mirror of https://github.com/hpcaitech/ColossalAI
128 lines
3.4 KiB
Python
128 lines
3.4 KiB
Python
import socket
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from typing import List
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class HostInfo:
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"""
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A data class to store host connection-related data.
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Args:
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hostname (str): name or IP address of the host
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port (str): the port for ssh connection
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"""
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def __init__(
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self,
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hostname: str,
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port: str = None,
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):
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self.hostname = hostname
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self.port = port
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self.is_local_host = HostInfo.is_host_localhost(hostname, port)
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@staticmethod
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def is_host_localhost(hostname: str, port: str = None) -> None:
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"""
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Check if the host refers to the local machine.
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Args:
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hostname (str): name or IP address of the host
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port (str): the port for ssh connection
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Returns:
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bool: True if it is local, False otherwise
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"""
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if port is None:
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port = 22 # no port specified, lets just use the ssh port
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# socket.getfqdn("127.0.0.1") does not return localhost
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# on some users' machines
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# thus, we directly return True if hostname is locahost, 127.0.0.1 or 0.0.0.0
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if hostname in ("localhost", "127.0.0.1", "0.0.0.0"):
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return True
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hostname = socket.getfqdn(hostname)
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localhost = socket.gethostname()
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localaddrs = socket.getaddrinfo(localhost, port)
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targetaddrs = socket.getaddrinfo(hostname, port)
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for (family, socktype, proto, canonname, sockaddr) in localaddrs:
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for (rfamily, rsocktype, rproto, rcanonname, rsockaddr) in targetaddrs:
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if rsockaddr[0] == sockaddr[0]:
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return True
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return False
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def __str__(self):
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return f'hostname: {self.hostname}, port: {self.port}'
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def __repr__(self):
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return self.__str__()
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class HostInfoList:
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"""
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A data class to store a list of HostInfo objects.
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"""
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def __init__(self):
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self.hostinfo_list = []
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def append(self, hostinfo: HostInfo) -> None:
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"""
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Add an HostInfo object to the list.
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Args:
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hostinfo (HostInfo): host information
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"""
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self.hostinfo_list.append(hostinfo)
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def remove(self, hostname: str) -> None:
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"""
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Add an HostInfo object to the list.
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Args:
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hostname (str): the name of the host
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"""
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hostinfo = self.get_hostinfo(hostname)
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self.hostinfo_list.remove(hostinfo)
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def get_hostinfo(self, hostname: str) -> HostInfo:
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"""
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Return the HostInfo object which matches with the hostname.
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Args:
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hostname (str): the name of the host
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Returns:
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hostinfo (HostInfo): the HostInfo object which matches with the hostname
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"""
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for hostinfo in self.hostinfo_list:
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if hostinfo.hostname == hostname:
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return hostinfo
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raise Exception(f"Hostname {hostname} is not found")
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def has(self, hostname: str) -> bool:
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"""
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Check if the hostname has been added.
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Args:
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hostname (str): the name of the host
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Returns:
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bool: True if added, False otherwise
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"""
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for hostinfo in self.hostinfo_list:
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if hostinfo.hostname == hostname:
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return True
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return False
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def __iter__(self):
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return iter(self.hostinfo_list)
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def __len__(self):
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return len(self.hostinfo_list)
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