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cgtop: add --version option

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This commit is contained in:
Zbigniew Jędrzejewski-Szmek 2012-07-26 23:09:02 +02:00
parent 11f96fac8f
commit 0d7e32fa0a
1 changed files with 19 additions and 7 deletions
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26
src/cgtop/cgtop.c
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@ -30,6 +30,7 @@
#include "util.h"
#include "hashmap.h"
#include "cgroup-util.h"
#include "build.h"
typedef struct Group {
char *path;
@ -511,6 +512,7 @@ static void help(void) {
printf("%s [OPTIONS...]\n\n"
"Show top control groups by their resource usage.\n\n"
" -h --help Show this help\n"
" --version Print version and exit\n"
" -p Order by path\n"
" -t Order by number of tasks\n"
" -c Order by CPU load\n"
@ -523,19 +525,25 @@ static void help(void) {
program_invocation_short_name);
}
static void version(void) {
puts(PACKAGE_STRING " cgtop");
}
static int parse_argv(int argc, char *argv[]) {
enum {
ARG_DEPTH = 0x100
ARG_VERSION = 0x100,
ARG_DEPTH,
};
static const struct option options[] = {
{ "help", no_argument, NULL, 'h' },
{ "delay", required_argument, NULL, 'd' },
{ "iterations", required_argument, NULL, 'n' },
{ "batch", no_argument, NULL, 'b' },
{ "depth", required_argument, NULL, ARG_DEPTH },
{ NULL, 0, NULL, 0 }
{ "help", no_argument, NULL, 'h' },
{ "version", no_argument, NULL, ARG_VERSION },
{ "delay", required_argument, NULL, 'd' },
{ "iterations", required_argument, NULL, 'n' },
{ "batch", no_argument, NULL, 'b' },
{ "depth", required_argument, NULL, ARG_DEPTH },
{ NULL, 0, NULL, 0 }
};
int c;
@ -552,6 +560,10 @@ static int parse_argv(int argc, char *argv[]) {
help();
return 0;
case ARG_VERSION:
version();
return 0;
case ARG_DEPTH:
r = safe_atou(optarg, &arg_depth);
if (r < 0) {