forked from xuos/xiuos
51 lines
1.4 KiB
C
51 lines
1.4 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 sys_exit.c
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* @brief task exit syscall
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* @version 3.0
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* @author AIIT XUOS Lab
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* @date 2023.08.25
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*/
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/*************************************************
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File name: sys_exit.c
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Description: task exit syscall
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Others:
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History:
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1. Date: 2023-08-28
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Author: AIIT XUOS Lab
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Modification:
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1. first version
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*************************************************/
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#include "trap_common.h"
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#include "actracer.h"
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#include "assert.h"
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#include "list.h"
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#include "multicores.h"
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#include "syscall.h"
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#include "task.h"
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int sys_exit(struct Thread* ptask)
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{
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assert(ptask != NULL);
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ptask->dead = true;
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// free that task straightly if it's a blocked task
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if (ptask->state == BLOCKED) {
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xizi_task_manager.free_pcb(ptask);
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}
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// yield current task in case it wants to exit itself
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xizi_task_manager.task_yield_noschedule(cur_cpu()->task, false);
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return 0;
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}
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