TCPSocket

TCPSocket类

Parent:IPSocket

TCPSocket代表一个TCP / IP客户端套接字。

简单的客户端可能如下所示：

require 'socket'

s = TCPSocket.new 'localhost', 2000

while line = s.gets # Read lines from socket
  puts line         # and print them
end

s.close             # close socket when done

公共类方法

gethostbyname(hostname) → official_hostname, alias_hostnames, address_family, *address_list()

查找通过主机名托管信息。

TCPSocket.gethostbyname("localhost")
#=> ["localhost", ["hal"], 2, "127.0.0.1"]

static VALUE
tcp_s_gethostbyname(VALUE obj, VALUE host)
{
    struct rb_addrinfo *res =
        rsock_addrinfo(host, Qnil, AF_UNSPEC, SOCK_STREAM, AI_CANONNAME
    return rsock_make_hostent(host, res, tcp_sockaddr
}

new(remote_host, remote_port, local_host=nil, local_port=nil) Show source

在remote_port上打开到remote_host的TCP连接。如果指定了local_host和local_port，则在本地使用这些参数来建立连接。

static VALUE
tcp_init(int argc, VALUE *argv, VALUE sock)
{
    VALUE remote_host, remote_serv;
    VALUE local_host, local_serv;

    rb_scan_args(argc, argv, "22", &remote_host, &remote_serv,
                        &local_host, &local_serv

    return rsock_init_inetsock(sock, remote_host, remote_serv,
                               local_host, local_serv, INET_CLIENT
}

new(host, serv, *rest) Show source

# File lib/resolv-replace.rb, line 22
def initialize(host, serv, *rest)
  rest[0] = IPSocket.getaddress(rest[0]) if rest[0]
  original_resolv_initialize(IPSocket.getaddress(host), serv, *rest)
end