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/*
* TOP Command Implementation
*
* COPYRIGHT (c) 2014.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include <string.h>
#include <rtems.h>
#include <rtems/cpuuse.h>
#include <rtems/printer.h>
#include <rtems/shell.h>
#include "internal.h"
static int rtems_shell_main_top(
int argc,
char *argv[]
)
{
/*
* When invoked with no arguments, print the report.
*/
if ( argc == 1 ) {
rtems_printer printer;
rtems_print_printer_fprintf(&printer, stdout);
rtems_cpu_usage_top_with_plugin(&printer);
return 0;
}
/*
* When invoked with the single argument -r, reset the statistics.
*/
if ( argc == 2 && !strcmp( argv[1], "-r" ) ) {
printf( "Resetting CPU Usage information\n" );
rtems_cpu_usage_reset();
return 0;
}
/*
* OK. The user did something wrong.
*/
fprintf( stderr, "%s: [-r]\n", argv[0] );
return -1;
}
rtems_shell_cmd_t rtems_shell_TOP_Command = {
"top", /* name */
"[-r] print or reset per thread cpu usage", /* usage */
"rtems", /* topic */
rtems_shell_main_top, /* command */
NULL, /* alias */
NULL /* next */
};
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