1 /* 2 * Copyright (C) 2009 Daniel Verkamp <daniel (at) drv.nu>. 3 * 4 * This program is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU General Public License as 6 * published by the Free Software Foundation; either version 2 of the 7 * License, or any later version. 8 * 9 * This program is distributed in the hope that it will be useful, but 10 * WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * General Public License for more details. 13 * 14 * You should have received a copy of the GNU General Public License 15 * along with this program; if not, write to the Free Software 16 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 17 * 18 * March-19-2009 @ 02:44: Added sleep command. 19 * Shao Miller <shao.miller (at) yrdsb.edu.on.ca>. 20 */ 21 22 #include <stdio.h> 23 #include <stdlib.h> 24 #include <string.h> 25 #include <unistd.h> 26 #include <gpxe/command.h> 27 #include <gpxe/nap.h> 28 #include <gpxe/timer.h> 29 30 static int time_exec ( int argc, char **argv ) { 31 unsigned long start; 32 int rc, secs; 33 34 if ( argc == 1 || 35 !strcmp ( argv[1], "--help" ) || 36 !strcmp ( argv[1], "-h" ) ) 37 { 38 printf ( "Usage:\n" 39 " %s <command>\n" 40 "\n" 41 "Time a command\n", 42 argv[0] ); 43 return 1; 44 } 45 46 start = currticks(); 47 rc = execv ( argv[1], argv + 1 ); 48 secs = (currticks() - start) / ticks_per_sec(); 49 50 printf ( "%s: %ds\n", argv[0], secs ); 51 52 return rc; 53 } 54 55 struct command time_command __command = { 56 .name = "time", 57 .exec = time_exec, 58 }; 59 60 static int sleep_exec ( int argc, char **argv ) { 61 unsigned long start, delay; 62 63 if ( argc == 1 || 64 !strcmp ( argv[1], "--help" ) || 65 !strcmp ( argv[1], "-h" )) 66 { 67 printf ( "Usage:\n" 68 " %s <seconds>\n" 69 "\n" 70 "Sleep for <seconds> seconds\n", 71 argv[0] ); 72 return 1; 73 } 74 start = currticks(); 75 delay = strtoul ( argv[1], NULL, 0 ) * ticks_per_sec(); 76 while ( ( currticks() - start ) <= delay ) 77 cpu_nap(); 78 return 0; 79 } 80 81 struct command sleep_command __command = { 82 .name = "sleep", 83 .exec = sleep_exec, 84 }; 85
