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

SYNOPSIS
      use Sys::Syscall;

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

Exports
    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

Functions
  epoll support
    $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].

  sendfile support
    $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.

COPYRIGHT
    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.

Contributing
    Want to contribute? See:

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

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

AUTHORS
    Brad Fitzpatrick <brad@danga.com>