diff options
Diffstat (limited to 'cpukit/libmisc/shell/main_top.c')
-rw-r--r-- | cpukit/libmisc/shell/main_top.c | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/cpukit/libmisc/shell/main_top.c b/cpukit/libmisc/shell/main_top.c new file mode 100644 index 0000000000..ad6223a560 --- /dev/null +++ b/cpukit/libmisc/shell/main_top.c @@ -0,0 +1,60 @@ +/* + * 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/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_cpu_usage_top_with_plugin(stdout, (rtems_printk_plugin_t)fprintf); + 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 */ +}; |