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* 添加completion模块+wait_queue_head模块+schedule_timeout * 修复一些bug * 实现设置pcb名字和vsnprintf (#72) * 实现pcb设置名字 * 实现设置pcb名字,实现vsnprintf * 修改set_pcb_name和va_end * bugfix: 修正一些小问题 Co-authored-by: longjin <longjin@RinGoTek.cn> * new: FAT32删除文件的功能 (#73) * new: 将sys_rmdir更改为sys_unlink,.且完成删除文件操作的vfs部分 * new: fat32删除文件 *bugfix: 解决创建文件时的bug * new: 将可执行文件移动到bin目录下 * 完善completion和wait_queue_head文档,并确保测试ok。 Co-authored-by: longjin <longjin@RinGoTek.cn> Co-authored-by: houmkh <100781004+houmkh@users.noreply.github.com>
178 lines
4.5 KiB
C
178 lines
4.5 KiB
C
#include "timer.h"
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#include <common/kprint.h>
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#include <driver/timers/HPET/HPET.h>
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#include <exception/softirq.h>
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#include <mm/slab.h>
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#include <process/process.h>
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#include <sched/sched.h>
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struct timer_func_list_t timer_func_head;
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static spinlock_t sched_lock;
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// 定时器循环阈值,每次最大执行20个定时器任务
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#define TIMER_RUN_CYCLE_THRESHOLD 20
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void test_timer()
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{
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printk_color(ORANGE, BLACK, "(test_timer)");
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}
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void timer_init()
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{
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spin_init(&sched_lock);
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timer_jiffies = 0;
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timer_func_init(&timer_func_head, NULL, NULL, -1UL);
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register_softirq(TIMER_SIRQ, &do_timer_softirq, NULL);
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struct timer_func_list_t *tmp = (struct timer_func_list_t *)kmalloc(sizeof(struct timer_func_list_t), 0);
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timer_func_init(tmp, &test_timer, NULL, 5);
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timer_func_add(tmp);
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kdebug("timer func initialized.");
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}
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/**
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* @brief 处理时间软中断
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*
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* @param data
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*/
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void do_timer_softirq(void *data)
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{
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// todo: 修改这里以及 softirq 的部分,使得 timer 具有并行性
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struct timer_func_list_t *tmp = container_of(list_next(&timer_func_head.list), struct timer_func_list_t, list);
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int cycle_count = 0;
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while ((!list_empty(&timer_func_head.list)) && (tmp->expire_jiffies <= timer_jiffies))
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{
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spin_lock(&sched_lock);
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timer_func_del(tmp);
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tmp->func(tmp->data);
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kfree(tmp);
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spin_unlock(&sched_lock);
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++cycle_count;
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// kdebug("SOLVE SOFT IRQ %d", cycle_count);
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// 当前定时器达到阈值
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if (cycle_count == TIMER_RUN_CYCLE_THRESHOLD)
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break;
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tmp = container_of(list_next(&timer_func_head.list), struct timer_func_list_t, list);
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}
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}
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/**
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* @brief 初始化定时功能
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*
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* @param timer_func 队列结构体
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* @param func 定时功能处理函数
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* @param data 传输的数据
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* @param expire_ms 定时时长(单位:ms)
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*/
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void timer_func_init(struct timer_func_list_t *timer_func, void (*func)(void *data), void *data, uint64_t expire_ms)
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{
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list_init(&timer_func->list);
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timer_func->func = func;
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timer_func->data = data;
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timer_func->expire_jiffies = cal_next_n_ms_jiffies(expire_ms); // 设置过期的时间片
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}
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/**
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* @brief 初始化定时功能
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*
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* @param timer_func 队列结构体
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* @param func 定时功能处理函数
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* @param data 传输的数据
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* @param expire_us 定时时长(单位:us)
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*/
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void timer_func_init_us(struct timer_func_list_t *timer_func, void (*func)(void *data), void *data, uint64_t expire_us)
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{
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list_init(&timer_func->list);
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timer_func->func = func;
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timer_func->data = data;
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timer_func->expire_jiffies = cal_next_n_us_jiffies(expire_us); // 设置过期的时间片
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// kdebug("timer_func->expire_jiffies=%ld",cal_next_n_us_jiffies(expire_us));
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}
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/**
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* @brief 将定时功能添加到列表中
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*
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* @param timer_func 待添加的定时功能
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*/
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void timer_func_add(struct timer_func_list_t *timer_func)
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{
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struct timer_func_list_t *tmp = container_of(list_next(&timer_func_head.list), struct timer_func_list_t, list);
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if (list_empty(&timer_func_head.list) == false)
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while (tmp->expire_jiffies < timer_func->expire_jiffies)
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tmp = container_of(list_next(&tmp->list), struct timer_func_list_t, list);
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list_add(&tmp->list, &(timer_func->list));
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}
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/**
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* @brief 将定时功能从列表中删除
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*
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* @param timer_func
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*/
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void timer_func_del(struct timer_func_list_t *timer_func)
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{
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list_del(&timer_func->list);
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}
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uint64_t sys_clock(struct pt_regs *regs)
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{
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return timer_jiffies;
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}
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uint64_t clock()
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{
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return timer_jiffies;
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}
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/**
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* @brief 辅助函数:传进schedule_timeout函数中, 然后时间一到就唤醒 pcb 指向的进程(即自身)
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*
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* @param pcb process_control_block
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*/
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static void __wake_up_helper(void *pcb)
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{
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BUG_ON(pcb == NULL);
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BUG_ON(process_wakeup((struct process_control_block *)pcb) != 0); // 正常唤醒,返回值为0
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}
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/**
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* @brief 睡眠timeout的时间之后唤醒进程/线程
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*
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* @param timeout
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* @return long
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*/
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long schedule_timeout_ms(long timeout)
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{
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if (timeout == MAX_TIMEOUT) // 无期停止, 意味着不会调用func
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{
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sched();
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return MAX_TIMEOUT;
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}
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else if (timeout < 0)
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{
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BUG_ON(1);
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return 0;
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}
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spin_lock(&sched_lock);
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struct timer_func_list_t timer={0};
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timer_func_init(&timer, &__wake_up_helper, current_pcb, timeout);
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timer_func_add(&timer);
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current_pcb->state &= ~(PROC_RUNNING);
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spin_unlock(&sched_lock);
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sched();
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timeout -= timer_jiffies;
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return timeout < 0 ? 0 : timeout;
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} |