forked from xuos/xiuos
59 lines
1.8 KiB
C
59 lines
1.8 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_spawn.c
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* @brief spawn a task
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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_spawn.c
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Description: spawn a task
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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 "actracer.h"
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#include "assert.h"
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#include "share_page.h"
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#include "syscall.h"
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#include "task.h"
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extern int task_exec(struct TaskMicroDescriptor* task, struct Session* session, int fd, ipc_read_fn ipc_read, char* name, char** argv);
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int sys_spawn(struct KernReadTool* read_tool, char* name, char** argv)
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{
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// alloc a new pcb
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struct TaskMicroDescriptor* new_task_cb = xizi_task_manager.new_task_cb();
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if (UNLIKELY(!new_task_cb)) {
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ERROR("Unable to new task control block.\n");
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return -1;
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}
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// init trapframe
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arch_init_trapframe(new_task_cb->main_thread.trapframe, 0, 0);
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struct Session* session = read_tool->session;
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int fd = read_tool->fd;
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ipc_read_fn ipc_read = read_tool->ipc_read;
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if (UNLIKELY(task_exec(new_task_cb, session, fd, ipc_read, name, argv)) < 0) {
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xizi_task_manager.free_pcb(new_task_cb);
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return -1;
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}
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// init pcb
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xizi_task_manager.task_set_default_schedule_attr(new_task_cb, RequireRootTag());
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return 0;
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} |