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/*
* Task Create Shell Command Implmentation
*
* COPYRIGHT (c) 1989-2013.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#define _GNU_SOURCE
#include <sys/cpuset.h>
#include <stdio.h>
#define __need_getopt_newlib
#include <newlib/getopt.h>
#include <rtems.h>
#include "shell.h"
#include <rtems/stringto.h>
#include <schedsim_shell.h>
#include <rtems/error.h>
static void print_mode(
const char *prefix,
rtems_mode mode
)
{
printf(
"%sPreemption: %s Timeslicing: %s\n",
prefix,
((mode & RTEMS_NO_PREEMPT) ? "no" : "yes"),
((mode & RTEMS_TIMESLICE) ? "yes" : "no")
);
}
rtems_task dummy_task(
rtems_task_argument arg
)
{
}
int rtems_shell_main_task_create(
int argc,
char *argv[]
)
{
char *c_p;
char name[5];
rtems_id id;
rtems_status_code status;
long priority;
rtems_mode mode;
rtems_mode mask;
struct getopt_data getopt_reent;
char option;
int arg;
unsigned long affinity;
cpu_set_t cpuset;
bool do_affinity;
CHECK_RTEMS_IS_UP();
mode = 0;
mask = 0;
do_affinity = false;
memset(&getopt_reent, 0, sizeof(getopt_data));
while ( (option = getopt_r( argc, argv, "a:tTpP", &getopt_reent)) != -1 ) {
switch (option) {
case 'a':
c_p = getopt_reent.optarg;
if ( rtems_string_to_unsigned_long( c_p, &affinity, NULL, 0) ) {
fprintf( stderr, "Affinity (%s) is not a number\n", argv[2] );
return 1;
}
do_affinity = true;
CPU_ZERO( &cpuset );
cpuset.__bits[0] = affinity;
break;
case 't':
mask |= RTEMS_TIMESLICE_MASK;
mode = (mode & ~RTEMS_TIMESLICE_MASK) | RTEMS_NO_TIMESLICE;
break;
case 'T':
mask |= RTEMS_TIMESLICE_MASK;
mode = (mode & ~RTEMS_TIMESLICE_MASK) | RTEMS_TIMESLICE;
break;
case 'p':
mask |= RTEMS_PREEMPT_MASK;
mode = (mode & ~RTEMS_PREEMPT_MASK) | RTEMS_NO_PREEMPT;
break;
case 'P':
mask |= RTEMS_PREEMPT_MASK;
mode = (mode & ~RTEMS_PREEMPT_MASK) | RTEMS_PREEMPT;
break;
default:
fprintf( stderr, "%s: Usage [-tTpP]\n", argv[0] );
return -1;
}
}
print_mode( "Creating task with: ", mode );
/*
* Rest of arguments
*/
arg = getopt_reent.optind;
if ( ((argc - arg) != 2) && ((argc - arg) != 4) ){
fprintf( stderr, "%s: Usage [args] name priority -a affinity\n", argv[0] );
return -1;
}
if ( rtems_string_to_long(argv[arg+1], &priority, NULL, 0) ) {
printf( "Priority argument (%s) is not a number\n", argv[1] );
return -1;
}
/*
* Now create the task
*/
memset( name, '\0', sizeof(name) );
strncpy( name, argv[arg], 4 );
status = rtems_task_create(
rtems_build_name( name[0], name[1], name[2], name[3] ),
(rtems_task_priority) priority,
RTEMS_MINIMUM_STACK_SIZE,
mode,
RTEMS_DEFAULT_ATTRIBUTES,
&id
);
if ( status ) {
fprintf(
stderr,
"Task Create(%s) returned %s\n",
name,
rtems_status_text( status )
);
return -1;
}
printf(
"Task (%s) created: id=0x%08x, priority=%ld\n",
name,
id,
priority
);
/*
* If specified, set the affinity
*/
if ( do_affinity ) {
status = rtems_task_set_affinity( id, sizeof(cpuset), &cpuset );
if ( status != RTEMS_SUCCESSFUL ) {
fprintf(
stderr,
"Task Set Affinity(0x%08x) returned %s\n"
"Deleting task 0x%08x\n",
affinity,
rtems_status_text( status ),
id
);
rtems_task_delete( id );
return -1;
}
printf("Task (0x%08x) Set affinity=0x%08x\n", id, cpuset.__bits[0] );
}
/*
* Starting the task
*/
printf(
"Task (%s) starting: id=0x%08x, priority=%ld\n",
name,
id,
priority
);
status = rtems_task_start( id, dummy_task, 1 );
if ( status ) {
fprintf(
stderr,
"Task Start(%s) returned %s\n",
name,
rtems_status_text( status )
);
return -1;
}
return 0;
}
rtems_shell_cmd_t rtems_shell_TASK_CREATE_Command = {
"task_create", /* name */
"task_create name priority", /* usage */
"rtems", /* topic */
rtems_shell_main_task_create, /* command */
NULL, /* alias */
NULL /* next */
};
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