diff options
Diffstat (limited to 'cpukit/score/include/rtems/score/thread.h')
| -rw-r--r-- | cpukit/score/include/rtems/score/thread.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/cpukit/score/include/rtems/score/thread.h b/cpukit/score/include/rtems/score/thread.h index 60583a77c0..56b9b0cdf9 100644 --- a/cpukit/score/include/rtems/score/thread.h +++ b/cpukit/score/include/rtems/score/thread.h @@ -384,6 +384,30 @@ struct Thread_Control_struct { #endif /** This field is true if the thread is preemptible. */ bool is_preemptible; +#if defined(RTEMS_SMP) + /** + * @brief This field is true if the thread is scheduled. + * + * A thread is scheduled if it is ready and the scheduler allocated a + * processor for it. A scheduled thread is assigned to exactly one + * processor. There are exactly processor count scheduled threads in the + * system. + */ + bool is_scheduled; + + /** + * @brief This field is true if the thread is executing. + * + * A thread is executing if it executes on a processor. An executing thread + * executes on exactly one processor. There are exactly processor count + * executing threads in the system. An executing thread may have a heir + * thread and thread dispatching is necessary. On SMP a thread dispatch on a + * remote processor needs help from an inter-processor interrupt, thus it + * will take some time to complete the state change. A lot of things can + * happen in the meantime. + */ + bool is_executing; +#endif #if __RTEMS_ADA__ /** This field is the GNAT self context pointer. */ void *rtems_ada_self; @@ -408,6 +432,10 @@ struct Thread_Control_struct { /** This pointer holds per-thread data for the scheduler and ready queue. */ void *scheduler_info; +#ifdef RTEMS_SMP + Per_CPU_Control *cpu; +#endif + /** This field contains information about the starting state of * this thread. */ |