更新小程序: 钟表

driver/vga.c

@@ -2,8 +2,6 @@
 #include "../include/common.h"
 #include "../include/io.h"
 
-static const size_t VGA_WIDTH = 80;
-static const size_t VGA_HEIGHT = 25;
 
 size_t terminal_row;
 size_t terminal_column;
@@ -16,7 +14,7 @@ static inline uint8_t vga_entry_color(enum vga_color fg, enum vga_color bg) {
     return fg | bg << 4;
 }
 
-static inline uint16_t vga_entry(unsigned char uc, uint8_t color) {
+uint16_t vga_entry(unsigned char uc, uint8_t color) {
     return (uint16_t) uc | (uint16_t) color << 8;
 }
 

include/date.h

@@ -0,0 +1,6 @@
+#ifndef CRASHPOWEROS_DATE_H
+#define CRASHPOWEROS_DATE_H
+
+int setup_date();
+
+#endif //CRASHPOWEROS_DATE_H

include/task.h

@@ -9,6 +9,7 @@ enum task_state {
     TASK_SLEEPING = 1,  // 睡眠中
     TASK_RUNNABLE = 2,  // 可运行(也许正在运行)
     TASK_ZOMBIE = 3,    // 僵尸状态
+    TASK_DEATH = 4     // 终止状态
 } task_state;
 
 struct context {

include/vga.h

@@ -5,6 +5,9 @@
 #include <stdint.h>
 #include <stdarg.h>
 
+#define VGA_WIDTH 80
+#define VGA_HEIGHT 25
+
 #define FLAG_ALTNT_FORM 0x01
 #define FLAG_ALTNT_FORM_CH '#'
 
@@ -58,6 +61,7 @@ void vga_putchar(char c);
 void vga_write(const char* data, size_t size);
 void vga_writestring(const char* data);
 void vga_write_dec(uint32_t dec);
+uint16_t vga_entry(unsigned char uc, uint8_t color);
 void vga_clear();
 void move_cursor();
 void printf(const char *formet, ...);

kernel/kernel.c

@@ -8,6 +8,7 @@
 #include "../include/cmos.h"
 #include "../include/keyboard.h"
 #include "../include/shell.h"
+#include "../include/date.h"
 
 extern uint32_t end;
 uint32_t placement_address = (uint32_t) & end;
@@ -33,7 +34,7 @@ void kernel_main() {
     clock_sleep(25);
 
     kernel_thread(setup_shell,NULL,"CPOS-Shell");
-
+    kernel_thread(setup_date,NULL,"CPOS-Date");
 
     for (;;){
         io_hlt();

kernel/task.c

@@ -25,6 +25,9 @@ void print_proc_t(int *i,struct task_struct *base,struct task_struct *cur){
             case TASK_ZOMBIE:
                 printf("%s      %d     %s\n",cur->name,cur->pid,"Zombie");
                 break;
+            case TASK_DEATH:
+                printf("%s      %d     %s\n",cur->name,cur->pid,"Death");
+                break;
         }
         (*i)++;
     } else{
@@ -41,6 +44,9 @@ void print_proc_t(int *i,struct task_struct *base,struct task_struct *cur){
             case TASK_ZOMBIE:
                 printf("%s      %d     %s\n",cur->name,cur->pid,"Zombie");
                 break;
+            case TASK_DEATH:
+                printf("%s      %d     %s\n",cur->name,cur->pid,"Death");
+                break;
         }
         (*i)++;
         print_proc_t(i,base,cur->next);
@@ -107,9 +113,8 @@ int32_t kernel_thread(int (*fn)(void *), void *arg,char* name) {
 
 void kthread_exit() {
     register uint32_t val asm ("eax");
-
-    printf("Thread exited with value %d\n", val);
-
+    printf("Task exited with value %d\n", val);
+    current->state = TASK_DEATH;
     while (1);
 }
 

kernel/timer.c

@@ -5,6 +5,7 @@
 #include "../include/task.h"
 
 uint32_t tick = 0;
+extern struct task_struct *current;
 
 static void timer_handle(registers_t *regs) {
     io_cli();

sysapp/date.c

@@ -0,0 +1,23 @@
+#include "../include/date.h"
+#include "../include/cmos.h"
+#include "../include/vga.h"
+#include "../include/timer.h"
+
+extern uint16_t *terminal_buffer;
+extern uint8_t terminal_color;
+
+int setup_date(){
+    char* date_info;
+    int i;
+    while (1){
+        clock_sleep(5);
+        date_info = get_date_time(); //11
+        i = 0;
+        for(size_t x = VGA_WIDTH - 17; x < VGA_WIDTH ; x++){
+            const size_t index = (VGA_HEIGHT - 1) * VGA_WIDTH + x;
+            terminal_buffer[index] = vga_entry(date_info[i],terminal_color);
+            i++;
+        }
+    }
+    return 0;
+}