forked from xuos/xiuos
80 lines
2.6 KiB
C
80 lines
2.6 KiB
C
/*
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* Copyright (c) 2020 AIIT XUOS Lab
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* XiUOS is licensed under Mulan PSL v2.
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* You can use this software according to the terms and conditions of the Mulan PSL v2.
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* You may obtain a copy of Mulan PSL v2 at:
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* http://license.coscl.org.cn/MulanPSL2
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PSL v2 for more details.
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*/
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/**
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* @file: assign_roundrobin.c
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* @brief: ready table and timeslice functions definitions of remain ticks first scheduler algorithm
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* @version: 1.0
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* @author: AIIT XUOS Lab
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* @date: 2020/3/15
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*
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*/
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#include <xiuos.h>
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void RoundRobinRemainTaskTimesliceInit(struct TaskDescriptor *task)
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{
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NULL_PARAM_CHECK(task);
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task->task_dync_sched_member.origin_timeslice = 10;
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task->task_dync_sched_member.rest_timeslice = 10;
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}
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void RoundRobinRemainReadyVectorInsert(struct TaskDescriptor *task, struct OsAssignReadyVector* ready_table)
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{
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DoubleLinklistType* node = NONE;
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DoubleLinklistType* tail = NONE;
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struct TaskDescriptor *tmp = NONE;
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NULL_PARAM_CHECK(task);
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NULL_PARAM_CHECK(ready_table);
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if ( task->task_dync_sched_member.advance_cnt < KTASK_MAX_ADVANCE_PROCESS_TIME ) {
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DOUBLE_LINKLIST_FOR_EACH(node, &ready_table->priority_ready_vector[task->task_dync_sched_member.cur_prio]) {
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tmp = SYS_DOUBLE_LINKLIST_ENTRY(node, struct TaskDescriptor, task_dync_sched_member.sched_link);
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if (task->task_dync_sched_member.rest_timeslice < tmp->task_dync_sched_member.rest_timeslice) {
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break;
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}
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}
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if ( node != &ready_table->priority_ready_vector[task->task_dync_sched_member.cur_prio]) {
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DoubleLinkListInsertNodeBefore(node, &(task->task_dync_sched_member.sched_link));
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} else {
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tail = ready_table->priority_ready_vector[task->task_dync_sched_member.cur_prio].node_prev;
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DoubleLinkListInsertNodeAfter(tail, &(task->task_dync_sched_member.sched_link));
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}
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} else {
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tail = ready_table->priority_ready_vector[task->task_dync_sched_member.cur_prio].node_prev;
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DoubleLinkListInsertNodeAfter(tail, &(task->task_dync_sched_member.sched_link));
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}
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}
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void RoundRobinRemainTaskTimesliceUpdate(struct TaskDescriptor *task)
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{
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NULL_PARAM_CHECK(task);
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-- task->task_dync_sched_member.rest_timeslice;
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if (task->task_dync_sched_member.rest_timeslice == 0)
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{
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if ( task->task_dync_sched_member.advance_cnt < KTASK_MAX_ADVANCE_PROCESS_TIME ) {
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task->task_dync_sched_member.advance_cnt++;
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}
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task->task_dync_sched_member.rest_timeslice = task->task_dync_sched_member.origin_timeslice;
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DO_KTASK_ASSIGN;
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}
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}
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