*
* Based on nanotop.c from floppyfw project
*
- * Contact me: vda.linux@googlemail.com */
+ * Contact me: vda.linux@googlemail.com
*/
+//config:config NMETER
+//config: bool "nmeter"
+//config: default y
+//config: help
+//config: Prints selected system stats continuously, one line per update.
+
+//applet:IF_NMETER(APPLET(nmeter, BB_DIR_USR_BIN, BB_SUID_DROP))
+
+//kbuild:lib-$(CONFIG_NMETER) += nmeter.o
+
+//usage:#define nmeter_trivial_usage
+//usage: "[-d MSEC] FORMAT_STRING"
+//usage:#define nmeter_full_usage "\n\n"
+//usage: "Monitor system in real time"
+//usage: "\n"
+//usage: "\n -d MSEC Milliseconds between updates (default:1000)"
+//usage: "\n"
+//usage: "\nFormat specifiers:"
+//usage: "\n %Nc or %[cN] CPU. N - bar size (default:10)"
+//usage: "\n (displays: S:system U:user N:niced D:iowait I:irq i:softirq)"
+//usage: "\n %[nINTERFACE] Network INTERFACE"
+//usage: "\n %m Allocated memory"
+//usage: "\n %[mf] Free memory"
+//usage: "\n %[mt] Total memory"
+//usage: "\n %s Allocated swap"
+//usage: "\n %f Number of used file descriptors"
+//usage: "\n %Ni Total/specific IRQ rate"
+//usage: "\n %x Context switch rate"
+//usage: "\n %p Forks"
+//usage: "\n %[pn] # of processes"
+//usage: "\n %b Block io"
+//usage: "\n %Nt Time (with N decimal points)"
+//usage: "\n %r Print <cr> instead of <lf> at EOL"
+
//TODO:
// simplify code
// /proc/locks
typedef s_stat* init_func(const char *param);
+// Deprecated %NNNd is to be removed, -d MSEC supersedes it
static const char options[] ALIGN1 = "ncmsfixptbdr";
static init_func *const init_functions[] = {
init_if,
s_stat *first = NULL;
s_stat *last = NULL;
s_stat *s;
+ char *opt_d;
char *cur, *prev;
INIT_G();
xchdir("/proc");
- if (!argv[1])
- bb_show_usage();
-
if (open_read_close("version", buf, sizeof(buf)-1) > 0) {
buf[sizeof(buf)-1] = '\0';
is26 = (strstr(buf, " 2.4.") == NULL);
}
- // Can use argv[1] directly, but this will mess up
+ if (getopt32(argv, "d:", &opt_d))
+ init_delay(opt_d);
+ argv += optind;
+
+ if (!argv[0])
+ bb_show_usage();
+
+ // Can use argv[0] directly, but this will mess up
// parameters as seen by e.g. ps. Making a copy...
- cur = xstrdup(argv[1]);
+ cur = xstrdup(argv[0]);
while (1) {
char *param, *p;
prev = cur;