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Annotation of qemu/roms/ipxe/src/hci/commands/time_cmd.c, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (C) 2009 Daniel Verkamp <[email protected]>.
                      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 <[email protected]>.
                     20:  */
                     21: 
                     22: FILE_LICENCE ( GPL2_OR_LATER );
                     23: 
                     24: #include <stdio.h>
                     25: #include <stdlib.h>
                     26: #include <string.h>
                     27: #include <unistd.h>
                     28: #include <ipxe/command.h>
                     29: #include <ipxe/parseopt.h>
                     30: #include <ipxe/nap.h>
                     31: #include <ipxe/timer.h>
                     32: 
                     33: /** @file
                     34:  *
                     35:  * Time commands
                     36:  *
                     37:  */
                     38: 
                     39: /** "time" options */
                     40: struct time_options {};
                     41: 
                     42: /** "time" option list */
                     43: static struct option_descriptor time_opts[] = {};
                     44: 
                     45: /** "time" command descriptor */
                     46: static struct command_descriptor time_cmd =
                     47:        COMMAND_DESC ( struct time_options, time_opts, 1, MAX_ARGUMENTS,
                     48:                       "<command>" );
                     49: 
                     50: /**
                     51:  * "time" command
                     52:  *
                     53:  * @v argc             Argument count
                     54:  * @v argv             Argument list
                     55:  * @ret rc             Return status code
                     56:  */
                     57: static int time_exec ( int argc, char **argv ) {
                     58:        struct time_options opts;
                     59:        unsigned long start;
                     60:        int secs;
                     61:        int rc;
                     62: 
                     63:        /* Parse options */
                     64:        if ( ( rc = parse_options ( argc, argv, &time_cmd, &opts ) ) != 0 )
                     65:                return rc;
                     66: 
                     67:        start = currticks();
                     68:        rc = execv ( argv[1], argv + 1 );
                     69:        secs = (currticks() - start) / ticks_per_sec();
                     70: 
                     71:        printf ( "%s: %ds\n", argv[0], secs );
                     72: 
                     73:        return rc;
                     74: }
                     75: 
                     76: /** "time" command */
                     77: struct command time_command __command = {
                     78:        .name = "time",
                     79:        .exec = time_exec,
                     80: };
                     81: 
                     82: /** "sleep" options */
                     83: struct sleep_options {};
                     84: 
                     85: /** "sleep" option list */
                     86: static struct option_descriptor sleep_opts[] = {};
                     87: 
                     88: /** "sleep" command descriptor */
                     89: static struct command_descriptor sleep_cmd =
                     90:        COMMAND_DESC ( struct sleep_options, sleep_opts, 1, 1, "<seconds>" );
                     91: 
                     92: /**
                     93:  * "sleep" command
                     94:  *
                     95:  * @v argc             Argument count
                     96:  * @v argv             Argument list
                     97:  * @ret rc             Return status code
                     98:  */
                     99: static int sleep_exec ( int argc, char **argv ) {
                    100:        struct sleep_options opts;
                    101:        unsigned long start, delay;
                    102:        int rc;
                    103: 
                    104:        /* Parse options */
                    105:        if ( ( rc = parse_options ( argc, argv, &sleep_cmd, &opts ) ) != 0 )
                    106:                return rc;
                    107: 
                    108:        start = currticks();
                    109:        delay = strtoul ( argv[1], NULL, 0 ) * ticks_per_sec();
                    110:        while ( ( currticks() - start ) <= delay )
                    111:                cpu_nap();
                    112:        return 0;
                    113: }
                    114: 
                    115: /** "sleep" command */
                    116: struct command sleep_command __command = {
                    117:        .name = "sleep",
                    118:        .exec = sleep_exec,
                    119: };

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