diff options
Diffstat (limited to 'src/cgls')
l--------- | src/cgls/Makefile | 1 | ||||
-rw-r--r-- | src/cgls/cgls.c | 287 |
2 files changed, 0 insertions, 288 deletions
diff --git a/src/cgls/Makefile b/src/cgls/Makefile deleted file mode 120000 index d0b0e8e008..0000000000 --- a/src/cgls/Makefile +++ /dev/null @@ -1 +0,0 @@ -../Makefile
\ No newline at end of file diff --git a/src/cgls/cgls.c b/src/cgls/cgls.c deleted file mode 100644 index b839fadd04..0000000000 --- a/src/cgls/cgls.c +++ /dev/null @@ -1,287 +0,0 @@ -/*** - 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 <getopt.h> -#include <stdio.h> -#include <string.h> -#include <unistd.h> - -#include "sd-bus.h" - -#include "alloc-util.h" -#include "bus-error.h" -#include "bus-util.h" -#include "cgroup-show.h" -#include "cgroup-util.h" -#include "fileio.h" -#include "log.h" -#include "output-mode.h" -#include "pager.h" -#include "path-util.h" -#include "unit-name.h" -#include "util.h" - -static bool arg_no_pager = false; -static bool arg_kernel_threads = false; -static bool arg_all = false; -static int arg_full = -1; -static char* arg_machine = NULL; - -static void help(void) { - printf("%s [OPTIONS...] [CGROUP...]\n\n" - "Recursively show control group contents.\n\n" - " -h --help Show this help\n" - " --version Show package version\n" - " --no-pager Do not pipe output into a pager\n" - " -a --all Show all groups, including empty\n" - " -l --full Do not ellipsize output\n" - " -k Include kernel threads in output\n" - " -M --machine= Show container\n" - , program_invocation_short_name); -} - -static int parse_argv(int argc, char *argv[]) { - - enum { - ARG_NO_PAGER = 0x100, - ARG_VERSION, - }; - - static const struct option options[] = { - { "help", no_argument, NULL, 'h' }, - { "version", no_argument, NULL, ARG_VERSION }, - { "no-pager", no_argument, NULL, ARG_NO_PAGER }, - { "all", no_argument, NULL, 'a' }, - { "full", no_argument, NULL, 'l' }, - { "machine", required_argument, NULL, 'M' }, - {} - }; - - int c; - - assert(argc >= 1); - assert(argv); - - while ((c = getopt_long(argc, argv, "hkalM:", options, NULL)) >= 0) - - switch (c) { - - case 'h': - help(); - return 0; - - case ARG_VERSION: - return version(); - - case ARG_NO_PAGER: - arg_no_pager = true; - break; - - case 'a': - arg_all = true; - break; - - case 'l': - arg_full = true; - break; - - case 'k': - arg_kernel_threads = true; - break; - - case 'M': - arg_machine = optarg; - break; - - case '?': - return -EINVAL; - - default: - assert_not_reached("Unhandled option"); - } - - return 1; -} - -static int get_cgroup_root(char **ret) { - _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; - _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL; - _cleanup_free_ char *unit = NULL, *path = NULL; - const char *m; - int r; - - if (!arg_machine) { - r = cg_get_root_path(ret); - if (r == -ENOMEDIUM) - return log_error_errno(r, "Failed to get root control group path: No cgroup filesystem mounted on /sys/fs/cgroup"); - else if (r < 0) - return log_error_errno(r, "Failed to get root control group path: %m"); - - return 0; - } - - m = strjoina("/run/systemd/machines/", arg_machine); - r = parse_env_file(m, NEWLINE, "SCOPE", &unit, NULL); - if (r < 0) - return log_error_errno(r, "Failed to load machine data: %m"); - - path = unit_dbus_path_from_name(unit); - if (!path) - return log_oom(); - - r = bus_connect_transport_systemd(BUS_TRANSPORT_LOCAL, NULL, false, &bus); - if (r < 0) - return log_error_errno(r, "Failed to create bus connection: %m"); - - r = sd_bus_get_property_string( - bus, - "org.freedesktop.systemd1", - path, - unit_dbus_interface_from_name(unit), - "ControlGroup", - &error, - ret); - if (r < 0) - return log_error_errno(r, "Failed to query unit control group path: %s", bus_error_message(&error, r)); - - return 0; -} - -static void show_cg_info(const char *controller, const char *path) { - - if (cg_unified() <= 0 && controller && !streq(controller, SYSTEMD_CGROUP_CONTROLLER)) - printf("Controller %s; ", controller); - - printf("Control group %s:\n", isempty(path) ? "/" : path); - fflush(stdout); -} - -int main(int argc, char *argv[]) { - int r, output_flags; - - log_parse_environment(); - log_open(); - - r = parse_argv(argc, argv); - if (r <= 0) - goto finish; - - if (!arg_no_pager) { - r = pager_open(false); - if (r > 0 && arg_full < 0) - arg_full = true; - } - - output_flags = - arg_all * OUTPUT_SHOW_ALL | - (arg_full > 0) * OUTPUT_FULL_WIDTH; - - if (optind < argc) { - _cleanup_free_ char *root = NULL; - int i; - - r = get_cgroup_root(&root); - if (r < 0) - goto finish; - - for (i = optind; i < argc; i++) { - int q; - - if (path_startswith(argv[i], "/sys/fs/cgroup")) { - - printf("Directory %s:\n", argv[i]); - fflush(stdout); - - q = show_cgroup_by_path(argv[i], NULL, 0, arg_kernel_threads, output_flags); - } else { - _cleanup_free_ char *c = NULL, *p = NULL, *j = NULL; - const char *controller, *path; - - r = cg_split_spec(argv[i], &c, &p); - if (r < 0) { - log_error_errno(r, "Failed to split argument %s: %m", argv[i]); - goto finish; - } - - controller = c ?: SYSTEMD_CGROUP_CONTROLLER; - if (p) { - j = strjoin(root, "/", p, NULL); - if (!j) { - r = log_oom(); - goto finish; - } - - path_kill_slashes(j); - path = j; - } else - path = root; - - show_cg_info(controller, path); - - q = show_cgroup(controller, path, NULL, 0, arg_kernel_threads, output_flags); - } - - if (q < 0) - r = q; - } - - } else { - bool done = false; - - if (!arg_machine) { - _cleanup_free_ char *cwd = NULL; - - cwd = get_current_dir_name(); - if (!cwd) { - r = log_error_errno(errno, "Cannot determine current working directory: %m"); - goto finish; - } - - if (path_startswith(cwd, "/sys/fs/cgroup")) { - printf("Working directory %s:\n", cwd); - fflush(stdout); - - r = show_cgroup_by_path(cwd, NULL, 0, arg_kernel_threads, output_flags); - done = true; - } - } - - if (!done) { - _cleanup_free_ char *root = NULL; - - r = get_cgroup_root(&root); - if (r < 0) - goto finish; - - show_cg_info(SYSTEMD_CGROUP_CONTROLLER, root); - - printf("-.slice\n"); - r = show_cgroup(SYSTEMD_CGROUP_CONTROLLER, root, NULL, 0, arg_kernel_threads, output_flags); - } - } - - if (r < 0) - log_error_errno(r, "Failed to list cgroup tree: %m"); - -finish: - pager_close(); - - return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; -} |