统一判题函数调用方法

judge_dispatcher/models.py

@@ -8,12 +8,18 @@ class JudgeServer(models.Model):
     # 这个服务器最大可能运行的判题实例数量
     max_instance_number = models.IntegerField()
     left_instance_number = models.IntegerField()
+    workload = models.IntegerField(default=0)
     token = models.CharField(max_length=30)
     # 进行测试用例同步的时候加锁
     lock = models.BooleanField(default=False)
     # status 为 false 的时候代表不使用这个服务器
     status = models.BooleanField(default=True)
 
+    def use_judge_instance(self):
+        self.left_instance_number -= 1
+        self.workload = 100 - int(self.left_instance_number / self.max_instance_number)
+        self.save()
+
     class Meta:
         db_table = "judge_server"