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, 2006 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>