diff options
-rw-r--r-- | cpukit/score/include/rtems/score/threadimpl.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/cpukit/score/include/rtems/score/threadimpl.h b/cpukit/score/include/rtems/score/threadimpl.h index 61b498a9cf..bfaf1fdf67 100644 --- a/cpukit/score/include/rtems/score/threadimpl.h +++ b/cpukit/score/include/rtems/score/threadimpl.h @@ -494,6 +494,36 @@ RTEMS_INLINE_ROUTINE bool _Thread_Is_executing_on_a_processor( #endif /** + * @brief Returns @true and sets time_of_context_switch to the the + * time of the last context switch when the thread is currently executing + * in the system, otherwise @a false. + */ +RTEMS_INLINE_ROUTINE bool _Thread_Get_time_of_last_context_switch( + Thread_Control *the_thread, + Timestamp_Control *time_of_context_switch +) +{ + bool retval = false; + + _Thread_Disable_dispatch(); + #ifndef RTEMS_SMP + if ( _Thread_Executing->Object.id == the_thread->Object.id ) { + *time_of_context_switch = _Thread_Time_of_last_context_switch; + retval = true; + } + #else + if ( _Thread_Is_executing_on_a_processor( the_thread ) ) { + *time_of_context_switch = + _Thread_Get_CPU( the_thread )->time_of_last_context_switch; + retval = true; + } + #endif + _Thread_Enable_dispatch(); + return retval; +} + + +/** * This function returns true if the_thread is the heir * thread, and false otherwise. */ |