diff options
Diffstat (limited to 'cpukit/posix/src/pthreadcreate.c')
-rw-r--r-- | cpukit/posix/src/pthreadcreate.c | 36 |
1 files changed, 34 insertions, 2 deletions
diff --git a/cpukit/posix/src/pthreadcreate.c b/cpukit/posix/src/pthreadcreate.c index 9474d07032..093ad5cfe1 100644 --- a/cpukit/posix/src/pthreadcreate.c +++ b/cpukit/posix/src/pthreadcreate.c @@ -34,9 +34,11 @@ #include <rtems/posix/pthreadimpl.h> #include <rtems/posix/pthreadattrimpl.h> #include <rtems/score/assert.h> +#include <rtems/score/threadcpubudget.h> #include <rtems/score/threadimpl.h> #include <rtems/score/apimutex.h> #include <rtems/score/stackimpl.h> +#include <rtems/score/statesimpl.h> #include <rtems/score/schedulerimpl.h> #include <rtems/score/userextimpl.h> #include <rtems/sysinit.h> @@ -348,7 +350,9 @@ void _POSIX_Threads_Sporadic_timer( Watchdog_Control *watchdog ) _Thread_Priority_update( &queue_context ); } -void _POSIX_Threads_Sporadic_budget_callout( Thread_Control *the_thread ) +static void _POSIX_Threads_Sporadic_budget_callout( + Thread_Control *the_thread +) { POSIX_API_Control *api; Thread_queue_Context queue_context; @@ -363,7 +367,7 @@ void _POSIX_Threads_Sporadic_budget_callout( Thread_Control *the_thread ) * This will prevent the thread from consuming its entire "budget" * while at low priority. */ - the_thread->cpu_time_budget = UINT32_MAX; + the_thread->CPU_budget.available = UINT32_MAX; if ( !_Priority_Node_is_active( &api->Sporadic.Low_priority ) ) { _Thread_Priority_add( @@ -382,6 +386,34 @@ void _POSIX_Threads_Sporadic_budget_callout( Thread_Control *the_thread ) _Thread_Priority_update( &queue_context ); } +static void _POSIX_Threads_Sporadic_budget_at_tick( Thread_Control *the_thread ) +{ + uint32_t budget_available; + + if ( !the_thread->is_preemptible ) { + return; + } + + if ( !_States_Is_ready( the_thread->current_state ) ) { + return; + } + + budget_available = the_thread->CPU_budget.available; + + if ( budget_available == 1 ) { + the_thread->CPU_budget.available = 0; + _POSIX_Threads_Sporadic_budget_callout ( the_thread ); + } else { + the_thread->CPU_budget.available = budget_available - 1; + } +} + +const Thread_CPU_budget_operations _POSIX_Threads_Sporadic_budget = { + .at_tick = _POSIX_Threads_Sporadic_budget_at_tick, + .at_context_switch = _Thread_CPU_budget_do_nothing, + .initialize = _Thread_CPU_budget_do_nothing +}; + static bool _POSIX_Threads_Create_extension( Thread_Control *executing, Thread_Control *created |