"""Agent Python 子进程入口；宿主在启动前施加文件与网络沙箱。"""
import os
from pathlib import Path
import resource
import runpy
import sys


def main():
    script, timeout, memory_mb, *arguments = sys.argv[1:]
    seconds = int(timeout)
    resource.setrlimit(resource.RLIMIT_CPU, (seconds, seconds + 1))
    resource.setrlimit(resource.RLIMIT_FSIZE, (64 * 1024 * 1024,) * 2)
    resource.setrlimit(resource.RLIMIT_NOFILE, (128, 128))
    if sys.platform.startswith('linux'):
        limit = int(memory_mb) * 1024 * 1024
        resource.setrlimit(resource.RLIMIT_AS, (limit, limit))
    sys.path.insert(0, str(Path.cwd()))
    sys.argv = [script, *arguments]
    os.umask(0o077)
    runpy.run_path(script, run_name='__main__')


if __name__ == '__main__':
    main()