time_cmd.c File Reference

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <gpxe/command.h>
#include <gpxe/nap.h>
#include <gpxe/timer.h>

Go to the source code of this file.

Functions
static int	time_exec (int argc, char **argv)
static int	sleep_exec (int argc, char **argv)
Variables
struct command time_command	__command

---

Function Documentation

static int time_exec	(	int	argc,
		char **	argv
	)			[static]

Definition at line 30 of file time_cmd.c.

References currticks(), execv(), printf(), strcmp(), and ticks_per_sec().

                                               {
        unsigned long start;
        int rc, secs;

        if ( argc == 1 ||
             !strcmp ( argv[1], "--help" ) ||
             !strcmp ( argv[1], "-h" ) )
        {
                printf ( "Usage:\n"
                         "  %s <command>\n"
                         "\n"
                         "Time a command\n",
                         argv[0] );
                return 1;
        }

        start = currticks();
        rc = execv ( argv[1], argv + 1 );
        secs = (currticks() - start) / ticks_per_sec();

        printf ( "%s: %ds\n", argv[0], secs );

        return rc;
}

static int sleep_exec	(	int	argc,
		char **	argv
	)			[static]

Definition at line 60 of file time_cmd.c.

References cpu_nap(), currticks(), delay, NULL, printf(), strcmp(), strtoul(), and ticks_per_sec().

                                                {
        unsigned long start, delay;

        if ( argc == 1 ||
             !strcmp ( argv[1], "--help" ) ||
             !strcmp ( argv[1], "-h" ))
        {
                printf ( "Usage:\n"
                         "  %s <seconds>\n"
                         "\n"
                         "Sleep for <seconds> seconds\n",
                         argv[0] );
                return 1;
        }
        start = currticks();
        delay = strtoul ( argv[1], NULL, 0 ) * ticks_per_sec();
        while ( ( currticks() - start ) <= delay )
                cpu_nap();
        return 0;
}

---

Variable Documentation

struct command sleep_command __command [read]

Initial value:

 {
        .name = "time",
        .exec = time_exec,
}

Definition at line 55 of file time_cmd.c.