Function nxtask_spawn_create

sched/task/task_spawn.c:82–140

 ****************************************************************************/

static int nxtask_spawn_create(FAR const char *name, int priority,
                              FAR void *stack_addr, int stack_size,
                              main_t entry, FAR char * const argv[],
                              FAR char * const envp[],
                              FAR const posix_spawn_file_actions_t *actions,
                              FAR const posix_spawnattr_t *attr)
{
  FAR struct tcb_s *tcb;
  pid_t pid;
  int ret;

  /* Allocate a TCB for the new task. */

  tcb = kmm_zalloc(sizeof(struct tcb_s));
  if (tcb == NULL)
    {
      serr("ERROR: Failed to allocate TCB\n");
      return -ENOMEM;
    }

  /* Setup the task type */

  tcb->flags = TCB_FLAG_TTYPE_TASK | TCB_FLAG_FREE_TCB;

  /* Initialize the task */

  ret = nxtask_init(tcb, name, priority, stack_addr, stack_size,
                    entry, argv, envp, actions);
  if (ret < OK)
    {
      kmm_free(tcb);
      return ret;
    }

  /* Get the assigned pid before we start the task */

  pid = tcb->pid;

  /* Set the attributes */

  if (attr)
    {
      ret = spawn_execattrs(pid, attr);
      if (ret < 0)
        {
          goto errout_with_taskinit;
        }
    }

  /* Activate the task */

  nxtask_activate(tcb);

  return pid;

errout_with_taskinit:
  nxtask_uninit(tcb);
  return ret;