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 {
int main(int argc, char *argv[]) {
int r = 0, retval = EXIT_FAILURE;
int output_flags;
log_parse_environment();
log_open();
r = parse_argv(argc, argv);
if (r < 0)
goto finish;
else if (r == 0) {
retval = EXIT_SUCCESS;
goto finish;
}
if (!arg_no_pager) {
r = pager_open(false);
if (r > 0) {
if (arg_full == -1)
arg_full = true;
}
}
output_flags =
arg_all * OUTPUT_SHOW_ALL |
(arg_full > 0) * OUTPUT_FULL_WIDTH;
if (optind < argc) {
unsigned i;
for (i = (unsigned) optind; i < (unsigned) argc; i++) {
int q;
printf("%s:\n", argv[i]);
q = show_cgroup_by_path(argv[i], NULL, 0,
arg_kernel_threads, output_flags);
if (q < 0)
r = q;
}
} else {
char _cleanup_free_ *p;
p = get_current_dir_name();
if (!p) {
log_error("Cannot determine current working directory: %m");
goto finish;
}
if (path_startswith(p, "/sys/fs/cgroup")) {
printf("Working Directory %s:\n", p);
r = show_cgroup_by_path(p, NULL, 0,
arg_kernel_threads, output_flags);
} else {
char _cleanup_free_ *root = NULL;
const char *t = NULL;
r = cg_get_by_pid(SYSTEMD_CGROUP_CONTROLLER, 1, &root);
if (r < 0)
t = "/";
else {
if (endswith(root, "/system"))
root[strlen(root)-7] = 0;
t = root[0] ? root : "/";
}
r = show_cgroup(SYSTEMD_CGROUP_CONTROLLER, t, NULL, 0,
arg_kernel_threads, output_flags);
}
}
if (r < 0)
log_error("Failed to list cgroup tree: %s", strerror(-r));
retval = EXIT_SUCCESS;
finish:
pager_close();
return retval;
}
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;
r = pager_open(arg_no_pager, false);
if (r > 0 && arg_full < 0)
arg_full = true;
output_flags =
arg_all * OUTPUT_SHOW_ALL |
(arg_full > 0) * OUTPUT_FULL_WIDTH |
arg_kernel_threads * OUTPUT_KERNEL_THREADS;
if (arg_names) {
_cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
_cleanup_free_ char *root = NULL;
char **name;
STRV_FOREACH(name, arg_names) {
int q;
if (arg_show_unit != SHOW_UNIT_NONE) {
/* Command line arguments are unit names */
_cleanup_free_ char *cgroup = NULL;
if (!bus) {
/* Connect to the bus only if necessary */
r = bus_connect_transport_systemd(BUS_TRANSPORT_LOCAL, NULL,
arg_show_unit == SHOW_UNIT_USER,
&bus);
if (r < 0) {
log_error_errno(r, "Failed to create bus connection: %m");
goto finish;
}
}
q = show_cgroup_get_unit_path_and_warn(bus, *name, &cgroup);
if (q < 0)
goto failed;
if (isempty(cgroup)) {
log_warning("Unit %s not found.", *name);
q = -ENOENT;
goto failed;
}
printf("Unit %s (%s):\n", *name, cgroup);
fflush(stdout);
q = show_cgroup_by_path(cgroup, NULL, 0, output_flags);
} else if (path_startswith(*name, "/sys/fs/cgroup")) {
printf("Directory %s:\n", *name);
fflush(stdout);
q = show_cgroup_by_path(*name, NULL, 0, output_flags);
} else {
_cleanup_free_ char *c = NULL, *p = NULL, *j = NULL;
const char *controller, *path;
if (!root) {
/* Query root only if needed, treat error as fatal */
r = show_cgroup_get_path_and_warn(arg_machine, NULL, &root);
if (r < 0)
goto finish;
}
q = cg_split_spec(*name, &c, &p);
if (q < 0) {
log_error_errno(q, "Failed to split argument %s: %m", *name);
goto failed;
}
controller = c ?: SYSTEMD_CGROUP_CONTROLLER;
if (p) {
j = strjoin(root, "/", p);
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, output_flags);
}
failed:
if (q < 0 && r >= 0)
r = q;
}
} else {
int main(int argc, char *argv[]) {
int r = 0, retval = EXIT_FAILURE;
int output_flags;
_cleanup_free_ char *root = NULL;
_cleanup_bus_close_unref_ sd_bus *bus = NULL;
log_parse_environment();
log_open();
r = parse_argv(argc, argv);
if (r < 0)
goto finish;
else if (r == 0) {
retval = EXIT_SUCCESS;
goto finish;
}
if (!arg_no_pager) {
r = pager_open(false);
if (r > 0) {
if (arg_full == -1)
arg_full = true;
}
}
output_flags =
arg_all * OUTPUT_SHOW_ALL |
(arg_full > 0) * OUTPUT_FULL_WIDTH;
r = bus_open_transport(BUS_TRANSPORT_LOCAL, NULL, false, &bus);
if (r < 0) {
log_error_errno(r, "Failed to create bus connection: %m");
goto finish;
}
if (optind < argc) {
int i;
for (i = optind; i < argc; i++) {
int q;
fprintf(stdout, "%s:\n", argv[i]);
fflush(stdout);
if (arg_machine)
root = strjoin("machine/", arg_machine, "/", argv[i], NULL);
else
root = strdup(argv[i]);
if (!root)
return log_oom();
q = show_cgroup_by_path(root, NULL, 0,
arg_kernel_threads, output_flags);
if (q < 0)
r = q;
}
} else {
_cleanup_free_ char *p;
p = get_current_dir_name();
if (!p) {
log_error_errno(errno, "Cannot determine current working directory: %m");
goto finish;
}
if (path_startswith(p, "/sys/fs/cgroup") && !arg_machine) {
printf("Working Directory %s:\n", p);
r = show_cgroup_by_path(p, NULL, 0,
arg_kernel_threads, output_flags);
} else {
if (arg_machine) {
char *m;
const char *cgroup;
_cleanup_free_ char *scope = NULL;
_cleanup_free_ char *path = NULL;
_cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
m = strjoina("/run/systemd/machines/", arg_machine);
r = parse_env_file(m, NEWLINE, "SCOPE", &scope, NULL);
if (r < 0) {
log_error_errno(r, "Failed to get machine path: %m");
goto finish;
}
path = unit_dbus_path_from_name(scope);
if (!path) {
log_oom();
goto finish;
}
r = sd_bus_get_property(
bus,
"org.freedesktop.systemd1",
path,
"org.freedesktop.systemd1.Scope",
"ControlGroup",
&error,
&reply,
"s");
if (r < 0) {
log_error("Failed to query ControlGroup: %s", bus_error_message(&error, -r));
goto finish;
}
r = sd_bus_message_read(reply, "s", &cgroup);
if (r < 0) {
bus_log_parse_error(r);
goto finish;
}
root = strdup(cgroup);
if (!root) {
log_oom();
goto finish;
}
} else
r = cg_get_root_path(&root);
if (r < 0) {
log_error_errno(r, "Failed to get %s path: %m",
arg_machine ? "machine" : "root");
goto finish;
}
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 %s: %m", root);
retval = EXIT_FAILURE;
} else
retval = EXIT_SUCCESS;
finish:
pager_close();
return retval;
}
int main(int argc, char *argv[]) {
int r = 0, retval = EXIT_FAILURE;
int output_flags;
char _cleanup_free_ *root = NULL;
log_parse_environment();
log_open();
r = parse_argv(argc, argv);
if (r < 0)
goto finish;
else if (r == 0) {
retval = EXIT_SUCCESS;
goto finish;
}
if (!arg_no_pager) {
r = pager_open(false);
if (r > 0) {
if (arg_full == -1)
arg_full = true;
}
}
output_flags =
arg_all * OUTPUT_SHOW_ALL |
(arg_full > 0) * OUTPUT_FULL_WIDTH;
if (optind < argc) {
int i;
for (i = optind; i < argc; i++) {
int q;
fprintf(stdout, "%s:\n", argv[i]);
fflush(stdout);
if (arg_machine)
root = strjoin("machine/", arg_machine, "/", argv[i], NULL);
else
root = strdup(argv[i]);
if (!root)
return log_oom();
q = show_cgroup_by_path(root, NULL, 0,
arg_kernel_threads, output_flags);
if (q < 0)
r = q;
}
} else {
_cleanup_free_ char *p;
p = get_current_dir_name();
if (!p) {
log_error("Cannot determine current working directory: %m");
goto finish;
}
if (path_startswith(p, "/sys/fs/cgroup") && !arg_machine) {
printf("Working Directory %s:\n", p);
r = show_cgroup_by_path(p, NULL, 0,
arg_kernel_threads, output_flags);
} else {
if (arg_machine) {
char *m;
m = strappenda("/run/systemd/machines/", arg_machine);
r = parse_env_file(m, NEWLINE, "CGROUP", &root, NULL);
} else
r = cg_get_root_path(&root);
if (r < 0) {
log_error("Failed to get %s path: %s",
arg_machine ? "machine" : "root", strerror(-r));
goto finish;
}
r = show_cgroup(SYSTEMD_CGROUP_CONTROLLER, root, NULL, 0,
arg_kernel_threads, output_flags);
}
}
if (r < 0) {
log_error("Failed to list cgroup tree %s: %s", root, strerror(-r));
retval = EXIT_FAILURE;
} else
retval = EXIT_SUCCESS;
finish:
pager_close();
return retval;
}