62 lines
1.3 KiB
C
62 lines
1.3 KiB
C
#ifndef CRASHPOWEROS_TASK_H
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#define CRASHPOWEROS_TASK_H
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#include "memory.h"
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typedef
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enum task_state {
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TASK_UNINIT = 0, // 未初始化
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TASK_SLEEPING = 1, // 睡眠中
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TASK_RUNNABLE = 2, // 可运行(也许正在运行)
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TASK_ZOMBIE = 3, // 僵尸状态
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TASK_DEATH = 4 // 终止状态
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} task_state;
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struct context {
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uint32_t esp;
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uint32_t ebp;
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uint32_t ebx;
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uint32_t esi;
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uint32_t edi;
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uint32_t eflags;
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};
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// 进程控制块 PCB
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struct task_struct {
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volatile task_state state; // 进程当前状态
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int pid; // 进程标识符
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char *name; // 进程名
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void *stack; // 进程的内核栈地址
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page_directory_t *pgd_dir; // 进程页表
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struct context context; // 上下文信息
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struct task_struct *next; // 链表指针
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};
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void print_proc_t(int *i,struct task_struct *base,struct task_struct *cur,int is_print);
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struct task_struct* get_current();
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int32_t kernel_thread(int (*fn)(void *), void *arg, char *name);
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void kthread_exit();
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void print_proc();
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void init_sched();
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void schedule();
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void change_task_to(struct task_struct *next);
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void task_kill(int pid);
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void kill_all_task();
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struct task_struct* found_task_pid(int pid);
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void wait_task(struct task_struct *task);
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void start_task(struct task_struct *task);
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#endif //CRASHPOWEROS_TASK_H
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