ce32fc019e
* faster reload test * decode-jwt script * replace 'netcat' requirement with python script * fix lapi status test
65 lines
1.7 KiB
Python
Executable file
65 lines
1.7 KiB
Python
Executable file
#!/usr/bin/env python3
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import argparse
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import os
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import socket
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import sys
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import time
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initial_interval = 0.02
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max_interval = 0.5
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def is_fd_open(fd):
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try:
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os.fstat(fd)
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return True
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except OSError:
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return False
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# write to file descriptor 3 if it is open (during bats tests), otherwise stderr
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def write_error(ex):
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fd = 2
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if is_fd_open(3):
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fd = 3
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os.write(fd, str(ex).encode())
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def wait(host, port, timeout):
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t0 = time.perf_counter()
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current_interval = initial_interval
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while True:
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try:
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with socket.create_connection((host, port), timeout=timeout):
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break
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except OSError as ex:
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if time.perf_counter() - t0 >= timeout:
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raise TimeoutError(f'Timeout waiting for {host}:{port} after {timeout}s') from ex
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time.sleep(current_interval)
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current_interval = min(current_interval * 1.5, max_interval)
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def main(argv):
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parser = argparse.ArgumentParser(description="Check if a port is open.")
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parser.add_argument("port", type=int, help="Port number to check")
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parser.add_argument("--host", type=str, default="localhost", help="Host to check")
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parser.add_argument("-t", "--timeout", type=float, default=10.0, help="Timeout duration in seconds")
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parser.add_argument("-q", "--quiet", action="store_true", help="Enable quiet mode")
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args = parser.parse_args(argv)
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try:
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wait(args.host, args.port, args.timeout)
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except TimeoutError as ex:
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if not args.quiet:
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write_error(ex)
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sys.exit(1)
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else:
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sys.exit(0)
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sys.exit(1)
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if __name__ == "__main__":
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main(sys.argv[1:])
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