170 lines
6.4 KiB
Python
170 lines
6.4 KiB
Python
# coding=utf-8
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import json
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import time
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import commands
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from Queue import Queue
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from thread_pool import ThreadPool
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from settings import max_running_number, lrun_gid, lrun_uid, use_tmpfs
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from consts import Language, Result
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class JudgeClientException(Exception):
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pass
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class JudgeClient(object):
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def __init__(self, language, exec_file_path, max_cpu_time,
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max_real_time, max_memory, test_case_dir):
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# 语言 c cpp 或者 java
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self.language = language
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# 可执行文件路径，比如 /root/1/a.out /root/1/Main.class
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self.exec_file_path = exec_file_path
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# 最大的cpu时间 单位ms
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self.max_cpu_time = max_cpu_time
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# 最大实际运行时间 单位ms
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self.max_real_time = max_real_time
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# 最大cpu占用，注意不要小于500000 单位byte
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self.max_memory = max_memory
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# 测试用例文件路径，比如/root/testcase/1/
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self.test_case_dir = test_case_dir
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# 判题结果队列
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self.result_queue = Queue()
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# 线程池
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self.thread_pool = ThreadPool(size=max_running_number,
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result_queue=self.result_queue)
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self.thread_pool.start()
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# 测试用例配置项
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self.test_case_info = self.load_test_case_info()
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def load_test_case_info(self):
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# 读取测试用例信息 转换为dict
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# try:
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# f = open(self.test_case_dir + "info")
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# return json.loads(f.read())
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# except IOError:
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# raise JudgeClientException("Test case config file not found")
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# except ValueError:
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# raise JudgeClientException("Test case config file format error")
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return {"test_case_number": 2,
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"test_cases":
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{
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"1": {"input_name": "1.in",
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"output_name": "1.out",
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"output_md5": "yyy",
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"output_size": 100},
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"2": {"input_name": "2.in",
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"output_name": "2.out",
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"output_md5": "yyy",
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"output_size": 100}
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}
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}
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def generate_command(self, test_case_id):
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"""
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设置相关运行限制 进制访问网络 如果启用tmpfs 就把代码输出写入tmpfs，否则写入硬盘
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"""
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# todo 系统调用白名单 chroot等参数
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# fixme 时间的单位问题
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command = "lrun" + \
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" --max-cpu-time " + str(self.max_cpu_time) + \
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" --max-real-time " + str(self.max_real_time) + \
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" --max-memory " + str(self.max_memory) + \
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" --network false" + \
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" --uid " + str(lrun_uid) + \
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" --gid " + str(lrun_gid)
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#if use_tmpfs:
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# command += (" --tmpfs /var " +
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# str(int(self.test_case_info["test_cases"][str(test_case_id)]["output_size"] * 1.2)))
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if self.language == Language.JAVA:
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command += (" java " + self.exec_file_path)
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else:
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command += (" " + self.exec_file_path)
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# fixme 输出路径
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command += (" 0<" + self.test_case_dir + str(test_case_id) + ".in" +
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" 1>" + "/var/judge/" + str(test_case_id) + ".out" +
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" 3>&2")
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return command
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def parse_lrun_output(self, output):
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lines = output.split("\n")
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if len(lines) != 7:
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raise JudgeClientException("Lrun result parse error")
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result = {}
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# 将lrun输出的各种带下划线 不带下划线的字符串统一处理
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translate = {"MEMORY": "memory",
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"CPUTIME": "cpu_time",
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"CPU_TIME": "cpu_time",
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"REALTIME": "real_time",
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"REAL_TIME": "real_time",
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"EXITCODE": "exit_code",
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"EXCEED": "exceed"}
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for line in lines:
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name = line[:9].strip(" ")
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value = line[9:]
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print name, value
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if name == "MEMORY":
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result[translate[name]] = int(value)
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elif name == "CPUTIME":
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result[translate[name]] = float(value) * 1000
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elif name == "REALTIME":
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result[translate[name]] = float(value) * 1000
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elif name == "EXITCODE":
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result[translate[name]] = int(value)
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elif name == "EXCEED":
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if value == "none":
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result[translate[name]] = None
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else:
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result[translate[name]] = translate[value]
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return result
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def judge_one(self, test_case_id):
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# 运行lrun程序 接收返回值
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command = self.generate_command(test_case_id)
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status_code, output = commands.getstatusoutput(command)
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if status_code:
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raise JudgeClientException(output)
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run_result = self.parse_lrun_output(output)
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run_result["test_case_id"] = test_case_id
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# 如果返回值非0，代表非正常结束
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if run_result["exit_code"]:
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run_result["result"] = Result.RUNTIME_ERROR
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return run_result
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# 代表内存或者时间超过限制了
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if run_result["exceed"]:
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if run_result["exceed"] == "memory":
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run_result["result"] = Result.MEMORY_LIMIT_EXCEEDED
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elif run_result["exceed"] in ["cpu_time", "real_time"]:
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run_result["result"] = Result.TIME_LIMIT_EXCEEDED
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else:
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run_result["result"] = Result.SYSTEM_ERROR
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return run_result
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# 下面就是代码正常运行了
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run_result["result"] = Result.ACCEPTED
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return run_result
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def run(self):
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# 添加到任务队列
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for i in range(self.test_case_info["test_case_number"]):
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self.thread_pool.append_job(self.judge_one, i + 1)
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self.thread_pool.join()
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self.thread_pool.stop()
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for i in range(self.test_case_info["test_case_number"]):
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print self.result_queue.get(block=False)
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client = JudgeClient(language=Language.C,
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exec_file_path="/var/judge/a.out",
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max_cpu_time=1000,
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max_real_time=2000,
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max_memory=600000,
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test_case_dir="/var/test_case/1/")
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client.run()
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