nuttx

enum tstate_e
{
  TSTATE_TASK_INVALID = 0, /* INVALID - The TCB is uninitialized */
  TSTATE_TASK_PENDING, /* READY_TO_RUN - Pending preemption unlock */
  TSTATE_TASK_READYTORUN, /* READY-TO-RUN - But not running */
  TSTATE_TASK_RUNNING, /* READY_TO_RUN - And running */

  TSTATE_TASK_INACTIVE, /* BLOCKED - Initialized but not yet activated */
  TSTATE_WAIT_SEM, /* BLOCKED - Waiting for a semaphore */
#ifndef CONFIG_DISABLE_SIGNALS
  TSTATE_WAIT_SIG, /* BLOCKED - Waiting for a signal */
#endif
#ifndef CONFIG_DISABLE_MQUEUE
  TSTATE_WAIT_MQNOTEMPTY, /* BLOCKED - Waiting for a MQ to become not empty. */
  TSTATE_WAIT_MQNOTFULL, /* BLOCKED - Waiting for a MQ to become not full. */
#endif
#ifdef CONFIG_PAGING
 TSTATE_WAIT_PAGEFILL, /* BLOCKED - Waiting for page fill */
#endif
  NUM_TASK_STATES /* Must be last */
};