基于特定代码在PERL中具有多个连接的TCP服务器

时间:2015-01-29 11:41:22

标签: perl tcp tcpserver

我使用Perl脚本来创建TCP服务器。它工作正常,但我需要修改它,以便它接受多个连接。这是我使用的代码:

use IO::Socket::INET;

# auto-flush on socket
$| = 1;

# creating a listening socket
my $socket = new IO::Socket::INET (
    LocalHost => '0.0.0.0',
    LocalPort => '5000',
    Proto => 'tcp',
    Listen => 5,
    Reuse => 1
);
die "cannot create socket $!\n" unless $socket;
print "server waiting for client connection on port 5000\n";

while(1)
{
    # waiting for a new client connection
    my $client_socket = $socket->accept();

    # get information about a newly connected client
    my $client_address = $client_socket->peerhost();
    my $client_port = $client_socket->peerport();
    print "connection from $client_address:$client_port\n";

    # read up to 1024 characters from the connected client
    my $data = ":123456F#";

    $client_socket->send($data);

    # write response data to the connected client
    $data = "";
    $client_socket->recv($data, 1024);
    print "received data: $data\n";





    # notify client that response has been sent
    shutdown($client_socket, 1);
}

$socket->close();

我需要修改上面的代码才能使用多个连接。我真的很感激任何帮助。 感谢

1 个答案:

答案 0 :(得分:2)

处理多个套接字有两种主要方法。

第一个是 - 利用IO::Select - 具有can_read函数 - 这允许您测试套接字是否有要读取的数据,并且您可以只迭代套接字列表。阅读IO::Select上的文档,因为它有一个如何正确完成您想要的内容的示例。

另一种方法是并行处理。特别是使用线程或分叉来异步处理$client_socket。我将引用您:Perl daemonize with child daemons(主要是因为重写并行代码有点复杂,因此可能超出范围)。我建议你可能想要一个'forking'方法,因为它通常更适合并行风格。