perl -- 检查文件句柄是否为标准输入

Question

我在 TCP 服务器上使用 select。我想将 STDIN 添加到选择的文件句柄集中。

#!/usr/bin/perl

use IO::Select;
use IO::Socket::INET;
my $sock = IO::Socket::INET->new(LocalPort => $serv_listen_port, Proto => 'tcp', List    en=> 1);

my $s = IO::Select->new();
$s->add(\*STDIN); #want to be responsive to user input (allow me to type commands for example)
$s->add($sock);

@readytoread=$s->can_read(1); #timeout = 1sec
foreach $readable (@readytoread) {
  if ($readable==$sock) {
    #This was a listen request, I accept and add new client here
  }
  if ($readable == STDIN){ #what to do on this line?
    #This is user typing input into server on terminal
  }
}

需要有关此处代码中倒数第四行的帮助。

Answer 1

$readable->fileno == fileno STDIN

或者，如果您对此感到满意，fileno STDIN 为零，您可以直接检查。