT));
-                                if (!p1) {
-                                        free(k);
-                                        r = -ENOMEM;
-                                        goto finish;
-                                }
-                        }
-
-                        show_cgroup_by_path(last, p1, n_columns-2, kernel_threads, all);
-                        free(last);
-                }
-
-                last = k;
-        }
-
-        if (r < 0)
-                goto finish;
-
-        if (!shown_pids)
-                show_cgroup_one_by_path(path, prefix, n_columns, !!last, kernel_threads);
-
-        if (last) {
-                printf("%s%s%s\n", prefix, draw_special_char(DRAW_TREE_RIGHT),
-                                   path_get_file_name(last));
-
-                if (!p2) {
-                        p2 = strappend(prefix, "  ");
-                        if (!p2) {
-                                r = -ENOMEM;
-                                goto finish;
-                        }
-                }
-
-                show_cgroup_by_path(last, p2, n_columns-2, kernel_threads, all);
-        }
-
-        r = 0;
-
-finish:
-        free(p1);
-        free(p2);
-        free(last);
-        free(fn);
-
-        closedir(d);
-
-        return r;
-}
-
-int show_cgroup(const char *controller, const char *path, const char *prefix, unsigned n_columns, bool kernel_threads, bool all) {
-        char *p;
-        int r;
-
-        assert(controller);
-        assert(path);
-
-        r = cg_get_path(controller, path, NULL, &p);
-        if (r < 0)
-                return r;
-
-        r = show_cgroup_by_path(p, prefix, n_columns, kernel_threads, all);
-        free(p);
-
-        return r;
-}
-
-static int show_extra_pids(const char *controller, const char *path, const char *prefix, unsigned n_columns, const pid_t pids[], unsigned n_pids) {
-        pid_t *copy;
-        unsigned i, j;
-        int r;
-
-        assert(controller);
-        assert(path);
-
-        if (n_pids <= 0)
-                return 0;
-
-        if (n_columns <= 0)
-                n_columns = columns();
-
-        if (!prefix)
-                prefix = "";
-
-        copy = new(pid_t, n_pids);
-        if (!copy)
-                return -ENOMEM;
-
-        for (i = 0, j = 0; i < n_pids; i++) {
-                char *k;
-
-                r = cg_get_by_pid(controller, pids[i], &k);
-                if (r < 0) {
-                        free(copy);
-                        return r;
-                }
-
-                if (path_startswith(k, path))
-                        continue;
-
-                copy[j++] = pids[i];
-        }
-
-        show_pid_array(copy, j, prefix, n_columns, true, false, false);
-
-        free(copy);
-        return 0;
-}
-
-int show_cgroup_and_extra(const char *controller, const char *path, const char *prefix, unsigned n_columns, bool kernel_threads, bool all, const pid_t extra_pids[], unsigned n_extra_pids) {
-        int r;
-
-        assert(controller);
-        assert(path);
-
-        r = show_cgroup(controller, path, prefix, n_columns, kernel_threads, all);
-        if (r < 0)
-                return r;
-
-        return show_extra_pids(controller, path, prefix, n_columns, extra_pids, n_extra_pids);
-}
-
-int show_cgroup_and_extra_by_spec(const char *spec, const char *prefix, unsigned n_columns, bool kernel_threads, bool all, const pid_t extra_pids[], unsigned n_extra_pids) {
-        int r;
-        char *controller, *path;
-
-        assert(spec);
-
-        r = cg_split_spec(spec, &controller, &path);
-        if (r < 0)
-                return r;
-
-        r = show_cgroup_and_extra(controller, path, prefix, n_columns, kernel_threads, all, extra_pids, n_extra_pids);
-        free(controller);
-        free(path);
-
-        return r;
-}