47 lines
1.0 KiB
Python
47 lines
1.0 KiB
Python
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#!/usr/bin/env python3
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import socket
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import pytest
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NEXT_PORT = 10000
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def check_port(port: int) -> bool:
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tcp = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
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udp = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
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with tcp, udp:
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try:
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tcp.bind(("127.0.0.1", port))
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udp.bind(("127.0.0.1", port))
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return True
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except socket.error:
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return False
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def check_port_range(port_range: range) -> bool:
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for port in port_range:
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if not check_port(port):
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return False
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return True
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class Ports:
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def allocate(self, num: int) -> int:
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"""
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Allocates
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"""
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global NEXT_PORT
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while NEXT_PORT + num <= 65535:
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start = NEXT_PORT
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NEXT_PORT += num
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if not check_port_range(range(start, NEXT_PORT)):
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continue
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return start
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raise Exception("cannot find enough free port")
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@pytest.fixture
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def ports() -> Ports:
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return Ports()
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