202403172356_《Initial sys. of C》

Coca-code發表於2024-03-18
#include <stdbool.h>

typedef enum {
    NOT_RUNNING,
    READY,
    RUNNING,
    BLOCKED,
    SUSPENDED
} task_state_t;

typedef struct {
    task_state_t state;
    void (*task_function)(void*);
    void* task_data;
    // 其他任務特定的資料和函式
} task_t;

typedef struct {
    task_t* tasks;
    int num_tasks;
    int max_tasks;
    task_t* current_task;
} kernel_t;

void kernel_init(kernel_t* kernel, int max_tasks) {
    kernel->tasks = calloc(max_tasks, sizeof(task_t));
    kernel->max_tasks = max_tasks;
    kernel->num_tasks = 0;
    kernel->current_task = NULL;
}

void kernel_add_task(kernel_t* kernel, void (*task_function)(void*), void* task_data) {
    if (kernel->num_tasks < kernel->max_tasks) {
        task_t* task = &kernel->tasks[kernel->num_tasks++];
        task->state = NOT_RUNNING;
        task->task_function = task_function;
        task->task_data = task_data;
    }
}

void vtask_suspend(task_t* task) {
    if (task->state == RUNNING) {
        task->state = SUSPENDED;
    }
}

void vtask_resume(task_t* task) {
    if (task->state == SUSPENDED) {
        task->state = READY;
    }
}

bool vtask_is_suspended(task_t* task) {
    return task->state == SUSPENDED;
}

void blocking_api_function(kernel_t* kernel, task_t* task, void* api_data) {
    task->state = BLOCKED;
    // 處理阻塞API呼叫
    task->state = READY;
}

void kernel_schedule(kernel_t* kernel) {
    for (int i = 0; i < kernel->num_tasks; i++) {
        task_t* task = &kernel->tasks[i];
        if (task->state == READY) {
            task->state = RUNNING;
            kernel->current_task = task;
            task->task_function(task->task_data);
            task->state = NOT_RUNNING;
            kernel->current_task = NULL;
            break;
        }
    }
}

void kernel_dispatch_event(kernel_t* kernel, void* event_data) {
    // 處理事件並更新任務狀態
}

void o_kernel() {
    kernel_t kernel;
    kernel_init(&kernel, 100); // 初始化核心,最大任務數為100

    // 新增任務
    kernel_add_task(&kernel, clock_task, NULL);
    kernel_add_task(&kernel, interrupt_task, NULL);
    kernel_add_task(&kernel, filesystem_task, NULL);
    kernel_add_task(&kernel, memory_management_task, NULL);
    // 新增其他任務...

    while (1) {
        kernel_schedule(&kernel); // 排程任務
        kernel_dispatch_event(&kernel, NULL); // 處理事件
        // 其他核心操作...
    }
}

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