spec:/score/thread/val/smp

Tests SMP-specific thread behaviour. More...

Files
file	tc-score-smp-thread.c

Data Structures
struct	ScoreThreadValSmp_Context
	Test context for spec:/score/thread/val/smp test case. More...

Macros
#define	EVENT_OBTAIN   RTEMS_EVENT_0
#define	EVENT_RELEASE   RTEMS_EVENT_1
#define	EVENT_COUNT_EARLY   RTEMS_EVENT_2
#define	EVENT_BUSY   RTEMS_EVENT_3
#define	EVENT_COUNT   RTEMS_EVENT_4
#define	EVENT_LET_WORKER_C_COUNT   RTEMS_EVENT_5
#define	EVENT_SET_TASK_SWITCH_EXTENSION   RTEMS_EVENT_6

Typedefs
typedef ScoreThreadValSmp_Context	Context

Functions
	T_TEST_CASE_FIXTURE (ScoreThreadValSmp, &ScoreThreadValSmp_Fixture)

Detailed Description

Tests SMP-specific thread behaviour.

This test case performs the following actions:

• Create three worker threads and a mutex. Use the mutex and the worker to move to a helping scheduler.
  • Pin the runner thread while it executes on a processor owned by a helping scheduler.
  • Pin and unpin the runner thread. This is a nested operation.
  • Preempt the pinned runner thread. Worker B and C execute at the same time on processor 0 and 1 respectively for some point in time. This shows that the pinning of the runner thread is maintained.
  • Unpin the runner thread. The runner moves back to its home scheduler.
  • Release the mutex.
  • Pin the runner thread. Unpin the runner thread while it is suspended.
  • Make sure the worker released the mutex.
  • Clean up all used resources.
• Create three worker threads and a mutex. Use the mutex and the worker to check that a suspended thread does not reconsider help requests.
  • Let worker B help worker A through the mutex. Preempt worker A. Delay the thread switch to worker A.
  • Suspend worker A and let it wait on its thread state lock. Check that worker A did not reconsider help requests.
  • Resume worker A. Check that worker A did reconsider help requests after the thread dispatch.
  • Clean up all used resources.