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Code Issues Releases Wiki Activity

new: kthread机制

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This commit is contained in:
fslongjin
2022-09-30 15:30:50 +08:00
parent edef02286e
commit 02a6b3a303
21 changed files with 802 additions and 326 deletions
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30
kernel/process/process.h
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@ -52,7 +52,6 @@
*
*/
// 设置初始进程的tss
#define INITIAL_TSS \
{ \
@ -73,17 +72,15 @@
.io_map_base_addr = 0 \
}
#define GET_CURRENT_PCB \
"movq %rsp, %rbx \n\t" \
"andq $-32768, %rbx\n\t"
/**
* @brief 切换进程上下文
* 先把rbp和rax保存到栈中，然后将rsp和rip保存到prev的thread结构体中
* 然后调用__switch_to切换栈，配置其他信息，最后恢复下一个进程的rax rbp。
*/
/**
* @brief 切换进程上下文
* 先把rbp和rax保存到栈中，然后将rsp和rip保存到prev的thread结构体中
* 然后调用__switch_to切换栈，配置其他信息，最后恢复下一个进程的rax rbp。
*/
#define switch_proc(prev, next) \
do \
@ -134,14 +131,14 @@ struct process_control_block *process_get_pcb(long pid);
*
* @param pcb 进程的pcb
*/
void process_wakeup(struct process_control_block *pcb);
int process_wakeup(struct process_control_block *pcb);
/**
* @brief 将进程加入到调度器的就绪队列中，并标志当前进程需要被调度
*
* @param pcb 进程的pcb
*/
void process_wakeup_immediately(struct process_control_block *pcb);
int process_wakeup_immediately(struct process_control_block *pcb);
/**
* @brief 使当前进程去执行新的代码
@ -185,7 +182,17 @@ void process_exit_notify();
* @return int
*/
int kernel_thread(unsigned long (*fn)(unsigned long), unsigned long arg, unsigned long flags);
pid_t kernel_thread(int (*fn)(void*), void* arg, unsigned long flags);
int process_fd_alloc(struct vfs_file_t *file);
/**
* @brief 释放pcb
*
* @param pcb
* @return int
*/
int process_release_pcb(struct process_control_block *pcb);
/**
* @brief 切换页表
@ -213,4 +220,3 @@ extern struct mm_struct initial_mm;
extern struct thread_struct initial_thread;
extern union proc_union initial_proc_union;
extern struct process_control_block *initial_proc[MAX_CPU_NUM];
int process_fd_alloc(struct vfs_file_t *file);