Exemple #1
0
/**
* @fn                   :tc_libc_spawn_task_spawnattr_SetGetstacksize
* @brief                :sets and gets the stack size attribute of the thread attributes object referred to by st_attr
* @scenario             :The stack size attribute determines the minimum size (in bytes) that will be allocated for
*                        threads created using the thread attributes object st_attr.
* @API's covered        :posix_spawnattr_init, task_spawnattr_setstacksize,task_spawnattr_getstacksize
* @Preconditions        :posix_spawnattr_init
* @Postconditions       :none
* @Return               :void
*/
static void tc_libc_spawn_task_spawnattr_setgetstacksize(void)
{
	int ret_chk = ERROR;
	pid_t pid;
	posix_spawnattr_t st_attr;
	size_t stacksize;

	ret_chk = posix_spawnattr_init(&st_attr);
	TC_ASSERT_EQ("posix_spawnattr_init", ret_chk, OK);

	ret_chk = task_spawnattr_setstacksize(&st_attr, SPAWN_STACKSIZE);
	TC_ASSERT_EQ("task_spawnattr_setstacksize", ret_chk, OK);

	ret_chk = task_spawn(&pid, "spawn_stacksize", function_name_spawn, NULL, &st_attr, (char *const *)NULL, (char *const *)NULL);
	sleep(SEC_4);
	TC_ASSERT_EQ("task_spawn", ret_chk, OK);

	ret_chk = task_spawnattr_getstacksize(&st_attr, &stacksize);
	TC_ASSERT_EQ("task_spawnattr_getstacksize", ret_chk, OK);
	TC_ASSERT_EQ("task_spawnattr_getstacksize", stacksize, SPAWN_STACKSIZE);

	TC_SUCCESS_RESULT();
}
Exemple #2
0
int exec_builtin(FAR const char *appname, FAR char * const *argv,
                 FAR const char *redirfile, int oflags)
{
  FAR const struct builtin_s *builtin;
  posix_spawnattr_t attr;
  posix_spawn_file_actions_t file_actions;
  struct sched_param param;
  pid_t pid;
  int index;
  int ret;

  /* Verify that an application with this name exists */

  index = builtin_isavail(appname);
  if (index < 0)
    {
      ret = ENOENT;
      goto errout_with_errno;
    }

  /* Get information about the builtin */

  builtin = builtin_for_index(index);
  if (builtin == NULL)
    { 
      ret = ENOENT;
      goto errout_with_errno;
    }

  /* Initialize attributes for task_spawn(). */

  ret = posix_spawnattr_init(&attr);
  if (ret != 0)
    {
      goto errout_with_errno;
    }

  ret = posix_spawn_file_actions_init(&file_actions);
  if (ret != 0)
    {
      goto errout_with_attrs;
    }

  /* Set the correct task size and priority */

  param.sched_priority = builtin->priority;
  ret = posix_spawnattr_setschedparam(&attr, &param);
  if (ret != 0)
    {
      goto errout_with_actions;
    }

  ret = task_spawnattr_setstacksize(&attr, builtin->stacksize);
  if (ret != 0)
    {
      goto errout_with_actions;
    }

   /* If robin robin scheduling is enabled, then set the scheduling policy
    * of the new task to SCHED_RR before it has a chance to run.
    */

#if CONFIG_RR_INTERVAL > 0
  ret = posix_spawnattr_setschedpolicy(&attr, SCHED_RR);
  if (ret != 0)
    {
      goto errout_with_actions;
    }

  ret = posix_spawnattr_setflags(&attr,
                                 POSIX_SPAWN_SETSCHEDPARAM |
                                 POSIX_SPAWN_SETSCHEDULER);
  if (ret != 0)
    {
      goto errout_with_actions;
    }
#else
  ret = posix_spawnattr_setflags(&attr, POSIX_SPAWN_SETSCHEDPARAM);
  if (ret != 0)
    {
      goto errout_with_actions;
    }
#endif

  /* Is output being redirected? */

  if (redirfile)
    {
      /* Set up to close open redirfile and set to stdout (1) */

      ret = posix_spawn_file_actions_addopen(&file_actions, 1,
                                             redirfile, O_WRONLY, 0644);
      if (ret != 0)
        {
          sdbg("ERROR: posix_spawn_file_actions_addopen failed: %d\n", ret);
          goto errout_with_actions;
        }
    }

  /* Start the built-in */

  ret = task_spawn(&pid, builtin->name, builtin->main, &file_actions,
                   &attr, (argv) ? &argv[1] : (FAR char * const *)NULL,
                   (FAR char * const *)NULL);
  if (ret != 0)
    {
      sdbg("ERROR: task_spawn failed: %d\n", ret);
      goto errout_with_actions;
    }

  /* Free attibutes and file actions.  Ignoring return values in the case
   * of an error.
   */

  /* Return the task ID of the new task if the task was sucessfully
   * started.  Otherwise, ret will be ERROR (and the errno value will
   * be set appropriately).
   */

  (void)posix_spawn_file_actions_destroy(&file_actions);
  (void)posix_spawnattr_destroy(&attr);
  return pid;

errout_with_actions:
  (void)posix_spawn_file_actions_destroy(&file_actions);

errout_with_attrs:
  (void)posix_spawnattr_destroy(&attr);

errout_with_errno:
  set_errno(ret);
  return ERROR;
}