/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* @ingroup RTEMSScoreSchedulerCBS
*
* @brief This source file contains the implementation of
* _Scheduler_CBS_Get_remaining_budget().
*/
/*
* Copyright (C) 2011 Petr Benes.
* Copyright (C) 2011 On-Line Applications Research Corporation (OAR).
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef 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_budget.available;
_ISR_lock_ISR_enable( &lock_context );
} else {
*remaining_budget = 0;
}
return SCHEDULER_CBS_OK;
}
