forked from Imagelibrary/rtems
93 lines
2.2 KiB
C
93 lines
2.2 KiB
C
/*
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* Time Shell Command Implmentation
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*
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* Author: Chris Johns <chrisj@rtems.org>
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rtems.org/license/LICENSE.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <stdio.h>
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#include <unistd.h>
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#include <string.h>
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#include <inttypes.h>
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#include <errno.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <rtems.h>
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#include <rtems/shell.h>
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#include "internal.h"
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/* Helper macro to print "time_t" */
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#if SIZEOF_TIME_T == 8
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#define PRIdtime_t PRId64
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#elif SIZEOF_TIME_T == 4
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#define PRIdtime_t PRId32
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#else
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#error "PRIdtime_t: unsupported size of time_t"
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#endif
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static int rtems_shell_main_time(
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int argc,
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char *argv[]
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)
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{
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rtems_shell_cmd_t* shell_cmd;
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int errorlevel = 0;
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struct timespec start;
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struct timespec end;
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struct timespec period;
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rtems_status_code sc;
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argc--;
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sc = rtems_clock_get_uptime(&start);
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if (sc != RTEMS_SUCCESSFUL)
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printf("error: cannot read time\n");
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if (argc) {
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shell_cmd = rtems_shell_lookup_cmd(argv[1]);
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if ( argv[1] == NULL ) {
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errorlevel = -1;
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} else if ( shell_cmd == NULL ) {
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errorlevel = rtems_shell_script_file(argc, &argv[1]);
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} else {
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errorlevel = shell_cmd->command(argc, &argv[1]);
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}
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}
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sc = rtems_clock_get_uptime(&end);
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if (sc != RTEMS_SUCCESSFUL)
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printf("error: cannot read time\n");
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period.tv_sec = end.tv_sec - start.tv_sec;
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period.tv_nsec = end.tv_nsec - start.tv_nsec;
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if (period.tv_nsec < 0)
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{
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--period.tv_sec;
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period.tv_nsec += 1000000000UL;
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}
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printf("time: %" PRIdtime_t ":%02" PRIdtime_t ":%02" PRIdtime_t ".%03li\n",
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period.tv_sec / 3600,
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period.tv_sec / 60, period.tv_sec % 60,
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period.tv_nsec / 1000000);
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return errorlevel;
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}
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rtems_shell_cmd_t rtems_shell_TIME_Command = {
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"time", /* name */
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"time command [arguments...]", /* usage */
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"misc", /* topic */
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rtems_shell_main_time, /* command */
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NULL, /* alias */
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NULL /* next */
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};
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