root / prex-0.9.0 / usr / test / kmon / cmd.c @ 03e9c04a
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/*
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* Copyright (c) 2005-2006, Kohsuke Ohtani
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the author nor the names of any co-contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* cmd.c - command processor
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*/
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#include <sys/prex.h> |
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#include <sys/ioctl.h> |
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#include <sys/types.h> |
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#include <unistd.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <errno.h> |
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#include <stdio.h> |
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static void cmd_help(int argc, char **argv); |
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static void cmd_ver(int argc, char **argv); |
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static void cmd_mem(int argc, char **argv); |
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static void cmd_clear(int argc, char **argv); |
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static void cmd_kill(int argc, char **argv); |
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static void cmd_reboot(int argc, char **argv); |
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static void cmd_shutdown(int argc, char **argv); |
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struct cmd_entry {
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const char *cmd; |
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void (*func)(int, char **); |
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const char *usage; |
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}; |
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static const struct cmd_entry cmd_table[] = { |
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{ "ver" ,cmd_ver ,"Version information" }, |
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{ "mem" ,cmd_mem ,"Show memory usage" }, |
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{ "clear" ,cmd_clear ,"Clear screen" }, |
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{ "kill" ,cmd_kill ,"Terminate thread" }, |
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{ "reboot" ,cmd_reboot ,"Reboot system" }, |
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{ "shutdown" ,cmd_shutdown ,"Shutdown system" }, |
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{ "help" ,cmd_help ,"This help" }, |
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{ NULL ,NULL ,NULL }, |
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}; |
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static void |
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cmd_help(int argc, char **argv) |
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{ |
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int i = 0; |
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while (cmd_table[i].cmd != NULL) { |
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printf("%s - %s\n", cmd_table[i].cmd, cmd_table[i].usage);
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i++; |
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} |
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} |
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static void |
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cmd_ver(int argc, char **argv) |
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{ |
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struct kerninfo info;
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sys_info(INFO_KERNEL, &info); |
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printf("Kernel version:\n");
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printf("%s version %s for %s\n",
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info.sysname, info.version, info.machine); |
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} |
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static void |
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cmd_mem(int argc, char **argv) |
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{ |
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struct meminfo info;
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sys_info(INFO_MEMORY, &info); |
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printf("Memory usage:\n");
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printf(" Used : %8d KB\n",
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(u_int)((info.total - info.free) / 1024));
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printf(" Free : %8d KB\n", (u_int)(info.free / 1024)); |
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printf(" Total : %8d KB\n", (u_int)(info.total / 1024)); |
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printf(" Bootdisk : %8d KB\n", (u_int)(info.bootdisk / 1024)); |
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} |
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static void |
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cmd_clear(int argc, char **argv) |
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{ |
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printf("\33[2J");
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} |
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static void |
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cmd_kill(int argc, char **argv) |
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{ |
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thread_t t; |
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char *ep;
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if (argc < 2) { |
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puts("Usage: kill thread");
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return;
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} |
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t = (thread_t)strtoul(argv[1], &ep, 16); |
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printf("Kill thread id:%x\n", (u_int)t);
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if (thread_terminate(t))
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printf("Thread %x does not exist\n", (u_int)t);
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} |
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static void |
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cmd_reboot(int argc, char **argv) |
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{ |
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device_t pm_dev; |
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int error, state = PWR_REBOOT;
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if ((error = device_open("pm", 0, &pm_dev)) == 0) { |
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error = device_ioctl(pm_dev, PMIOC_SET_POWER, &state); |
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device_close(pm_dev); |
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} |
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if (error)
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printf("Error %d\n", error);
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} |
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static void |
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cmd_shutdown(int argc, char **argv) |
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{ |
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device_t pm_dev; |
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int error, state = PWR_OFF;
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if ((error = device_open("pm", 0, &pm_dev)) == 0) { |
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error = device_ioctl(pm_dev, PMIOC_SET_POWER, &state); |
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device_close(pm_dev); |
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} |
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if (error)
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printf("Error %d\n", error);
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} |
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int
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dispatch_cmd(int argc, char **argv) |
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{ |
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int i = 0; |
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while (cmd_table[i].cmd != NULL) { |
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if (!strcmp(argv[0], cmd_table[i].cmd)) { |
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(cmd_table[i].func)(argc, argv); |
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break;
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} |
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i++; |
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} |
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if (cmd_table[i].cmd == NULL) |
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printf("%s: command not found\n", argv[0]); |
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return 0; |
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} |