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51 lines
2.1 KiB
Python
51 lines
2.1 KiB
Python
# coding=utf-8
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from django.db import models
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class JudgeServer(models.Model):
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name = models.CharField(max_length=30)
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ip = models.GenericIPAddressField()
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port = models.IntegerField()
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# 这个服务器最大可能运行的判题实例数量
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max_instance_number = models.IntegerField()
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left_instance_number = models.IntegerField()
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workload = models.IntegerField(default=0)
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token = models.CharField(max_length=30)
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# 进行测试用例同步的时候加锁
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lock = models.BooleanField(default=False)
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# status 为 false 的时候代表不使用这个服务器
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status = models.BooleanField(default=True)
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create_time = models.DateTimeField(auto_now_add=True, blank=True, null=True)
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def use_judge_instance(self):
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# 因为use 和 release 中间是判题时间，可能这个 model 的数据已经被修改了，所以不能直接使用self.xxx，否则取到的是旧数据
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server = JudgeServer.objects.select_for_update().get(id=self.id)
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server.left_instance_number -= 1
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server.workload = 100 - int(float(server.left_instance_number) / server.max_instance_number * 100)
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server.save()
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def release_judge_instance(self):
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# 使用原子操作
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server = JudgeServer.objects.select_for_update().get(id=self.id)
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server.left_instance_number += 1
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server.workload = 100 - int(float(server.left_instance_number) / server.max_instance_number * 100)
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server.save()
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class Meta:
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db_table = "judge_server"
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class JudgeWaitingQueue(models.Model):
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submission_id = models.CharField(max_length=40)
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time_limit = models.IntegerField()
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memory_limit = models.IntegerField()
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test_case_id = models.CharField(max_length=40)
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create_time = models.DateTimeField(auto_now_add=True)
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spj = models.BooleanField(default=False)
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spj_language = models.IntegerField(blank=True, null=True)
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spj_code = models.TextField(blank=True, null=True)
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spj_version = models.CharField(max_length=32, blank=True, null=True)
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class Meta:
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db_table = "judge_waiting_queue"
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