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Add an 'n' option to cgtop (equivalent to top)

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David Strauss 2012-07-25 16:33:06 -07:00 committed by Zbigniew Jędrzejewski-Szmek
parent c51742d029
commit a152771af1
1 changed files with 20 additions and 5 deletions
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25
src/cgtop/cgtop.c
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@ -55,6 +55,7 @@ typedef struct Group {
} Group;
static unsigned arg_depth = 3;
static unsigned arg_iterations = 0;
static usec_t arg_delay = 1*USEC_PER_SEC;
static enum {
@ -505,6 +506,7 @@ static void help(void) {
" -m Order by memory load\n"
" -i Order by IO load\n"
" -d --delay=DELAY Specify delay\n"
" -n --iterations=N Run for N iterations before exiting\n"
" --depth=DEPTH Maximum traversal depth (default: 2)\n",
program_invocation_short_name);
}
@ -516,10 +518,11 @@ static int parse_argv(int argc, char *argv[]) {
};
static const struct option options[] = {
{ "help", no_argument, NULL, 'h' },
{ "delay", required_argument, NULL, 'd' },
{ "depth", required_argument, NULL, ARG_DEPTH },
{ NULL, 0, NULL, 0 }
{ "help", no_argument, NULL, 'h' },
{ "delay", required_argument, NULL, 'd' },
{ "iterations", required_argument, NULL, 'n' },
{ "depth", required_argument, NULL, ARG_DEPTH },
{ NULL, 0, NULL, 0 }
};
int c;
@ -528,7 +531,7 @@ static int parse_argv(int argc, char *argv[]) {
assert(argc >= 1);
assert(argv);
while ((c = getopt_long(argc, argv, "hptcmid:", options, NULL)) >= 0) {
while ((c = getopt_long(argc, argv, "hptcmin:d:", options, NULL)) >= 0) {
switch (c) {
@ -554,6 +557,15 @@ static int parse_argv(int argc, char *argv[]) {
break;
case 'n':
r = safe_atou(optarg, &arg_iterations);
if (r < 0) {
log_error("Failed to parse iterations parameter.");
return -EINVAL;
}
break;
case 'p':
arg_order = ORDER_PATH;
break;
@ -640,6 +652,9 @@ int main(int argc, char *argv[]) {
if (r < 0)
goto finish;
if (arg_iterations && iteration >= arg_iterations)
break;
r = read_one_char(stdin, &key, last_refresh + arg_delay - t, NULL);
if (r == -ETIMEDOUT)
continue;