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/**
* @file
*
* @brief Scheduler CBS Get Remaining Budget
* @ingroup RTEMSScoreScheduler
*/
/*
* 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.org/license/LICENSE.
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/score/schedulercbs.h>
#include <rtems/score/threadimpl.h>
int _Scheduler_CBS_Get_remaining_budget (
Scheduler_CBS_Server_id server_id,
time_t *remaining_budget
)
{
Scheduler_CBS_Server *server;
ISR_lock_Context lock_context;
Thread_Control *the_thread;
if ( server_id >= _Scheduler_CBS_Maximum_servers ) {
return SCHEDULER_CBS_ERROR_INVALID_PARAMETER;
}
server = &_Scheduler_CBS_Server_list[ server_id ];
if ( !server->initialized ) {
return SCHEDULER_CBS_ERROR_NOSERVER;
}
if ( server->task_id == -1 ) {
*remaining_budget = server->parameters.budget;
return SCHEDULER_CBS_OK;
}
the_thread = _Thread_Get( server->task_id, &lock_context );
if ( the_thread != NULL ) {
*remaining_budget = the_thread->cpu_time_budget;
_ISR_lock_ISR_enable( &lock_context );
} else {
*remaining_budget = 0;
}
return SCHEDULER_CBS_OK;
}
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