NAME

Linux::FD::Pid - PID file descriptors

VERSION

version 0.002

SYNOPSIS

 use Linux::FD::Pid
 
 my $fh = Linux::FD::Pid($pid)

METHODS

new($pid)

This creates a pidfd file descriptor that can be used to await the termination of a process. This provides an alternative to using SIGCHLD, and has the advantage that the file descriptor may be monitored by select, poll, and epoll.

send($signo)

This sends a signal to the process.

wait($flags = WEXITED)

This waits for the process to end. It's only allowed to be child of the current process. It takes a flags argument like `waitpid`, the constants for this from the POSIX module can be used for this.

get_handle($fd)

This duplicates a handle from another process. Permission to duplicate another process's file descriptor is governed by a ptrace access mode PTRACE_MODE_ATTACH_REALCREDS check.

AUTHOR

Leon Timmermans <leont@cpan.org>

COPYRIGHT AND LICENSE

This software is copyright (c) 2019 by Leon Timmermans.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.