diff options
Diffstat (limited to 'src/cgls')
| -rw-r--r-- | src/cgls/cgls.c | 46 |
1 files changed, 32 insertions, 14 deletions
diff --git a/src/cgls/cgls.c b/src/cgls/cgls.c index 8ddd733dfd..ef3e5672ab 100644 --- a/src/cgls/cgls.c +++ b/src/cgls/cgls.c @@ -39,6 +39,7 @@ 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) { @@ -49,7 +50,8 @@ static void help(void) { " --no-pager Do not pipe output into a pager\n" " -a --all Show all groups, including empty\n" " --full Do not ellipsize output\n" - " -k Include kernel threads in output\n", + " -k Include kernel threads in output\n" + " -M --machine Show container\n", program_invocation_short_name); } @@ -67,6 +69,7 @@ static int parse_argv(int argc, char *argv[]) { { "no-pager", no_argument, NULL, ARG_NO_PAGER }, { "all", no_argument, NULL, 'a' }, { "full", no_argument, NULL, ARG_FULL }, + { "machine", required_argument, NULL, 'M' }, { NULL, 0, NULL, 0 } }; @@ -75,7 +78,7 @@ static int parse_argv(int argc, char *argv[]) { assert(argc >= 1); assert(argv); - while ((c = getopt_long(argc, argv, "hka", options, NULL)) >= 0) { + while ((c = getopt_long(argc, argv, "hkaM:", options, NULL)) >= 0) { switch (c) { @@ -104,6 +107,10 @@ static int parse_argv(int argc, char *argv[]) { arg_kernel_threads = true; break; + case 'M': + arg_machine = optarg; + break; + case '?': return -EINVAL; @@ -119,6 +126,7 @@ static int parse_argv(int argc, char *argv[]) { 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(); @@ -144,13 +152,20 @@ int main(int argc, char *argv[]) { (arg_full > 0) * OUTPUT_FULL_WIDTH; if (optind < argc) { - unsigned i; + int i; - for (i = (unsigned) optind; i < (unsigned) argc; i++) { + for (i = optind; i < argc; i++) { int q; printf("%s:\n", argv[i]); - q = show_cgroup_by_path(argv[i], NULL, 0, + 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; @@ -165,16 +180,18 @@ int main(int argc, char *argv[]) { goto finish; } - if (path_startswith(p, "/sys/fs/cgroup")) { + 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 { - _cleanup_free_ char *root = NULL; - - r = cg_get_root_path(&root); + if (arg_machine) + r = cg_get_machine_path(arg_machine, &root); + else + r = cg_get_root_path(&root); if (r < 0) { - log_error("Failed to get root path: %s", strerror(-r)); + log_error("Failed to get %s path: %s", + arg_machine ? "machine" : "root", strerror(-r)); goto finish; } @@ -183,10 +200,11 @@ int main(int argc, char *argv[]) { } } - if (r < 0) - log_error("Failed to list cgroup tree: %s", strerror(-r)); - - retval = EXIT_SUCCESS; + 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(); |