mirror of
https://github.com/QingdaoU/OnlineJudge.git
synced 2024-09-21 08:23:20 +00:00
229 lines
10 KiB
Python
229 lines
10 KiB
Python
import hashlib
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import json
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import logging
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from urllib.parse import urljoin
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import requests
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from django.core.cache import cache
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from django.db import transaction
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from django.db.models import F
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from account.models import User
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from conf.models import JudgeServer, JudgeServerToken
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from contest.models import ContestRuleType, ACMContestRank, OIContestRank
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from judge.languages import languages
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from problem.models import Problem, ProblemRuleType, ContestProblem
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from submission.models import JudgeStatus, Submission
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from utils.cache import judge_cache
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from utils.constants import CacheKey
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logger = logging.getLogger(__name__)
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# 继续处理在队列中的问题
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def process_pending_task():
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if judge_cache.llen(CacheKey.waiting_queue):
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# 防止循环引入
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from judge.tasks import judge_task
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data = json.loads(judge_cache.rpop(CacheKey.waiting_queue))
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judge_task.delay(**data)
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class JudgeDispatcher(object):
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def __init__(self, submission_id, problem_id):
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token = JudgeServerToken.objects.first().token
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self.token = hashlib.sha256(token.encode("utf-8")).hexdigest()
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self.redis_conn = judge_cache
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self.submission = Submission.objects.get(pk=submission_id)
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if self.submission.contest_id:
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self.problem = ContestProblem.objects.select_related("contest")\
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.get(_id=problem_id, contest_id=self.submission.contest_id)
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self.contest = self.problem.contest
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else:
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self.problem = Problem.objects.get(pk=problem_id)
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def _request(self, url, data=None):
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kwargs = {"headers": {"X-Judge-Server-Token": self.token,
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"Content-Type": "application/json"}}
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if data:
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kwargs["data"] = json.dumps(data)
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try:
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return requests.post(url, **kwargs).json()
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except Exception as e:
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logger.error(e.with_traceback())
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@staticmethod
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def choose_judge_server():
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with transaction.atomic():
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# TODO: use more reasonable way
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servers = JudgeServer.objects.select_for_update().all().order_by("task_number")
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servers = [s for s in servers if s.status == "normal"]
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if servers:
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server = servers[0]
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server.used_instance_number = F("task_number") + 1
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server.save()
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return server
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@staticmethod
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def release_judge_res(judge_server_id):
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with transaction.atomic():
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# 使用原子操作, 同时因为use和release中间间隔了判题过程,需要重新查询一下
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server = JudgeServer.objects.select_for_update().get(id=judge_server_id)
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server.used_instance_number = F("task_number") - 1
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server.save()
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def judge(self, output=False):
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server = self.choose_judge_server()
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if not server:
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data = {"submission_id": self.submission.id, "problem_id": self.problem.id}
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self.redis_conn.lpush(CacheKey.waiting_queue, json.dumps(data))
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return
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sub_config = list(filter(lambda item: self.submission.language == item["name"], languages))[0]
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spj_config = {}
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if self.problem.spj_code:
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for lang in languages:
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if lang["name"] == self.problem.spj_language:
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spj_config = lang["spj"]
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break
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data = {
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"language_config": sub_config["config"],
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"src": self.submission.code,
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"max_cpu_time": self.problem.time_limit,
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"max_memory": 1024 * 1024 * self.problem.memory_limit,
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"test_case_id": self.problem.test_case_id,
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"output": output,
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"spj_version": self.problem.spj_version,
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"spj_config": spj_config.get("config"),
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"spj_compile_config": spj_config.get("compile"),
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"spj_src": self.problem.spj_code
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}
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Submission.objects.filter(id=self.submission.id).update(result=JudgeStatus.JUDGING)
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# TODO: try catch
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resp = self._request(urljoin(server.service_url, "/judge"), data=data)
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self.submission.info = resp
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if resp["err"]:
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self.submission.result = JudgeStatus.COMPILE_ERROR
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self.submission.statistic_info["err_info"] = resp["data"]
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else:
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# 用时和内存占用保存为多个测试点中最长的那个
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self.submission.statistic_info["time_cost"] = max([x["cpu_time"] for x in resp["data"]])
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self.submission.statistic_info["memory_cost"] = max([x["memory"] for x in resp["data"]])
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error_test_case = list(filter(lambda case: case["result"] != 0, resp["data"]))
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# 多个测试点全部正确则AC，否则 ACM模式下取第一个错误的测试点的状态, OI模式若全部错误则取第一个错误测试点状态，否则为部分正确
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if not error_test_case:
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self.submission.result = JudgeStatus.ACCEPTED
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elif self.problem.rule_type == ProblemRuleType.ACM or len(error_test_case) == len(resp["data"]):
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self.submission.result = error_test_case[0]["result"]
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else:
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self.submission.result = JudgeStatus.PARTIALLY_ACCEPTED
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self.submission.save()
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self.release_judge_res(server.id)
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self.update_problem_status()
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if self.submission.contest_id:
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self.update_contest_rank()
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else:
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self.update_user_profile()
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# 至此判题结束，尝试处理任务队列中剩余的任务
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process_pending_task()
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def compile_spj(self, service_url, src, spj_version, spj_compile_config, test_case_id):
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data = {"src": src, "spj_version": spj_version,
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"spj_compile_config": spj_compile_config,
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"test_case_id": test_case_id}
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return self._request(urljoin(service_url, "compile_spj"), data=data)
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def update_problem_status(self):
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self.problem.add_submission_number()
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if self.submission.result == JudgeStatus.ACCEPTED:
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self.problem.add_ac_number()
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with transaction.atomic():
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if self.submission.contest_id:
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problem = ContestProblem.objects.select_for_update().get(_id=self.problem.id, contest_id=self.contest.id)
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else:
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problem = Problem.objects.select_related().get(_id=self.problem.id)
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info = problem.statistic_info
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info[self.submission.result] = info.get(self.submission.result, 0) + 1
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problem.statistic_info = info
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problem.save(update_fields=["statistic_info"])
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def update_user_profile(self):
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with transaction.atomic():
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# 更新user profile
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user = User.objects.select_for_update().get(id=self.submission.user_id)
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user_profile = user.userprofile
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user_profile.add_submission_number()
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problems_status = user_profile.problems_status
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if "problems" not in problems_status:
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problems_status["problems"] = {}
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# 之前状态不是ac, 现在是ac了 需要更新用户ac题目数量计数器,这里需要判重
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if problems_status["problems"].get(str(self.problem.id), JudgeStatus.WRONG_ANSWER) != JudgeStatus.ACCEPTED:
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if self.submission.result == JudgeStatus.ACCEPTED:
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user_profile.add_accepted_problem_number()
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problems_status["problems"][str(self.problem.id)] = JudgeStatus.ACCEPTED
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else:
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problems_status["problems"][str(self.problem.id)] = JudgeStatus.WRONG_ANSWER
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user_profile.problems_status = problems_status
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user_profile.save(update_fields=["problems_status"])
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def update_contest_rank(self):
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if self.contest.real_time_rank:
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cache.delete(str(self.contest.id) + "_rank_cache")
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with transaction.atomic():
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if self.contest.rule_type == ContestRuleType.ACM:
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acm_rank, _ = ACMContestRank.objects.select_for_update(). \
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get_or_create(user_id=self.submission.user_id, contest=self.contest)
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self._update_acm_contest_rank(acm_rank)
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else:
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oi_rank, _ = OIContestRank.objects.select_for_update(). \
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get_or_create(user_id=self.submission.user_id, contest=self.contest)
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self._update_oi_contest_rank(oi_rank)
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def _update_acm_contest_rank(self, rank):
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info = rank.submission_info.get(str(self.submission.problem_id))
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# 因前面更改过，这里需要重新获取
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problem = ContestProblem.objects.get(contest_id=self.contest.id, _id=self.problem._id)
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# 此题提交过
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if info:
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if info["is_ac"]:
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return
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rank.total_submission_number += 1
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if self.submission.result == JudgeStatus.ACCEPTED:
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rank.total_ac_number += 1
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info["is_ac"] = True
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info["ac_time"] = (self.submission.create_time - self.contest.start_time).total_seconds()
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rank.total_time += info["ac_time"] + info["error_number"] * 20 * 60
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if problem.total_accepted_number == 1:
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info["is_first_ac"] = True
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else:
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info["error_number"] += 1
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# 第一次提交
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else:
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rank.total_submission_number += 1
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info = {"is_ac": False, "ac_time": 0, "error_number": 0, "is_first_ac": False}
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if self.submission.result == JudgeStatus.ACCEPTED:
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rank.total_ac_number += 1
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info["is_ac"] = True
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info["ac_time"] = (self.submission.create_time - self.contest.start_time).total_seconds()
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rank.total_time += info["ac_time"]
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if problem.total_accepted_number == 1:
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info["is_first_ac"] = True
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else:
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info["error_number"] = 1
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rank.submission_info[str(self.submission.problem_id)] = info
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rank.save()
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def _update_oi_contest_rank(self, rank):
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pass
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