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top: add module description & usage

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This commit is contained in:
Beat Küng 2017-04-27 17:20:10 +02:00
parent 6ea9762117
commit c1788c4e43
1 changed files with 20 additions and 4 deletions
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24
src/systemcmds/top/top.c
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@ -50,12 +50,22 @@
#include <systemlib/cpuload.h>
#include <systemlib/printload.h>
#include <drivers/drv_hrt.h>
#include <px4_module.h>
/**
* Start the top application.
*/
__EXPORT int top_main(int argc, char *argv[]);
static void print_usage(void)
{
PRINT_MODULE_DESCRIPTION("Monitor running processes and their CPU, stack usage, priority and state");
PRINT_MODULE_USAGE_NAME_SIMPLE("top", "system");
PRINT_MODULE_USAGE_COMMAND_DESCR("once", "print load only once");
}
int
top_main(int argc, char *argv[])
{
@ -67,10 +77,16 @@ top_main(int argc, char *argv[])
/* clear screen */
dprintf(1, "\033[2J\n");
if (argc > 1 && !strcmp(argv[1], "once")) {
print_load(curr_time, 1, &load);
sleep(1);
print_load(hrt_absolute_time(), 1, &load);
if (argc > 1) {
if (!strcmp(argv[1], "once")) {
print_load(curr_time, 1, &load);
sleep(1);
print_load(hrt_absolute_time(), 1, &load);
} else {
print_usage();
}
return 0;
}