blob: 892c371d0fc136384f19e8b3888ad847a9a16841 (
plain) (
tree)
|
|
/**
* @file
*
* @brief Scheduler CBS Get Remaining Budget
* @ingroup ScoreScheduler
*/
/*
* Copyright (C) 2011 Petr Benes.
* Copyright (C) 2011 On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/system.h>
#include <rtems/config.h>
#include <rtems/score/scheduler.h>
#include <rtems/score/schedulercbs.h>
#include <rtems/score/threaddispatch.h>
int _Scheduler_CBS_Get_remaining_budget (
Scheduler_CBS_Server_id server_id,
time_t *remaining_budget
)
{
Objects_Locations location;
Thread_Control *the_thread;
if ( server_id >= _Scheduler_CBS_Maximum_servers )
return SCHEDULER_CBS_ERROR_INVALID_PARAMETER;
if ( !_Scheduler_CBS_Server_list[server_id] )
return SCHEDULER_CBS_ERROR_NOSERVER;
if ( _Scheduler_CBS_Server_list[server_id]->task_id == -1 ) {
*remaining_budget = _Scheduler_CBS_Server_list[server_id]->parameters.budget;
return SCHEDULER_CBS_OK;
}
the_thread = _Thread_Get(
_Scheduler_CBS_Server_list[server_id]->task_id,
&location
);
/* The routine _Thread_Get may disable dispatch and not enable again. */
if ( the_thread ) {
_Thread_Enable_dispatch();
*remaining_budget = the_thread->cpu_time_budget;
}
else {
*remaining_budget = 0;
}
return SCHEDULER_CBS_OK;
}
|