Sys::Syscall - access system calls that Perl doesn't normally provide access to

       Brad Fitzpatrick <brad@danga.com>

perl v5.40.1                                       2025-05-19                                  Sys::Syscall(3pm)

       Want to contribute?  See:

         L<http://contributing.appspot.com/sys-syscall>

       This module is Copyright (c) 2005 Six Apart, Ltd.

       All rights reserved.

       You may distribute under the terms of either the GNU General Public License or the Artistic  License,  as
       specified  in  the  Perl  README  file.   If  you  need  more liberal licensing terms, please contact the
       maintainer.

       Use epoll, sendfile, from Perl.  Mostly Linux-only support now, but more syscalls/OSes planned for
       future.

       Nothing by default.

       May export: sendfile epoll_ctl epoll_create epoll_wait EPOLLIN EPOLLOUT EPOLLERR EPOLLHUP EPOLL_CTL_ADD
       EPOLL_CTL_DEL EPOLL_CTL_MOD

       Export tags:  :epoll and :sendfile

epollsupport
       $ok = epoll_defined()
           Returns true if epoll might be available.  (caller must still test with epoll_create)

       $epfd = epoll_create([ $start_size ])
           Create a new epoll filedescriptor.  Returns -1 if epoll isn't available.

       $rv = epoll_ctl($epfd, $op, $fd, $events)
           See manpage for epoll_ctl

       $count = epoll_wait($epfd, $max_events, $timeout, $arrayref)
           See  manpage  for  epoll_wait.  $arrayref is an arrayref to be modified with the items returned.  The
           values put into $arrayref are arrayrefs of [$fd, $state].

   sendfilesupport
       $ok = sendfile_defined()
           Returns true if sendfile should work on this operating system.

       $sent = sendfile($sock_fd, $file_fd, $max_send)
           Sends up to $max_send bytes from $file_fd to $sock_fd.  Returns bytes actually sent, or -1 on error.

       Sys::Syscall - access system calls that Perl doesn't normally provide access to

         use Sys::Syscall;

       This is free software. IT COMES WITHOUT WARRANTY OF ANY KIND.